1 code implementation • 26 Feb 2018 • J. Prieto-Arranz, E. Palle, D. Gandolfi, O. Barragán, E. W. Guenther, F. Dai, M. Fridlund, T. Hirano, J. Livingston, P. Niraula, C. M. Persson, S. Redfield, S. Albrecht, R. Alonso, G. Antoniciello, J. Cabrera, W. D. Cochran, Sz. Csizmadia, H. Deeg, Ph. Eigmüller, M. Endl, A. Erikson, M. E. Everett, A. Fukui, S. Grziwa, A. P. Hatzes, D. Hidalgo, M. Hjorth, J. Korth, D. Lorenzo-Oliveira, F. Murgas, N. Narita, D. Nespral, G. Nowak, M. Pätzold, P. Montañés Rodríguez, H. Rauer, I. Ribas, A. M. S. Smith, V. Van Eylen, J. N. Winn
We also find that the planetary bulk compositions are compatible with a scenario where all three planets formed with similar core/atmosphere compositions, and we speculate that while GJ 9827 b and GJ 9827 c lost their atmospheric envelopes, GJ 9827 d maintained its atmosphere, owing to the much lower stellar irradiation.
Earth and Planetary Astrophysics
1 code implementation • 2 Feb 2017 • O. Barragán, D. Gandolfi, A. M. S. Smith, H. J. Deeg, M. C. V. Fridlund, C. M. Persson, P. Donati, M. Endl, Sz. Csizmadia, S. Grziwa, D. Nespral, A. P. Hatzes, W. D. Cochran, L. Fossati, S. S. Brems, J. Cabrera, F. Cusano, Ph. Eigmüller, C. Eiroa, A. Erikson, E. Guenther, J. Korth, D. Lorenzo-Oliveira, L. Mancini, M. Pätzold, J. Prieto-Arranz, H. Rauer, I. Rebollido, J. Saario, O. V. Zakhozhay
We announce the discovery of K2-139 b (EPIC 218916923 b), a transiting warm-Jupiter ($T_\mathrm{eq}$=547$\pm$25 K) on a 29-day orbit around an active (log $R^\prime_\mathrm{HK}$ = $-$4. 46 $\pm$ 0. 06) K0 V star in K2 Campaign 7.
Earth and Planetary Astrophysics Solar and Stellar Astrophysics