| dc.creator |
Cernicharo, José |
|
| dc.creator |
Guélin, Michel |
|
| dc.creator |
Pardo Carrión, Juan Ramón |
|
| dc.date |
2007-12-28T10:55:09Z |
|
| dc.date |
2007-12-28T10:55:09Z |
|
| dc.date |
2004-10-27 |
|
| dc.date.accessioned |
2017-01-31T00:59:34Z |
|
| dc.date.available |
2017-01-31T00:59:34Z |
|
| dc.identifier |
arXiv:astro-ph/0410657v1 |
|
| dc.identifier |
The Astrophysical Journal Letters, 615:L145–L148, 2004 November 10 |
|
| dc.identifier |
1538-4357 |
|
| dc.identifier |
http://hdl.handle.net/10261/2628 |
|
| dc.identifier |
10.1086/426439 |
|
| dc.identifier.uri |
http://dspace.mediu.edu.my:8181/xmlui/handle/10261/2628 |
|
| dc.description |
We report the detection of the linear radical HC4N in the C-rich envelope of IRC+10216. After HCCN, HC4N is the second member of the allenic chain family HC_(2n)N observed in space. The column density of HC4N is found to be 1.5 10**12 cm**(-2). The abundance ratio HC2N/HC4N is 9, a factor of two larger than the decrement observed for the cyanopolyynes HC$_(2n+1)N/HC_(2n+3)N. Linear HC_4N has a 3-Sigma electronic ground state and is one of the 3 low-energy isomeric forms of this molecule. We have searched for the bent and ringed HC4N isomers, but could only derive an upper limit to their column densities of about 3 10**(12) cm**(-2). |
|
| dc.description |
null |
|
| dc.description |
Peer reviewed |
|
| dc.format |
279018 bytes |
|
| dc.format |
application/pdf |
|
| dc.language |
eng |
|
| dc.publisher |
American Astronomical Society |
|
| dc.relation |
Preprint |
|
| dc.rights |
openAccess |
|
| dc.subject |
Astrochemistry |
|
| dc.subject |
Stars: AGB and post‐AGB |
|
| dc.subject |
Line: identification |
|
| dc.subject |
ISM: molecules |
|
| dc.subject |
Stars: individual (IRC +10216) |
|
| dc.title |
Detection of the linear radical HC4N in IRC+10216 |
|
| dc.type |
Pre-print |
|