LHS 1815b: The First Thick-disk Planet Detected by TESS
We report the first discovery of a thick-disk planet, LHS 1815b (TOI-704b, TIC 260004324), detected in the Transiting Exoplanet Survey Satellite (TESS) survey. LHS 1815b transits a bright (V = 12.19 mag, K = 7.99 mag) and quiet M dwarf located 29.87 ± 0.02 pc away with a mass of 0.502 ± 0.015 M ⊙ an...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
American Astronomical Society
2020
|
| Online Access: | https://hdl.handle.net/1721.1/125260 |
| _version_ | 1826215828504182784 |
|---|---|
| author | Gan, Tianjun Shporer, Abraham-Avi Livingston, John H. Collins, Karen A. Mao, Shude Trani, Alessandro A. Gandolfi, Davide Hirano, Teruyuki Luque, Rafael Stassun, Keivan G. Ziegler, Carl Howell, Steve B. Hellier, Coel Irwin, Jonathan M. Winters, Jennifer G. Anderson, David R. Briceño, César Law, Nicholas Mann, Andrew W. Bonfils, Xavier Astudillo-Defru, Nicola Jensen, Eric L. N. Anglada-Escudé, Guillem Ricker, George R Vanderspek, Roland K Latham, David W. Seager, Sara Winn, Joshua N. Jenkins, Jon M. Furesz, Gabor Guerrero, Natalia M. Quintana, Elisa Twicken, Joseph D. Caldwell, Douglas A. Tenenbaum, Peter Huang, Chelsea X. Rowden, Pamela Rojas-Ayala, Bárbara |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Gan, Tianjun Shporer, Abraham-Avi Livingston, John H. Collins, Karen A. Mao, Shude Trani, Alessandro A. Gandolfi, Davide Hirano, Teruyuki Luque, Rafael Stassun, Keivan G. Ziegler, Carl Howell, Steve B. Hellier, Coel Irwin, Jonathan M. Winters, Jennifer G. Anderson, David R. Briceño, César Law, Nicholas Mann, Andrew W. Bonfils, Xavier Astudillo-Defru, Nicola Jensen, Eric L. N. Anglada-Escudé, Guillem Ricker, George R Vanderspek, Roland K Latham, David W. Seager, Sara Winn, Joshua N. Jenkins, Jon M. Furesz, Gabor Guerrero, Natalia M. Quintana, Elisa Twicken, Joseph D. Caldwell, Douglas A. Tenenbaum, Peter Huang, Chelsea X. Rowden, Pamela Rojas-Ayala, Bárbara |
| author_sort | Gan, Tianjun |
| collection | MIT |
| description | We report the first discovery of a thick-disk planet, LHS 1815b (TOI-704b, TIC 260004324), detected in the Transiting Exoplanet Survey Satellite (TESS) survey. LHS 1815b transits a bright (V = 12.19 mag, K = 7.99 mag) and quiet M dwarf located 29.87 ± 0.02 pc away with a mass of 0.502 ± 0.015 M ⊙ and a radius of 0.501 ± 0.030 R ⊙. We validate the planet by combining space- and ground-based photometry, spectroscopy, and imaging. The planet has a radius of 1.088 ± 0.064 R ⊕ with a 3σ mass upper limit of 8.7 M ⊕. We analyze the galactic kinematics and orbit of the host star LHS 1815 and find that it has a large probability (P thick/P thin = 6482) to be in the thick disk with a much higher expected maximal height (Z max = 1.8 kpc) above the Galactic plane compared with other TESS planet host stars. Future studies of the interior structure and atmospheric properties of planets in such systems using, for example, the upcoming James Webb Space Telescope, can investigate the differences in formation efficiency and evolution for planetary systems between different Galactic components (thick disks, thin disks, and halo). Keywords: Astrometric exoplanet detection ; Astrometry; Stellar kinematics; Transit photometry; Radio velocity |
| first_indexed | 2024-09-23T16:37:44Z |
| format | Article |
| id | mit-1721.1/125260 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T16:37:44Z |
| publishDate | 2020 |
| publisher | American Astronomical Society |
| record_format | dspace |
| spelling | mit-1721.1/1252602022-09-29T20:26:19Z LHS 1815b: The First Thick-disk Planet Detected by TESS Gan, Tianjun Shporer, Abraham-Avi Livingston, John H. Collins, Karen A. Mao, Shude Trani, Alessandro A. Gandolfi, Davide Hirano, Teruyuki Luque, Rafael Stassun, Keivan G. Ziegler, Carl Howell, Steve B. Hellier, Coel Irwin, Jonathan M. Winters, Jennifer G. Anderson, David R. Briceño, César Law, Nicholas Mann, Andrew W. Bonfils, Xavier Astudillo-Defru, Nicola Jensen, Eric L. N. Anglada-Escudé, Guillem Ricker, George R Vanderspek, Roland K Latham, David W. Seager, Sara Winn, Joshua N. Jenkins, Jon M. Furesz, Gabor Guerrero, Natalia M. Quintana, Elisa Twicken, Joseph D. Caldwell, Douglas A. Tenenbaum, Peter Huang, Chelsea X. Rowden, Pamela Rojas-Ayala, Bárbara Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences Massachusetts Institute of Technology. Department of Aeronautics and Astronautics MIT Kavli Institute for Astrophysics and Space Research We report the first discovery of a thick-disk planet, LHS 1815b (TOI-704b, TIC 260004324), detected in the Transiting Exoplanet Survey Satellite (TESS) survey. LHS 1815b transits a bright (V = 12.19 mag, K = 7.99 mag) and quiet M dwarf located 29.87 ± 0.02 pc away with a mass of 0.502 ± 0.015 M ⊙ and a radius of 0.501 ± 0.030 R ⊙. We validate the planet by combining space- and ground-based photometry, spectroscopy, and imaging. The planet has a radius of 1.088 ± 0.064 R ⊕ with a 3σ mass upper limit of 8.7 M ⊕. We analyze the galactic kinematics and orbit of the host star LHS 1815 and find that it has a large probability (P thick/P thin = 6482) to be in the thick disk with a much higher expected maximal height (Z max = 1.8 kpc) above the Galactic plane compared with other TESS planet host stars. Future studies of the interior structure and atmospheric properties of planets in such systems using, for example, the upcoming James Webb Space Telescope, can investigate the differences in formation efficiency and evolution for planetary systems between different Galactic components (thick disks, thin disks, and halo). Keywords: Astrometric exoplanet detection ; Astrometry; Stellar kinematics; Transit photometry; Radio velocity 2020-05-15T14:04:29Z 2020-05-15T14:04:29Z 2020-03 2019-12 2020-05-06T14:21:58Z Article http://purl.org/eprint/type/JournalArticle 1538-3881 https://hdl.handle.net/1721.1/125260 Gan, Tianjun, et al. "LHS 1815b: The First Thick-disk Planet Detected by TESS." The Astronomical Journal, 159 (April 2020). © 2020. The American Astronomical Society. All rights reserved. en http://dx.doi.org/10.3847/1538-3881/ab775a The 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 | Gan, Tianjun Shporer, Abraham-Avi Livingston, John H. Collins, Karen A. Mao, Shude Trani, Alessandro A. Gandolfi, Davide Hirano, Teruyuki Luque, Rafael Stassun, Keivan G. Ziegler, Carl Howell, Steve B. Hellier, Coel Irwin, Jonathan M. Winters, Jennifer G. Anderson, David R. Briceño, César Law, Nicholas Mann, Andrew W. Bonfils, Xavier Astudillo-Defru, Nicola Jensen, Eric L. N. Anglada-Escudé, Guillem Ricker, George R Vanderspek, Roland K Latham, David W. Seager, Sara Winn, Joshua N. Jenkins, Jon M. Furesz, Gabor Guerrero, Natalia M. Quintana, Elisa Twicken, Joseph D. Caldwell, Douglas A. Tenenbaum, Peter Huang, Chelsea X. Rowden, Pamela Rojas-Ayala, Bárbara LHS 1815b: The First Thick-disk Planet Detected by TESS |
| title | LHS 1815b: The First Thick-disk Planet Detected by TESS |
| title_full | LHS 1815b: The First Thick-disk Planet Detected by TESS |
| title_fullStr | LHS 1815b: The First Thick-disk Planet Detected by TESS |
| title_full_unstemmed | LHS 1815b: The First Thick-disk Planet Detected by TESS |
| title_short | LHS 1815b: The First Thick-disk Planet Detected by TESS |
| title_sort | lhs 1815b the first thick disk planet detected by tess |
| url | https://hdl.handle.net/1721.1/125260 |
| work_keys_str_mv | AT gantianjun lhs1815bthefirstthickdiskplanetdetectedbytess AT shporerabrahamavi lhs1815bthefirstthickdiskplanetdetectedbytess AT livingstonjohnh lhs1815bthefirstthickdiskplanetdetectedbytess AT collinskarena lhs1815bthefirstthickdiskplanetdetectedbytess AT maoshude lhs1815bthefirstthickdiskplanetdetectedbytess AT tranialessandroa lhs1815bthefirstthickdiskplanetdetectedbytess AT gandolfidavide lhs1815bthefirstthickdiskplanetdetectedbytess AT hiranoteruyuki lhs1815bthefirstthickdiskplanetdetectedbytess AT luquerafael lhs1815bthefirstthickdiskplanetdetectedbytess AT stassunkeivang lhs1815bthefirstthickdiskplanetdetectedbytess AT zieglercarl lhs1815bthefirstthickdiskplanetdetectedbytess AT howellsteveb lhs1815bthefirstthickdiskplanetdetectedbytess AT helliercoel lhs1815bthefirstthickdiskplanetdetectedbytess AT irwinjonathanm lhs1815bthefirstthickdiskplanetdetectedbytess AT wintersjenniferg lhs1815bthefirstthickdiskplanetdetectedbytess AT andersondavidr lhs1815bthefirstthickdiskplanetdetectedbytess AT bricenocesar lhs1815bthefirstthickdiskplanetdetectedbytess AT lawnicholas lhs1815bthefirstthickdiskplanetdetectedbytess AT mannandreww lhs1815bthefirstthickdiskplanetdetectedbytess AT bonfilsxavier lhs1815bthefirstthickdiskplanetdetectedbytess AT astudillodefrunicola lhs1815bthefirstthickdiskplanetdetectedbytess AT jensenericln lhs1815bthefirstthickdiskplanetdetectedbytess AT angladaescudeguillem lhs1815bthefirstthickdiskplanetdetectedbytess AT rickergeorger lhs1815bthefirstthickdiskplanetdetectedbytess AT vanderspekrolandk lhs1815bthefirstthickdiskplanetdetectedbytess AT lathamdavidw lhs1815bthefirstthickdiskplanetdetectedbytess AT seagersara lhs1815bthefirstthickdiskplanetdetectedbytess AT winnjoshuan lhs1815bthefirstthickdiskplanetdetectedbytess AT jenkinsjonm lhs1815bthefirstthickdiskplanetdetectedbytess AT fureszgabor lhs1815bthefirstthickdiskplanetdetectedbytess AT guerreronataliam lhs1815bthefirstthickdiskplanetdetectedbytess AT quintanaelisa lhs1815bthefirstthickdiskplanetdetectedbytess AT twickenjosephd lhs1815bthefirstthickdiskplanetdetectedbytess AT caldwelldouglasa lhs1815bthefirstthickdiskplanetdetectedbytess AT tenenbaumpeter lhs1815bthefirstthickdiskplanetdetectedbytess AT huangchelseax lhs1815bthefirstthickdiskplanetdetectedbytess AT rowdenpamela lhs1815bthefirstthickdiskplanetdetectedbytess AT rojasayalabarbara lhs1815bthefirstthickdiskplanetdetectedbytess |