A 20 Second Cadence View of Solar-type Stars and Their Planets with TESS: Asteroseismology of Solar Analogs and a Recharacterization of π Men c

Daniel Huber; Timothy R. White; Travis S. Metcalfe; Ashley Chontos; Michael M. Fausnaugh; Cynthia S. K. Ho; Vincent Van Eylen; Warrick H. Ball; Sarbani Basu; Timothy R. Bedding; Othman Benomar; Diego Bossini; Sylvain Breton; Derek L. Buzasi; Tiago L. Campante; William J. Chaplin; Jorgen Christensen-Dalsgaard; Margarida S. Cunha; Morgan Deal; Rafael A. Garcia; Antonio Garcia Munoz; Charlotte Gehan; Lucia Gonzalez-Cuesta; Chen Jiang; Cenk Kayhan; Hans Kjeldsen; Mia S. Lundkvist; Stephane Mathis; Savita Mathur; Mario J. P. F. G. Monteiro; Benard Nsamba; Jia Mian Joel Ong; Erika Pakstiene; Aldo M. Serenelli; Victor Silva Aguirre; Keivan G. Stassun; Dennis Stello; Sissel Norgaard Stilling; Mark Lykke Winther; Tao Wu; Thomas Barclay; Tansu Daylan; Maximilian N. Gunther; J. J. Hermes; Jon M. Jenkins; David W. Latham; Alan M. Levine; George R. Ricker; Sara Seager; Avi Shporer; Joseph D. Twicken; Roland K. Vanderspek; Joshua N. Winn

doi:10.3847/1538-3881/ac3000

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A 20 Second Cadence View of Solar-type Stars and Their Planets with TESS: Asteroseismology of Solar Analogs and a Recharacterization of π Men c

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A 20 Second Cadence View of Solar-type Stars and Their Planets with TESS: Asteroseismology of Solar Analogs and a Recharacterization of π Men c

Daniel Huber, Timothy R. White, Travis S. Metcalfe, Ashley Chontos, Michael M. Fausnaugh, Cynthia S. K. Ho, Vincent Van Eylen, Warrick H. Ball, Sarbani Basu, Timothy R. Bedding, …

The Astronomical journal, Vol.163(2), p.79

01/02/2022

DOI: https://doi.org/10.3847/1538-3881/ac3000

Résumé

Astronomy & Astrophysics

Physical Sciences

Science & Technology

We present an analysis of the first 20 second cadence light curves obtained by the TESS space telescope during its extended mission. We find improved precision of 20 second data compared to 2 minute data for bright stars when binned to the same cadence (approximate to 10%-25% better for T less than or similar to 8 mag, reaching equal precision at T approximate to 13 mag), consistent with pre-flight expectations based on differences in cosmic-ray mitigation algorithms. We present two results enabled by this improvement. First, we use 20 second data to detect oscillations in three solar analogs (gamma Pav, zeta Tuc, and pi Men) and use asteroseismology to measure their radii, masses, densities, and ages to approximate to 1%, approximate to 3%, approximate to 1%, and approximate to 20% respectively, including systematic errors. Combining our asteroseismic ages with chromospheric activity measurements, we find evidence that the spread in the activity-age relation is linked to stellar mass and thus the depth of the convection zone. Second, we combine 20 second data and published radial velocities to recharacterize pi Men c, which is now the closest transiting exoplanet for which detailed asteroseismology of the host star is possible. We show that pi Men c is located at the upper edge of the planet radius valley for its orbital period, confirming that it has likely retained a volatile atmosphere and that the "asteroseismic radius valley" remains devoid of planets. Our analysis favors a low eccentricity for pi Men c (<0.1 at 68% confidence), suggesting efficient tidal dissipation (Q/k (2,1) less than or similar to 2400) if it formed via high-eccentricity migration. Combined, these early results demonstrate the strong potential of TESS 20 second cadence data for stellar astrophysics and exoplanet science.

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Titre: A 20 Second Cadence View of Solar-type Stars and Their Planets with TESS: Asteroseismology of Solar Analogs and a Recharacterization of π Men c
Créateurs - sans rôle: Daniel Huber - Univ Hawaii, Inst Astron, 2680 Woodlawn Dr, Honolulu, HI 96822 USA
Timothy R. White - Univ Sydney, Sch Phys, Sydney Inst Astron SIfA, Sydney, NSW 2006, Australia
Travis S. Metcalfe - White Dwarf Res Corp, 9020 Brumm Trail, Golden, CO 80403 USA
Ashley Chontos - Univ Hawaii, Inst Astron, 2680 Woodlawn Dr, Honolulu, HI 96822 USA
Michael M. Fausnaugh - MIT, Dept Phys, 77 Massachusetts Ave, Cambridge, MA 02139 USA
Cynthia S. K. Ho - Univ Coll London, Mullard Space Sci Lab, Holmbury St Mary, Dorking RH5 6NT, Surrey, England
Vincent Van Eylen - Univ Coll London, Mullard Space Sci Lab, Holmbury St Mary, Dorking RH5 6NT, Surrey, England
Warrick H. Ball - Aarhus Univ, Stellar Astrophys Ctr SAC, Dept Phys & Astron, Ny Munkegade 120, DK-8000 Aarhus C, Denmark
Sarbani Basu - Yale University
Timothy R. Bedding - Univ Sydney, Sch Phys, Sydney Inst Astron SIfA, Sydney, NSW 2006, Australia
Othman Benomar - New York Univ Abu Dhabi, Ctr Space Sci, Abu Dhabi, U Arab Emirates
Diego Bossini - Univ Porto, Inst Astrofis & Ciencias Espaco, CAUP, Rua Estrelas, P-4150762 Porto, Portugal
Sylvain Breton - Univ Paris Saclay, Univ Paris Diderot, Sorbonne Paris Cite, CNRS,AIM,CEA, F-91191 Gif Sur Yvette, France
Derek L. Buzasi - Florida Gulf Coast Univ, Dept Chem & Phys, 10501 FGCU Blvd South, Ft Myers, FL 10501 USA
Tiago L. Campante - Univ Porto, Inst Astrofis & Ciencias Espaco, CAUP, Rua Estrelas, P-4150762 Porto, Portugal
William J. Chaplin - Aarhus Univ, Stellar Astrophys Ctr SAC, Dept Phys & Astron, Ny Munkegade 120, DK-8000 Aarhus C, Denmark
Jorgen Christensen-Dalsgaard - Aarhus Univ, Stellar Astrophys Ctr SAC, Dept Phys & Astron, Ny Munkegade 120, DK-8000 Aarhus C, Denmark
Margarida S. Cunha - Univ Porto, Inst Astrofis & Ciencias Espaco, CAUP, Rua Estrelas, P-4150762 Porto, Portugal
Morgan Deal - Univ Porto, Inst Astrofis & Ciencias Espaco, CAUP, Rua Estrelas, P-4150762 Porto, Portugal
Rafael A. Garcia - Univ Paris Saclay, Univ Paris Diderot, Sorbonne Paris Cite, CNRS,AIM,CEA, F-91191 Gif Sur Yvette, France
Antonio Garcia Munoz - Univ Paris Saclay, Univ Paris Diderot, Sorbonne Paris Cite, CNRS,AIM,CEA, F-91191 Gif Sur Yvette, France
Charlotte Gehan - Univ Porto, Inst Astrofis & Ciencias Espaco, CAUP, Rua Estrelas, P-4150762 Porto, Portugal
Lucia Gonzalez-Cuesta - Inst Astrofis Canarias IAC, E-38205 Tenerife, Spain
Chen Jiang - Max Planck Inst Sonnensyst Forsch, Justus von Liebig Weg 3, D-37077 Gottingen, Germany
Cenk Kayhan - Erciyes Univ, Sci Fac, Dept Astron & Space Sci, TR-38030 Kayseri, Turkey
Hans Kjeldsen - Aarhus Univ, Stellar Astrophys Ctr SAC, Dept Phys & Astron, Ny Munkegade 120, DK-8000 Aarhus C, Denmark
Mia S. Lundkvist - Aarhus Univ, Stellar Astrophys Ctr SAC, Dept Phys & Astron, Ny Munkegade 120, DK-8000 Aarhus C, Denmark
Stephane Mathis - Univ Paris Saclay, Univ Paris Diderot, Sorbonne Paris Cite, CNRS,AIM,CEA, F-91191 Gif Sur Yvette, France
Savita Mathur - Inst Astrofis Canarias IAC, E-38205 Tenerife, Spain
Mario J. P. F. G. Monteiro - Univ Porto, Inst Astrofis & Ciencias Espaco, CAUP, Rua Estrelas, P-4150762 Porto, Portugal
Benard Nsamba - Max Planck Inst Astrophys, Karl Schwarzschild Str 1, D-85748 Garching, Germany
Jia Mian Joel Ong - Yale Univ, Dept Astron, POB 208101, New Haven, CT 06520 USA
Erika Pakstiene - Vilnius Univ, Inst Theoret Phys & Astron, Sauletekio Av 3, LT-10257 Vilnius, Lithuania
Aldo M. Serenelli - CSIC, Inst Space Sci ICE, Campus UAB,Carrer Can Magrans S-N, E-08193 Barcelona, Spain
Victor Silva Aguirre - Aarhus Univ, Stellar Astrophys Ctr SAC, Dept Phys & Astron, Ny Munkegade 120, DK-8000 Aarhus C, Denmark
Keivan G. Stassun - Vanderbilt Univ, Dept Phys & Astron, 6301 Stevenson Ctr Lane, Nashville, TN 37235 USA
Dennis Stello - Univ Sydney, Sch Phys, Sydney Inst Astron SIfA, Sydney, NSW 2006, Australia
Sissel Norgaard Stilling - Aarhus Univ, Stellar Astrophys Ctr SAC, Dept Phys & Astron, Ny Munkegade 120, DK-8000 Aarhus C, Denmark
Mark Lykke Winther - Aarhus Univ, Stellar Astrophys Ctr SAC, Dept Phys & Astron, Ny Munkegade 120, DK-8000 Aarhus C, Denmark
Tao Wu - Chinese Acad Sci, Yunnan Observ, 396 Yangfangwang, Kunming 650216, Yunnan, Peoples R China
Thomas Barclay - NASA, Goddard Space Flight Ctr, 8800 Greenbelt Rd, Greenbelt, MD 20771 USA
Tansu Daylan - MIT, Dept Phys, 77 Massachusetts Ave, Cambridge, MA 02139 USA
Maximilian N. Gunther - MIT, Dept Phys, 77 Massachusetts Ave, Cambridge, MA 02139 USA
J. J. Hermes - Boston Univ, Dept Astron, 725 Commonwealth Ave, Boston, MA 02215 USA
Jon M. Jenkins - NASA, Ames Res Ctr, Moffett Field, CA 94035 USA
David W. Latham - Ctr Astrophys Harvard & Smithsonian, 60 Garden St, Cambridge, MA 02138 USA
Alan M. Levine - MIT, Dept Phys, 77 Massachusetts Ave, Cambridge, MA 02139 USA
George R. Ricker - MIT, Dept Phys, 77 Massachusetts Ave, Cambridge, MA 02139 USA
Sara Seager - MIT, Dept Phys, 77 Massachusetts Ave, Cambridge, MA 02139 USA
Avi Shporer - MIT, Dept Phys, 77 Massachusetts Ave, Cambridge, MA 02139 USA
Joseph D. Twicken - NASA, Ames Res Ctr, Moffett Field, CA 94035 USA
Roland K. Vanderspek - MIT, Dept Phys, 77 Massachusetts Ave, Cambridge, MA 02139 USA
Joshua N. Winn - Princeton Univ, Dept Astrophys Sci, 4 Ivy Lane, Princeton, NJ 08544 USA
Détails de publication: The Astronomical journal, Vol.163(2), p.79
Éditeur: IOP Publishing Ltd
Nombre de pages: 17
Note de subvention: DNRF106 / Danish National Research Foundation; Danmarks Grundforskningsfond 09.3.3-LMT-K-712-01-0103 / European Social Fund via the Lithuanian Science Council (LMTLT); Research Council of Lithuania (LMTLT) POCI-01-0145-FEDER-030389 / FEDER-Fundo Europeu de Desenvolvimento Regional through COMPETE2020-Programa Operacional Competitividade e Internacionalizacao UIDB/04434/2020; UIDP/04434/2020; PTDC/FIS-AST/30389/2017 / FCT/MCTES; Fundacao para a Ciencia e a Tecnologia (FCT) 80NSSC20K0458 / NASA; National Aeronautics & Space Administration (NASA) Ten Thousand Talents Program of Yunnan for Top-notch Young Talents CNES; Centre National D'etudes Spatiales 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 NASA's Science Mission directorate DGE 1842402 / National Science Foundation through the Graduate Research Fellowship Program
Identifiants: 99156840909311
Unité académique: Laboratoire Univers et Particules de Montpellier - LUPM
Langue: English
Type de ressource: Journal article