High velocity water maser emission from the Post-AGB star OH 009.1-0.4
| dc.creator | Walsh, A. J. | |
| dc.creator | Breen, S. L. | |
| dc.creator | Bains, I. | |
| dc.creator | Vlemmings, W. H. T. | |
| dc.date | 2008-12-10 | |
| dc.date.accessioned | 2026-07-07T12:11:36Z | |
| dc.date.available | 2026-07-07T12:11:36Z | |
| dc.description | Observations of H$_2$O masers towards the post-AGB star and water fountain source OH 009.1--0.4 were made as part of HOPS (The H$_2$O southern galactic Plane Survey), with the Mopra radiotelescope. Together with followup observations using the Australia Telescope Compact Array (ATCA), we have identified H$_2$O maser emission over a velocity spread of nearly 400km/s (--109 to +289km/s). This velocity spread appears to be the largest of any known maser source in our Galaxy. High resolution observations with the ATCA indicate the maser emission is confined to a region $0\farcs3 \times 0\farcs3$ and shows weak evidence for a separation of the red- and blueshifted maser spots. We are unable to determine if the water fountain is projected along the line of sight, or is inclined, but either way OH 009.1--0.4 is an interesting source, worthy of followup observations. | |
| dc.description | Accepted by MNRAS Lett | |
| dc.identifier | https://arxiv.org/abs/0812.1832 | |
| dc.identifier | http://arxiv.org/abs/0812.1832 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/210270 | |
| dc.subject | Astrophysics | |
| dc.title | High velocity water maser emission from the Post-AGB star OH 009.1-0.4 | |
| dc.type | text |