Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003assl..283..329h&link_type=abstract
In: Mass-losing pulsating stars and their circumstellar matter. Workshop, May 13-16, 2002, Sendai, Japan, edited by Y. Nakada, M
Astronomy and Astrophysics
Astrophysics
Masers, Galactic Structure, Agb Stars, Post-Agb Stars
Scientific paper
We discuss 766 masers detected in two surveys in the 1612 MHz OH maser line, one made with the Australian Compact Array and the other with the (U.S.) Very Large Array. The surveys covered the sky in l from -45° to +45°, in b from -3° to +3° and over the radial velocity range from -300 km s-1 to +300 km s-1. We identified the masers with sources found in published near- and mid-IR surveys and find that the large majority of the doubly peaked masers correspond to AGB stars, but that there exists a small group with a similar maser line profile but different infrared colors; probably they are very young post-AGB objects. We confirm with new evidence that OH/IR stars with larger outflow velocities are more massive and younger than those with a smaller outflow velocity. We find an asymmetry in the longitude distribution of the OH/IR stars in the inner Milky Way Galaxy and explain this by the assumption of the existence of a galactic bar.
No associations
LandOfFree
Infrared properties and galactic distribution of OH/IR stars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Infrared properties and galactic distribution of OH/IR stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Infrared properties and galactic distribution of OH/IR stars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-920717