Reveals a pristine scale-invariant 3D Kolmogorov turbulence cascade in the Polaris Flare with an analytical mapping showing the apparent transition arises from projection and density fractal dimension changes.
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M., Hartmann, D., & Thaddeus, P
33 Pith papers cite this work, alongside 1,820 external citations. Polarity classification is still indexing.
33
Pith papers citing it
1,820
external citations · Pith
abstract
New large-scale CO surveys of the first and second Galactic quadrants and the nearby molecular cloud complexes in Orion and Taurus, obtained with the CfA 1.2 m telescope, have been combined with 31 other surveys obtained over the past two decades with that instrument and a similar telescope on Cerro Tololo in Chile, to produce a new composite CO survey of the entire Milky Way. The survey consists of 488,000 spectra that Nyquist or beamwidth (1/8-deg) sample the entire Galactic plane over a strip 4-10 deg wide in latitude, and beamwidth or 1/4-deg sample nearly all large local clouds at higher latitudes. A map of molecular column density predicted from complete and unbiased far-infrared and 21 cm surveys of the Galaxy was used both to determine the completeness of the present survey and to extrapolate it to the entire sky at |b| < 32 deg. The close agreement of the observed and predicted maps implies that only ~2% of the total CO emission at |b| < 32 deg lies outside our current sampling. Taking into account this small amount of unobserved emission, the mean molecular column density decreases from ~3 E20 cm-2 at |b| = 5 deg to ~0.1 E20 cm-2 at |b| = 30 deg. The ratio of the predicted molecular column density map to the observed CO intensity map provides a calibration of the CO-to-H2 mass conversion factor X = N(H2)/Wco. Out of the Galactic plane (|b| > 5 deg), X shows little systematic variation with latitude from a mean value of 1.8 +/- 0.3 E20 cm-2 K-1 km-1 s. Given the large sky area and large quantity of CO data analyzed, we conclude that this is the most reliable measurement to date of the mean X value in the solar neighborhood.
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representative citing papers
Computes neutrino template maps from the Galactic Plane including star cluster emission, finding the cluster contribution may be non-negligible and consistent with IceCube best-fit templates.
JWST observations identify all massive young embedded star clusters in the Antennae, revealing they are extremely young, heavily obscured, and account for ~60% of the ionizing luminosity.
A Bayesian inference method combining HI4PI radio data with Gaia-based 3D dust maps reconstructs the 3D density, velocity, and line-width of local atomic hydrogen within 1.25 kpc, validated by synthetic tests and independent maser/cluster velocity comparisons.
Reports new distance estimates for nine southern Galactic supernova remnants (1.81–10.85 kpc) using Mopra CO data to identify interacting molecular clouds combined with DECaPS 3D dust extinction maps.
Discovery of Thunder, a bow-shock PWN powered by PSR J1631-4722 in SNR G336.7+0.5 (Nimbus), characterized with radio, X-ray, and polarization data at assumed 7 kpc distance with age ~30-45 kyr.
Information-theoretic analysis of TNG50 simulations finds high mutual information (0.4-0.8) between bar and spiral parameters and comparable transfer entropy (0.33-0.42) in both directions, indicating mutual co-regulation.
Resolved HI observations of six baryon-dominated dwarf galaxy candidates show four are dark-matter deficient with high baryon efficiency, two in isolated environments without tidal signs.
Discovery of extended GeV gamma-ray emission from AFGL 490, with the protostellar jet identified as the likely particle accelerator rather than stellar winds.
A hard GeV excess near LHAASO J1912+1014u is spatially consistent with interstellar gas and, after accounting for electron cooling, favors a hadronic PeVatron with Wp = (1-5) x 10^49 erg.
LHAASO gamma-ray data from G150.3+4.5 and γ-Cygni show high-energy components produced by PeV cosmic rays from supernova remnants colliding with molecular clouds.
The radio/infrared/gamma-ray correlation in star-forming galaxies emerges from geometric projection through a radially structured disc, not from local cosmic-ray calorimetry.
New JWST data on 23 galaxies at 0.5<z<1.7 show median dark matter fraction of 0.63 at effective radius with 0.2 dex scatter, and a mix of rising, flat, and falling rotation curves.
The paper outlines the goals for the SKA-Mid Galactic Plane survey at 10-15 GHz to deliver the first uniform high-resolution view of ionized structures and feedback in the Milky Way.
Analysis of 3161 molecular clouds reveals oblate shapes aligned with the galactic plane, a flatter velocity dispersion-size relation than Larson's law, strong mass-size correlation, and that 12CO traces diffuse turbulent gas while C18O traces gravity-dominated regions.
Linear decomposition of Planck dust maps using PMO CO and EBHIS HI surveys attributes 20-40% of dust to CO gas, negligible amounts to broad warm HI, and significant fractions to narrow cold HI and CO-dark molecular gas at boundaries.
Broad HCO+ absorption traces diffuse CO-dark H2 with f_mol=0.09, f_CNM=0.38, and CO abundance ≲10^{-5} relative to H2, undetected in CO emission or absorption below few×10^{19} cm^{-2}.
Catalog of 1,573 molecular clouds with robust distances from 150 to 3000 pc determined by matching CO intensity maps to dust extinction maps, 90% measured for the first time with ~20% statistical and ~10% systematic uncertainties.
Observational study of MBM12 shows CO-to-H2 conversion factor near galactic average with density-dependent variations, high virial parameters decreasing at small scales, broken power-law mass-size relations indicating external pressure, and magnetic field orientation transition at N(H2) = 4.5e21 cm-
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Wolf-Rayet star clusters show a marginal spatial correlation with unidentified GeV gamma-ray sources, with 11 new cluster associations and 4 isolated WR stars identified as potential emitters from wind termination shocks.
New CO observations of low-mass late-type galaxies show the molecular gas-star formation relation remains linear, with shorter depletion times and a shift toward molecular-dominated gas at higher stellar masses.
Spectra of the western eROSITA bubbles reveal two uniform components at 0.60 keV and 0.21 keV with sub-solar abundances, plus a geometrical model constraining horizontal size to ~6 kpc but leaving vertical extent uncertain.
Simulations indicate HI absorption in FRB spectra is detectable when scintillation decorrelation bandwidth differs markedly from absorption width, with ≳1000 stacked bursts needed at current sensitivities.
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