| dc.creator |
Fonfría, José Pablo |
|
| dc.creator |
Agúndez, Marcelino |
|
| dc.creator |
Tercero, Belén |
|
| dc.creator |
Pardo Carrión, Juan Ramón |
|
| dc.creator |
Cernicharo, José |
|
| dc.date |
2007-12-26T16:37:30Z |
|
| dc.date |
2007-12-26T16:37:30Z |
|
| dc.date |
2007-10-09 |
|
| dc.date.accessioned |
2017-01-31T00:59:32Z |
|
| dc.date.available |
2017-01-31T00:59:32Z |
|
| dc.identifier |
The Astrophysical Journal Letters, 646, 127 (2006) |
|
| dc.identifier |
arXiv:0710.1836v1 |
|
| dc.identifier |
http://hdl.handle.net/10261/2610 |
|
| dc.identifier.uri |
http://dspace.mediu.edu.my:8181/xmlui/handle/10261/2610 |
|
| dc.description |
We report on the first detection of maser emission in the J=11-10, J=14-13 and J=15-14 transitions of the v=0 vibrational state of SiS toward the C-rich star IRC+10216. These masers seem to be produced in the very inhomogeneous region between the star and the inner dust formation zone, placed at 5-7 R*, with expansion velocities below 10 km/s. We interpret the pumping mechanism as due to overlaps between v=1-0 ro-vibrational lines of SiS and mid-IR lines of C2H2, HCN and their 13C isotopologues. The large number of overlaps found suggests the existence of strong masers for high-J v=0 and v=1 SiS transitions, located in the submillimeter range. In addition, it could be possible to find several rotational lines of the SiS isotopologues displaying maser emission. |
|
| dc.description |
We want to thank the IRAM staff, M. J. Richter (NSF grant AST-0307497), J. H. Lacy (NSF grant AST-0205518), and collaborators for the mid-infrared observations, and Spanish MEC for funding support through grant ESP2004-665, AYA2003-2785, and "Comunidad de Madrid" Government under PRICIT project S-0505/ESP-0237 (ASTROCAM). This study is supported in part by the European Community’s human potential Programme under contract MCRTN-CT-2004-
51230, Molecular Universe. |
|
| dc.description |
Peer reviewed |
|
| dc.format |
229419 bytes |
|
| dc.format |
application/pdf |
|
| dc.language |
eng |
|
| dc.relation |
Preprint |
|
| dc.rights |
openAccess |
|
| dc.subject |
Circumstellar matter |
|
| dc.subject |
Masers |
|
| dc.subject |
Stars: Asymptotic Giant Branch (AGB) and post-AGB |
|
| dc.subject |
Stars: carbon |
|
| dc.title |
High-J v=0 SiS Maser Emission in IRC+10216: A New Case of Infrared Overlaps |
|
| dc.type |
Pre-print |
|