Abstract
view Abstract Citations (18) References (12) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS High Spatial Resolution Maps of Circumstellar SiC 2 in IRC +10216 Gensheimer, P. D. ; Likkel, Lauren ; Snyder, L. E. Abstract This Letter presents details of the first interferometer observations of the 4(22)-3(21) transition of SiC2 at 95.57936 GHz toward IRC + 10216. It is found that most of the emission from SiC2 is distributed asymmetrically in the form of a shell. In particular, the map centered at V(LSR) = -23.8 km/s is distributed in the form of a broken ring in which the north and southeast sides are at least 3 times brighter than the west side; the ring has a radius of about 14 arcsec with a width unresolved by the beam. The results indicate that most of the SiC2 is produced by ion-molecule reactions in the outer envelope; however, a small amount of SiC2 originates near the photosphere. Publication: The Astrophysical Journal Pub Date: March 1992 DOI: 10.1086/186323 Bibcode: 1992ApJ...388L..31G Keywords: Carbon Stars; Silicon Carbides; Spatial Resolution; Stellar Envelopes; Emission Spectra; Interstellar Chemistry; Photosphere; Stellar Mass Ejection; Stellar Spectra; Astrophysics; STARS: CARBON; STARS: CIRCUMSTELLAR MATTER; STARS: INDIVIDUAL ALPHANUMERIC: IRC; 10216 full text sources ADS | data products SIMBAD (4)
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
