N. Morales

RedDots: Limits on habitable and undetected planets orbiting nearby stars GJ 832, GJ 674, and Ross 128

F. Liebing, S. V. Jeffers, P. Gorrini, Arthur Haswell et autres

Context. The nearby (d < 5 pc) M dwarfs GJ 832, GJ 674, and Ross 128 each host a single exoplanet, with Ross 128 b located within the optimistic habitable zone. Due to their low mass and close proximity, these three systems …

de, gb, es, it, il (code pays fourni par la source)

RedDots: Limits on habitable and undetected planets orbiting nearby stars GJ 832, GJ 674, and Ross 128

F. Liebing, S. V. Jeffers, P. Gorrini, Carole A. Haswell et autres

Aims. Using HARPS spectroscopic data obtained by the RedDots campaign, as well as archival data from HARPS and CARMENES, supplemented with ASH2 and T90 photometry, we aim to search for additional planets around the three M dwarfs GJ 832, GJ 674, and …

Detailed stellar activity analysis and modelling of GJ 832: Reassessment of the putative habitable zone planet GJ 832c

P. Gorrini, N. Astudillo-Defru, Stefan Dreizler, M. Damasso et autres

Context. Gliese 832 (GJ 832) is an M2V star hosting a massive planet on a decade-long orbit, GJ 832b, discovered by radial velocity (RV). Later, a super Earth or mini-Neptune orbiting within the stellar habitable zone was reported (GJ 832c). The recently …

cl, de, it, ar, fr, gb, es, ro, ca, ch, us, pt, il (code pays fourni par la source)

The CARMENES search for exoplanets around M dwarfs

S. Stock, J. Kemmer, S. Reffert, Trifon Trifonov et autres

Context. The nearby ultra-compact multiplanetary system YZ Ceti consists of at least three planets, and a fourth tentative signal. The orbital period of each planet is the subject of discussion in the literature due to strong aliasing in the radial velocity data. …

de, es, gb, cl, ch, hk (code pays fourni par la source)