REVIEW 2 major objections 10 minor 235 references
105,971 OB stars mapped within 2 kpc reveal local spiral arms and future supernova progenitors
Reviewed by Pith at T0; open to challenge. T0 means a machine referee read the full paper against a public rubric. the ladder, T0–T4 →
T0 review · glm-5.2
2026-07-09 20:36 UTC pith:6EWZAD3X
load-bearing objection Solid OB star catalog extending to 2 kpc; the BH-vs-ccSN excess claim is the soft spot the 2 major comments →
Unveiling the Milky Way with a Gaia DR3 census of OB-type stars within 2 kpc. I. Tracing local Galactic structure, massive star-forming regions and core-collapse supernova progenitors
The pith
A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.
Core claim
By fitting physical parameters for 105,971 OB-type stars within 2 kpc and applying a bimodal supernova model, the paper finds that the local Milky Way currently harbours more massive stars on the verge of direct black hole collapse than on the verge of supernova explosion, an imbalance attributed to a recent burst of massive star formation (likely associated with Cyg OB2) rather than to a steady-state rate. The paper also establishes that no OB-type supernova progenitor is expected to explode within 100 parsecs of Earth in the next 1 million years.
What carries the argument
The central machinery is an astro-photometric Bayesian SED fitter that combines Gaia DR3 parallax and photometry with ground-based optical and near-infrared surveys (2MASS, IGAPS, VPHAS+), constrains extinction using a 3D dust map, and fits stellar atmosphere and evolutionary models to derive initial mass, fractional age, distance, and effective temperature for each star. A statistical core-collapse supernova model (M25) then maps the derived zero-age main-sequence masses onto final fates—successful neutrino-driven supernova with neutron star remnant, failed supernova with black hole remnant, or electron-capture supernova—using metallicity-dependent carbon-oxygen core mass thresholds.
Load-bearing premise
The SED fitting and supernova classification assume every star is a single, non-interacting system. A large fraction of massive OB stars are known to exist in binaries, and binary mass transfer can change a star's final mass, lifetime, and whether it explodes as a supernova or collapses directly into a black hole. The authors acknowledge this limitation explicitly through the case of P Cyg, whose classification flips when binary effects are considered.
What would settle it
If spectroscopic follow-up of the 4,200+ progenitor candidates reveals that a substantial fraction have ZAMS masses or ages inconsistent with the SED-fitted values—particularly if binary companions are detected that shift stars across the supernova / direct-collapse boundary—then the reported excess of imminent BH collapses over supernovae could be an artefact of the single-star assumption rather than a real signature of recent star formation.
If this is right
- The catalogue of 4,200+ ccSN and BH progenitor candidates provides a prioritized target list for spectroscopic follow-up surveys such as WEAVE-SCIP and 4MOST, which can test the SED-fitted masses and ages against direct spectroscopic measurements.
- The finding that more BH collapses than supernovae are expected within 1 Myr, if confirmed, implies that the local core-collapse event rate is time-variable rather than constant, complicating estimates of the Galactic supernova rate that assume steady-state star formation.
- The spatial correlation between OB star overdensities and young open clusters, combined with the ~10% membership fraction of OB stars in clusters, constrains the fraction of massive stars born in clustered environments versus the field.
- Future Gaia DR4 astrometry (expected to be ~2.25 times more precise) and a potential near-infrared successor (GaiaNIR) would push the catalogue deeper into high-extinction regions toward the Galactic Centre, where current optical surveys are incomplete.
Where Pith is reading between the lines
- If the single-star assumption were relaxed, binary mass transfer could strip envelopes and shift progenitors between the supernova and direct-collapse BH channels, potentially altering the reported excess of BH collapses over supernovae. The direction of the effect is not obvious: stripping could push some stars that would have collapsed silently into the explosive channel, or vice versa, dependin
- The reported mean waiting time of ~7,800 years between supernova explosions on the 2 kpc scale, combined with the much longer ~15,000-year average inferred from extrapolating the 1 kpc rate over ~400 Myr, suggests that the local Milky Way is currently in a star-formation overdensity phase. If so, the next few thousand years should see a local supernova rate elevated above the long-term Galactic av
- The offset between OB star overdensities and young open cluster positions in highly extinguished regions like Cyg OB2 implies that OB star catalogues can probe star formation sites that cluster catalogues miss, making the two tracers complementary rather than redundant for mapping embedded massive star formation.
Editorial analysis
A structured set of objections, weighed in public.
Referee Report
Summary. This paper presents a catalogue of 105,971 OB-type stars (T_eff > 10,000 K) within 2 kpc of the Sun, identified via astro-photometric SED fitting of Gaia DR3 data combined with 2MASS, IGAPS, and VPHAS+ photometry. The authors validate their catalogue against spectroscopic surveys (APOGEE, LAMOST, Gaia ESP-HS, SHBoost), demonstrate high completeness (>95% across magnitudes), and map the spatial distribution of young stellar populations across the Galactic thin disk. They identify large-scale structures (Sagittarius-Carina arm, Cepheus Spur, Giant Oval Cavity), compare OB star overdensities with young open clusters from Hunt & Reffert (2024), and use a statistical supernova model (Maltsev et al. 2025) to classify 3,998 ccSN progenitor and 233 direct-collapse BH progenitor candidates. The most novel claim is that more BH progenitors are expected to collapse within 1 Myr than ccSNe to explode, interpreted as evidence for a recent massive star formation burst.
Significance. The catalogue represents a substantial expansion over the authors' previous 1 kpc census (Q25), covering four times the area and providing a valuable community resource for spectroscopic follow-up (WEAVE, 4MOST). The cross-validation against four independent spectroscopic surveys is commendable and lends credibility to the derived effective temperatures. The spatial mapping of OB stars and their correlation with young open clusters provides a useful complementary view to existing structure tracers. The application of a recently developed, observationally-constrained supernova model (M25) to a large stellar census is a genuine attempt to move beyond simple mass-threshold progenitor classifications. The identification of specific ccSN/BH progenitor candidates, while subject to the uncertainties discussed below, provides a concrete target list for follow-up. The authors are transparent about limitations in Appendix F and Section 6.3.3.
major comments (2)
- Section 6.3.1 and the abstract claim that 'more BH progenitors to collapse within the next 1 Myr than ccSN to explode' is indicative of a recent massive star formation burst. This claim is load-bearing for the paper's most novel conclusion, but it rests on classifying stars into fate categories (Table 2) whose thresholds are separated by as little as 1.12 M_sun (between 22.20 and 23.32 M_sun). The SED-fitted log(M/M_sun) has a 1-sigma of ~0.14 dex (Section 2.3), corresponding to ~32% uncertainty in linear mass (~7 M_sun at 22 M_sun). This uncertainty far exceeds the spacing between adjacent fate thresholds. The classification in Section 6.2 uses median SED-fitted ZAMS masses, collapsing the full posterior to a point estimate. If the mass posteriors were propagated through the Table 2 thresholds, the apparent excess of BH progenitors could be an artifact of classification noise near the 8
- Section 6.3.3 acknowledges that *P Cyg is a likely binary donor whose classification changes when binary effects are considered, and the SED fitter assumes all stars are single (Section 3.2.2). Given that a large fraction of massive OB stars are in binary systems, this assumption systematically affects derived ZAMS masses, ages, and therefore both the individual progenitor classifications and the statistical distribution of waiting times. The paper should quantify or at least bound the impact of binarity on the relative BH/ccSN numbers. Without this, the central claim in Section 6.3.1 remains uncertain. A Monte Carlo test injecting a realistic binary fraction and mass-ratio distribution into the SED fitting pipeline, then re-classifying fates, would suffice to demonstrate robustness.
minor comments (10)
- Section 2.1, Eq. (1): the threshold M_G < 1.5 mag is described as 'more liberal' than the A0V value of 1 mag from Pecaut & Mamajek (2013). It would help to state explicitly what contamination fraction this liberal threshold introduces, or reference the contamination analysis already performed in Q25.
- Section 3.2.1: the comparison with APOGEE shows a tendency to overestimate temperatures, opposite to the other surveys. The authors attribute this to APOGEE's 20,000 K model grid limit. It would strengthen the paper to show a histogram or subsample restricted to T_eff < 20,000 K to confirm that the offset vanishes there.
- Section 4.1, right panel of Fig. 5: the overdensity parameter Delta_Sigma is defined in Appendix D, but the bandwidth choices (h_local = 100 pc, h_mean = 500 pc) are stated only in the appendix. These should be mentioned in the main text caption or Section 4.1 for self-contained reading.
- Table 3: several entries have extremely asymmetric error bars on distance (e.g., chi Oph: 705 +1975/-351 pc). These large upper bounds suggest the SED-fitted distance posterior is poorly constrained for some sources. A note flagging which entries have distance uncertainties exceeding the median would help readers assess the reliability of individual progenitor candidates.
- Section 5: the claim that ~10% of OB stars are found in clustered environments is compared to the ~38% of OB association members that are also cluster members within 1 kpc. The jump from 1 to 2 kpc changes the surface area by a factor of 4, so a direct comparison of these fractions without accounting for volume-dependent completeness may be misleading. A brief clarification would help.
- Figure 12 caption: the text mentions '10 ccSN progenitor candidates we expect to explode within less than 1 Myr (as blue stars)' but Table 3 lists 10 entries above the dashed line, some with tau_cc > 0.8 Myr. The caption should clarify that these are the 10 with the shortest median waiting times, not all with tau_cc < 1 Myr.
- Appendix E: the comparison with alternative spiral arm models is useful but somewhat cursory. A quantitative metric (e.g., cross-correlation between OB star density and model arm positions) would strengthen the comparison beyond visual inspection.
- Section 6.1.2: the minimum M_ZAMS thresholds of 8.55 and 8.85 M_sun for electron-capture and neutrino-driven SNe are derived from specific stellar evolution models (Temaj et al. 2024). A brief note on how sensitive these thresholds are to the choice of model would provide context for the reader.
- Typo in Section 6.3: 'pens within less than 100 years' should be 'happens within less than 100 years'.
- Section 3.2.2: the median offset of 0.06 dex in log(M/M_sun) relative to HR24 is attributed to methodological differences. Given that this offset is comparable to the 1-sigma scatter (~0.14 dex), a brief discussion of whether a simple additive correction would improve agreement would be useful.
Circularity Check
No significant circularity found; derivation chain is self-contained against external benchmarks
full rationale
The paper's main derivation chain is: (1) select OB star candidates from Gaia DR3 photometry/astrometry using standard quality cuts (Section 2.1); (2) fit stellar parameters (Teff, log(M/M_sun), fractional age, distance) via SED fitting using external stellar atmosphere models (BT-NextGen, Kurucz, Tübingen NLTE) and external evolutionary models (Ekström et al. 2012), with extinction from the external Edenhofer et al. (2024) 3D map (Section 2.2); (3) classify final fates using the Maltsev et al. (2025) SN model, which maps M_ZAMS thresholds to outcomes (Table 2). The SED fitter itself is described in Q25 (Quintana et al. 2025a), a self-citation, but it is validated against four independent spectroscopic surveys (Gaia ESP-HS, APOGEE DR17, LAMOST DR6, SHBoost 2024) in Section 3.2.1, and initial masses are cross-checked against the independent Hunt & Reffert (2024) cluster catalogue in Section 3.2.2. The M25 SN model (Maltsev et al. 2025, co-authored by present author Maltsev) is an external model validated against gravitational wave observations (Willcox et al. 2025). The key novel claim — more BH progenitors collapsing within 1 Myr than ccSNe exploding — is an output of combining fitted masses/ages with the M25 fate thresholds, not a quantity that was fitted to or defined in terms of the output. The stellar evolution models (Ekström et al. 2012) and the M_CO-to-M_ZAMS relation (Schneider et al. 2021; Temaj et al. 2024) are fully external. While the single-star assumption and mass uncertainties (noted by the skeptic) are legitimate correctness concerns, they do not constitute circularity: the prediction is not forced by construction or by a self-citation chain. The authors transparently acknowledge in Appendix F that individual error bars are too large for faithful individual predictions, and in Section 6.3.3 that binarity changes classifications. These are honest limitations, not circular reasoning. The self-citations (Q25 for the SED fitter, M25 for the SN model) are not load-bearing in a circular sense because both are independently validated against external data. Score 1 reflects the minor self-citation of the SED fitter, which is not circular but warrants noting.
Axiom & Free-Parameter Ledger
free parameters (3)
- CMD selection thresholds =
M_G < 1.5 mag, (BP-RP)_0 < 0.5 mag
- Overdensity bandwidths =
h_local = 100 pc, h_mean = 500 pc
- SED fitter additional uncertainty ln(f)
axioms (4)
- domain assumption Single-star evolution models (Ekström et al. 2012) accurately represent the life cycles of the observed OB stars.
- domain assumption The M25 supernova model (Maltsev et al. 2025) correctly predicts the final fate (SN vs. BH) of massive stars based on M_CO and metallicity.
- domain assumption The 3D extinction map from Edenhofer et al. (2024), including its reconstructed version beyond 1.25 kpc, provides accurate A_V values.
- domain assumption The Gaia DR3 astrometric and photometric data, after the applied corrections, are sufficiently complete and accurate for this census.
read the original abstract
O- and B-type stars are young and hot, thereby serving as vital tracers of the star formation and spiral arm structure of the Milky Way. At the dusk of the \textit{Gaia} DR3 era, a high-confidence and accurate catalogue appears timely. Here we have characterized a population of 105,971 OB-type stars (T$_{\rm eff} >$ 10,000 K; hereafter OB stars) within 2 kpc from the Sun, using an astro-photometric Bayesian inference tool. Our resulting map unveils a complex view of the young stellar populations across the thin disk, with prominent large-scale features such as the Cepheus Spur, the Giant Oval Cavity, and a segment of the Sagittarius-Carina spiral arm all visible. Their inhomogeneous spatial distribution implies that massive star formation has taken place clustered across a few highly concentrated regions. We find a correlation between the overdensities of OB stars and young open clusters ($<$20 Myr), although OB stars can be better detected in high-extinction regions. We identify over 4200 OB stars as core-collapse supernova (ccSN) or direct-collapse black hole (BH) progenitor candidates, and therefore targets of interest for spectroscopic follow-up. Furthermore, we find no OB-type star ccSN progenitor to explode within the next 1 Myr within 100 pc, at which such an event could be harmful to Earth's biosphere. Finally, we identify more BH progenitors to collapse within the next 1 Myr than ccSN to explode, despite the former's much scarcer number - which could be indicative of a recent massive star formation burst in the local Milky Way.
Figures
Reference graph
Works this paper leans on
-
[1]
Gaia Data Release 3: Summary of the content and survey properties
Gaia Data Release 3. Summary of the content and survey properties. , keywords =. doi:10.1051/0004-6361/202243940 , archivePrefix =. 2208.00211 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/202243940
-
[2]
Stellar Structure and Evolution
-
[3]
An introduction to modern astrophysics, Second Edition
-
[4]
, year = 1966, month = mar, volume =
The Hydrodynamic Behavior of Supernovae Explosions. , year = 1966, month = mar, volume =. doi:10.1086/148549 , adsurl =
-
[5]
Unusual integrated metallicity profile of our Milky Way
The integrated metallicity profile of the Milky Way. Nature Astronomy , keywords =. doi:10.1038/s41550-023-01977-z , archivePrefix =. 2306.14100 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1038/s41550-023-01977-z
-
[6]
Compact Remnant Mass Function: Dependence on the Explosion Mechanism and Metallicity
Compact Remnant Mass Function: Dependence on the Explosion Mechanism and Metallicity. , keywords =. doi:10.1088/0004-637X/749/1/91 , archivePrefix =. 1110.1726 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1088/0004-637x/749/1/91
-
[7]
X-ray Detectability of Accreting Isolated Black Holes in Our Galaxy
X-ray detectability of accreting isolated black holes in our Galaxy. , keywords =. doi:10.1093/mnras/sty699 , archivePrefix =. 1801.04667 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/mnras/sty699
-
[8]
Confirming Nunki as the closest core collapse progenitor candidate to the Sun. arXiv e-prints , keywords =. doi:10.48550/arXiv.2603.17011 , archivePrefix =. 2603.17011 , primaryClass =
-
[9]
GWTC-5.0: Population Properties of Merging Compact Binaries
GWTC-5.0: Population Properties of Merging Compact Binaries. arXiv e-prints , keywords =. doi:10.48550/arXiv.2605.27226 , archivePrefix =. 2605.27226 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.48550/arxiv.2605.27226
-
[10]
The search for failed supernovae with the Large Binocular Telescope: a new candidate and the failed SN fraction with 11 yr of data. , keywords =. doi:10.1093/mnras/stab2605 , archivePrefix =. 2104.03318 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/mnras/stab2605
-
[11]
Multiplicity of Galactic Luminous Blue Variable stars
Multiplicity of Galactic luminous blue variable stars. , keywords =. doi:10.1051/0004-6361/202040062 , archivePrefix =. 2105.12380 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/202040062
-
[12]
The Pair-Instability Mass Gap for Black Holes
The Pair-instability Mass Gap for Black Holes. , keywords =. doi:10.3847/2041-8213/abf2c4 , archivePrefix =. 2103.07933 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.3847/2041-8213/abf2c4 2041
-
[13]
White dwarf models for type I supernovae and quiet supernovae, and presupernova evolution. , keywords =. doi:10.1007/BF00168350 , adsurl =
-
[14]
Ultra-stripped supernovae: progenitors and fate
Ultra-stripped supernovae: progenitors and fate. , keywords =. doi:10.1093/mnras/stv990 , archivePrefix =. 1505.00270 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/mnras/stv990
-
[15]
The Neutron Star and Black Hole Initial Mass Function
The Neutron Star and Black Hole Initial Mass Function. , keywords =. doi:10.1086/176778 , archivePrefix =. astro-ph/9510136 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1086/176778
-
[16]
, year = 1971, month = jan, volume =
Neutron-Star Formation, Thermonuclear Supernovae, and Heavy-Element Reimplosion. , year = 1971, month = jan, volume =. doi:10.1086/150760 , adsurl =
-
[17]
astroquery: An Astronomical Web-Querying Package in Python
astroquery: An Astronomical Web-querying Package in Python. , keywords =. doi:10.3847/1538-3881/aafc33 , archivePrefix =. 1901.04520 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.3847/1538-3881/aafc33 1901
-
[18]
Estimating Distances from Parallaxes. V. Geometric and Photogeometric Distances to 1.47 Billion Stars in Gaia Early Data Release 3. , keywords =. doi:10.3847/1538-3881/abd806 , archivePrefix =. 2012.05220 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.3847/1538-3881/abd806 2012
-
[19]
Validation of the accuracy and precision of Gaia EDR3 parallaxes with globular clusters
Validation of the accuracy and precision of Gaia EDR3 parallaxes with globular clusters. , keywords =. doi:10.1051/0004-6361/202140418 , archivePrefix =. 2101.10206 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/202140418
-
[20]
An estimation of the Gaia EDR3 parallax bias from stellar clusters and Magellanic Clouds data
An estimation of the Gaia EDR3 parallax bias from stellar clusters and Magellanic Clouds data. , keywords =. doi:10.1051/0004-6361/202142365 , archivePrefix =. 2110.01475 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/202142365
-
[21]
A census of OB stars within 1 kpc and the star formation and core collapse supernova rates of the Milky Way. , keywords =. doi:10.1093/mnras/staf083 , archivePrefix =. 2503.08286 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/mnras/staf083
-
[22]
Reanalysis of the Gaia Data Release 2 photometric sensitivity curves using HST/STIS spectrophotometry. , keywords =. doi:10.1051/0004-6361/201834051 , archivePrefix =. 1808.02820 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/201834051
-
[23]
Stellar variability in Gaia DR3. I. Three-band photometric dispersions for 145 million sources. , keywords =. doi:10.1051/0004-6361/202346759 , archivePrefix =. 2304.14249 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/202346759
-
[24]
Gaia Early Data Release 3: Photometric content and validation
Gaia Early Data Release 3. Photometric content and validation. , keywords =. doi:10.1051/0004-6361/202039587 , archivePrefix =. 2012.01916 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/202039587 2012
-
[25]
Astronomical Data Analysis Software and Systems XIV , year = 2005, editor =
TOPCAT & STIL: Starlink Table/VOTable Processing Software. Astronomical Data Analysis Software and Systems XIV , year = 2005, editor =
work page 2005
-
[26]
Astropy: A Community Python Package for Astronomy
Astropy: A community Python package for astronomy. , keywords =. doi:10.1051/0004-6361/201322068 , archivePrefix =. 1307.6212 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/201322068
-
[27]
A parsec-scale Galactic 3D dust map out to 1.25 kpc from the Sun
A parsec-scale Galactic 3D dust map out to 1.25 kpc from the Sun. , keywords =. doi:10.1051/0004-6361/202347628 , archivePrefix =. 2308.01295 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/202347628
-
[28]
Parameters of 220 million stars from Gaia BP/RP spectra
Parameters of 220 million stars from Gaia BP/RP spectra. , keywords =. doi:10.1093/mnras/stad1941 , archivePrefix =. 2303.03420 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/mnras/stad1941
-
[29]
The flare and spiral structure of the Milky Way's disc as traced by young giant stars
The flare and spiral structure of the Milky Way's disc as traced by young giant stars. arXiv e-prints , keywords =. doi:10.48550/arXiv.2605.12603 , archivePrefix =. 2605.12603 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.48550/arxiv.2605.12603
-
[30]
Gaia Data Release 3. Apsis. II. Stellar parameters. , keywords =. doi:10.1051/0004-6361/202243919 , archivePrefix =. 2206.05992 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/202243919
-
[31]
Intrinsic Colors, Temperatures, and Bolometric Corrections of Pre-Main Sequence Stars
Intrinsic Colors, Temperatures, and Bolometric Corrections of Pre-main-sequence Stars. , keywords =. 2013. doi:10.1088/0067-0049/208/1/9 , archivePrefix =. 1307.2657 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1088/0067-0049/208/1/9 2013
-
[32]
The Optical to Mid-infrared Extinction Law Based on the APOGEE, Gaia DR2, Pan-STARRS1, SDSS, APASS, 2MASS, and WISE Surveys. , keywords =. doi:10.3847/1538-4357/ab1c61 , archivePrefix =. 1904.04575 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.3847/1538-4357/ab1c61 1904
-
[33]
emcee: The MCMC Hammer. , keywords =. 2013. doi:10.1086/670067 , archivePrefix =. 1202.3665 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1086/670067 2013
-
[34]
The wide-field, multiplexed, spectroscopic facility WEAVE: Survey design, overview, and simulated implementation. , keywords =. doi:10.1093/mnras/stad557 , archivePrefix =. 2212.03981 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/mnras/stad557
-
[35]
2MASS All Sky Catalog of point sources
-
[36]
Gaia Data Release 1. Cross-match with external catalogues - Algorithm and results
Gaia Data Release 1. Cross-match with external catalogues. Algorithm and results. , keywords =. doi:10.1051/0004-6361/201730965 , archivePrefix =. 1710.06739 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/201730965
-
[37]
Gaia Data Release 2. Cross-match with external catalogues - Algorithms and results
Gaia Data Release 2. Cross-match with external catalogues: algorithms and results. , keywords =. doi:10.1051/0004-6361/201834142 , archivePrefix =. 1808.09151 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/201834142
-
[38]
The INT Photometric H Survey of the Northern Galactic Plane (IPHAS). , keywords =. 2005. doi:10.1111/j.1365-2966.2005.09330.x , archivePrefix =. astro-ph/0506726 , primaryClass =
-
[39]
IGAPS: the merged IPHAS and UVEX optical surveys of theNorthern Galactic Plane
IGAPS: the merged IPHAS and UVEX optical surveys of the northern Galactic plane. , keywords =. doi:10.1051/0004-6361/201937333 , archivePrefix =. 2002.05157 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/201937333 2002
-
[40]
The VST Photometric Halpha Survey of the Southern Galactic Plane and Bulge (VPHAS+)
The VST Photometric H Survey of the Southern Galactic Plane and Bulge (VPHAS+). , keywords =. doi:10.1093/mnras/stu394 , archivePrefix =. 1402.7024 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/mnras/stu394
-
[41]
Grids of stellar models with rotation. I. Models from 0.8 to 120 M _ ☉ at solar metallicity (Z = 0.014). , keywords =. 2012. doi:10.1051/0004-6361/201117751 , archivePrefix =. 1110.5049 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/201117751 2012
-
[42]
A new library of theoretical stellar spectra with scaled-solar and alpha-enhanced mixtures
A new library of theoretical stellar spectra with scaled-solar and -enhanced mixtures. , keywords =. 2014. doi:10.1093/mnras/stu365 , archivePrefix =. 1404.3243 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/mnras/stu365 2014
-
[43]
Stellar Atmosphere Modeling, ASP Conference Proceedings, Vol
Handling of Atomic Data. Stellar Atmosphere Modeling, ASP Conference Proceedings, Vol. 288. Editors: Ivan Hubeny, Dimitri Mihalas, and Klaus Werner. San Francisco: Astronomical Society of the Pacific, ISBN: 1-58381-131-1, 2003, p.103 , year = "2003", volume =
work page 2003
-
[44]
Stellar Atmosphere Modeling, ASP Conference Proceedings, Vol
Model Photospheres with Accelerated Lambda Iteration. Stellar Atmosphere Modeling, ASP Conference Proceedings, Vol. 288. Abstracts from a conference held 8-12 April 2002 in Tuebingen, Germany. Editors: Ivan Hubeny, Dimitri Mihalas, and Klaus Werner. San Francisco: Astronomical Society of the Pacific, ISBN: 1-58381-131-1, 2003, p.31 , year = "2003", volume =
work page 2002
-
[45]
Journal of Computational and Applied Mathematics , keywords =
The classical stellar atmosphere problem. Journal of Computational and Applied Mathematics , keywords =
-
[46]
The Chemical Composition of the Sun. , keywords =. doi:10.1146/annurev.astro.46.060407.145222 , archivePrefix =. 0909.0948 , primaryClass =
-
[47]
Philosophical Transactions of the Royal Society of London Series A , keywords =
Models of very-low-mass stars, brown dwarfs and exoplanets. Philosophical Transactions of the Royal Society of London Series A , keywords =. doi:10.1098/rsta.2011.0269 , archivePrefix =. 1112.3591 , primaryClass =
-
[48]
A cross-match with Gaia DR3 and an extension based on new spectral classifications
The Alma catalogue of OB stars ─ III. A cross-match with Gaia DR3 and an extension based on new spectral classifications. , keywords =. doi:10.1093/mnras/staf1409 , archivePrefix =. 2508.14875 , primaryClass =
-
[49]
Catalog of Galactic OB Stars. , keywords =. doi:10.1086/374771 , adsurl =
-
[50]
A Galactic O Star Catalog. , keywords =. doi:10.1086/381380 , archivePrefix =. astro-ph/0311196 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1086/381380
-
[51]
Mapping Luminous Hot Stars in the Galaxy
Mapping luminous hot stars in the Galaxy. , keywords =. doi:10.1051/0004-6361/202039726 , archivePrefix =. 2102.08684 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/202039726
-
[52]
Gaia Data Release 3: A Golden Sample of Astrophysical Parameters
Gaia Data Release 3. A golden sample of astrophysical parameters. , keywords =. doi:10.1051/0004-6361/202243800 , archivePrefix =. 2206.05870 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/202243800
-
[53]
The Galactic spiral structure as revealed by O- and early B-type stars
The Galactic spiral structure as revealed by O- and early B-type stars. , keywords =. doi:10.1093/mnras/stz1357 , archivePrefix =. 1905.05542 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/mnras/stz1357 1905
-
[54]
Transferring spectroscopic stellar labels to 217 million Gaia DR3 XP stars with SHBoost
Transferring spectroscopic stellar labels to 217 million Gaia DR3 XP stars with SHBoost. , keywords =. doi:10.1051/0004-6361/202451427 , archivePrefix =. 2407.06963 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/202451427
-
[55]
Galactic spiral structure revealed by Gaia EDR3
Galactic spiral structure revealed by Gaia EDR3. , keywords =. doi:10.1051/0004-6361/202140687 , archivePrefix =. 2103.01970 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/202140687
-
[56]
The Galactic warp revealed by Gaia DR2 kinematics
The Galactic warp revealed by Gaia DR2 kinematics. , keywords =. doi:10.1093/mnrasl/sly148 , archivePrefix =. 1805.03171 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/mnrasl/sly148
-
[57]
ASPCAP: The Apogee Stellar Parameter and Chemical Abundances Pipeline
ASPCAP: The APOGEE Stellar Parameter and Chemical Abundances Pipeline. , keywords =. doi:10.3847/0004-6256/151/6/144 , archivePrefix =. 1510.07635 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.3847/0004-6256/151/6/144
-
[58]
The Seventeenth Data Release of the Sloan Digital Sky Surveys: Complete Release of MaNGA, MaStar, and APOGEE-2 Data. , keywords =. doi:10.3847/1538-4365/ac4414 , archivePrefix =. 2112.02026 , primaryClass =
-
[59]
Gaia Data Release 3. Astrophysical parameters inference system (Apsis). I. Methods and content overview. , keywords =. doi:10.1051/0004-6361/202243688 , archivePrefix =. 2206.05864 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/202243688
-
[60]
Stellar labels for hot stars from low-resolution spectra. I. The HotPayne method and results for 330 000 stars from LAMOST DR6. , keywords =. doi:10.1051/0004-6361/202141570 , archivePrefix =. 2108.02878 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/202141570
-
[61]
A Catalogue of OB Stars from LAMOST Spectroscopic Survey
A Catalog of OB Stars from LAMOST Spectroscopic Survey. , keywords =. doi:10.3847/1538-4365/ab0a0d , archivePrefix =. 1902.07607 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.3847/1538-4365/ab0a0d 1902
-
[62]
A new Gaia census of OB associations within 1 kpc
A new Gaia census of OB associations within 1 kpc. , keywords =. doi:10.1093/mnras/stag853 , archivePrefix =. 2512.05854 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/mnras/stag853
-
[63]
Disentangling the spatial substructure of Cygnus OB2 from Gaia DR2
Disentangling the spatial substructure of Cygnus OB2 from Gaia DR2. , keywords =. doi:10.1093/mnras/stz117 , archivePrefix =. 1901.02959 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/mnras/stz117 1901
-
[64]
Studies in Galactic Structure. I. a Preliminary Determination of the Space Distribution of the Blue Giants. , year = 1953, month = sep, volume =. doi:10.1086/145754 , adsurl =
-
[65]
The Alma catalogue of OB stars - II. A cross-match with Gaia DR2 and an updated map of the solar neighbourhood. , keywords =. doi:10.1093/mnras/stab688 , archivePrefix =. 2103.02748 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/mnras/stab688
-
[66]
The observed spiral structure of the Milky Way
The observed spiral structure of the Milky Way. , keywords =. doi:10.1051/0004-6361/201424039 , archivePrefix =. 1407.7331 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/201424039
-
[67]
A three-dimensional map of the Milky Way using classical Cepheid variable stars
A three-dimensional map of the Milky Way using classical Cepheid variable stars. Science , keywords =. doi:10.1126/science.aau3181 , archivePrefix =. 1806.10653 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1126/science.aau3181
-
[68]
Trigonometric Parallaxes Of High-Mass Star Forming Regions: Our View Of The Milky Way
Trigonometric Parallaxes of High-mass Star-forming Regions: Our View of the Milky Way. , keywords =. doi:10.3847/1538-4357/ab4a11 , archivePrefix =. 1910.03357 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.3847/1538-4357/ab4a11 1910
-
[69]
Galaxies in the universe : an introduction
-
[70]
Star-forming complexes and the spiral structure of our Galaxy. , keywords =. doi:10.1051/0004-6361:20021504 , adsurl =
-
[71]
, year = 2009, month = mar, volume =
The Spitzer/GLIMPSE Surveys: A New View of the Milky Way. , year = 2009, month = mar, volume =. doi:10.1086/597811 , adsurl =
-
[72]
Open clusters in Auriga OB2. , keywords =. doi:10.1093/mnras/stw640 , archivePrefix =. 1604.03881 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/mnras/stw640
-
[73]
Quantifying the scale of star formation across the Perseus spiral arm using young clusters around Cas OB5. , keywords =. doi:10.1051/0004-6361/202452615 , archivePrefix =. 2504.01748 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1051/0004-6361/202452615
-
[74]
Mapping the distribution of OB stars and associations in Auriga
Mapping the distribution of OB stars and associations in Auriga. , keywords =. doi:10.1093/mnras/stad1160 , archivePrefix =. 2304.08370 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/mnras/stad1160
-
[75]
Trigonometric Parallaxes of Star Forming Regions in the Perseus Spiral Arm
Trigonometric Parallaxes of Star Forming Regions in the Perseus Spiral Arm. , keywords =. doi:10.1088/0004-637X/790/2/99 , archivePrefix =. 1407.1609 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1088/0004-637x/790/2/99
-
[76]
Spiral Structure in the Outer Galactic Disk. I. The Third Galactic Quadrant. , keywords =. doi:10.1086/524003 , archivePrefix =. 0709.3973 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1086/524003
-
[77]
Evolution of the Local Spiral Structure Revealed by OB-type Stars in Gaia DR3. , keywords =. doi:10.3847/1538-3881/ad5201 , adsurl =
-
[78]
SPYGLASS. IV. New Stellar Survey of Recent Star Formation within 1 kpc. , keywords =. doi:10.3847/1538-4357/ace5b3 , archivePrefix =. 2306.08150 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.3847/1538-4357/ace5b3
-
[79]
The Cygnus superbubble revisited. , keywords =. doi:10.1051/0004-6361:20010387 , adsurl =
-
[80]
The Massive Star Population of Cygnus OB2
The massive star population of Cygnus OB2. , keywords =. doi:10.1093/mnras/stv323 , archivePrefix =. 1502.05718 , primaryClass =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.1093/mnras/stv323
discussion (0)
Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.