activity
20112024
most citedThe Simons Observatory: Science goals and forecasts

1.5k citations · 4.2k across the 40 of their papers we have counts for

collaborators

41 papers

astro-ph.EP2024★ 9 cited

Three Warm Jupiters orbiting TOI-6628, TOI-3837, TOI-5027 and one sub-Saturn orbiting TOI-2328

Marcelo Tala Pinto, Andrés Jordán, Lorena Acuña +35

We report the discovery and characterization of three new transiting giant planets orbiting TOI-6628, TOI-3837 and TOI-5027, and one new warm sub-Saturn orbiting TOI-2328, whose tr…

astro-ph.EP2024

Mass determination of two Jupiter-sized planets orbiting slightly evolved stars: TOI-2420 b and TOI-2485 b

Ilaria Carleo, Oscar Barrágan, Carina M. Persson +67

Hot and warm Jupiters might have undergone the same formation and evolution path, but the two populations exhibit different distributions of orbital parameters, challenging our und…

astro-ph.EP2024★ 14 cited

Three Warm Jupiters around Solar-analog stars detected with TESS

Jan Eberhardt, Melissa J. Hobson, Thomas Henning +32

We report the discovery and characterization of three giant exoplanets orbiting solar-analog stars, detected by the \tess space mission and confirmed through ground-based photometr…

astro-ph.EP2024

A long-period transiting substellar companion in the super-Jupiters to brown dwarfs mass regime and a prototypical warm-Jupiter detected by TESS

Matias I. Jones, Yared Reinarz, Rafael Brahm +48

We report on the confirmation and follow-up characterization of two long-period transiting substellar companions on low-eccentricity orbits around TIC 4672985 and TOI-2529, whose t…

astro-ph.EP2023

TOI-199 b: A well-characterized 100-day transiting warm giant planet with TTVs seen from Antarctica

Melissa J. Hobson, Trifon Trifonov, Thomas Henning +49

We present the spectroscopic confirmation and precise mass measurement of the warm giant planet TOI-199 b. This planet was first identified in TESS photometry and confirmed using g…

astro-ph.EP2023★ 24 cited

Three long period transiting giant planets from TESS

Rafael Brahm, Solène Ulmer-Moll, Melissa J. Hobson +52

We report the discovery and orbital characterization of three new transiting warm giant planets. These systems were initially identified as presenting single transit events in the…

astro-ph.EP2023★ 33 cited

TOI-2525 b and c: A pair of massive warm giant planets with a strong transit timing variations revealed by TESS

Trifon Trifonov, Rafael Brahm, Andres Jordan +44

TOI-2525 is a K-type star with an estimated mass of M = 0.849 M and radius of R = 0.785 R observed by the TESS mission in 22…

astro-ph.EP2023★ 15 cited

A 2:1 Mean-Motion Resonance Super-Jovian pair revealed by TESS, FEROS, and HARPS

Vladimir Bozhilov, Desislava Antonova, Melissa J. Hobson +24

We report the discovery of a super-Jovian 2:1 mean-motion resonance (MMR) pair around the G-type star TIC 279401253, whose dynamical architecture is a prospective benchmark for pla…

astro-ph.EP2022★ 28 cited

TESS spots a mini-neptune interior to a hot saturn in the TOI-2000 system

Lizhou Sha, Andrew M. Vanderburg, Chelsea X. Huang +52

Hot jupiters (P < 10 d, M > 60 ) are almost always found alone around their stars, but four out of hundreds known have inner companion planets. These rare compan…

astro-ph.EP2022★ 29 cited

Two long-period transiting exoplanets on eccentric orbits: NGTS-20 b (TOI-5152 b) and TOI-5153 b

S. Ulmer-Moll, M. Lendl, S. Gill +50

Long-period transiting planets provide the opportunity to better understand the formation and evolution of planetary systems. Their atmospheric properties remain largely unaltered…

astro-ph.EP2021★ 34 cited

A pair of warm giant planets near the 2:1 mean motion resonance around the K-dwarf star TOI-2202

Trifon Trifonov, Rafael Brahm, Nestor Espinoza +37

TOI-2202 b is a transiting warm Jovian-mass planet with an orbital period of P=11.91 days identified from the Full Frame Images data of five different sectors of the TESS mission.…

astro-ph.EP2021★ 47 cited

A transiting warm giant planet around the young active star TOI-201

Melissa J. Hobson, Rafael Brahm, Andres Jordán +44

We present the confirmation of the eccentric warm giant planet TOI-201 b, first identified as a candidate in \textit{TESS} photometry (Sectors 1-8, 10-13, and 27-28) and confirmed…

astro-ph.EP2020★ 37 cited

A Highly Eccentric Warm Jupiter Orbiting TIC 237913194

Martin Schlecker, Diana Kossakowski, Rafael Brahm +28

The orbital parameters of warm Jupiters serve as a record of their formation history, providing constraints on formation scenarios for giant planets on close and intermediate orbit…

astro-ph.EP2020★ 14 cited

TOI-954 b and K2-329 b: Short-Period Saturn-Mass Planets that Test whether Irradiation Leads to Inflation

Lizhou Sha, Chelsea X. Huang, Avi Shporer +70

We report the discovery of two short-period Saturn-mass planets, one transiting the G subgiant TOI-954 (TIC 44792534, , ) observed in TESS sectors 4 and 5…

astro-ph.EP2020★ 44 cited

TOI-481 b & TOI-892 b: Two long period hot Jupiters from the Transiting Exoplanet Survey Satellite

Rafael Brahm, Louise D. Nielsen, Robert A. Wittenmyer +75

We present the discovery of two new 10-day period giant planets from the Transiting Exoplanet Survey Satellite () mission, whose masses were precisely determined using a wide…

astro-ph.EP2020★ 8 cited

K2-280b -- a low density warm sub-Saturn around a mildly evolved star

Grzegorz Nowak, Enric Palle, Davide Gandolfi +57

We present an independent discovery and detailed characterisation of K2-280b, a transiting low density warm sub-Saturn in a 19.9-day moderately eccentric orbit (e = 0.35_{-0.04}^{+…

astro-ph.CO2020★ 271 cited

The Atacama Cosmology Telescope: A Measurement of the Cosmic Microwave Background Power Spectra at 98 and 150 GHz

Steve K. Choi, Matthew Hasselfield, Shuay-Pwu Patty Ho +136

We present the temperature and polarization angular power spectra of the CMB measured by the Atacama Cosmology Telescope (ACT) from 5400 deg of the 2013-2016 survey, which cove…

astro-ph.CO2020★ 629 cited

The Atacama Cosmology Telescope: DR4 Maps and Cosmological Parameters

Simone Aiola, Erminia Calabrese, Loïc Maurin +138

We present new arcminute-resolution maps of the Cosmic Microwave Background temperature and polarization anisotropy from the Atacama Cosmology Telescope, using data taken from 2013…

astro-ph.EP2020★ 47 cited

NGTS-11 b / TOI-1847 b: A transiting warm Saturn recovered from a TESS single-transit event

Samuel Gill, Peter J. Wheatley, Benjamin F. Cooke +37

We report the discovery of NGTS-11 b (=TOI-1847 b), a transiting Saturn in a 35.46-day orbit around a mid K-type star (Teff=5050 K). We initially identified the system from a singl…

astro-ph.IM2020★ 4 cited

Classifying CMB time-ordered data through deep neural networks

Felipe Rojas, Loïc Maurin, Rolando Dünner +1

The Cosmic Microwave Background (CMB) has been measured over a wide range of multipoles. Experiments with arc-minute resolution like the Atacama Cosmology Telescope (ACT) have cont…

astro-ph.EP2019★ 56 cited

TOI-677 b: A Warm Jupiter (P=11.2d) on an eccentric orbit transiting a late F-type star

Andrés Jordán, Rafael Brahm, Néstor Espinoza +46

We report the discovery of TOI-677 b, first identified as a candidate in light curves obtained within Sectors 9 and 10 of the Transiting Exoplanet Survey Satellite (TESS) mission a…

astro-ph.IM2019★ 79 cited

The Simons Observatory: Astro2020 Decadal Project Whitepaper

The Simons Observatory Collaboration, Maximilian H. Abitbol, Shunsuke Adachi +280

The Simons Observatory (SO) is a ground-based cosmic microwave background (CMB) experiment sited on Cerro Toco in the Atacama Desert in Chile that promises to provide breakthrough…

astro-ph.EP2019★ 28 cited

TOI-150b and TOI-163b: two transiting hot Jupiters, one eccentric and one inflated, revealed by TESS near and at the edge of the JWST CVZ

Diana Kossakowski, Néstor Espinoza, Rafael Brahm +51

We present the discovery of TYC9191-519-1b (TOI-150b, TIC 271893367) and HD271181b (TOI-163b, TIC 179317684), two hot Jupiters initially detected using 30-minute cadence Transiting…

astro-ph.EP2019★ 66 cited

HD 213885b: A transiting 1-day-period super-Earth with an Earth-like composition around a bright () star unveiled by TESS

Néstor Espinoza, Rafael Brahm, Thomas Henning +60

We report the discovery of the 1.008-day, ultra-short period (USP) super-Earth HD 213885b (TOI-141b) orbiting the bright () star HD 213885 (TOI-141, TIC 403224672), detected…