Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011mss..confetf12e&link_type=abstract
"International Symposium On Molecular Spectroscopy, 66th Meeting, Held 20-24 June, 2011 at Ohio State University. http://molspec
Astronomy and Astrophysics
Astronomy
Astronomical Species And Processes
Scientific paper
Although a number of molecular line surveys of carbon-rich circumstellar envelopes (CSE) have been performed, only one oxygen-rich CSE, that of VY Canis Majoris (VY CMa), has been studied in depth. The Arizona Radio Observatory (ARO) 1 mm survey of VY CMa showed a very different and interesting chemistry dominated by sulfur- and silicon-bearing compounds as well as a number of more exotic species. A similar survey of the oxygen rich star NML Cygnus (NML Cyg) from 215 to 285 GHz is currently under way using the ARO Sub-millimeter Telescope. Initial observations show that this circumstellar envelope appears to be as chemically rich as that of VY CMa. Molecules including 12CO, 13CO, 12CN, 13CN, HCN, HCO+, CS, SO{_2}, SiO and 30SiO have been observed in NML Cyg. Line profiles of this source also suggest that there may be multiple outflows and that the circumstellar envelope is not spherically symmetric. Current results will be presented.
Edwards Jessica L.
Woolf Nancy J.
Ziurys Lucy M.
No associations
LandOfFree
The Aro 1 mm Survey of the Oxygen-Rich Envelope of Supergiant Star NML Cygnus 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 The Aro 1 mm Survey of the Oxygen-Rich Envelope of Supergiant Star NML Cygnus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Aro 1 mm Survey of the Oxygen-Rich Envelope of Supergiant Star NML Cygnus will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1001085