Aperture Synthesis Observations of HCN J=1--0 Emission from Y Canum Venaticorum

Details Aperture Synthesis Observations of HCN J=1--0 Emission from Y Canum Venaticorum Aperture Synthesis Observations of HCN J=1--0 Emission from Y Canum Venaticorum

Feb 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995ap%26ss.224..493i&link_type=abstract

Astrophysics and Space Science, Volume 224, Issue 1-2, pp. 493-494

Astronomy and Astrophysics

Astrophysics

3

Carbon Stars, Hcn, Abundances, Masers, Y Cvn

Scientific paper

We have made high resolution observations of HCN (1-0) emission from the carbon star Y Canum Venaticorum using the Nobeyama Millimeter Array. We find that the emission region is not well resolved by the synthesized beam of 3.7” × 4.6” over the entire velocity range (VLSR =10 to 35 km s-1). We find that the true brightness temperature probably exceeds 200 K at many velocity channels as well as at the 26 km s-1 maser spike. The broad emission component may be the result of superimposed maser spikes. The high brightness requires an unreasonably high HCN fractional abundance if LTE is assumed. It is likely that the HCN abundance previously reported for the star is considerably affected by the maser action. A new maser spike has been found at VLSR = 29 km s-1

Affiliated with

Also associated with

No associations

Rating

Aperture Synthesis Observations of HCN J=1--0 Emission from Y Canum Venaticorum 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 Aperture Synthesis Observations of HCN J=1--0 Emission from Y Canum Venaticorum, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aperture Synthesis Observations of HCN J=1--0 Emission from Y Canum Venaticorum will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1630343