Planetary companions to sdB stars
Roberto Silvotti, Roy H. Ostensen, John H. Telting, Christophe, Lovis
TL;DR
This paper reviews recent discoveries of planetary companions to sdB stars, discusses detection methods, and presents preliminary results using high-precision radial velocity measurements to understand sdB star formation.
Contribution
It provides a comprehensive review of recent planetary detections around sdB stars and introduces new high-precision radial velocity data from Harps-N.
Findings
Detection of planets orbiting sdB stars in recent years
Use of Harps-N achieves unprecedented radial velocity accuracy
Preliminary results support the presence of sub-stellar companions
Abstract
The formation of single sdB stars is an unresolved issue and the presence of close sub-stellar companions could explain the stellar envelope ejection near the tip of the RGB, that is needed to form an sdB star. In the last 6 years the first planets orbiting sdB stars were detected using different methods. In this article we discuss these recent discoveries, review the different detection methods used, and present some preliminary results obtained with Harps-N, which allows to reach an unprecedented accuracy in radial velocity measurements.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsStellar, planetary, and galactic studies · Astronomy and Astrophysical Research · Astronomical Observations and Instrumentation