K2-288Bb: A Small Temperate Planet in a Low-mass Binary System Discovered by Citizen Scientists
Observations from the Kepler and K2 missions have provided the astronomical community with unprecedented amounts of data to search for transiting exoplanets and other astrophysical phenomena. Here, we present K2-288, a low-mass binary system (M2.0 ± 1.0; M3.0 ± 1.0) hosting a small (R p = 1.9 R[subs...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
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IOP Publishing
2019
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| Online Access: | https://hdl.handle.net/1721.1/121222 |
| _version_ | 1811090819320381440 |
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| author | Feinstein, Adina D. Schlieder, Joshua E. Livingston, John H. Ciardi, David R. Howard, Andrew W. Arnold, Lauren Barentsen, Geert Bristow, Makennah Christiansen, Jessie L. Crossfield, Ian Jm Dressing, Courtney D. Gonzales, Erica J. Kosiarek, Molly J. Lintott, Chris Miller, Grant Morales, Farisa Y. Petigura, Erik A. Thackeray, Beverly Ault, Joanne Baeten, Elisabeth Jonkeren, Alexander F. Langley, James Moshinaly, Houssen Pearson, Kirk Tanner, Christopher Treasure, Joanna |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Feinstein, Adina D. Schlieder, Joshua E. Livingston, John H. Ciardi, David R. Howard, Andrew W. Arnold, Lauren Barentsen, Geert Bristow, Makennah Christiansen, Jessie L. Crossfield, Ian Jm Dressing, Courtney D. Gonzales, Erica J. Kosiarek, Molly J. Lintott, Chris Miller, Grant Morales, Farisa Y. Petigura, Erik A. Thackeray, Beverly Ault, Joanne Baeten, Elisabeth Jonkeren, Alexander F. Langley, James Moshinaly, Houssen Pearson, Kirk Tanner, Christopher Treasure, Joanna |
| author_sort | Feinstein, Adina D. |
| collection | MIT |
| description | Observations from the Kepler and K2 missions have provided the astronomical community with unprecedented amounts of data to search for transiting exoplanets and other astrophysical phenomena. Here, we present K2-288, a low-mass binary system (M2.0 ± 1.0; M3.0 ± 1.0) hosting a small (R p = 1.9 R[subscript ⊕]), temperate (T[subscript eq] = 226 K) planet observed in K2 Campaign 4. The candidate was first identified by citizen scientists using Exoplanet Explorers hosted on the Zooniverse platform. Follow-up observations and detailed analyses validate the planet and indicate that it likely orbits the secondary star on a 31.39-day period. This orbit places K2-288Bb in or near the habitable zone of its low-mass host star. K2-288Bb resides in a system with a unique architecture, as it orbits at > 0.1 au from one component in a moderate separation binary (a[subscript proj] ~ 55 au), and further follow-up may provide insight into its formation and evolution. Additionally, its estimated size straddles the observed gap in the planet radius distribution. Planets of this size occur less frequently and may be in a transient phase of radius evolution. K2-288 is the third transiting planet system identified by the Exoplanet Explorers program and its discovery exemplifies the value of citizen science in the era of Kepler, K2, and the Transiting Exoplanet Survey Satellite. |
| first_indexed | 2024-09-23T14:52:27Z |
| format | Article |
| id | mit-1721.1/121222 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T14:52:27Z |
| publishDate | 2019 |
| publisher | IOP Publishing |
| record_format | dspace |
| spelling | mit-1721.1/1212222022-09-29T11:09:16Z K2-288Bb: A Small Temperate Planet in a Low-mass Binary System Discovered by Citizen Scientists Feinstein, Adina D. Schlieder, Joshua E. Livingston, John H. Ciardi, David R. Howard, Andrew W. Arnold, Lauren Barentsen, Geert Bristow, Makennah Christiansen, Jessie L. Crossfield, Ian Jm Dressing, Courtney D. Gonzales, Erica J. Kosiarek, Molly J. Lintott, Chris Miller, Grant Morales, Farisa Y. Petigura, Erik A. Thackeray, Beverly Ault, Joanne Baeten, Elisabeth Jonkeren, Alexander F. Langley, James Moshinaly, Houssen Pearson, Kirk Tanner, Christopher Treasure, Joanna Massachusetts Institute of Technology. Department of Physics Observations from the Kepler and K2 missions have provided the astronomical community with unprecedented amounts of data to search for transiting exoplanets and other astrophysical phenomena. Here, we present K2-288, a low-mass binary system (M2.0 ± 1.0; M3.0 ± 1.0) hosting a small (R p = 1.9 R[subscript ⊕]), temperate (T[subscript eq] = 226 K) planet observed in K2 Campaign 4. The candidate was first identified by citizen scientists using Exoplanet Explorers hosted on the Zooniverse platform. Follow-up observations and detailed analyses validate the planet and indicate that it likely orbits the secondary star on a 31.39-day period. This orbit places K2-288Bb in or near the habitable zone of its low-mass host star. K2-288Bb resides in a system with a unique architecture, as it orbits at > 0.1 au from one component in a moderate separation binary (a[subscript proj] ~ 55 au), and further follow-up may provide insight into its formation and evolution. Additionally, its estimated size straddles the observed gap in the planet radius distribution. Planets of this size occur less frequently and may be in a transient phase of radius evolution. K2-288 is the third transiting planet system identified by the Exoplanet Explorers program and its discovery exemplifies the value of citizen science in the era of Kepler, K2, and the Transiting Exoplanet Survey Satellite. 2019-06-07T18:59:47Z 2019-06-07T18:59:47Z 2019-01 2018-12 2019-03-18T16:19:20Z Article http://purl.org/eprint/type/JournalArticle 1538-3881 0004-6256 https://hdl.handle.net/1721.1/121222 Feinstein, Adina D. et al. “K2-288Bb: A Small Temperate Planet in a Low-Mass Binary System Discovered by Citizen Scientists.” The Astronomical Journal 157, 2 (January 2019): 40 © The American Astronomical Society http://dx.doi.org/10.3847/1538-3881/aafa70 Astronomical Journal https://creativecommons.org/licenses/by/3.0/ application/pdf IOP Publishing |
| spellingShingle | Feinstein, Adina D. Schlieder, Joshua E. Livingston, John H. Ciardi, David R. Howard, Andrew W. Arnold, Lauren Barentsen, Geert Bristow, Makennah Christiansen, Jessie L. Crossfield, Ian Jm Dressing, Courtney D. Gonzales, Erica J. Kosiarek, Molly J. Lintott, Chris Miller, Grant Morales, Farisa Y. Petigura, Erik A. Thackeray, Beverly Ault, Joanne Baeten, Elisabeth Jonkeren, Alexander F. Langley, James Moshinaly, Houssen Pearson, Kirk Tanner, Christopher Treasure, Joanna K2-288Bb: A Small Temperate Planet in a Low-mass Binary System Discovered by Citizen Scientists |
| title | K2-288Bb: A Small Temperate Planet in a Low-mass Binary System Discovered by Citizen Scientists |
| title_full | K2-288Bb: A Small Temperate Planet in a Low-mass Binary System Discovered by Citizen Scientists |
| title_fullStr | K2-288Bb: A Small Temperate Planet in a Low-mass Binary System Discovered by Citizen Scientists |
| title_full_unstemmed | K2-288Bb: A Small Temperate Planet in a Low-mass Binary System Discovered by Citizen Scientists |
| title_short | K2-288Bb: A Small Temperate Planet in a Low-mass Binary System Discovered by Citizen Scientists |
| title_sort | k2 288bb a small temperate planet in a low mass binary system discovered by citizen scientists |
| url | https://hdl.handle.net/1721.1/121222 |
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