Red giants from the Pennsylvania - Torun Planet Search
P. Zieli\'nski (1), A. Niedzielski (1), M. Adam\'ow (1), A., Wolszczan (2, 3) ((1) Toru\'n Centre for Astronomy, (2) Department for, Astronomy, Astrophysics, PennState University, (3) Center for Exoplanets, and Habitable Worlds, PennState University)
TL;DR
This paper presents a spectroscopic analysis of red giant stars in the Pennsylvania-Torun Planet Search, aiming to accurately determine their atmospheric parameters for planet detection around evolved stars.
Contribution
It provides a reliable spectroscopic method for determining stellar parameters of red giants, enhancing the characterization of targets in planet search surveys.
Findings
Spectroscopic approach yields consistent stellar parameters.
Analysis of Fe I and Fe II lines effective for red giants.
Results support accurate stellar characterization for planet detection.
Abstract
The main goal of the Pennsylvania - Torun Planet Search (PTPS) is detection and characterization of planets around evolved stars using the high-accuracy radial velocity (RV) technique. The project is performed with the 9.2 m Hobby-Eberly Telescope. To determine stellar parameters and evolutionary status for targets observed within the survey complete spectral analysis of all objects is required. In this paper we present the atmospheric parameters (effective temperatures, surface gravities, microturbulent velocities and metallicities) of a subsample of Red Giant Clump stars using strictly spectroscopic methods based on analysis of equivalent widths of Fe I and Fe II lines. It is shown that our spectroscopic approach brings reliable and consistent results.
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.