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TOI-954 b and K2-329 b: Short-period Saturn-mass Planets that Test whether Irradiation Leads to Inflation
| Indexado |
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| DOI | 10.3847/1538-3881/ABD187 | ||||
| Año | 2021 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
Abstract
We report the discovery of two short-period Saturn-mass planets, one transiting the G subgiant TOI-954 (TIC 44792534, V = 10.343, T = 9.78) observed in TESS sectors 4 and 5 and one transiting the G dwarf K2-329 (EPIC 246193072, V = 12.70, K = 10.67) observed in K2 campaigns 12 and 19. We confirm and characterize these two planets with a variety of ground-based archival and follow-up observations, including photometry, reconnaissance spectroscopy, precise radial velocity, and high-resolution imaging. Combining all available data, we find that TOI-954 b has a radius of 0.852(-0.062)(+0.053) R-J and a mass of 0.174(-0.017)(+0.018) M-J and is in a 3.68 day orbit, while K2-329 b has a radius of 0.774(-0.024)(+0.026) R-J and a mass if 0.260(-0.022)(+0.020) M-J and is in a 12.46 day orbit. As TOI-954 b is 30 times more irradiated than K2-329 b but more or less the same size, these two planets provide an opportunity to test whether irradiation leads to inflation of Saturn-mass planets and contribute to future comparative studies that explore Saturn-mass planets at contrasting points in their lifetimes.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Sha, Lizhou | - |
MIT - Estados Unidos
MIT Kavli Institute for Astrophysics and Space Research - Estados Unidos Massachusetts Institute of Technology - Estados Unidos |
| 2 | Huang, Chelsea X. | Mujer |
MIT - Estados Unidos
MIT Kavli Institute for Astrophysics and Space Research - Estados Unidos Massachusetts Institute of Technology - Estados Unidos |
| 3 | Shporer, Avi | - |
MIT - Estados Unidos
MIT Kavli Institute for Astrophysics and Space Research - Estados Unidos Massachusetts Institute of Technology - Estados Unidos |
| 4 | Rodriguez, Joseph E. | Hombre |
Ctr Astrophys Harvard & Smithsonian - Estados Unidos
Harvard-Smithsonian Center for Astrophysics - Estados Unidos |
| 5 | Vanderburg, Andrew | Hombre |
Univ Texas Austin - Estados Unidos
The University of Texas at Austin - Estados Unidos |
| 6 | BRAHM-SCOTT, RAFAEL ANDRES | Hombre |
Universidad Adolfo Ibáñez - Chile
Instituto Milenio de Astrofísica - Chile Millennium Institute for Astrophysics - Chile |
| 7 | Hagelberg, J. | Mujer |
Univ Geneva - Suiza
Faculty of Science - Suiza |
| 8 | Matthews, Elisabeth | Mujer |
MIT - Estados Unidos
MIT Kavli Institute for Astrophysics and Space Research - Estados Unidos Massachusetts Institute of Technology - Estados Unidos |
| 9 | Ziegler, Carl | Hombre |
UNIV TORONTO - Canadá
Dunlap Institute for Astronomy & Astrophysics - Canadá |
| 10 | Livingston, J. H. | Hombre |
Univ Tokyo - Japón
The University of Tokyo - Japón |
| 11 | Stassun, Keivan | - |
Vanderbilt Univ - Estados Unidos
Vanderbilt University - Estados Unidos |
| 12 | Wright, Duncan | Hombre |
Univ Southern Queensland - Australia
University of Southern Queensland - Australia |
| 13 | Crane, J. D. | Hombre |
Observ Carnegie Inst Sci - Estados Unidos
Observatorio Las Campanas - Estados Unidos |
| 14 | Espinoza, Nestor | Hombre |
Space Telescope Sci Inst - Estados Unidos
Space Telescope Science Institute - Estados Unidos |
| 15 | Bouchy, Francois | Hombre |
Univ Geneva - Suiza
Faculty of Science - Suiza |
| 16 | Bakos, Gaspar | Hombre |
Princeton Univ - Estados Unidos
Konkoly Observ Budapest - Hungría Princeton University - Estados Unidos Konkoly Observatory - Hungría |
| 17 | Pearce, Logan | Hombre |
Ctr Astrophys Harvard & Smithsonian - Estados Unidos
MIT - Estados Unidos UNIV KANSAS - Estados Unidos Harvard-Smithsonian Center for Astrophysics - Estados Unidos MIT Kavli Institute for Astrophysics and Space Research - Estados Unidos University of Kansas - Estados Unidos Massachusetts Institute of Technology - Estados Unidos |
| 18 | Zhou, George | Hombre |
Observ Carnegie Inst Sci - Estados Unidos
Harvard-Smithsonian Center for Astrophysics - Estados Unidos |
| 19 | Bieryla, Allyson | Mujer |
Ctr Astrophys Harvard & Smithsonian - Estados Unidos
Harvard-Smithsonian Center for Astrophysics - Estados Unidos |
| 20 | Hartman, Joel D. | Hombre |
Princeton Univ - Estados Unidos
Princeton University - Estados Unidos |
| 21 | Wittenmyer, Rob | Hombre |
Univ Southern Queensland - Australia
University of Southern Queensland - Australia |
| 22 | D. Nielsen, Louise | Mujer |
Univ Geneva - Suiza
Faculty of Science - Suiza |
| 23 | Plavchan, Peter | Hombre |
George Mason Univ - Estados Unidos
George Mason University - Estados Unidos |
| 24 | Bayliss, Dan | Hombre |
Univ Warwick - Reino Unido
University of Warwick - Reino Unido |
| 25 | Sarkis, Paula | Mujer |
Max Planck Inst Astron - Alemania
Max Planck Institute for Astronomy - Alemania |
| 26 | Tan, T. -G. | - |
Perth Exoplanet Survey Telescope - Australia
|
| 27 | Cloutier, Ryan | Hombre |
Ctr Astrophys Harvard & Smithsonian - Estados Unidos
Harvard-Smithsonian Center for Astrophysics - Estados Unidos |
| 28 | Mancin, L. | Hombre |
Max Planck Inst Astron - Alemania
Univ Roma Tor Vergata - Italia INAF Astrophys Observ Turin - Italia Max Planck Institute for Astronomy - Alemania Università degli Studi di Roma "Tor Vergata" - Italia Istituto Nazionale Di Astrofisica, Rome - Italia |
| 29 | JORDAN-COLZANI, ANDRES CRISTOBAL | Hombre |
Universidad Adolfo Ibáñez - Chile
Instituto Milenio de Astrofísica - Chile Millennium Institute for Astrophysics - Chile |
| 30 | Wang, Sharon | Mujer |
Observ Carnegie Inst Sci - Estados Unidos
Observatorio Las Campanas - Estados Unidos |
| 31 | Henning, Thomas | Hombre |
Max Planck Inst Astron - Alemania
Max Planck Institute for Astronomy - Alemania |
| 32 | Narita, Norio | Hombre |
Univ Tokyo - Japón
JST - Japón Astrobiol Ctr - Japón Natl Astron Observ Japan - Japón Inst Astrofis Canarias - España The University of Tokyo - Japón Japan Science and Technology Agency - Japón Astrobiology Center - Japón National Institutes of Natural Sciences - National Astronomical Observatory of Japan - Japón Instituto Astrofisico de Canarias - España National Institutes of Natural Sciences - AstroBiology Center - Japón |
| 33 | Penev, Kaloyan | Hombre |
Univ Texas Dallas - Estados Unidos
The University of Texas at Dallas - Estados Unidos The University of Texas at Austin - Estados Unidos |
| 34 | Teske, J. | Mujer |
Observ Carnegie Inst Sci - Estados Unidos
Observatorio Las Campanas - Estados Unidos |
| 35 | Kane, Stephen R. | Hombre |
Univ Calif Riverside - Estados Unidos
University of California, Riverside - Estados Unidos |
| 36 | Mann, Andrew W. | Hombre |
UNIV N CAROLINA - Estados Unidos
The University of North Carolina at Chapel Hill - Estados Unidos College of Arts & Sciences - Estados Unidos |
| 37 | Addison, B. | Hombre |
Univ Southern Queensland - Australia
University of Southern Queensland - Australia |
| 38 | Tamura, Motohide | - |
Univ Tokyo - Japón
Astrobiol Ctr - Japón Natl Astron Observ Japan - Japón The University of Tokyo - Japón Astrobiology Center - Japón National Institutes of Natural Sciences - National Astronomical Observatory of Japan - Japón National Institutes of Natural Sciences - AstroBiology Center - Japón |
| 39 | Horner, Jonathan | Hombre |
Univ Southern Queensland - Australia
University of Southern Queensland - Australia |
| 40 | Barbieri, M. | Hombre |
Universidad de Atacama - Chile
|
| 41 | Burt, Jennifer A. | Mujer |
CALTECH - Estados Unidos
Jet Propulsion Laboratory - Estados Unidos |
| 42 | DIAZ-MUNOZ, MATIAS RODRIGO | Hombre |
Universidad de Chile - Chile
|
| 43 | Pearce, Logan | Hombre |
Ctr Astrophys Harvard & Smithsonian - Estados Unidos
MIT - Estados Unidos UNIV KANSAS - Estados Unidos Harvard-Smithsonian Center for Astrophysics - Estados Unidos MIT Kavli Institute for Astrophysics and Space Research - Estados Unidos University of Kansas - Estados Unidos Massachusetts Institute of Technology - Estados Unidos |
| 44 | Dragomir, D. | Mujer |
UNIV NEW MEXICO - Estados Unidos
The University of New Mexico - Estados Unidos |
| 45 | Drass, Holger | Hombre |
Pontificia Universidad Católica de Chile - Chile
|
| 46 | Feinstein, A. D. | Mujer |
UNIV CHICAGO - Estados Unidos
The University of Chicago - Estados Unidos |
| 47 | Zhang, Hui | - |
Nanjing Univ - China
|
| 48 | Hart, R. | Hombre |
Univ Southern Queensland - Australia
Princeton Univ - Estados Unidos University of Southern Queensland - Australia Princeton University - Estados Unidos |
| 49 | Kielkopf, J. | Hombre |
UNIV LOUISVILLE - Estados Unidos
University of Louisville - Estados Unidos |
| 50 | Jensen, Eric L. N. | Hombre |
Swarthmore Coll - Estados Unidos
Swarthmore College - Estados Unidos |
| 51 | Montet, Benjamin T. | Hombre |
Univ New South Wales - Australia
UNSW Sydney - Australia |
| 52 | Ottoni, G. | Hombre |
Univ Geneva - Suiza
Faculty of Science - Suiza |
| 53 | Schwarz, Richard P. | Hombre |
Patashnick Voorheesville Observ - Estados Unidos
Patashnick Voorheesville Observatory - Estados Unidos |
| 54 | Santos, W. A. | Hombre |
Instituto Milenio de Astrofísica - Chile
Pontificia Universidad Católica de Chile - Chile Millennium Institute for Astrophysics - Chile |
| 55 | Ségransan, Damien | Hombre |
Inst Astrofis Canarias - España
UNIV LA LAGUNA - España Instituto Astrofisico de Canarias - España Universidad de La Laguna - España |
| 56 | Torres-Miranda, Pascal | Hombre |
Pontificia Universidad Católica de Chile - Chile
|
| 57 | Mengel, Matthew W. | Hombre |
Univ Southern Queensland - Australia
University of Southern Queensland - Australia |
| 58 | Celino, J. J. | Hombre |
Univ Geneva - Suiza
Faculty of Science - Suiza |
| 59 | Zapata, A. | Hombre |
Pontificia Universidad Católica de Chile - Chile
|
| 60 | Snoddy, Erin | Mujer |
Swarthmore Coll - Estados Unidos
Swarthmore College - Estados Unidos |
| 61 | Okumura, Jack | Hombre |
Univ Southern Queensland - Australia
University of Southern Queensland - Australia |
| 62 | Ricker, George R. | Hombre |
MIT - Estados Unidos
MIT Kavli Institute for Astrophysics and Space Research - Estados Unidos Massachusetts Institute of Technology - Estados Unidos |
| 63 | Vanderspek, R. | Hombre |
MIT - Estados Unidos
MIT Kavli Institute for Astrophysics and Space Research - Estados Unidos Massachusetts Institute of Technology - Estados Unidos |
| 64 | Latham, David W. | Hombre |
Ctr Astrophys Harvard & Smithsonian - Estados Unidos
Harvard-Smithsonian Center for Astrophysics - Estados Unidos |
| 65 | Hart, R. | Hombre |
Univ Southern Queensland - Australia
Princeton Univ - Estados Unidos University of Southern Queensland - Australia Princeton University - Estados Unidos |
| 66 | Stalport, M. | Hombre |
MIT - Estados Unidos
MIT Kavli Institute for Astrophysics and Space Research - Estados Unidos Massachusetts Institute of Technology - Estados Unidos MIT School of Engineering - Estados Unidos |
| 67 | JENKINS, JAMES STEWART | Hombre |
NASA - Estados Unidos
NASA Ames Research Center - Estados Unidos |
| 68 | Colon, Knicole | - |
NASA - Estados Unidos
NASA Goddard Space Flight Center - Estados Unidos |
| 69 | Henze, Christopher E. | Hombre |
NASA - Estados Unidos
|
| 70 | Krishnamurthy, Akshata | - |
MIT - Estados Unidos
MIT Kavli Institute for Astrophysics and Space Research - Estados Unidos Massachusetts Institute of Technology - Estados Unidos |
| 71 | Ting, Eric B. | Hombre |
NASA - Estados Unidos
NASA Ames Research Center - Estados Unidos |
| 72 | VILLANUEVA, STEVEN, JR. | Hombre |
MIT - Estados Unidos
MIT Kavli Institute for Astrophysics and Space Research - Estados Unidos Massachusetts Institute of Technology - Estados Unidos |
| 73 | VILLANUEVA, STEVEN, JR. | Hombre |
MIT - Estados Unidos
MIT Kavli Institute for Astrophysics and Space Research - Estados Unidos Massachusetts Institute of Technology - Estados Unidos |
| Fuente |
|---|
| Pontificia Universidad Católica de Chile |
| Proyecto Basal |
| Australian Research Council |
| NSF |
| NASA |
| National Aeronautics and Space Administration |
| University of Florida |
| Instituto de Astrofisica de Canarias |
| Princeton University |
| FONDECYT postdoctoral fellowship |
| NASA Science Mission directorate |
| NSF MRI |
| NASA High-End Computing (HEC) Program through the NASA Advanced Supercomputing (NAS) Division at Ames Research Center |
| University of Louisville |
| Ames Research Center |
| SNSF |
| National Science Foundation Graduate Research Fellowship Program |
| JST PRESTO grant |
| Space Telescope Science Institute |
| JSPS KAKENHI grant |
| University of Texas at Austin |
| NASA's Science Mission directorate |
| California Institute of Technology |
| UNSW Australia |
| NASA Exoplanet Exploration Program |
| NASA Ames Research Center |
| Mount Cuba Astronomical Foundation |
| University of California Riverside |
| Nanjing University |
| University of Southern Queensland |
| MIT |
| George Mason University |
| NSF MRI grant |
| Max-Planck-Institut fur Astronomie |
| NASA grants |
| Nordic Optical Telescope |
| Observatorio del Roque de los Muchachos |
| Instituto de Astrof?sica de Canarias |
| Carnegie Institute |
| NASA's Science Mission |
| ANID-Millennium Science Initiative |
| CONICYT/PFCHA-Doctorado Nacional Chile |
| La Silla Observatory of the European Organisation for Astronomical Research in the Southern Hemisphere under ESO program |
| NASA through Hubble Fellowship grants |
| MEXT/JSPS KAKENHI grant |
| Institut für Astronomie |
| Agradecimiento |
|---|
| This work is partly supported by JSPS KAKENHI grant Nos. JP18H01265 and JP18H05439 and JST PRESTO grant No. JPMJPR1775. |
| This paper includes data collected by the K2 mission. Funding for the K2 mission is provided by the NASA Science Mission directorate. |
| The HATSouth network is operated by a collaboration consisting of Princeton University (PU), the Max-Planck-Institut fur Astronomie (MPIA), the Australian National University (ANU), and the Pontificia Universidad Catolica de Chile (PUC). The station at Las Campanas Observatory (LCO) of the Carnegie Institute is operated by PU in conjunction with PUC, the station at the High Energy Spectroscopic Survey (H.E.S.S.) site is operated in conjunction with MPIA, and the station at Siding Spring Observatory (SSO) is operated jointly with ANU. Development of the HATSouth project was funded by NSF MRI grant NSF/AST-0723074, and operations have been supported by NASA grants NNX09AB29G, NNX12AH91H, and NNX17AB61G. |
| This paper includes observations made with the Nordic Optical Telescope (program ID: 55-019), operated by the Nordic Optical Telescope Scientific Association at the Observatorio del Roque de los Muchachos, La Palma, Spain, of the Instituto de Astrofisica de Canarias. |
| This paper includes observations made with Minerva-Australis. Minerva-Australis is supported by Australian Research Council LIEF Grant LE160100001, Discovery Grant DP180100972, the Mount Cuba Astronomical Foundation, and institutional partners the University of Southern Queensland, UNSW Australia, MIT, Nanjing University, George Mason University, the University of Louisville, the University of California Riverside, the University of Florida, and the University of Texas at Austin. We respectfully acknowledge the traditional custodians of all lands throughout Australia and recognize their continued cultural and spiritual connection to the land, waterways, cosmos, and community. We pay our deepest respects to all Elders, ancestors, and descendants of the Giabal, Jarowair, and Kambuwal nations, upon whose lands the Minerva-Australis facility at Mt. Kent is situated. |
| This research is based on observations collected with the CORALIE echelle spectrograph mounted on the 1.2 m Swiss telescope and the HARPS spectrograph on the ESO 3.6 m telescope at La Silla Observatory of the European Organisation for Astronomical Research in the Southern Hemisphere under ESO program 0103.C-0874(A). |
| NESSI was funded by the NASA Exoplanet Exploration Program and the NASA Ames Research Center. NESSI was built at the Ames Research Center by Steve B. Howell, Nic Scott, Elliott P. Horch, and Emmett Quigley. The authors are honored to be permitted to conduct observations on Iolkam Du'ag (Kitt Peak), a mountain within the Tohono O'odham Nation with particular significance to the Tohono O'odham people. |
| We thank the Swiss National Science Foundation (SNSF) and Geneva University for their continuous support of our planet search programs. This work has been carried out under the framework of the National Centre for Competence in Research "PlanetS" supported by SNSF. This publication makes use of the Data & Analysis Center for Exoplanets (DACE), which is a facility based at the University of Geneva dedicated to extrasolar planet data visualization, exchange, and analysis. DACE is a platform of the Swiss National Centre of Competence in Research (NCCR) PlanetS, federating the Swiss expertise in Exoplanet research. The DACE platform is available at https://dace.unige.ch. |
| A.J. and R.B. acknowledge support from FONDECYT Postdoctoral Fellowship Projects 1171208 and 3180246, respectively, and ANID-Millennium Science Initiative-ICN12_009. |
| D.D. and J.K.T. acknowledge support provided by NASA through Hubble Fellowship grants HST-HF2-51372.001-A and HST-HF2-51399.001, respectively, awarded by the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., for NASA, under contract NAS5-26555. |
| I.J.M.C. acknowledges support from the NSF through grant AST-1824644. |
| J.H. is supported by SNSF through Ambizione grant No. PZ00P2_180098. |
| K.P. acknowledges support from NASA grant 80NSSC18K1009. |
| M.R.D. acknowledges the support of CONICYT/PFCHA-Doctorado Nacional-2014 21140646 Chile and Proyecto Basal AFB-170002. |
| M.T. is supported by MEXT/JSPS KAKENHI grant Nos. 18H05442, 15H02063, and 22000005. |
| This material is based upon work supported by the National Science Foundation Graduate Research Fellowship Program under grant No. DGE-1746045. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation. |
| This work is partly supported by JSPS KAKENHI grant Nos. JP18H01265 and JP18H05439 and JST PRESTO grant No. JPMJPR1775. |
| This paper includes data collected by the TESS mission, which are publicly available from the Mikulski Archive for Space Telescopes (MAST). Funding for the TESS mission is provided by NASA's Science Mission directorate. Resources supporting this work were provided by the NASA High-End Computing (HEC) Program through the NASA Advanced Supercomputing (NAS) Division at Ames Research Center for the production of the SPOC data products. This paper includes data collected by the K2 mission. Funding for the K2 mission is provided by the NASA Science Mission directorate. This research has made use of the Exoplanet Follow-up Observation Program website, which is operated by the California Institute of Technology, under contract with the National Aeronautics and Space Administration under the Exoplanet Exploration Program. This work makes use of observations from the LCOGT network. The HATSouth network is operated by a collaboration consisting of Princeton University (PU), the Max-Planck- Institut für Astronomie (MPIA), the Australian National University (ANU), and the Pontificia Universidad Católica de Chile (PUC). The station at Las Campanas Observatory (LCO) of the Carnegie Institute is operated by PU in conjunction with PUC, the station at the High Energy Spectroscopic Survey (H.E.S.S.) site is operated in conjunction with MPIA, and the station at Siding Spring Observatory (SSO) is operated jointly with ANU. Development of the HATSouth project was funded by NSF MRI grant NSF/AST-0723074, and operations have been supported by NASA grants NNX09AB29G, NNX12AH91H, and NNX17AB61G. This paper includes observations made with the Nordic Optical Telescope (program ID: 55-019), operated by the Nordic Optical Telescope Scientific Association at the Observatorio del Roque de los Muchachos, La Palma, Spain, of the Instituto de Astrofísica de Canarias. |
