Retired A Stars and Their Companions: Eighteen New Jovian Planets

Дата и время публикации : 2011-08-21T20:00:02Z

Авторы публикации и институты :
John Asher Johnson
Christian Clanton
Andrew W. Howard
Brendan P. Bowler
Gregory W. Henry
Geoffrey W. Marcy
Justin R. Crepp
Michael Endl
William D. Cochran
Phillip J. MacQueen
Jason T. Wright
Howard Isaacson

Ссылка на журнал-издание: Ссылка на журнал-издание не найдена
Коментарии к cтатье: ApJS accepted. The rotate command prevented proper compilation. As a result Tables 19 and 21 do not fit onto the page, causing the final columns (S_HK, Nobs, respectively) to be omitted
Первичная категория: astro-ph.EP

Все категории : astro-ph.EP, astro-ph.SR

Краткий обзор статьи: We report the detection of eighteen Jovian planets discovered as part of our Doppler survey of subgiant stars at Keck Observatory, with follow-up Doppler and photometric observations made at McDonald and Fairborn Observatories, respectively. The host stars have masses 0.927 < Mstar /Msun < 1.95, radii 2.5 < Rstar/Rsun < 8.7, and metallicities -0.46 < [Fe/H] < +0.30. The planets have minimum masses 0.9 MJup < MP sin i <3 MJup and semima jor axes a > 0.76 AU. These detections represent a 50% increase in the number of planets known to orbit stars more massive than 1.5 Msun and provide valuable additional information about the properties of planets around stars more massive thantheSun.

Category: Physics