干旱区生态环境知识资源中心(Arid): TESS Reveals a Short-period Sub-Neptune Sibling (HD 86226c) to a Known Long-period Giant Planet

Arid

DOI	10.3847/1538-3881/ab9f95
	TESS Reveals a Short-period Sub-Neptune Sibling (HD 86226c) to a Known Long-period Giant Planet
	Teske, Johanna; Diaz, Matias R.; Luque, Rafael; Mocnik, Teo; Seidel, Julia, V; Otegi, Jon Fernandez; Feng, Fabo; Jenkins, James S.; Palle, Enric; Segransan, Damien; Udry, Stephane; Collins, Karen A.; Eastman, Jason D.; Ricker, George R.; Vanderspek, Roland; Latham, David W.; Seager, Sara; Winn, Joshua N.; Jenkins, Jon M.; Anderson, David R.; Barclay, Thomas; Bouchy, Francois; Burt, Jennifer A.; Butler, R. Paul; Caldwell, Douglas A.; Collins, Kevin, I; Crane, Jeffrey D.; Dorn, Caroline; Flowers, Erin; Haldemann, Jonas; Helled, Ravit; Hellier, Coel; Jensen, Eric L. N.; Kane, Stephen R.; Law, Nicholas; Lissauer, Jack J.; Mann, Andrew W.; Marmier, Maxime; Nielsen, Louise Dyregaard; Rose, Mark E.; Shectman, Stephen A.; Shporer, Avi; Torres, Guillermo; Wang, Sharon X.; Wolfgang, Angie; Wong, Ian; Ziegler, Carl
通讯作者	Teske, J
来源期刊	ASTRONOMICAL JOURNAL
ISSN	0004-6256
EISSN	1538-3881
出版年	2020
卷号	160 期号:2
英文摘要	The Transiting Exoplanet Survey Satellite mission was designed to find transiting planets around bright, nearby stars. Here, we present the detection and mass measurement of a small, short-period (4 days) transiting planet around the bright (V = 7.9), solar-type star HD 86226 (TOI-652, TIC 22221375), previously known to host a long-period (similar to 1600 days) giant planet. HD 86226c (TOI-652.01) has a radius of 2.16 0.08 R-circle plus and a mass of M-circle plus, based on archival and new radial velocity data. We also update the parameters of the longer-period, not-known-to-transit planet, and find it to be less eccentric and less massive than previously reported. The density of the transiting planet is 3.97 g cm(-3), which is low enough to suggest that the planet has at least a small volatile envelope, but the mass fractions of rock, iron, and water are not well-constrained. Given the host star brightness, planet period, and location of the planet near both the "radius gap" and the "hot Neptune desert," HD 86226c is an interesting candidate for transmission spectroscopy to further refine its composition.
类型	Article
语种	英语
开放获取类型	Green Accepted
收录类别	SCI-E
WOS记录号	WOS:000558931700001
WOS关键词	GENEVA-COPENHAGEN SURVEY ; EQUATION-OF-STATE ; SOLAR NEIGHBORHOOD ; ERROR-CORRECTION ; SUPER-EARTHS ; K-STAR ; EXOPLANET ; SEARCH ; RADIUS ; METALLICITY
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/2XILL650/325585
作者单位	[Teske, Johanna; Crane, Jeffrey D.; Shectman, Stephen A.; Wang, Sharon X.] Carnegie Inst Sci, The Observatories, 813 Santa Barbara St, Pasadena, CA 91101 USA; [Diaz, Matias R.; Jenkins, James S.] Univ Chile, Dept Astron, Camino Observ 1515, Santiago, Chile; [Luque, Rafael; Palle, Enric] Inst Astrofis Canarias IAC, E-38205 Tenerife, Spain; [Luque, Rafael; Palle, Enric] Univ La Laguna ULL, Dept Astrofis, E-38206 Tenerife, Spain; [Mocnik, Teo; Kane, Stephen R.] UC Riverside, Dept Earth & Planetary Sci, 900 Univ Ave, Riverside, CA 92521 USA; [Seidel, Julia, V; Otegi, Jon Fernandez; Marmier, Maxime; Nielsen, Louise Dyregaard] Observ Univ Geneve, 51 Chemin Maillettes, CH-1290 Versoix, Switzerland; [Otegi, Jon Fernandez; Dorn, Caroline; Helled, Ravit] Univ Zurich, Inst Computat Sci, Winterthurerstr 190, CH-8057 Zurich, Switzerland; [Feng, Fabo; Butler, R. Paul] Carnegie Inst Sci, Earth & Planets Lab, 5241 Broad Branch Rd NW, Washington, DC 20015 USA; [Segransan, Damien; Udry, Stephane; Bouchy, Francois] Univ Gen...
推荐引用方式 GB/T 7714	Teske, Johanna,Diaz, Matias R.,Luque, Rafael,et al. TESS Reveals a Short-period Sub-Neptune Sibling (HD 86226c) to a Known Long-period Giant Planet[J],2020,160(2).
APA	Teske, Johanna.,Diaz, Matias R..,Luque, Rafael.,Mocnik, Teo.,Seidel, Julia, V.,...&Ziegler, Carl.(2020).TESS Reveals a Short-period Sub-Neptune Sibling (HD 86226c) to a Known Long-period Giant Planet.ASTRONOMICAL JOURNAL,160(2).
MLA	Teske, Johanna,et al."TESS Reveals a Short-period Sub-Neptune Sibling (HD 86226c) to a Known Long-period Giant Planet".ASTRONOMICAL JOURNAL 160.2(2020).