π Earth: A 3.14 day Earth-sized Planet from K2's Kitchen Served Warm by the SPECULOOS Team
We report on the discovery of a transiting Earth-sized (0.95R ⊕) planet around an M3.5 dwarf star at 57 pc, EPIC 249631677. The planet has a period of ~3.14 days, i.e., ~π, with an installation of 7.45 S⊕. The detection was made using publicly available data from K2's Campaign 15. We observed t...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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American Astronomical Society
2020
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| Online Access: | https://hdl.handle.net/1721.1/128490 |
| _version_ | 1826211254609379328 |
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| author | Niraula, Prajwal de Wit, Julien Rackham, Benjamin V Ducrot, Elsa Burdanov, Artem Crossfield, Ian J. M. Grootel, Valérie Van Murray, Catriona Garcia, Lionel J. Alonso, Roi Beard, Corey Maqueo Chew, Yilen Gómez Delrez, Laetitia Demory, Brice-Olivier Fulton, Benjamin J. Gillon, Michaël Günther, Maximilian N. Howard, Andrew W. Issacson, Howard Jehin, Emmanuël Pedersen, Peter P. Pozuelos, Francisco J. Queloz, Didier Rebolo-López, Rafael Lalitha, Sairam Sebastian, Daniel Thompson, Samantha Triaud, Amaury H. M. J. |
| author2 | Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences |
| author_facet | Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences Niraula, Prajwal de Wit, Julien Rackham, Benjamin V Ducrot, Elsa Burdanov, Artem Crossfield, Ian J. M. Grootel, Valérie Van Murray, Catriona Garcia, Lionel J. Alonso, Roi Beard, Corey Maqueo Chew, Yilen Gómez Delrez, Laetitia Demory, Brice-Olivier Fulton, Benjamin J. Gillon, Michaël Günther, Maximilian N. Howard, Andrew W. Issacson, Howard Jehin, Emmanuël Pedersen, Peter P. Pozuelos, Francisco J. Queloz, Didier Rebolo-López, Rafael Lalitha, Sairam Sebastian, Daniel Thompson, Samantha Triaud, Amaury H. M. J. |
| author_sort | Niraula, Prajwal |
| collection | MIT |
| description | We report on the discovery of a transiting Earth-sized (0.95R ⊕) planet around an M3.5 dwarf star at 57 pc, EPIC 249631677. The planet has a period of ~3.14 days, i.e., ~π, with an installation of 7.45 S⊕. The detection was made using publicly available data from K2's Campaign 15. We observed three additional transits with SPECULOOS Southern and Northern Observatories, and a stellar spectrum from Keck/HIRES, which allowed us to validate the planetary nature of the signal. The confirmed planet is well suited for comparative terrestrial exoplanetology. While exoplanets transiting ultracool dwarfs present the best opportunity for atmospheric studies of terrestrial exoplanets with the James Webb Space Telescope, those orbiting mid-M dwarfs within 100 pc such as EPIC 249631677b will become increasingly accessible with the next generation of observatories. |
| first_indexed | 2024-09-23T15:03:02Z |
| format | Article |
| id | mit-1721.1/128490 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T15:03:02Z |
| publishDate | 2020 |
| publisher | American Astronomical Society |
| record_format | dspace |
| spelling | mit-1721.1/1284902022-10-02T00:16:53Z π Earth: A 3.14 day Earth-sized Planet from K2's Kitchen Served Warm by the SPECULOOS Team Niraula, Prajwal de Wit, Julien Rackham, Benjamin V Ducrot, Elsa Burdanov, Artem Crossfield, Ian J. M. Grootel, Valérie Van Murray, Catriona Garcia, Lionel J. Alonso, Roi Beard, Corey Maqueo Chew, Yilen Gómez Delrez, Laetitia Demory, Brice-Olivier Fulton, Benjamin J. Gillon, Michaël Günther, Maximilian N. Howard, Andrew W. Issacson, Howard Jehin, Emmanuël Pedersen, Peter P. Pozuelos, Francisco J. Queloz, Didier Rebolo-López, Rafael Lalitha, Sairam Sebastian, Daniel Thompson, Samantha Triaud, Amaury H. M. J. Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences Massachusetts Institute of Technology. Department of Physics MIT Kavli Institute for Astrophysics and Space Research We report on the discovery of a transiting Earth-sized (0.95R ⊕) planet around an M3.5 dwarf star at 57 pc, EPIC 249631677. The planet has a period of ~3.14 days, i.e., ~π, with an installation of 7.45 S⊕. The detection was made using publicly available data from K2's Campaign 15. We observed three additional transits with SPECULOOS Southern and Northern Observatories, and a stellar spectrum from Keck/HIRES, which allowed us to validate the planetary nature of the signal. The confirmed planet is well suited for comparative terrestrial exoplanetology. While exoplanets transiting ultracool dwarfs present the best opportunity for atmospheric studies of terrestrial exoplanets with the James Webb Space Telescope, those orbiting mid-M dwarfs within 100 pc such as EPIC 249631677b will become increasingly accessible with the next generation of observatories. 2020-11-16T20:54:56Z 2020-11-16T20:54:56Z 2020-09 2020-07 2020-10-20T14:29:32Z Article http://purl.org/eprint/type/JournalArticle 1538-3881 https://hdl.handle.net/1721.1/128490 Niraula, Prajwal et al. "π Earth: A 3.14 day Earth-sized Planet from K2's Kitchen Served Warm by the SPECULOOS Team." Astronomical Journal 160, 4 (September 2020): 172 © 2020 The American Astronomical Society en https://doi.org/10.3847/1538-3881/aba95f Astronomical Journal Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Astronomical Society The American Astronomical Society |
| spellingShingle | Niraula, Prajwal de Wit, Julien Rackham, Benjamin V Ducrot, Elsa Burdanov, Artem Crossfield, Ian J. M. Grootel, Valérie Van Murray, Catriona Garcia, Lionel J. Alonso, Roi Beard, Corey Maqueo Chew, Yilen Gómez Delrez, Laetitia Demory, Brice-Olivier Fulton, Benjamin J. Gillon, Michaël Günther, Maximilian N. Howard, Andrew W. Issacson, Howard Jehin, Emmanuël Pedersen, Peter P. Pozuelos, Francisco J. Queloz, Didier Rebolo-López, Rafael Lalitha, Sairam Sebastian, Daniel Thompson, Samantha Triaud, Amaury H. M. J. π Earth: A 3.14 day Earth-sized Planet from K2's Kitchen Served Warm by the SPECULOOS Team |
| title | π Earth: A 3.14 day Earth-sized Planet from K2's Kitchen Served Warm by the SPECULOOS Team |
| title_full | π Earth: A 3.14 day Earth-sized Planet from K2's Kitchen Served Warm by the SPECULOOS Team |
| title_fullStr | π Earth: A 3.14 day Earth-sized Planet from K2's Kitchen Served Warm by the SPECULOOS Team |
| title_full_unstemmed | π Earth: A 3.14 day Earth-sized Planet from K2's Kitchen Served Warm by the SPECULOOS Team |
| title_short | π Earth: A 3.14 day Earth-sized Planet from K2's Kitchen Served Warm by the SPECULOOS Team |
| title_sort | π earth a 3 14 day earth sized planet from k2 s kitchen served warm by the speculoos team |
| url | https://hdl.handle.net/1721.1/128490 |
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