| Name: | Sayantan Bhattacharya |
| Affiliation: | University Of Massachusetts, Lowell |
| Conference ID : | ASI2024_1023 |
| Title : | Probing the Blue Supergiant X-ray Binary Population in IC 10 |
| Authors : | Sayantan Bhattacharya 1,2 ; Silas G. T. Laycock 1,2 ; Dimitris M. Christodoulou 2 |
| Authors Affiliation: | 1 Department Of Physics & Applied Physics, University Of Massachusetts, Lowell, MA, 01854
2 Lowell Center For Space Science & Technology, Lowell, MA, USA, 01854 |
| Mode of Presentation: | Oral |
| Abstract Category : | Stars, Interstellar Medium, and Astrochemistry in Milky Way |
| Abstract : | The dwarf galaxy in Cassiopeia, IC 10, located in "close" proximity of 660 kpc, captivates astronomers with its young stellar population, abundant Wolf-Rayet stars, and the presence of massive stars in general. Leveraging a series of Chandra observations, we have identified the X-ray point sources. Correlating our list of x-ray sources with published optical catalogs we found those having an optical counterpart. Applying an optical color-magnitude selection to isolate blue supergiant stars, we find the final list of intriguing blue supergiants in a compact-object binary. The ongoing starburst in IC 10 has given rise to a diverse collection of exotic compact-object binaries, including IC 10 X-1 (a Wolf-Rayet and Blackhole high mass x-ray binary) and IC 10 X-2 (a Blue supergiant fast x-ray transient). Blue SG-XRBs include a major class of progenitors of double-degenerate binaries, hence their numbers are an important factor in modeling the rate of gravitational-wave sources. Identifying the nature of each individual source is a slow and difficult process, but ultimately necessary as it paves the way toward a comprehensive census of X-ray binaries (XRBs), enabling meaningful comparisons with other galaxies, for example, the Magellanic Clouds. |
