干旱区生态环境知识资源中心(Arid): Discovery of a young low-mass brown dwarf transiting a fast-rotating F-type star by the Galactic Plane eXoplanet (GPX) survey

Arid

DOI	10.1093/mnras/stab1567
	Discovery of a young low-mass brown dwarf transiting a fast-rotating F-type star by the Galactic Plane eXoplanet (GPX) survey
	Benni, P.; Burdanov, A. Y.; Krushinsky, V. V.; Bonfanti, A.; Hebrard, G.; Almenara, J. M.; Dalal, S.; Demangeon, O. D. S.; Tsantaki, M.; Pepper, J.; Stassun, K. G.; Vanderburg, A.; Belinski, A.; Kashaev, F.; Barkaoui, K.; Kim, T.; Kang, W.; Antonyuk, K.; Dyachenko, V. V.; Rastegaev, D. A.; Beskakotov, A.; Mitrofanova, A. A.; Pozuelos, F. J.; Kuznetsov, E. D.; Popov, A.; Kiefer, F.; Wilson, P. A.; Ricker, G.; Vanderspek, R.; Latham, D. W.; Seager, S.; Jenkins, J. M.; Sokov, E.; Sokova, I; Marchini, A.; Papini, R.; Salvaggio, F.; Banfi, M.; Basturk, O.; Torun, S.; Yalcinkaya, S.; Ivanov, K.; Valyavin, G.; Jehin, E.; Gillon, M.; Pakstiene, E.; Hentunen, V-P; Shadick, S.; Bretton, M.; Wunsche, A.; Garlitz, J.; Jongen, Y.; Molina, D.; Girardin, E.; Horta, F. Grau; Naves, R.; Benkhaldoun, Z.; Joner, M. D.; Spencer, M.; Bieryla, A.; Stevens, D. J.; Jensen, E. L. N.; Collins, K. A.; Charbonneau, D.; Quintana, E., V; Mullally, S. E.; Henze, C. E.
通讯作者	Benni, P (corresponding author), Acton Sky Portal Private Observ, Acton, MA 01720 USA. ; Burdanov, AY (corresponding author), MIT, Dept Earth Atmospher & Planetary Sci, 77 Massachusetts Ave, Cambridge, MA 02139 USA. ; Burdanov, AY (corresponding author), Inst Astrofis Canarias, Via Lactea S-N, E-38205 Tenerife, Spain.
来源期刊	MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN	0035-8711
EISSN	1365-2966
出版年	2021
卷号	505 期号:4 页码:4956-4967
英文摘要	We announce the discovery of GPX-1 b, a transiting brown dwarf with a mass of 19.7 +/- 1.6 M-Jup and a radius of 1.47 +/- 0.10 R-Jup, the first substellar object discovered by the Galactic Plane eXoplanet (GPX) survey. The brown dwarf transits a moderately bright (V = 12.3 mag) fast-rotating F-type star with a projected rotational velocity v sin i(*) = 40 +/- 10 km s(-1). We use the isochrone placement algorithm to characterize the host star, which has effective temperature 7000 +/- 200 K, mass 1.68 +/- 0.10 M-circle dot, radius 1.56 +/- 0.10 R-circle dot, and approximate age 0.27(-0.15)(+0.09) Gyr. GPX-1 b has an orbital period of similar to 1.75 d and a transit depth of 0.90 +/- 0.03 per cent. We describe the GPX transit detection observations, subsequent photometric and speckle-interferometric follow-up observations, and SOPHIE spectroscopic measurements, which allowed us to establish the presence of a substellar object around the host star. GPX-1 was observed at 30-min integrations by TESS in Sector 18, but the data are affected by blending with a 3.4 mag brighter star 42 arcsec away. GPX-1 b is one of about two dozen transiting brown dwarfs known to date, with a mass close to the theoretical brown dwarf/gas giant planet mass transition boundary. Since GPX-1 is a moderately bright and fast-rotating star, it can be followed-up by the means of the Doppler tomography.
英文关键词	stars: brown dwarfs stars: individual: GPX-1 stars: rotation surveys: Astronomical Data bases Galaxy: disc
类型	Article
语种	英语
开放获取类型	Green Published, Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000698554000009
WOS关键词	EVOLUTIONARY MODELS ; SEARCH ; COMPANIONS ; DESERT ; CLUSTERS ; BINARY ; KEPLER ; K2
WOS类目	Astronomy & Astrophysics
WOS研究方向	Astronomy & Astrophysics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/364199
作者单位	[Benni, P.] Acton Sky Portal Private Observ, Acton, MA 01720 USA; [Burdanov, A. Y.; Seager, S.] MIT, Dept Earth Atmospher & Planetary Sci, 77 Massachusetts Ave, Cambridge, MA 02139 USA; [Burdanov, A. Y.] Inst Astrofis Canarias, Via Lactea S-N, E-38205 Tenerife, Spain; [Krushinsky, V. V.] Ural Fed Univ, Lab Astrochem Res, Mira St 19, Ekaterinburg 620002, Russia; [Bonfanti, A.] Austrian Acad Sci, Space Res Inst, Schmiedlstr 6, A-8042 Graz, Austria; [Bonfanti, A.; Pozuelos, F. J.; Jehin, E.] Univ Liege, Space Sci Technol & Astrophys Res STAR Inst, Allee 6 Aout 17, B-4000 Liege, Belgium; [Hebrard, G.; Dalal, S.; Kiefer, F.] Univ Paris 06, Inst Astrophys Paris, UMR7095 CNRS, 98bis Blvd Arago, F-75014 Paris, France; [Hebrard, G.] Univ Aix Marseille, Observ Haute Provence, CNRS, F-04870 St Michell Observatoire, France; [Almenara, J. M.] Univ Grenoble Alpes, IPAG, CNRS, F-38000 Grenoble, France; [Demangeon, O. D. S.] Univ Porto, Inst Astrofis & Ciencias Espaco, CAUP, Rua Estrelas, P-4150762 Porto, Portugal; [Tsan...
推荐引用方式 GB/T 7714	Benni, P.,Burdanov, A. Y.,Krushinsky, V. V.,et al. Discovery of a young low-mass brown dwarf transiting a fast-rotating F-type star by the Galactic Plane eXoplanet (GPX) survey[J],2021,505(4):4956-4967.
APA	Benni, P..,Burdanov, A. Y..,Krushinsky, V. V..,Bonfanti, A..,Hebrard, G..,...&Henze, C. E..(2021).Discovery of a young low-mass brown dwarf transiting a fast-rotating F-type star by the Galactic Plane eXoplanet (GPX) survey.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,505(4),4956-4967.
MLA	Benni, P.,et al."Discovery of a young low-mass brown dwarf transiting a fast-rotating F-type star by the Galactic Plane eXoplanet (GPX) survey".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 505.4(2021):4956-4967.