| Authors Affiliation: | 1. Varghese Reji, Joe Ninan Department of Astronomy and Astrophysics, Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai 400005,
India
2. Shubham Kanodia Earth and Planets Laboratory, Carnegie Institution for Science, 5241 Broad Branch Road, NW, Washington, DC 20015, USA
3. Shubham Kanodia, Jessica E. Libby-Roberts, Caleb I. Cañas, Suvrath Mahadevan Department of Astronomy & Astrophysics, 525 Davey Laboratory, The Pennsylvania State University, University Park, PA 16802, USA
4. Shubham Kanodia, Jessica E. Libby-Roberts, Caleb I. Cañas, Suvrath Mahadevan Center for Exoplanets and Habitable Worlds, 525 Davey Laboratory, The Pennsylvania State University, University Park, PA 16802, USA
5. Suvrath Mahadevan ETH Zurich, Institute for Particle Physics & Astrophysics, Switzerland
6. Caleb I. Cañas NASA Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
7. Caleb I. Cañas NASA Postdoctoral Program Fellow. |
| Abstract : | According to our current understanding of planet formation, since the protoplanetary disc mass around proto-M-dwarf stars is small, it is difficult to form giant planets around M-dwarf stars. The discovery and detection of these extreme planets provide the tightest constraints to the efficiency of planet formation models. Under the umbrella of GEMS (Giant Exoplanets around M dwarf stars) collaboration, we identify potential giant planet candidates from the TESS (Transiting Exoplanet Survey Satellite) dataset and conduct ground-based photometry follow-ups with RBO, APO, etc. and extreme precision radial velocity measurements using the Habitable Zone Planet Finder (HPF), NEID and Planet Finding Spectrograph(PFS)s. This program has already significantly increased the number of GEMS available in the literature, providing insights into the mass budget of protoplanetary discs to form giant planets around M dwarf stars and formation pathways of GEMS in protostellar phase. In this poster, we will specifically focus on one of our latest GEMS discoveries of a Saturn around an M-dwarf star. I will present our simultaneous Bayesian modelling of large photometry data (both TESS and ground-based follow-ups) along with HPF radial velocity measurements.
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