First Detection of CO in a Low Surface Brightness Galaxy

Details First Detection of CO in a Low Surface Brightness Galaxy First Detection of CO in a Low Surface Brightness Galaxy

2000-10-09

arxiv.org/abs/astro-ph/0010160v1

Astronomy and Astrophysics

Astrophysics

8 pages, 2 figures, accepted by the ApJL

Scientific paper

10.1086/317893

We report on the first attempts at searching for CO in red low surface brightness galaxies, and the first detection of molecular gas in a low surface brightness (mu_B(0)_{obs} > 23 mag arcsec^{-2}) galaxy. Using the IRAM 30m telescope, CO(1-0) and CO(2-1) lines were searched for in four galaxies -- P06-1, P05-5, C05-3, & C04-2. In three of the galaxies no CO was detected, to T_{MB} ~ 1.8mK (at the 3 sigma level). In the fourth galaxy, P06-1, both lines were detected. Comparing our findings with previous studies shows P06-1 to have a molecular-to-atomic mass ratio considerably lower than is predicted using theoretical models based on high surface brightness galaxy studies. This indicates the N(H_2)/(int{T(CO)dv}) conversion factor for low surface brightness galaxies may currently be consistently underestimated by a factor of 3 - 20.

Affiliated with

Also associated with

No associations

Rating

First Detection of CO in a Low Surface Brightness Galaxy 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 First Detection of CO in a Low Surface Brightness Galaxy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and First Detection of CO in a Low Surface Brightness Galaxy will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-77718