Molecular-line emission from the centres of Centaurus A and other southern galaxies

Details Molecular-line emission from the centres of Centaurus A and other southern galaxies Molecular-line emission from the centres of Centaurus A and other southern galaxies

Nov 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...265..487i&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 265, no. 2, p. 487-498.

Astronomy and Astrophysics

Astrophysics

37

Emission Spectra, Galactic Nuclei, Molecular Spectra, Radio Galaxies, Far Infrared Radiation, Hydrocyanic Acid, Line Spectra, Southern Sky

Scientific paper

A variety of molecular lines was observed in emission towards the center of Centaurus A. Transitions tracing high-density moleculer lines, notably the J = 1-0 transitions of HCO(+), HCN, and HNC, were observed towards the centers of NGC 253, NGC 3256, the Circinus galaxy, and M 83. A nearly constant ratio of observed molecular line brightness temperatures from galaxy to galaxy was observed; in particular, the HCN/HNC ratio exhibits very little deviation from the mean value of 2.1, indicating warm molecular gas in all the galaxies observed, and suggesting a clumpy distribution. The ratios of HCO(+) and HCN with respect to C-12O and C-13O likewise show little variation.

Affiliated with

Also associated with

No associations

Rating

Molecular-line emission from the centres of Centaurus A and other southern galaxies 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 Molecular-line emission from the centres of Centaurus A and other southern galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Molecular-line emission from the centres of Centaurus A and other southern galaxies will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1551145