| Full text | |
| Author(s): Show less - |
Barragan, O.
[1]
;
Gandolfi, D.
[1]
;
Smith, A. M. S.
[2]
;
Deeg, H. J.
[3, 4]
;
Fridlund, M. C. V.
[5, 6]
;
Persson, C. M.
[5]
;
Donati, P.
[7]
;
Endl, M.
[8, 9]
;
Csizmadia, Sz.
[2]
;
Grziwa, S.
[10]
;
Nespral, D.
[3, 4]
;
Hatzes, A. P.
[11]
;
Cochran, W. D.
[8, 9]
;
Fossati, L.
[12]
;
Brems, S. S.
[13]
;
Cabrera, J.
[2]
;
Cusano, F.
[7]
;
Eigmuller, Ph.
[1]
;
Eiroa, C.
[14]
;
Erikson, A.
[2]
;
Guenther, E.
[11]
;
Korth, J.
[10]
;
Lorenzo-Oliveira, D.
[15]
;
Mancini, L.
[16, 17, 18]
;
Paetzold, M.
[10]
;
Prieto-Arranz, J.
[3, 4]
;
Rauer, H.
[2, 19]
;
Rebollido, I.
[14]
;
Saario, J.
[20]
;
Zakhozhay, O. V.
[16, 21]
Total Authors: 30
|
| Affiliation: Show less - | [1] Univ Torino, Dipartimento Fis, Via P Giuria 1, I-10125 Turin - Italy
[2] German Aerosp Ctr, Inst Planetary Res, Rutherfordstr 2, D-12489 Berlin - Germany
[3] Univ La Laguna, Dept Astrofis, E-38206 Tenerife - Spain
[4] Inst Astrofis Canarias, E-38205 Tenerife - Spain
[5] Chalmers Univ Technol, Onsala Space Observ, Dept Earth & Space Sci, SE-43992 Onsala - Sweden
[6] Leiden Univ, Leiden Observ, POB 9513, NL-2300 RA Leiden - Netherlands
[7] INAF Osservatorio Astron Bologna, Via Ranzani 1, I-20127 Bologna - Italy
[8] Univ Texas Austin, Dept Astron, 2515 Speedway, Stop C1400, Austin, TX 78712 - USA
[9] Univ Texas Austin, McDonald Observ, 2515 Speedway, Stop C1400, Austin, TX 78712 - USA
[10] Univ Cologne, Rhein Inst Umweltforsch, Aachener Str 209, D-50931 Cologne - Germany
[11] Thuringer Landessternwarte Tautenburg, Sternwarte 5, D-07778 Tautenburg - Germany
[12] Austrian Acad Sci, Space Res Inst, A-8041 Graz - Austria
[13] Heidelberg Univ, Zentrum Astron, Landessternwarte, Konigstuhl 12, D-69117 Heidelberg - Germany
[14] Univ Autonoma Madrid, Dept Fis Teor, E-28049 Madrid - Spain
[15] Univ Sao Paulo, Dept Astron IAG USP, Rua Matao 1226, Cidade Univ, BR-05508900 Sao Paulo, SP - Brazil
[16] Max Planck Inst Astron, Konigstuhl 17, D-69117 Heidelberg - Germany
[17] Univ Roma Tor Vergata, Dept Phys, I-00173 Rome - Italy
[18] INAF Astrophys Observ Turin, I-10025 Turin - Italy
[19] TU Berlin, Ctr Astron & Astrophys, Hardenbergstr 36, D-10623 Berlin - Germany
[20] Nord Opt Telescope, Apartado 474, E-38700 Santa Cruz De La Palma - Spain
[21] Natl Acad Sci Ukraine, Main Astron Observ, 27 Akad Zabolotnoho St, UA-03143 Kiev - Ukraine
Total Affiliations: 21
|
| Document type: | Journal article |
| Source: | Monthly Notices of the Royal Astronomical Society; v. 475, n. 2, p. 1765-1776, APR 2018. |
| Web of Science Citations: | 6 |
| Abstract | |
We announce the discovery of K2-139 b (EPIC 218916923 b), a transiting warm- Jupiter (T-eq = 547 +/- 25 K) on a 29-d orbit around an active (log R'(HK)= -4.46 +/- 0.06) K0V star in K2 Campaign 7. We derive the system's parameters by combining the K2 photometry with ground-based follow-up observations. With a mass of 0.387(-0.075)(+0.083) M-J and radius of 0.808(-0.033)(+0.034) R-J, K2-139 b is one of the transiting warm Jupiters with the lowest mass known to date. The planetary mean density of 0.91(-0.20)(+0.24) g cm(-3) can be explained with a core of similar to 50M circle dot. Given the brightness of the host star (V = 11.653 mag), the relatively short transit duration (similar to 5 h), and the expected amplitude of the Rossiter-McLaughlin effect (similar to 25m s(-1)), K2-139 is an ideal target to measure the spin-orbit angle of a planetary system hosting a warm Jupiter. (AU) | |
| FAPESP's process: | 16/20667-8 - Stellar chronometers: the relation between age, chromospheric activity, rotation and lithium abundances in solar-type stars |
| Grantee: | Diego Lorenzo de Oliveira |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |