| Name: | Raghav Narasimha |
| Affiliation: | Indian Institute of Astrophysics |
| Conference ID : | ASI2024_593 |
| Title : | Unusual Light Curves of Hot Stellar Objects in the Vicinity of M22 |
| Authors : | Raghav Narasimha, Margarita Safonova, Sarang Shah, Priya Hasan |
| Authors Affiliation: | Raghav Narasimha, Margarita Safonova, Sarang Shah (Indian Institute of Astrophysics, Bangalore - 560034, India),
Priya Hasan (Maulana Azad National Urdu University, Hyderabad - 500032, India) |
| Mode of Presentation: | Poster |
| Abstract Category : | Stars, Interstellar Medium, and Astrochemistry in Milky Way |
| Abstract : | M22, a globular cluster (GC) located in the constellation Sagittarius, is one of the brightest and closest GCs at a distance of 3.31 kpc from Earth. Despite being a low-density GC, M22 has been intensively studied for various objects, such as white dwarfs, black holes, exoplanets, etc. We performed a population study of the sources in and around this globular cluster using Gaia DR3 data of objects within a 32' radius of M22. After plotting the HRD, we discovered approximately 15 objects exhibiting temperatures exceeding 25,000 K. 13 of these objects have 2 sources within 1". Analysis of the Zwicky Transient Facility (ZTF) light curves for these objects unveiled notable dips, indicative of eclipses. The primary objective of this study is to investigate the characteristics of these objects and to explain the light curve dips.
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