An Eccentric Massive Jupiter Orbiting a Subgiant on a 9.5-day Period Discovered in the Transiting Exoplanet Survey Satellite Full Frame Images

被引：45

作者：

Rodriguez, Joseph E. ^{[1
]}

Quinn, Samuel N. ^{[1
]}

Huang, Chelsea X. ^{[2
,3
]}

Vanderburg, Andrew ^{[4
]}

Penev, Kaloyan ^{[5
]}

Brahm, Rafael ^{[6
,7
,8
]}

Jordan, Andres ^{[7
,8
]}

Ikwut-Ukwa, Mma ^{[1
]}

Tsirulik, Shelly ^{[1
]}

Latham, David W. ^{[1
]}

Stassun, Keivan G. ^{[9
,10
]}

Shporer, Avi ^{[2
,3
]}

Ziegler, Carl ^{[11
]}

Matthews, Elisabeth ^{[2
,3
]}

Eastman, Jason D. ^{[1
]}

Gaudi, B. Scott ^{[12
]}

Collins, Karen A. ^{[1
]}

Guerrero, Natalia ^{[2
,3
]}

Relles, Howard M. ^{[1
]}

Barclay, Thomas ^{[13
,14
]}

Batalha, Natalie E. ^{[15
]}

Berlind, Perry ^{[1
]}

Bieryla, Allyson ^{[1
]}

Bouma, L. G. ^{[16
]}

Boyd, Patricia T. ^{[13
]}

Burt, Jennifer ^{[2
,3
]}

Calkins, Michael L. ^{[1
]}

Christiansen, Jessie ^{[17
]}

Ciardi, David R. ^{[17
]}

Colon, Knicole D. ^{[13
]}

Conti, Dennis M. ^{[18
]}

Crossfield, Ian J. M. ^{[2
,3
]}

Daylan, Tansu ^{[2
,3
]}

Dittmann, Jason ^{[2
,3
]}

Dragomir, Diana ^{[2
,3
]}

Dynes, Scott ^{[2
,3
]}

Espinoza, Nestor ^{[19
]}

Esquerdo, Gilbert A. ^{[1
]}

Essack, Zahra ^{[20
]}

Soto, Aylin Garcia ^{[20
]}

Glidden, Ana ^{[2
,3
,20
]}

Gunther, Maximilian N. ^{[2
,3
]}

Henning, Thomas ^{[19
]}

Jenkins, Jon M. ^{[21
]}

Kielkopf, John F. ^{[22
]}

Krishnamurthy, Akshata ^{[23
]}

Law, Nicholas M. ^{[24
]}

Levine, Alan M. ^{[2
,3
]}

Lewin, Pablo ^{[25
]}

Mann, Andrew W. ^{[24
]}

机构：

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

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

[3] MIT, Kavli Inst Astrophys & Space Res, 77 Massachusetts Ave, Cambridge, MA 02139 USA

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

[5] Univ Texas Dallas, Dept Phys, 800 West Campbell Rd, Richardson, TX 75080 USA

[6] Pontificia Univ Catolica Chile, Ctr Astroengn UC, Av Vicuna Mackenna 4860, Santiago 7820436, Chile

[7] Pontificia Univ Catolica Chile, Inst Astrofis, Av Vicuna Mackenna 4860, Santiago 7820436, Chile

[8] Millennium Inst Astrophys, Santiago, Chile

[9] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA

[10] Fisk Univ, Dept Phys, 1000 17th Ave North, Nashville, TN 37208 USA

[11] Univ Toronto, Dunlap Inst Astron & Astrophys, Toronto, ON M5S 3H4, Canada

[12] Ohio State Univ, Dept Astron, 140 West 18th Ave, Columbus, OH 43210 USA

[13] NASA, Exoplanets & Stellar Astrophys Lab, Goddard Space Flight Ctr, Code 667, Greenbelt, MD 20771 USA

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

[15] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA

[16] Princeton Univ, Dept Astrophys Sci, 4 Ivy Lane, Princeton, NJ 08544 USA

[17] Caltech IPAC NASA Exoplanet Sci Inst, 1200 E Calif Ave, Pasadena, CA 91125 USA

[18] Amer Assoc Variable Star Observers, 49 Bay State Rd, Cambridge, MA 02138 USA

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

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

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

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

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

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

[25] Maury Lewin Astron Observ, Glendora, CA 91741 USA

[26] SETI Inst, Mountain View, CA 94043 USA

[27] Lehigh Univ, Dept Phys, 16 Mem Dr East, Bethlehem, PA 18015 USA

[28] Open Univ, Sch Phys Sci, Milton Keynes MK7 6AA, Bucks, England

[29] Cerro Tololo Interamer Observ, Casilla 603, La Serena, Chile

来源：

ASTRONOMICAL JOURNAL | 2019年 / 157卷 / 05期

关键词：

planetary systems; planets and satellites: detection; stars: individual (TIC 29857954); HOT JUPITERS; PLANET; ACCRETION; EVOLUTION; MIGRATION; ABUNDANCE; BINARY; STARS; DWARF;

D O I：

10.3847/1538-3881/ab11d9

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report the discovery of TOI-172 b from the Transiting Exoplanet Survey Satellite (TESS) mission, a massive hot Jupiter transiting a slightly evolved G star with a 9.48-day orbital period. This is the first planet to be confirmed from analysis of only the TESS full frame images, because the host star was not chosen as a two-minute cadence target. From a global analysis of the TESS photometry and follow-up observations carried out by the TESS Followup Observing Program Working Group, TOI-172 (TIC 29857954) is a slightly evolved star with an effective temperature of T-eff = 5645 +/- 50 K, a mass of Ma(*) = 1.128(-0.061) (+0.065) M-circle dot, radius of R-* = 1.777(-0.044) (+0.047) R-circle dot, a surface gravity of log g(*) = 3.993(-0.028)(+0.027), and an age of 7.4(-1.5) (+1.6) Gyr Its planetary companion (TOI-172 b) has a radius of R-P = 0.965(-0.029) (+0.032) R-J, a mass of M-P = 5.42(-0).(20) (+0.22) M-J, and is on an eccentric orbit (e = 0.3806 (+0.0093)(-0.0090) TOI-172 b is one of the few known massive giant planets on a highly eccentric short-period orbit. Future study of the atmosphere of this planet and its system architecture offer opportunities to understand the formation and evolution of similar systems.

引用

页数：13

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