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HD 183579b: a warm sub-Neptune transiting a solar twin detected by TESS

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Autor(es):
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Gan, Tianjun [1] ; Bedell, Megan [2] ; Wang, Sharon Xuesong [1] ; Foreman-Mackey, Daniel [2] ; Melendez, Jorge [3] ; Mao, Shude [4, 1] ; Stassun, Keivan G. [5, 6] ; Howell, Steve B. [7] ; Ziegler, Carl [8] ; Wittenmyer, Robert A. [9] ; Hellier, Coel [10] ; Collins, Karen A. [11] ; Shporer, Avi [12, 13] ; Ricker, George R. [12, 13] ; Vanderspek, Roland [12, 13] ; Latham, David W. [11] ; Seager, Sara [12, 13, 14, 15] ; Winn, Joshua N. [16] ; Jenkins, Jon M. [7] ; Addison, Brett C. [9] ; Ballard, Sarah [17] ; Barclay, Thomas [18, 19] ; Bean, Jacob L. [20] ; Bowler, Brendan P. [21] ; Briceno, Cesar [22] ; Crossfield, Ian J. M. [23] ; Dittman, Jason [24, 11] ; Horner, Jonathan [9] ; Jensen, Eric L. N. [25] ; Kane, Stephen R. [26] ; Kielkopf, John [27] ; Kreidberg, Laura [24, 11] ; Law, Nicholas [28] ; Mann, Andrew W. [28] ; Mengel, Matthew W. [9] ; Morgan, Edward H. [12, 13] ; Okumura, Jack [9] ; Osborn, Hugh P. [12, 13, 29] ; Paegert, Martin [11] ; Plavchan, Peter [30] ; Schwarz, Richard P. [31] ; Shiao, Bernie [32] ; Smith, Jeffrey C. [7, 33] ; Spina, Lorenzo [34] ; Tinney, C. G. [35] ; Torres, Guillermo [11] ; Twicken, Joseph D. [7, 33] ; Vezie, Michael [12, 13] ; Wang, Gavin [36, 37] ; Wright, Duncan J. [9] ; Zhang, Hui [38]
Número total de Autores: 51
Afiliação do(s) autor(es):
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[1] Tsinghua Univ, Dept Astron & Tsinghua, Ctr Astrophys, Beijing 100084 - Peoples R China
[2] Flatiron Inst, Ctr Computat Astrophys, 162 Fifth Ave, New York, NY 10010 - USA
[3] Univ Sao Paulo, Dept Astron, IAG, Rua Matao 1226, BR-05509900 Sao Paulo - Brazil
[4] Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100012 - Peoples R China
[5] Vanderbilt Univ, Dept Phys & Astron, 6301 Stevenson Ctr Ln, Nashville, TN 37235 - USA
[6] Fisk Univ, Dept Phys, 1000 17th Ave North, Nashville, TN 37208 - USA
[7] NASA, Ames Res Ctr, Moffett Field, CA 94035 - USA
[8] Stephen F Austin State Univ, Dept Phys Engn & Astron, 1936 North St, Nacogdoches, TX 75962 - USA
[9] Univ Southern Queensland, Ctr Astrophys, West St, Toowoomba, Qld 4350 - Australia
[10] Keele Univ, Astrophys Grp, Keele ST5 5BG, Staffs - England
[11] Ctr Astrophys Harvard & Smithsonian, 60 Garden St, Cambridge, MA 02138 - USA
[12] MIT, Dept Phys, Cambridge, MA 02139 - USA
[13] MIT, Kavli Inst Astrophys & Space Res, Cambridge, MA 02139 - USA
[14] MIT, Dept Earth Atmospher & Planetary Sci, Cambridge, MA 02139 - USA
[15] MIT, Dept Aeronaut & Astronaut, 77 Massachusetts Ave, Cambridge, MA 02139 - USA
[16] Princeton Univ, Dept Astrophys Sci, 4 Ivy Lane, Princeton, NJ 08544 - USA
[17] Univ Florida, Depariment Astron, 211 Bryant Space Sci Ctr, Gainesville, FL 32611 - USA
[18] NASA, Goddard Space Flight Ctr, 8800 Greenbelt Rd, Greenbelt, MD 20771 - USA
[19] Univ Maryland, 1000 Hilltop Circle, Baltimore, MD 21250 - USA
[20] Univ Chicago, Dept Astron & Astrophys, 5640 S Ellis Ave, Chicago, IL 60637 - USA
[21] Univ Texas Austin, Dept Astron, Austin, TX 78712 - USA
[22] Cerro Tololo Interamer Observ, Carina 603, La Serena - Chile
[23] Univ Kansas, Dept Phys & Astron, 1082 Malott, 1251 Wescoe Hall Dr, Lawrence, KS 66045 - USA
[24] Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg - Germany
[25] Swarthmore Coll, Dept Phys & Astron, Swarthmore, PA 19081 - USA
[26] Univ Calif Riverside, Dept Earth & Planetary Sci, Riverside, CA 92521 - USA
[27] Univ Louisville, Dept Phys & Astron, Louisville, KY 40292 - USA
[28] Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC 27599 - USA
[29] Univ Bern, Ctr Space & Habitabil, NCCR PlanetS, CH-3012 Bern - Switzerland
[30] George Mason Univ, 4400 Univ Dr MS 3F3, Fairfax, VA 22030 - USA
[31] Patashnick Voorheesville Observ, Voorheesville, NY 12186 - USA
[32] Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 - USA
[33] SETI Inst, 189 Bernardo Ave, Suite 200, Mountain View, CA 94043 - USA
[34] INAF Osservatorio Astron Padova, Vicolo Osservatorio 5, I-35122 Padua - Italy
[35] UNSW Sydney, Sch Phys, Exoplanetary Sci UNSW, Sydney, NSW 2052 - Australia
[36] Tsinghua Int Sch, Beijing 100084 - Peoples R China
[37] StanfordOnline High Sch, 415 Broadway Acad Hall, Floor 2, 8853, Redwood City, CA 94063 - USA
[38] Nanjing Univ, Minist Educ, Key Lab Modern Astron & Astrophys, Sch Astron & Space Sci, Nanjing 210046, Jiangsu - Peoples R China
Número total de Afiliações: 38
Tipo de documento: Artigo Científico
Fonte: Monthly Notices of the Royal Astronomical Society; v. 507, n. 2, p. 2220-2240, OCT 2021.
Citações Web of Science: 0
Resumo

We report the discovery and characterization of a transiting warm sub-Neptune planet around the nearby bright (V = 8.75 mag, K = 7.15 mag) solar twin HD 183579, delivered by the Transiting Exoplanet Survey Satellite (TESS). The host star is located 56.8 +/- 0.1 pc away with a radius of R-{*} = 0.97 +/- 0.02R(circle dot) and a mass of M-{*} = 1.03 +/- 0.05M(circle dot). We confirm the planetary nature by combining space and ground-based photometry, spectroscopy, and imaging. We find that HD 183579b (TOI-1055b) has a radius of R-p = 3.53 +/- 0.13R(circle plus) on a 17.47 d orbit with a mass of M-p = 11.2 +/- 5.4M(circle plus) (3 sigma mass upper limit of 27.4M(circle plus)). HD 183579b is the fifth brightest known sub-Neptune planet system in the sky, making it an excellent target for future studies of the interior structure and atmospheric properties. By performing a line-by-line differential analysis using the high-resolution and signal-to-noise ratio HARPS spectra, we find that HD 183579 joins the typical solar twin sample, without a statistically significant refractory element depletion. (AU)

Processo FAPESP: 18/04055-8 - Espectroscopia de alta precisão: das primeiras estrelas aos planetas
Beneficiário:Jorge Luis Melendez Moreno
Modalidade de apoio: Auxílio à Pesquisa - Temático