| Name: | Mousumi Das |
| Affiliation: | Indian Institute of Astrophysics |
| Conference ID : | ASI2023_749 |
| Title : | Signatures of star formation triggered by gas accretion in nearby galaxies |
| Authors : | Mousumi Das, Amrutha Rao, Girish Kumar |
| Mode of Presentation: | Oral |
| Abstract Category : | Extragalactic Astronomy |
| Abstract : | Gas accretion is an important process for the growth of galaxy disks. But it is difficult to detect with certainty. However, gas accretion my trigger star formation in the outer disks of galaxies. The star formation in the extended UV disks of galaxies is a good example. The star formation maybe triggered by gas accretion or instabilities in the gas built up in the outer disk via accretion. In this study we present UVIT observations of accretion driven star formation in nearby galaxies. We have targeted galaxies that have extended HI disks, and those that show abnormal HI gas velocities that could be due to accreted gas. We have detected such star formation in the outer star forming rings rings of NGC2841 and gas filaments associated with NGC2403. We present these early results and compare our study with theoretical models of gas accretion. |
