The TESS-Keck Survey. XXII. A sub-Neptune Orbiting TOI-1437
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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
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2024
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| author | Pidhorodetska, Daria Gilbert, Emily A. Kane, Stephen R. Barclay, Thomas Polanski, Alex S. Hill, Michelle L. Stassun, Keivan G. Giacalone, Steven Ciardi, David R. Boyle, Andrew W. Howell, Steve B. Lillo-Box, Jorge MacDougall, Mason G. Fetherolf, Tara Batalha, Natalie M. Crossfield, Ian J. M. Dressing, Courtney Fulton, Benjamin Howard, Andrew W. Huber, Daniel Isaacson, Howard Petigura, Erik A. Robertson, Paul Weiss, Lauren M. Angelo, Isabel Beard, Corey Behmard, Aida Blunt, Sarah Brinkman, Casey L. Chontos, Ashley Dai, Fei Dalba, Paul A. Holcomb, Rae Lubin, Jack Mayo, Andrew W. Murphy, Joseph M. Akana Rice, Malena Rubenzahl, Ryan Scarsdale, Nicholas Turtelboom, Emma V. Tyler, Dakotah Van Zandt, Judah Schwieterman, Edward W. |
| author_facet | Pidhorodetska, Daria Gilbert, Emily A. Kane, Stephen R. Barclay, Thomas Polanski, Alex S. Hill, Michelle L. Stassun, Keivan G. Giacalone, Steven Ciardi, David R. Boyle, Andrew W. Howell, Steve B. Lillo-Box, Jorge MacDougall, Mason G. Fetherolf, Tara Batalha, Natalie M. Crossfield, Ian J. M. Dressing, Courtney Fulton, Benjamin Howard, Andrew W. Huber, Daniel Isaacson, Howard Petigura, Erik A. Robertson, Paul Weiss, Lauren M. Angelo, Isabel Beard, Corey Behmard, Aida Blunt, Sarah Brinkman, Casey L. Chontos, Ashley Dai, Fei Dalba, Paul A. Holcomb, Rae Lubin, Jack Mayo, Andrew W. Murphy, Joseph M. Akana Rice, Malena Rubenzahl, Ryan Scarsdale, Nicholas Turtelboom, Emma V. Tyler, Dakotah Van Zandt, Judah Schwieterman, Edward W. |
| contents | Exoplanet discoveries have revealed a dramatic diversity of planet sizes across a vast array of orbital architectures. Sub-Neptunes are of particular interest; due to their absence in our own solar system, we rely on demographics of exoplanets to better understand their bulk composition and formation scenarios. Here, we present the discovery and characterization of TOI-1437 b, a sub-Neptune with a 18.84 day orbit around a near-Solar analog (Mstar = 1.10 +/- 0.10 Msun, Rstar = 1.17 +/- 0.12 Rsun). The planet was detected using photometric data from the Transiting Exoplanet Survey Satellite (TESS) mission and radial velocity follow-up observations were carried out as a part of the TESS-Keck Survey (TKS) using both the HIRES instrument at Keck Observatory and the Levy Spectrograph on the Automated Planet Finder (APF) telescope. A combined analysis of these data reveal a planet radius of Rp = 2.24 +/- 0.23 Rearth and a mass measurement of Mp = 9.6 +/- 3.9 Mearth). TOI-1437 b is one of few (~50) known transiting sub-Neptunes orbiting a solar-mass star that has a radial velocity mass measurement. As the formation pathway of these worlds remains an unanswered question, the precise mass characterization of TOI-1437 b may provide further insight into this class of planet. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_12448 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | The TESS-Keck Survey. XXII. A sub-Neptune Orbiting TOI-1437 Pidhorodetska, Daria Gilbert, Emily A. Kane, Stephen R. Barclay, Thomas Polanski, Alex S. Hill, Michelle L. Stassun, Keivan G. Giacalone, Steven Ciardi, David R. Boyle, Andrew W. Howell, Steve B. Lillo-Box, Jorge MacDougall, Mason G. Fetherolf, Tara Batalha, Natalie M. Crossfield, Ian J. M. Dressing, Courtney Fulton, Benjamin Howard, Andrew W. Huber, Daniel Isaacson, Howard Petigura, Erik A. Robertson, Paul Weiss, Lauren M. Angelo, Isabel Beard, Corey Behmard, Aida Blunt, Sarah Brinkman, Casey L. Chontos, Ashley Dai, Fei Dalba, Paul A. Holcomb, Rae Lubin, Jack Mayo, Andrew W. Murphy, Joseph M. Akana Rice, Malena Rubenzahl, Ryan Scarsdale, Nicholas Turtelboom, Emma V. Tyler, Dakotah Van Zandt, Judah Schwieterman, Edward W. Earth and Planetary Astrophysics Exoplanet discoveries have revealed a dramatic diversity of planet sizes across a vast array of orbital architectures. Sub-Neptunes are of particular interest; due to their absence in our own solar system, we rely on demographics of exoplanets to better understand their bulk composition and formation scenarios. Here, we present the discovery and characterization of TOI-1437 b, a sub-Neptune with a 18.84 day orbit around a near-Solar analog (Mstar = 1.10 +/- 0.10 Msun, Rstar = 1.17 +/- 0.12 Rsun). The planet was detected using photometric data from the Transiting Exoplanet Survey Satellite (TESS) mission and radial velocity follow-up observations were carried out as a part of the TESS-Keck Survey (TKS) using both the HIRES instrument at Keck Observatory and the Levy Spectrograph on the Automated Planet Finder (APF) telescope. A combined analysis of these data reveal a planet radius of Rp = 2.24 +/- 0.23 Rearth and a mass measurement of Mp = 9.6 +/- 3.9 Mearth). TOI-1437 b is one of few (~50) known transiting sub-Neptunes orbiting a solar-mass star that has a radial velocity mass measurement. As the formation pathway of these worlds remains an unanswered question, the precise mass characterization of TOI-1437 b may provide further insight into this class of planet. |
| title | The TESS-Keck Survey. XXII. A sub-Neptune Orbiting TOI-1437 |
| topic | Earth and Planetary Astrophysics |
| url | https://arxiv.org/abs/2405.12448 |