Observations of the 6 Centimeter Lines of OH in Evolved (OH/IR) Stars

Details Observations of the 6 Centimeter Lines of OH in Evolved (OH/IR) Stars Observations of the 6 Centimeter Lines of OH in Evolved (OH/IR) Stars

2006-10-24

arxiv.org/abs/astro-ph/0610709v1

Astrophys.J.653:L45-L48,2006

Astronomy and Astrophysics

Astrophysics

4 pages, to appear in ApJL

Scientific paper

10.1086/510382

Recent observational and theoretical advances have called into question traditional OH maser pumping models in evolved (OH/IR) stars. The detection of excited-state OH lines would provide additional constraints to discriminate amongst these theoretical models. In this Letter, we report on VLA observations of the 4750 MHz and 4765 MHz lines of OH toward 45 sources, mostly evolved stars. We detect 4765 MHz emission in the star forming regions Mon R2 and LDN 1084, but we do not detect excited-state emission in any evolved stars. The flux density and velocity of the 4765 MHz detection in Mon R2 suggests that a new flaring event has begun.

Affiliated with

Also associated with

No associations

Rating

Observations of the 6 Centimeter Lines of OH in Evolved (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 Observations of the 6 Centimeter Lines of OH in Evolved (OH/IR) Stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observations of the 6 Centimeter Lines of OH in Evolved (OH/IR) Stars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-343436