Abstract
Gamma-ray burst host galaxies are deficient in molecular gas, and show anomalous metal-poor regions close to GRB positions. Using recent Australia Telescope Compact Array (ATCA) Hi observations we show that they have substantial atomic gas reservoirs. This suggests that star formation in these galaxies may be fuelled by recent inflow of metal-poor atomic gas. While this process is debated, it can happen in low-metallicity gas near the onset of star formation because gas cooling (necessary for star formation) is faster than the Hi-to-H2 conversion.
Original language | English |
---|---|
Journal | Proceedings of the International Astronomical Union |
Volume | 11 |
Issue number | A29B |
Pages (from-to) | 229-230 |
Number of pages | 2 |
ISSN | 1743-9213 |
DOIs | |
Publication status | Published - 2016 |
Event | XXIXth IAU General Assembly - Hawaii Convention Center, Honolulu, United States Duration: 3 Aug 2015 → 14 Aug 2015 Conference number: 29 https://astronomy2015.org/iau29ga |
Conference
Conference | XXIXth IAU General Assembly |
---|---|
Number | 29 |
Location | Hawaii Convention Center |
Country/Territory | United States |
City | Honolulu |
Period | 03/08/2015 → 14/08/2015 |
Internet address |
Keywords
- Galaxies: formation
- Galaxies: ISM
- Gamma rays: bursts
- Radio lines: galaxies