TOI-677b: A Warm Jupiter (P=11.2 days) on an Eccentric Orbit Transiting a Late F-type Star

被引：36

作者：

Jordan, Andres ^{[1
,2
]}

Brahm, Rafael ^{[2
,3
,4
]}

Espinoza, Nestor ^{[5
]}

Henning, Thomas ^{[6
]}

Jones, Matias I. ^{[7
]}

Kossakowski, Diana ^{[6
]}

Sarkis, Paula ^{[6
]}

Trifonov, Trifon ^{[6
]}

Rojas, Felipe ^{[2
,4
]}

Torres, Pascal ^{[2
,4
]}

Drass, Holger ^{[3
]}

Nandakumar, Sangeetha ^{[8
]}

Barbieri, Mauro ^{[8
]}

Davis, Allen ^{[9
]}

Wang, Songhu ^{[9
]}

Bayliss, Daniel ^{[10
]}

Bouma, Luke ^{[11
]}

Dragomir, Diana ^{[12
]}

Eastman, Jason D. ^{[13
]}

Daylan, Tansu ^{[14
,15
]}

Guerrero, Natalia ^{[14
,15
]}

Barclay, Thomas ^{[16
,17
]}

Ting, Eric B. ^{[18
]}

Henze, Christopher E. ^{[18
]}

Ricker, George ^{[14
,15
]}

Vanderspek, Roland ^{[14
,15
]}

Latham, David W. ^{[13
]}

Seager, Sara ^{[14
,19
,20
]}

Winn, Joshua ^{[11
]}

Jenkins, Jon M. ^{[18
]}

Wittenmyer, Robert A. ^{[21
]}

Bowler, Brendan P. ^{[22
]}

Crossfield, Ian ^{[23
]}

Horner, Jonathan ^{[21
]}

Kane, Stephen R. ^{[24
]}

Kielkopf, John F. ^{[25
]}

Morton, Timothy D. ^{[26
]}

Plavchan, Peter ^{[27
]}

Tinney, C. G. ^{[28
]}

Addison, Brett ^{[21
]}

Mengel, Matthew W. ^{[21
]}

Okumura, Jack ^{[21
]}

Shahaf, Sahar ^{[29
]}

Mazeh, Tsevi ^{[29
]}

Rabus, Markus ^{[30
,31
]}

Shporer, Avi ^{[14
,15
]}

Ziegler, Carl ^{[32
]}

Mann, Andrew W. ^{[33
]}

Hart, Rhodes ^{[21
]}

机构：

[1] Univ Adolfo Ibanez, Fac Ingn & Ciencias, Ave Diagonal Torres 2640, Santiago, Chile

[2] Millennium Inst Astrophys, Vina Del Mar, Chile

[3] Pontificia Univ Catolica Chile, Ctr Astroengn UC, Ave Vicuna Mackenna 4860, 7820436 Santiago, Chile

[4] Pontificia Univ Catolica Chile, Inst Astrofis, Ave Vicuna Mackenna 4860, Santiago, Chile

[5] Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA

[6] Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg, Germany

[7] European Southern Observ, Alonso de Cordova 3107,Casilla 19001, Santiago, Chile

[8] Univ Atacama, INCT, Calle Copayapu 485, Copiapo, Atacama, Chile

[9] Yale Univ, Dept Astron, New Haven, CT 06511 USA

[10] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England

[11] Princeton Univ, Dept Astrophys Sci, 4 Ivy Lane, Princeton, NJ 08540 USA

[12] Univ New Mexico, Dept Phys & Astron, 1919 Lomas Blvd NE, Albuquerque, NM 87131 USA

[13] Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA

[14] MIT, Dept Phys, Cambridge, MA 02139 USA

[15] MIT, Kavli Inst Astrophys & Space Res, Cambridge, MA 02139 USA

[16] NASA, Goddard Space Flight Ctr, 8800 Greenbelt Rd, Greenbelt, MD 20771 USA

[17] Univ Maryland Baltimore Cty, 1000 Hilltop Circle, Baltimore, MD 21250 USA

[18] NASA, Ames Res Ctr, Moffett Field, CA 94035 USA

[19] MIT, Dept Earth Atmospher & Planetary Sci, Cambridge, MA 02139 USA

[20] MIT, Dept Aeronaut & Astronaut, 77 Massachusetts Ave, Cambridge, MA 02139 USA

[21] Univ Southern Queensland, Ctr Astrophys, West St, Toowoomba, Qld 4350, Australia

[22] Univ Texas Austin, Dept Astron, RLM 15308, Austin, TX 78712 USA

[23] MIT, Dept Phys, Cambridge, MA 02139 USA

[24] Univ Calif Riverside, Dept Earth & Planetary Sci, Riverside, CA 92521 USA

[25] Univ Louisville, Dept Phys & Astron, Louisville, KY 40292 USA

[26] Univ Florida, Dept Astron, Bryant Space Sci Ctr 211, Gainesville, FL 32611 USA

[27] George Mason Univ, Dept Phys & Astron, 4400 Univ Dr MS 3F3, Fairfax, VA 22030 USA

[28] UNSW Sydney, Sch Phys, Exoplanetary Sci, Sydney, NSW 2052, Australia

[29] Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel

[30] Las Cumbres Observ Global Telescope Network, Santa Barbara, CA 93117 USA

[31] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

[32] Univ Toronto, Dunlap Inst Astron & Astrophys, 50 St George St, Toronto, ON M5S 3H4, Canada

[33] Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC 27599 USA

来源：

ASTRONOMICAL JOURNAL | 2020年 / 159卷 / 04期

基金：

澳大利亚研究理事会;

关键词：

Exoplanets; Extrasolar gas giants; Exoplanet astronomy; Transit photometry; Radial velocity; Planet hosting stars; STELLAR; SYSTEMS; TOOL;

D O I：

10.3847/1538-3881/ab6f67

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report the discovery of TOI-677.b, first identified as a candidate in light curves obtained within Sectors 9 and 10 of the Transiting Exoplanet Survey Satellite (TESS) mission and confirmed with radial velocities. TOI-677.b has a mass of M-p = 1.236(-0.067)(+0.069) M-J, a radius of R-P = 1.170 +/- 0.03 R-J, and orbits its bright host star (V=.9.8 mag) with an orbital period of 11.23660 +/- 0.00011 d, on an eccentric orbit with e = 0.435 +/- 0.024. The host star has a mass of M-star = 1.181 +/- 0.058 M-circle dot, a radius of R. = 1.28(-0.03)(+0.03) R-circle dot, an age of 2.92(-0.73)(+0.80) Gyr and solar metallicity, properties consistent with a main-sequence late-F star with T-eff = 6295 +/- 77 K. We find evidence in the radial velocity measurements of a secondary long-term signal, which could be due to an outer companion. The TOI-677.b system is a well-suited target for Rossiter-Mclaughlin observations that can constrain migration mechanisms of close-in giant planets.

引用

页数：10

共 33 条

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