Observations of Ammonia in External Galaxies. II. Maffei 2

Details Observations of Ammonia in External Galaxies. II. Maffei 2 Observations of Ammonia in External Galaxies. II. Maffei 2

2000-10-25

arxiv.org/abs/astro-ph/0010506v1

Astronomy and Astrophysics

Astrophysics

6 pages, 2 fugures

Scientific paper

The ammonia (J,K) = (1,1), (2,2), (3,3), and (4,4) transitions at 23.7 -- 24.1 GHz region were searched for in a nearby galaxy Maffei 2 to study relation between molecular abundances and physical conditions in galaxies. The (1,1), (2,2), and (3,3) emission lines were clearly detected. The rotational temperatures and ortho-to-para abundance ratios obtained are about 30 K and about 2.6, respectively. The abundance of NH3 relative to H2 in Maffei 2 was found to be the largest among galaxies where NH3 is already detected, and the abundance in Maffei 2 is more than an order of magnitude larger than the already reported upper limit in M82. Hence, we further confirmed the systematically peculiar molecular abundance in the aspect of formation mechanisms of molecules already reported in M82.

Affiliated with

Also associated with

No associations

Rating

Observations of Ammonia in External Galaxies. II. Maffei 2 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 Ammonia in External Galaxies. II. Maffei 2, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observations of Ammonia in External Galaxies. II. Maffei 2 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-105104