The location of optically thin CO emission in M82

Phillips, J. P.; Mampaso, A.
Bibliographical reference

(Instituto de Astrofisica de Canarias and Comision Interministerial de Ciencia y Tecnologia, Summer School on Evolutionary Phenomena in Galaxies, Puerto de la Cruz, Spain, July 4-15, 1988) Astrophysics and Space Science (ISSN 0004-640X), vol. 156, no. 1-2, June 1989, p. 257-261. Research supported by CAICYT and SERC.

Advertised on:
6
1989
Number of authors
2
IAC number of authors
0
Citations
0
Refereed citations
0
Description
Observations of a broad area at the core of M82, obtained with spatial resolution 30 arcsec and velocity resolution 15.6 km/sec in the J = 2-1 line of CO using the 12-m NRAO antenna at KPNO, are reported. The data are presented in graphs and contour maps and characterized in detail. It is found that the J = 2-1 map is similar to the J = 1-0 map of Olofsson and Rydbeck (1984), but that the emission maximum is significantly north of the J = 1-0 emission core and the location of the X-ray maximum. It is suggested that the tenuous accreted material responsible for the CO emission north of the core may be unable to survive the more rigorous dissociating radiation field to the south.