Extrasolar planets and brown dwarfs around A-F type stars. II. A planet found with ELODIE around the F6V star HD 33564

TL;DR

This paper reports the detection of a planetary companion around the F6V star HD 33564 using radial velocity measurements from the ELODIE spectrograph, revealing a 388-day orbit and a minimum mass of 9.1 Jupiter masses.

Contribution

First detection of a planet around an F6V star using ELODIE, demonstrating the instrument's capability for exoplanet discovery around A-F type stars.

Findings

Planet orbiting HD 33564 with a 388-day period

Minimum mass of the companion is 9.1 Jupiter masses

Radial velocity method effectively detects planets around F-type stars

Abstract

We present here the detection of a planet orbiting around the F6V star HD 33564. The radial velocity measurements, obtained with the ELODIE echelle spectrograph at the Haute-Provence Observatory, show a variation with a period of 388 days. Assuming a primary mass of 1.25 Mo, the best Keplerian fit to the data leads to a minimum mass of 9.1 MJup for the companion.