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| 主要な著者: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| フォーマット: | Preprint |
| 出版事項: |
2024
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| 主題: | |
| オンライン･アクセス: | https://arxiv.org/abs/2401.03021 |
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| _version_ | 1866916081792188416 |
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| author | Dalba, Paul A. Kane, Stephen R. Isaacson, Howard Fulton, Benjamin Howard, Andrew W. Schwieterman, Edward W. Thorngren, Daniel P. Fortney, Jonathan Vowell, Noah Beard, Corey Blunt, Sarah Brinkman, Casey L. Chontos, Ashley Dai, Fei Giacalone, Steven Hill, Michelle L. Kosiarek, Molly Lubin, Jack Mayo, Andrew W. Mocnik, Teo Murphy, Joseph M. Akana Petigura, Erik A. Rice, Malena Rubenzahl, Ryan A. Van Zandt, Judah Weiss, Lauren M. Dragomir, Diana Kipping, David Payne, Matthew J. Roy, Arpita Teachey, Alex Villanueva Jr, Steven |
| author_facet | Dalba, Paul A. Kane, Stephen R. Isaacson, Howard Fulton, Benjamin Howard, Andrew W. Schwieterman, Edward W. Thorngren, Daniel P. Fortney, Jonathan Vowell, Noah Beard, Corey Blunt, Sarah Brinkman, Casey L. Chontos, Ashley Dai, Fei Giacalone, Steven Hill, Michelle L. Kosiarek, Molly Lubin, Jack Mayo, Andrew W. Mocnik, Teo Murphy, Joseph M. Akana Petigura, Erik A. Rice, Malena Rubenzahl, Ryan A. Van Zandt, Judah Weiss, Lauren M. Dragomir, Diana Kipping, David Payne, Matthew J. Roy, Arpita Teachey, Alex Villanueva Jr, Steven |
| contents | Discovering and characterizing exoplanets at the outer edge of the transit method's sensitivity has proven challenging owing to geometric biases and the practical difficulties associated with acquiring long observational baselines. Nonetheless, a sample of giant exoplanets on orbits longer than 100 days has been identified by transit hunting missions. We present long-term Doppler spectroscopy for 11 such systems with observation baselines spanning a few years to a decade. We model these radial velocity observations jointly with transit photometry to provide initial characterizations of these objects and the systems in which they exist. Specifically, we make new precise mass measurements for four long-period giant exoplanets (Kepler-111 c, Kepler-553 c, Kepler-849 b, and PH-2 b), we place new upper limits on mass for four others (Kepler-421 b, KOI-1431.01, Kepler-1513 b, and Kepler-952 b), and we show that several "confirmed" planets are in fact not planetary at all. We present these findings to complement similar efforts focused on closer-in short-period giant planets, and with the hope of inspiring future dedicated studies of cool giant exoplanets. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_03021 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Giant Outer Transiting Exoplanet Mass (GOT 'EM) Survey. IV. Long-term Doppler Spectroscopy for 11 Stars Thought to Host Cool Giant Exoplanets Dalba, Paul A. Kane, Stephen R. Isaacson, Howard Fulton, Benjamin Howard, Andrew W. Schwieterman, Edward W. Thorngren, Daniel P. Fortney, Jonathan Vowell, Noah Beard, Corey Blunt, Sarah Brinkman, Casey L. Chontos, Ashley Dai, Fei Giacalone, Steven Hill, Michelle L. Kosiarek, Molly Lubin, Jack Mayo, Andrew W. Mocnik, Teo Murphy, Joseph M. Akana Petigura, Erik A. Rice, Malena Rubenzahl, Ryan A. Van Zandt, Judah Weiss, Lauren M. Dragomir, Diana Kipping, David Payne, Matthew J. Roy, Arpita Teachey, Alex Villanueva Jr, Steven Earth and Planetary Astrophysics Discovering and characterizing exoplanets at the outer edge of the transit method's sensitivity has proven challenging owing to geometric biases and the practical difficulties associated with acquiring long observational baselines. Nonetheless, a sample of giant exoplanets on orbits longer than 100 days has been identified by transit hunting missions. We present long-term Doppler spectroscopy for 11 such systems with observation baselines spanning a few years to a decade. We model these radial velocity observations jointly with transit photometry to provide initial characterizations of these objects and the systems in which they exist. Specifically, we make new precise mass measurements for four long-period giant exoplanets (Kepler-111 c, Kepler-553 c, Kepler-849 b, and PH-2 b), we place new upper limits on mass for four others (Kepler-421 b, KOI-1431.01, Kepler-1513 b, and Kepler-952 b), and we show that several "confirmed" planets are in fact not planetary at all. We present these findings to complement similar efforts focused on closer-in short-period giant planets, and with the hope of inspiring future dedicated studies of cool giant exoplanets. |
| title | Giant Outer Transiting Exoplanet Mass (GOT 'EM) Survey. IV. Long-term Doppler Spectroscopy for 11 Stars Thought to Host Cool Giant Exoplanets |
| topic | Earth and Planetary Astrophysics |
| url | https://arxiv.org/abs/2401.03021 |