New HARPS and FEROS Observations of GJ 1046

Trifon Trifonov,M. Kürster,Sabine Reffert,M. Zechmeister,Michael Endl,Florian Rodler,Davide Gandolfi,O. Barragán,Thomas Henning,Man Hoi Lee,Olga V. Zakhozhay,P. Sarkis,Paul Heeren, Marcelo Tala,Vera Wolthoff,Stefan S. Brems,Stephan Stock, Angela Hempel,Diana Kossakowski

arXiv: Earth and Planetary Astrophysics（2018）

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摘要

In this paper we present new precise Doppler data of GJ1046 taken between November 2005 and July 2018 with the HARPS and the FEROS high-resolution spectographs. In addition, we provide a new stellar mass estimate of GJ1046 and we update the orbital parameters of the GJ1046 system. These new data and analysis could be used together with the GAIA epoch astrometry, when available, for braking the $sin i$ degeneracy and revealing the true mass of the GJ1046 system.

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