| Name: | Arkaprova Dutta |
| Affiliation: | Indian Institute of Science Education and Research Kolkata |
| Conference ID: | ASI2025_31 |
| Title: | Exoplanets Around Sub-Giant Stars |
| Authors: | Arkaprova Dutta 1, Priyanka Chaturvedi 2 |
| Authors Affiliation: | 1. Indian Institute of Science Education and Research Kolkata, Mohanpur-741246, India
2. TATA Institute of Fundamental Research Mumbai, Mumbai-400005, India |
| Mode of Presentation: | Poster |
| Abstract Category: | Sun, Solar System, Exoplanets, and Astrobiology |
| Abstract: | Evolved stars, particularly sub-giants, have been underrepresented in most planet search surveys, which traditionally focus on solar-type main-sequence stars. The quest for exoplanets around sub-giant stars offers crucial insights into planet formation and evolution in the context of evolved stellar environments. This study comprehensively reviews well-studied exoplanets around sub-giant stars, emphasizing their detection methods, orbital properties, and atmospheric characterization and compares them with well-studied properties of exoplanets around the main sequence stars.
We also discuss the broader implications of our findings for understanding exoplanet frequency and migration mechanisms across different spectral types. This work lays the groundwork for our long-term planet search project, wherein we curate a candidate list for potentially suitable stars to host planets using homogeneous properties from the GAIA DR3 catalogue to follow up using high-resolution spectroscopy aimed at detecting new exoplanets around sub-giant stars (including the stars in the list with limited or no high-precision radial velocity measurements) and modelling their orbits. We anticipate that the outcomes of this research will significantly contribute to the growing body of knowledge regarding planetary systems and their formation histories. |
