2012/06/18 by F. Rodler, Florian Rodler, Mercedes López‐Morales +3 · 3 citations
Physics and Astronomy · #Astro and Planetary Science #Astrophysics and Star Formation Studies #Stellar, planetary, and galactic studies #astro-ph.EP #astro-ph.SR
paper · pdf · doi:10.1088/2041-8205/753/1/l25
published as 2012, ApJ, 753, 25 · ApJ Letters, accepted; to appear on July 1st, 2012
openalex publication_date 2012/06/18 · arxiv created 2012/06/27 · arxiv updated 2012/06/28 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/01
We report the detection of the orbital velocity of non-transiting hot Jupiter τ Boo b. By employing high-resolution ground-based spectroscopy around 2.3 μm during one half-night, we are able to detect carbon monoxide absorption lines produced in the planet atmosphere, which shift significantly in wavelength during the course of the observations due to the orbital motion of the planet. This detection of the planetary signal results in the determination of the orbital inclination as being i = 47 +7 − 6 deg and, furthermore, allows us to solve for the exact planetary mass, m p = 5.6 ± 0.7 M Jup . This clearly confirms the planetary nature of the non-transiting companion to τ Boo.