TESS Spots a Hot Jupiter with an Inner Transiting Neptune

被引：52

作者：

Huang, Chelsea X. ^{[1
,2
]}

Quinn, Samuel N. ^{[3
]}

Vanderburg, Andrew ^{[4
]}

Becker, Juliette ^{[5
,6
]}

Rodriguez, Joseph E. ^{[3
]}

Pozuelos, Francisco J. ^{[6
,7
]}

Gandolfi, Davide ^{[8
]}

Zhou, George ^{[9
]}

Mann, Andrew W. ^{[9
]}

Collins, Karen A. ^{[11
]}

Crossfield, Ian ^{[10
]}

Barkaoui, Khalid ^{[11
]}

Collins, Kevin I. ^{[12
]}

Fridlund, Malcolm ^{[13
,22
]}

Gillon, Michael ^{[7
]}

Gonzales, Erica J. ^{[14
]}

Guenther, Maximilian N. ^{[1
,33
]}

Henry, Todd J. ^{[23
]}

Howell, Steve B. ^{[24
,26
]}

James, Hodari-Sadiki ^{[26
]}

Jao, Wei-Chun ^{[26
]}

Jehin, Emmanuel ^{[6
]}

Jensen, Eric L. N. ^{[27
]}

Kane, Stephen R. ^{[28
]}

Lissauer, Jack J. ^{[24
]}

Matthews, Elisabeth ^{[1
]}

Matson, Rachel A. ^{[16
]}

Paredes, Leonardo A. ^{[26
]}

Schlieder, Joshua E. ^{[18
]}

Stassun, Keivan G. ^{[29
,30
]}

Shporer, Avi ^{[1
]}

Sha, Lizhou ^{[1
]}

Tan, Thiam-Guan ^{[31
]}

Georgieva, Iskra ^{[13
]}

Mathur, Savita ^{[21
]}

Palle, Enric ^{[32
]}

Persson, Carina M. ^{[13
]}

Eylen, Vincent Van ^{[33
]}

Ricker, George R. ^{[1
]}

Vanderspek, Roland K. ^{[1
]}

Latham, David W. ^{[2
]}

Winn, Joshua N. ^{[25
]}

Seager, S. ^{[15
,17
]}

Jenkins, Jon M. ^{[19
]}

Burke, Christopher J. ^{[20
]}

Goeke, Robert F. ^{[1
]}

Rinehart, Stephen ^{[18
]}

Rose, Mark E. ^{[19
]}

Ting, Eric B. ^{[19
]}

Torres, Guillermo ^{[2
]}

机构：

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

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

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

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

[5] CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA

[6] Univ Liege, STAR Inst, 19C Allee 6 Aout, B-4000 Liege, Belgium

[7] Univ Liege, Astrobiol Res Unit, 19C Allee 6 Aout, B-4000 Liege, Belgium

[8] Univ Studi Torino, Dipartimento Fis, Via Pietro Giuria 1, I-10125 Turin, Italy

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

[10] Cadi Ayyad Univ, High Energy Phys & Astrophys Lab, Oukaimeden Observ, Marrakech, Morocco

[11] George Mason Univ, 4400 Univ Dr, Fairfax, VA 22030 USA

[12] George Mason Univ, 4400 Univ Dr, Fairfax, VA 22030 USA

[13] Chalmers Univ Technol, Onsala Space Observ, Dept Space Earth & Environm, SE-43992 Onsala, Sweden

[14] Univ Calif Santa Cruz, Dept Astron & Astrophys, 1156 High St, Santa Cruz, CA 95064 USA

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

[16] US Naval Observ, Washington, DC 20392 USA

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

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

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

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

[21] Inst Astrofis Canarias, C Via Lactea S-N, E-38205 La Laguna Santa Cruz de, Spain

[22] Leiden Univ, Leiden Observ, Leiden, Netherlands

[23] RECONS Inst, Chambersburg, PA 17201 USA

[24] NASA Ames Res Ctr, Space Sci Astrobiol Div, Moffett Field, CA 94035 USA

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

[26] Georgia State Univ, Atlanta, GA 30302 USA

[27] Swarthmore Coll, Dept Phys Astron, Swarthmore, PA 19081 USA

[28] Unv Calif Riverside, Dept Earth & Planetary Sci, Riverside, CA 92521 USA

[29] Fisk Univ, Dept Phys, 1000 18th Ave N, Nashville, TN 37208 USA

[30] Fisk Univ, Dept Phys, 1000 18th Ave N, Nashville, TN 37208 USA

[31] Perth Exoplanet Survey Telescope, Perth, WA, Australia

[32] Inst Astrofis Canarias, Via Lactea sn, E-38200 San Cristobal la Laguna, Spain

[33] UCL, Dept Space & Climate Phys, Mullard Space Sci Lab, London, England

来源：

ASTROPHYSICAL JOURNAL LETTERS | 2020年 / 892卷 / 01期

基金：

瑞士国家科学基金会; 欧洲研究理事会;

关键词：

CATALOG; STARS;

D O I：

10.3847/2041-8213/ab7302

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Hot Jupiters are rarely accompanied by other planets within a factor of a few in orbital distance. Previously, only two such systems have been found. Here, we report the discovery of a third system using data from the Transiting Exoplanet Survey Satellite (TESS). The host star, TOI-1130, is an eleventh magnitude K-dwarf in Gaia G-band. It has two transiting planets: a Neptune-sized planet (3.65 +/- 0.10 R-circle plus) with a 4.1 days period, and a hot Jupiter (1.50(-0.22)(+0.27) R-J) with an 8.4 days period. Precise radial-velocity observations show that the mass of the hot Jupiter is 0.974(-0.044)(+0.043) M-J. For the inner Neptune, the data provide only an upper limit on the mass of 0.17M(J).(3 sigma). Nevertheless, we are confident that the inner planet is real, based on follow-up ground-based photometry and adaptive-optics imaging that rule out other plausible sources of the TESS transit signal. The unusual planetary architecture of and the brightness of the host star make TOI-1130 a good test case for planet formation theories, and an attractive target for future spectroscopic observations.

引用

页数：9

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