Pith. sign in

REVIEW 5 minor 45 references

SPECULOOS: five years hunting terrestrial planets around ultra-cool dwarfs

T0 review · 0 major / 5 minor · reviewed 2026-08-07 · deepseek-v4-flash

Challenge this review Re-run · record.json Download PDF Read on arXiv ↗

Pith's one-line read After five years, SPECULOOS is 23 percent done with its core survey.

desk verdict A working survey's honest status report, whose under-three-year completion forecast is softer than it looks without a detection-completeness analysis. read the letter →

arxiv 2506.08814 v1 pith:IKVPUA5K submitted 2025-06-10 astro-ph.IM astro-ph.EP

Sebastián Zúñiga-Fernández (1) , Michael Gillon (1) , SPECULOOS consortium ((1) Astrobiology Research Unit , Université de Liège , Liège , Belgium) This is my paper
classification astro-ph.IMastro-ph.EP
keywords SPECULOOSultracooldwarfsterrestrialexoplanetstransitphotometryrobotictelescopesTRAPPIST-1JWSTatmosphericcharacterizationlow-massstars
verification ladder T0 review T1 audit T2 compute T3 formal

The pith

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The reading

The SPECULOOS project is a network of small robotic telescopes built to find temperate, Earth-sized planets transiting the nearest ultracool dwarfs, and this paper argues that, after five years, the concept is working. The existence of TRAPPIST-1's seven planets is taken as proof that the instrumental approach works, and the network reports that it has started roughly 17 percent of its whole target list, completed about 23 percent of its highest-priority Program 1 targets, and found planets including SPECULOOS-3b and SPECULOOS-2c. Because these planets orbit small, cool, near-infrared-bright stars, they are among the rare worlds that JWST and future giant telescopes can study in detail, so the survey's output directly feeds atmospheric characterization. The paper concludes that Program 1 should be finished in less than three years.

What carries the argument

The central mechanism is the SPECULOOS network itself: identical robotic Ritchey-Chretien 1-meter telescopes with 12x12 arcmin fields and near-infrared-optimized CCDs at three sites (four telescopes at Paranal, one at Teide, and SAINT-EX at San Pedro Martir), scheduling via SPOCK, automated reduction via the SPECULOOS pipeline and prose, and daily visual inspection through the PORTAL web interface. Each target is monitored continuously to reach up to 80% phase coverage for temperate and habitable-zone planets, amounting to 100 to 200 hours of observation per target. The single-transit detection of SPECULOOS-3b through PORTAL shows the detection chain that carries the survey: continuous robotic monitoring, rapid data reduction, and human review of candidate transits.

What would settle it

An injection-recovery experiment on the actual SPECULOOS light curves would settle it: if simulated Earth-sized transits at the expected depth, roughly 0.5% to 1%, are inserted into the real photometry and most are missed, the stated completion timeline and yield forecast are optimistic. A simpler observational check is the three-year forecast itself: if Program 1 is not substantially completed by the predicted date, the sensitivity assumption under the survey's real weather losses and systematics did not hold.

Watch

Extended reading notes

Core claim

The paper's central claim is that a distributed network of identical 1-meter robotic telescopes monitoring a carefully selected sample of the nearest ultracool dwarfs can detect transiting terrestrial planets in temperate orbits and deliver the best targets for JWST atmospheric studies. That claim is anchored by the TRAPPIST-1 system, whose seven planets the authors describe as fully demonstrating the instrumental concept and scientific potential of SPECULOOS, and by the newer discoveries SPECULOOS-3b and SPECULOOS-2c. The paper also reports current survey progress: about 17 percent of the target list has been observed, about 40 percent of those have more than 100 hours of data, and about 23 percent of the Program 1 targets, the ones best suited for JWST transmission spectroscopy, are complete. From this pace it forecasts completing Program 1 in less than three years.

Load-bearing premise

The paper assumes that watching each target for 100 to 200 hours with up to 80% phase coverage is enough to catch a temperate Earth-sized planet transiting an ultracool dwarf, but it does not include a test of how many simulated transits would actually be recovered from the real light curves.

Editorial extensions

If this is right

  • If the survey keeps its current pace, the most time-intensive Program 1 target list will be complete by roughly 2028, giving JWST a larger set of temperate rocky targets.
  • Every newly discovered terrestrial planet around an ultracool dwarf adds a target where JWST transmission or emission spectroscopy can probe the atmosphere, because planet-to-star contrast is much larger than for Sun-like hosts.
  • The TESS synergy speeds the survey: high-signal-to-noise TESS light curves of the brightest targets are being analyzed alongside SPECULOOS data, so follow-up can validate and characterize candidates faster.
  • The network's annex programs already validate TESS candidates such as TOI-715b and the LP 890-9 system, meaning SPECULOOS contributes to the broader M-dwarf planet census even before its core survey is done.

Reading between the lines

Editorial extensions of the paper, not claims the author makes directly.

  • A straightforward testable extension is to run an injection-recovery analysis on the accumulated SPECULOOS light curves; the paper's completion forecast stands or falls on the actual detection completeness, which is not quantified here.
  • If the survey continues to find planets at the rate implied by SPECULOOS-3b and SPECULOOS-2c, the occurrence rate of temperate rocky planets around ultracool dwarfs could be pinned down from the full 40-parsec sample, something Program 3 explicitly targets.
  • The SPIRIT near-infrared camera, by reducing precipitable-water-vapour systematics for the coolest targets, may make the survey more sensitive to planets around L-type dwarfs and brown dwarfs, a regime where no transiting planets have been found yet.
  • Satellite-trail statistics gathered from the SPECULOOS archive could quantify the growing impact of low-Earth-orbit constellations on 1-meter-class ground-based surveys, which matters for planning future exoplanet photometry.
Share X Bluesky LinkedIn Reddit HN

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, and a circularity audit.

Referee Report

0 major / 5 minor

Summary. The paper is a status report of the SPECULOOS ground-based transit survey after five years of operation. It describes the network of robotic telescopes (SPECULOOS-South, SPECULOOS-North, and SAINT-EX), the observing strategy and scheduling, data reduction pipelines, and recent technical developments (SPIRIT infrared camera, Astra observatory software, wind-speed calibration, and LEO satellite trace detection). It also reports survey progress statistics, including that roughly 17% of the target list has been observed and about 23% of Program 1 targets have been completed, and it forecasts completion of Program 1 in less than three years. The paper highlights the discoveries of SPECULOOS-3b and SPECULOOS-2c (LP 890-9c) and lists contributions to TESS follow-up and other programs.

Significance. The paper is a useful and timely reference for the exoplanet community, consolidating the operational status of a unique survey dedicated to terrestrial planets around ultracool dwarfs. The reported planet detections are traceable to peer-reviewed publications, and the operational descriptions are internally consistent. The manuscript also documents open-source software (SPOCK, prose, Astra) and provides enough detail for others to assess the survey's current capabilities. The main scientific value is in the status update and the identification of JWST-accessible targets; the survey's forecast and completeness statistics are of secondary importance and are not central to the paper's primary claims.

minor comments (5)
  1. [Section 3] The final sentence of Section 3, "resulting in monitoring duration with our SPECULOOS telescope network of 100 to 200 h, respectively," is ambiguous because the preceding list names three programs but only two duration values are given; please specify which program corresponds to 100 h and which to 200 h.
  2. [Section 6] In the first paragraph of Section 6, the phrase "for ∼ 40% of them" is unclear: it should state explicitly whether "them" refers to the 17% of targets already started or to the full target list, so that the reported statistics are reproducible.
  3. [Section 6] The statement that observations have been "completed" for ~23% of Program 1 targets would benefit from an explicit operational definition tied to the monitoring duration and phase coverage described in Section 3, together with a caveat that this definition does not include a detection-completeness or injection-recovery analysis; the forecast of finishing Program 1 in less than three years should be presented as an extrapolation subject to that definition.
  4. [Section 1] In the first paragraph, "Their Jupiter-sized results in much deeper transit signals" contains a typo; it should read "Their Jupiter-sized hosts result in much deeper transit signals."
  5. [Section 4] In the description of the PORTAL detection of SPECULOOS-3b, "SPECULOOS-3b planet14" should be typeset as "SPECULOOS-3b planet [14]" for clarity.

Circularity Check

0 steps flagged · score 0.0 of 10

The paper is a descriptive status review with no derivation chain, so there is no circularity to flag.

full rationale

This manuscript is a project status report for the SPECULOOS network, not a derivation of a new result. It describes facilities, observing strategy, pipelines, and recent discoveries, and it reports completion statistics such as "SPECULOOS has started observation for ~17% objects of our target list" and "For ~23% of the program 1 targets the observations have been completed." These are empirical bookkeeping statements about the survey, not predictions obtained from fitted parameters, and no quantity is renamed as a prediction. The central scientific evidence cited, the TRAPPIST-1 system and SPECULOOS-3b, consists of externally published detections with their own follow-up campaigns; the paper's statement that the TRAPPIST-1 system "fully demonstrates the instrumental concept" is an interpretation of an independent published discovery, not a self-referential derivation. The paper does rely on its own earlier papers for technical details of the pipeline and target selection, but those citations are normal project references and are not load-bearing in the sense of a circular argument: they describe hardware and software, and the survey statistics are internally reported rather than derived from them. The identified weakness that 100-200 hours of monitoring may not guarantee detection of temperate Earth-sized planets is a completeness or sensitivity concern, not a circularity: the paper never claims to have computed a detection-completeness curve, and the absence of such an analysis does not make any stated result equivalent to its inputs by construction. No self-definition, fitted-input-as-prediction, uniqueness-import-from-authors, ansatz-smuggling, or renamed-known-result pattern is present. Accordingly, the circularity score is 0.

Assumptions & free parameters 1 free parameters · 4 assumptions · 0 invented entities

The central claim is a status report, so the ledger is mostly survey-design assumptions inherited from earlier papers. The main load-bearing premise is that 100-200 hours of monitoring per target gives sufficient sensitivity to detect temperate Earth-sized planets, a claim the current paper does not demonstrate with completeness simulations. The wind-speed thresholds are fitted calibration values but are not central to the scientific claim.

free parameters (1)
  • Wind speed safety thresholds per telescope = Io 57 km/h, Europa 45 km/h, Ganymede 37 km/h, Callisto 43 km/h
    Derived by RANSAC linear regression against ESO/Io weather station data in Section 5.3; uncertainties are not reported.
assumptions (4)
  • domain assumption A transit depth of 0.5-1% for an Earth-sized planet around a UCD is detectable from the ground at the achieved ~1.5 mmag photometric precision.
    Invoked in Section 1 and Section 4 to justify the survey concept; no injection-recovery test is shown in this paper.
  • domain assumption 100-200 hours of monitoring per target, with up to 80% phase coverage, is sufficient to detect temperate Earth-sized planets around UCDs.
    Stated in Section 3 as the observing strategy; the completion forecast in Section 6 depends on it, but detection completeness is not quantified here.
  • domain assumption Wind speed at the VLT platform is a transferable reference for SPECULOOS telescopes at Paranal.
    Used in Section 5.3 to derive safety thresholds; authors note the geography may differ, but the calibration still uses the VLT station as primary reference.
  • domain assumption The SPECULOOS, prose, and PRINCE pipelines reliably produce mmag-level differential photometry.
    Assumed throughout Section 4; based on earlier team papers (Murray et al. 2020, Garcia et al. 2022), not re-validated here.

how reviews work

0 comments
Cite this review

Pith. "Pith review of SPECULOOS: five years hunting terrestrial planets around ultra-cool dwarfs." pith.science (2026). https://pith.science/paper/IKVPUA5K

@misc{pith2026250608814,
  author       = {Pith},
  title        = {Pith review of: SPECULOOS: five years hunting terrestrial planets around ultra-cool dwarfs},
  year         = {2026},
  howpublished = {\url{https://pith.science/paper/IKVPUA5K}},
  note         = {Machine review of arXiv:2506.08814}
}
read the original abstract

The SPECULOOS (Search for habitable Planets EClipsing ULtra-cOOl Stars) project aims to detect temperate terrestrial planets transiting nearby ultracool dwarfs, including late M-dwarf stars and brown dwarfs, which are well-suited for atmospheric characterization using the James Webb Space Telescope (JWST) and upcoming giant telescopes like the European Extremely Large Telescope (ELT). Led by the University of Li\`ege, SPECULOOS is conducted in partnership with the University of Cambridge, the University of Birmingham, the Massachusetts Institute of Technology, the University of Bern, and ETH Zurich. The project operates a network of robotic telescopes at two main observatories: SPECULOOS-South in Chile, with four telescopes, and SPECULOOS-North in Tenerife, currently with one telescope (soon to be two). This network is complemented by the SAINT-EX telescope located in San Pedro M\'artir, Mexico. In this paper, we review the status of our facilities after five years of operations, the current challenges and development plans, and our latest scientific results.

Figures

Figures reproduced from arXiv: 2506.08814 by the authors.

Figure 1
Figure 1. PORTAL’s web interface. Observation view for a particular night for SPECULOOS-3 target observed [PITH_FULL_IMAGE:figures/full_fig_p005_1.png] view at source ↗
Figure 2
Figure 2. (a): Wind speed measurements from VLT weather station and our Boltwood weather stations. (b): [PITH_FULL_IMAGE:figures/full_fig_p006_2.png] view at source ↗
Figure 3
Figure 3. Linear fit using ESO weather station as a reference for Io and Ganymede weather station data. We [PITH_FULL_IMAGE:figures/full_fig_p007_3.png] view at source ↗
Figures from the paper (2 more)
Figure 4
Figure 4. Figure 4: Example of different kind of sources detected by [PITH_FULL_IMAGE:figures/full_fig_p008_4.png]
Figure 5
Figure 5. Figure 5: (a): Stack of all images from different nights with satellites traces from one of the SNO fields. (b): [PITH_FULL_IMAGE:figures/full_fig_p008_5.png]

Discussion (0). Sign in to comment.

Reference graph

Works this paper leans on

45 extracted references · 45 canonical work pages

  1. [1]

    The James Webb Space Telescope,

    Gardner, J., Mather, J., Clampin, M., Doyon, R., Greenhouse, M., Hammel, H., Hutchings, J., Jakobsen, P., Lilly, S., Long, K., Lunine, J., Mccaughrean, M., Mountain, M., Nella, J., Rieke, G., Rieke, M., Rix, H.-W., Smith, E., Sonneborn, G., Stiavelli, M., Stockman, H. S., Windhorst, R., and Wright, G., “The James Webb Space Telescope,” Space Science Revie...

    work page 2006

  2. [2]

    Characterizing transiting planet atmospheres through 2025,

    Cowan, N. B., Greene, T., Angerhausen, D., Batalha, N. E., Clampin, M., Col´ on, K., Crossfield, I. J. M., Fortney, J. J., Gaudi, B. S., Harrington, J., Iro, N., Lillie, C. F., Linsky, J. L., Lopez-Morales, M., Mandell, A. M., Stevenson, K. B., and on behalf of ExoPAG SAG-10, “Characterizing transiting planet atmospheres through 2025,” Publications of the...

    work page 2025

  3. [3]

    Characterizing transiting exoplanet atmospheres with jwst,

    Greene, T. P., Line, M. R., Montero, C., Fortney, J. J., Lustig-Yaeger, J., and Luther, K., “Characterizing transiting exoplanet atmospheres with jwst,” The Astrophysical Journal 817, 17 (jan 2016)

    work page 2016

  4. [4]

    Toward a List of Molecules as Potential Biosignature Gases for the Search for Life on Exoplanets and Applications to Terrestrial Biochemistry,

    Seager, S., Bains, W., and Petkowski, J. J., “Toward a List of Molecules as Potential Biosignature Gases for the Search for Life on Exoplanets and Applications to Terrestrial Biochemistry,” Astrobiology 16, 465–485 (June 2016)

    work page 2016

  5. [5]

    SPECULOOS Exoplanet Search and Its Prototype on TRAPPIST,

    Burdanov, A., Delrez, L., Gillon, M., and Jehin, E., “SPECULOOS Exoplanet Search and Its Prototype on TRAPPIST,” in [ Handbook of Exoplanets ], Deeg, H. J. and Belmonte, J. A., eds., 1007–1023, Springer International Publishing, Cham (2018)

    work page 2018

  6. [6]

    Design Considerations for a Ground-Based Transit Search for Habitable Planets Orbiting M Dwarfs,

    Nutzman, P. and Charbonneau, D., “Design Considerations for a Ground-Based Transit Search for Habitable Planets Orbiting M Dwarfs,” PASP 120, 317 (3 2008)

    work page 2008

  7. [7]

    ExTrA: Exoplanets in transit and their atmospheres,

    Bonfils, X., Almenara, J. M., Jocou, L., Wunsche, A., Kern, P., Delboulb´ e, A., Delfosse, X., Feautrier, P., Forveille, T., Gluck, L., Lafrasse, S., Magnard, Y., Maurel, D., Moulin, T., Murgas, F., Rabou, P., Rochat, S., Roux, A., and Stadler, E., “ExTrA: Exoplanets in transit and their atmospheres,” in [ Techniques and Instrumentation for Detection of E...

    work page 2015

  8. [8]

    The Perkins INfrared Exosatellite Survey (PINES) I. Survey Overview, Reduction Pipeline, and Early Results,

    Tamburo, P., Muirhead, P. S., McCarthy, A. M., Hart, M., Gracia, D., Vos, J. M., Bardalez Gagliuffi, D. C., Faherty, J., Theissen, C., Agol, E., Skinner, J. N., and Sagear, S., “The Perkins INfrared Exosatellite Survey (PINES) I. Survey Overview, Reduction Pipeline, and Early Results,” The Astronomical Journal 163, 253 (June 2022). 10

    work page 2022

Show all 45 references
  1. [9]

    EDEN: Sensitivity Analysis and Transiting Planet Detection Limits for Nearby Late Red Dwarfs,

    Gibbs, A., Bixel, A., Rackham, B. V., Apai, D., Schlecker, M., Espinoza, N., Mancini, L., Chen, W.-P., Henning, T., Gabor, P., Boyle, R., Perez Chavez, J., Mousseau, A., Dietrich, J., Jay Socia, Q., Ip, W., Ngeow, C.-C., Tsai, A.-L., Bhandare, A., Marian, V., Baehr, H., Brown,...

    2020

  2. [10]

    EDEN Survey: Small Transiting Planet Detection Limits and Constraints on the Occurrence Rates of Planets around Late-M Dwarfs within 15 pc,

    Dietrich, J., Apai, D., Schlecker, M., Hardegree-Ullman, K. K., Rackham, B. V., Kurtovic, N., Molaverdikhani, K., Gabor, P., Henning, T., Chen, W.-P., Mancini, L., Bixel, A., Gibbs, A., Boyle, R. P., Brown-Sevilla, S., Burn, R., Delage, T. N., Flores-Rivera, L., Franceschi, R....

    2023

  3. [11]

    Seven temperate terrestrial planets around the nearby ultracool dwarf star TRAPPIST-1,

    Gillon, M., Triaud, A. H. M. J., Demory, B.-O., Jehin, E., Agol, E., Deck, K. M., Lederer, S. M., de Wit, J., Burdanov, A., Ingalls, J. G., Bolmont, E., Leconte, J., Raymond, S. N., Selsis, F., Turbet, M., Barkaoui, K., Burgasser, A., Burleigh, M. R., Carey, S. J., Chaushev, A...

    2017

  4. [12]

    Planet-Planet Occultations in TRAPPIST-1 and Other Exo- planet Systems,

    Luger, R., Lustig-Yaeger, J., and Agol, E., “Planet-Planet Occultations in TRAPPIST-1 and Other Exo- planet Systems,” The Astronomical Journal 851, 94 (Dec. 2017)

    2017

  5. [13]

    Refining the Transit- timing and Photometric Analysis of TRAPPIST-1: Masses, Radii, Densities, Dynamics, and Ephemerides,

    Agol, E., Dorn, C., Grimm, S. L., Turbet, M., Ducrot, E., Delrez, L., Gillon, M., Demory, B.-O., Burdanov, A., Barkaoui, K., Benkhaldoun, Z., Bolmont, E., Burgasser, A., Carey, S., de Wit, J., Fabrycky, D., Foreman-Mackey, D., Haldemann, J., Hernandez, D. M., Ingalls, J., Jehi...

    2021

  6. [14]

    Detection of an earth-sized exoplanet orbiting the nearby ultracool dwarf star speculoos-3,

    Gillon, M., Pedersen, P. P., Rackham, B. V., Dransfield, G., Ducrot, E., Barkaoui, K., Burdanov, A. Y., Schroffenegger, U., G´ omez Maqueo Chew, Y., Lederer, S. M., Alonso, R., Burgasser, A. J., Howell, S. B., Narita, N., de Wit, J., Demory, B.-O., Queloz, D., Triaud, A. H. M....

    2024

  7. [15]

    TRAPPIST: a robotic telescope dedicated to the study of planetary systems,

    Gillon, M., Jehin, E., Magain, P., Chantry, V., Hutsem´ ekers, D., Manfroid, J., Queloz, D., and Udry, S., “TRAPPIST: a robotic telescope dedicated to the study of planetary systems,” in [ European Physical Journal Web of Conferences ], European Physical Journal Web of Confere...

    2011

  8. [16]

    TRAPPIST: TRAnsiting Planets and PlanetesImals Small Telescope,

    Jehin, E., Gillon, M., Queloz, D., Magain, P., Manfroid, J., Chantry, V., Lendl, M., Hutsem´ ekers, D., and Udry, S., “TRAPPIST: TRAnsiting Planets and PlanetesImals Small Telescope,” The Messenger 145, 2–6 (Sept. 2011)

    2011

  9. [17]

    Searching for red worlds,

    Gillon, M., “Searching for red worlds,” Nature Astronomy 2, 344 (4 2018)

    2018

  10. [18]

    SPECULOOS: a network of robotic telescopes to hunt for terrestrial planets around the nearest ultracool dwarfs,

    Delrez, L., Gillon, M., Queloz, D., Demory, B.-O., Almleaky, Y., de Wit, J., Jehin, E., Triaud, A. H. M. J., Barkaoui, K., Burdanov, A., Burgasser, A. J., Ducrot, E., McCormac, J., Murray, C., Silva Fernandes, C., Sohy, S., Thompson, S. J., Van Grootel, V., Alonso, R., Benkhal...

    2018

  11. [19]

    Photometry and Performance of SPECULOOS-South,

    Murray, C. A., Delrez, L., Pedersen, P. P., Queloz, D., Gillon, M., Burdanov, A., Ducrot, E., Garcia, L. J., Lienhard, F., Demory, B. O., Jehin, E., McCormac, J., Sebastian, D., Sohy, S., Thompson, S. J., Triaud, A. H. M. J., Grootel, V. V., G¨ unther, M. N., and Huang, C. X.,...

    2020

  12. [20]

    SPECULOOS: Ultracool dwarf transit survey. Target list and strategy,

    Sebastian, D., Gillon, M., Ducrot, E., Pozuelos, F. J., Garcia, L. J., G¨ unther, M. N., Delrez, L., Queloz, D., Demory, B. O., Triaud, A. H. M. J., Burgasser, A., de Wit, J., Burdanov, A., Dransfield, G., Jehin, E., McCormac, J., Murray, C. A., Niraula, P., Pedersen, P. P., R...

    2021

  13. [21]

    Development of the SPECULOOS exoplanet search project,

    Sebastian, D., Pedersen, P., Murray, C., Ducrot, E., Garcia, L., Burdanov, A., Pozuelos, F., Delrez, L., Wells, R., Dransfield, G., Gillon, M., Demory, B.-O., Queloz, D., Triaud, A., De Witt, J., Jehin, E., G´ omez Maqueo Chew, Y., G¨ unther, M., Niraula, P., Rackham, B., Scha...

    2020

  14. [22]

    Speculoos northern observatory: Searching for red worlds in the northern skies,

    Burdanov, A. Y., de Wit, J., Gillon, M., Rebolo, R., Sebastian, D., Alonso, R., Sohy, S., Niraula, P., Garcia, L., Barkaoui, K., Chinchilla, P., Ducrot, E., Murray, C. A., Pedersen, P. P., Jehin, E., McCormac, J., and Z´ u˜ niga-Fern´ andez, S., “Speculoos northern observatory...

    2022

  15. [23]

    A super-earth and a sub-neptune orbiting the bright, quiet m3 dwarf toi-1266,

    Demory, B.-O., Pozuelos, F. J., G´ omez Maqueo Chew, Y., Sabin, L., Petrucci, R., Schroffenegger, U., Grimm, S. L., Sestovic, M., Gillon, M., McCormac, J., Barkaoui, K., Benz, W., Bieryla, A., Bouchy, F., Burdanov, A., Collins, K. A., de Wit, J., Dressing, C. D., Garcia, L. J....

    2020

  16. [24]

    SAINT-EX: Scientific Results and Observations from San Pedro M´ artir,

    G´ omez Maqueo Chew, Y., Demory, B. O., Sabin, L., Wells, R. D., Petrucci, R., Schroffenegger, U., G´ omez- Mu˜ noz, M. A., Schanche, N., and Saint-Ex Team, “SAINT-EX: Scientific Results and Observations from San Pedro M´ artir,” in [Revista Mexicana de Astronomia y Astrofisic...

    2023

  17. [25]

    Assessment of the potential of the new belgo-moroccan telescope trappist-north for high- precision exoplanet transit photometry,

    Barkaoui, K., Gillon, M., Benkhaldoun, Z., Emmanuel, J., Elhalkouj, T., Daassou, A., Burdanov, A., and Delrez, L., “Assessment of the potential of the new belgo-moroccan telescope trappist-north for high- precision exoplanet transit photometry,” Journal of Physics: Conference ...

    2017

  18. [26]

    PROSE: a PYTHON framework for modular astronomical images processing,

    Garcia, L. J., Timmermans, M., Pozuelos, F. J., Ducrot, E., Gillon, M., Delrez, L., Wells, R. D., and Jehin, E., “PROSE: a PYTHON framework for modular astronomical images processing,” Monthly Notices of the Royal Astronomical Society 509, 4817–4828 (Feb. 2022)

    2022

  19. [27]

    GPU-based framework for detecting small Solar system bodies in targeted exoplanet surveys,

    Burdanov, A. Y., Hasler, S. N., and de Wit, J., “GPU-based framework for detecting small Solar system bodies in targeted exoplanet surveys,” Monthly Notices of the Royal Astronomical Society 521, 4568–4578 (03 2023)

    2023

  20. [28]

    Infrared photometry with InGaAs detectors: First light with SPECULOOS,

    Pedersen, P., Queloz, D., Garcia, L., Schacke, Y., Delrez, L., Demory, B.-O., Ducrot, E., Dransfield, G., Gillon, M., Hooton, M., Jan´ o-Mu˜ noz, C., Jehin, E., Sebastian, D., Timmermans, M., Thompson, S., Triaud, A., De Witt, J., and Z´ u˜ niga-Fern´ andez, S., “Infrared phot...

    2024

  21. [29]

    Precise near-infrared photometry, accounting for precipitable water 12 vapour at SPECULOOS Southern Observatory,

    Pedersen, P. P., Murray, C. A., Queloz, D., Gillon, M., Demory, B. O., Triaud, A. H. M. J., de Wit, J., Delrez, L., Dransfield, G., Ducrot, E., Garcia, L. J., G´ omez-Maqueo-Chew, Y., G¨ unther, M. N., Jehin, E., McCormac, J., Niraula, P., Pozuelos, F. J., Rackham, B. V., Scha...

    2022

  22. [30]

    DONUTS: A Science Frame Autoguiding Algorithm with Sub-Pixel Precision, Capable of Guiding on Defocused Stars,

    McCormac, J., Pollacco, D., Skillen, I., Faedi, F., Todd, I., and Watson, C. A., “DONUTS: A Science Frame Autoguiding Algorithm with Sub-Pixel Precision, Capable of Guiding on Defocused Stars,” PASP 125, 548 (5 2013)

    2013

  23. [31]

    The Gaia mission,

    Gaia Collaboration, Prusti, T., de Bruijne, J. H. J., Brown, A. G. A., Vallenari, A., Babusiaux, C., Bailer- Jones, C. A. L., Bastian, U., Biermann, M., Evans, D. W., and et al., “The Gaia mission,” A&A 595, A1 (11 2016)

    2016

  24. [32]

    Gaia Data Release 2. Summary of the contents and survey properties,

    Collaboration, G., Brown, A. G. A., Vallenari, A., Prusti, T., de Bruijne, J. H. J., Babusiaux, C., Bailer- Jones, C. A. L., Biermann, M., Evans, D. W., Eyer, L., Jansen, F., Jordi, C., Klioner, S. A., Lammers, U., Lindegren, L., Luri, X., Mignard, F., Panem, C., Pourbaix, D.,...

    2018

  25. [33]

    Gaia Early Data Release 3. Summary of the contents and survey properties,

    Gaia Collaboration, Brown, A. G. A., Vallenari, A., Prusti, T., de Bruijne, J. H. J., Babusiaux, C., Bier- mann, M., Creevey, O. L., Evans, D. W., Eyer, L., Hutton, A., Jansen, F., Jordi, C., Klioner, S. A., Lammers, U., Lindegren, L., Luri, X., Mignard, F., Panem, C., Pourbai...

    2021

  26. [34]

    Random sample consensus: a paradigm for model fitting with applications to image analysis and automated cartography,

    Fischler, M. A. and Bolles, R. C., “Random sample consensus: a paradigm for model fitting with applications to image analysis and automated cartography,” Commun. ACM 24, 381–395 (jun 1981)

    1981

  27. [35]

    A large sub-Neptune transiting the thick-disk M4 v TOI-2406,

    Wells, R. D., Rackham, B. V., Schanche, N., Petrucci, R., G´ omez Maqueo Chew, Y., Demory, B. O., Burgasser, A. J., Burn, R., Pozuelos, F. J., G¨ unther, M. N., Sabin, L., Schroffenegger, U., G´ omez-Mu˜ noz, M. A., Stassun, K. G., Van Grootel, V., Howell, S. B., Sebastian, D....

    2021

  28. [36]

    TOI-2257 b: A highly eccentric long-period sub-Neptune transiting a nearby M dwarf,

    Schanche, N., Pozuelos, F. J., G¨ unther, M. N., Wells, R. D., Burgasser, A. J., Chinchilla, P., Delrez, L., Ducrot, E., Garcia, L. J., G´ omez Maqueo Chew, Y., Jofr´ e, E., Rackham, B. V., Sebastian, D., Stassun, K. G., Stern, D., Timmermans, M., Barkaoui, K., Belinski, A., B...

    2021 arXiv

  29. [37]

    A 1.55 R⊙ habitable-zone planet hosted by TOI-715, an M4 star near the ecliptic South Pole,

    Dransfield, G., Timmermans, M., Triaud, A. H. M. J., D´ evora-Pajares, M., Aganze, C., Barkaoui, K., Burgasser, A. J., Collins, K. A., Cointepas, M., Ducrot, E., G¨ unther, M. N., Howell, S. B., Murray, C. A., Niraula, P., Rackham, B. V., Sebastian, D., Stassun, K. G., Z´ u˜ n...

    2023

  30. [38]

    Unmasking the hidden NGTS-3Ab: A hot Jupiter in an unresolved binary system,

    G¨ unther, M., Queloz, D., Gillen, E., Delrez, L., Bouchy, F., McCormac, J., Smalley, B., Almleaky, Y., Armstrong, D., Bayliss, D., Burdanov, A., Burleigh, M., Cabrera, J., Casewell, S., Cooke, B., Csizmadia, S., Ducrot, E., Eigm¨ uller, P., Erikson, A., G¨ ansicke, B., Gibson...

    2018

  31. [39]

    NGTS-4b: A sub-Neptune transiting in the desert,

    West, R. G., Gillen, E., Bayliss, D., Burleigh, M. R., Delrez, L., G¨ unther, M. N., Hodgkin, S. T., Jackman, J. A., Jenkins, J. S., King, G., McCormac, J., Nielsen, L. D., Raynard, L., Smith, A. M., Soto, M., Turner, O., Wheatley, P. J., Almleaky, Y., Armstrong, D. J., Belard...

    2019

  32. [40]

    Discovery of Three New Transiting Hot Jupiters: W ASP-161 b, W ASP-163 b, and W ASP-170 b,

    Barkaoui, K., Burdanov, A., Hellier, C., Gillon, M., Smalley, B., Maxted, P. F. L., Lendl, M., Triaud, A. H. M. J., Anderson, D. R., McCormac, J., Jehin, E., Almleaky, Y., Armstrong, D. J., Benkhaldoun, Z., Bouchy, F., Brown, D. J. A., Cameron, A. C., Daassou, A., Delrez, L., ...

    2019

  33. [41]

    Wasp-190b: Tomographic discovery of a transiting hot jupiter,

    Temple, L. Y., Hellier, C., Almleaky, Y., Anderson, D. R., Bouchy, F., Brown, D. J. A., Burdanov, A., Cameron, A. C., Delrez, L., Gillon, M., Jehin, E., Lendl, M., Maxted, P. F. L., Murray, C., Nielsen, L. D., Pepe, F., Pollacco, D., Queloz, D., S´ egransan, D., Smalley, B., T...

    2019

  34. [42]

    Six transiting planets and a chain of Laplace resonances in TOI-178,

    Leleu, A., Alibert, Y., Hara, N. C., Hooton, M. J., Wilson, T. G., Robutel, P., Delisle, J. B., Laskar, J., Hoyer, S., Lovis, C., Bryant, E. M., Ducrot, E., Cabrera, J., Delrez, L., Acton, J. S., Adibekyan, V., Allart, R., Allende Prieto, C., Alonso, R., Alves, D., Anderson, D...

    2021

  35. [43]

    An extended low-density atmosphere around the jupiter-sized planet wasp-193 b,

    Barkaoui, K., Pozuelos, F. J., Hellier, C., Smalley, B., Nielsen, L. D., Niraula, P., Gillon, M., de Wit, J., M¨ uller, S., Dorn, C., Helled, R., Jehin, E., Demory, B.-O., Van Grootel, V., Soubkiou, A., Ghachoui, M., Anderson, D. R., Benkhaldoun, Z., Bouchy, F., Burdanov, A., ...

    2024

  36. [44]

    An M dwarf accompanied by a close-in giant orbiter with SPECULOOS,

    Triaud, A. H. M. J., Dransfield, G., Kagetani, T., Timmermans, M., Narita, N., Barkaoui, K., Hirano, T., Rackham, B. V., Mori, M., Baycroft, T., Benkhaldoun, Z., Burgasser, A. J., Caldwell, D. A., Collins, K. A., Davis, Y. T., Delrez, L., Demory, B.-O., Ducrot, E., Fukui, A., ...

    2023

  37. [45]

    Two temperate super-Earths transiting a nearby late-type M dwarf,

    Delrez, L., Murray, C. A., Pozuelos, F. J., Narita, N., Ducrot, E., Timmermans, M., Watanabe, N., Bur- gasser, A. J., Hirano, T., Rackham, B. V., Stassun, K. G., Van Grootel, V., Aganze, C., Cointepas, M., Howell, S., Kaltenegger, L., Niraula, P., Sebastian, D., Almenara, J. M...

    2022

Pith tools

Reviewed August 7, 2026 · model on record in the stance chip above.