Mid-J CO emission from the Orion BN/KL explosive outflow
| hal.structure.identifier | FORMATION STELLAIRE 2012 | |
| dc.contributor.author | PENG, T.-C. | |
| dc.contributor.author | ZAPATA, L. A. | |
| hal.structure.identifier | Max-Planck-Institut für Radioastronomie [MPIFR] | |
| dc.contributor.author | WYROWSKI, F. | |
| hal.structure.identifier | Max Planck Institute for Radio Astronomy | |
| dc.contributor.author | GÜSTEN, R. | |
| hal.structure.identifier | Max-Planck-Institut für Radioastronomie [MPIFR] | |
| dc.contributor.author | MENTEN, K. M. | |
| dc.date.created | 2012-09-03 | |
| dc.date.issued | 2012 | |
| dc.identifier.issn | 0004-6361 | |
| dc.description.abstractEn | High spatial resolution low-J 12CO observations have shown that the wide-angle outflow seen in the Orion BN/KL region correlates with the famous H2 fingers. Recently, high-resolution large-scale mappings of mid- and higher-J CO emissions have been reported toward the Orion molecular cloud 1 core region using the APEX telescope. Therefore, it is of interest to investigate this outflow in the higher-J 12CO emission, which is likely excited by shocks. The observations were carried out using the dual-color heterodyne array CHAMP+ on the APEX telescope. The images of the Orion BN/KL region were obtained in the 12CO J=6-5 and J=7-6 transitions with angular resolutions of 8.6 and 7.4 arcsec, respectively. The results show a good agreement between our higher-J 12CO emission and SMA low-J 12CO data, which indicates that this wide-angle outflow in Orion BN/KL is likely the result of an explosive event that is related to the runaway objects from a dynamically decayed multiple system. From our observations, we estimate that the kinetic energy of this explosive outflow is about 1-2x10^47 erg. In addition, a scenario has been proposed where part of the outflow is decelerated and absorbed in the cloud to explain the lack of CO bullets in the southern part of BN/KL, which in turn induces the methanol masers seen in this region. | |
| dc.language.iso | en | |
| dc.publisher | EDP Sciences | |
| dc.subject.en | SM: molecules | |
| dc.subject.en | HII regions | |
| dc.subject.en | ISM: jets and outflows | |
| dc.subject.en | radio lines: ISM | |
| dc.subject.en | submillimeter: ISM | |
| dc.subject.en | ISM: clouds | |
| dc.title.en | Mid-J CO emission from the Orion BN/KL explosive outflow | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1051/0004-6361/201219937 | |
| dc.subject.hal | Planète et Univers [physics]/Astrophysique [astro-ph]/Astrophysique stellaire et solaire [astro-ph.SR] | |
| dc.subject.hal | Physique [physics]/Astrophysique [astro-ph]/Astrophysique stellaire et solaire [astro-ph.SR] | |
| dc.identifier.arxiv | 1209.0284 | |
| bordeaux.journal | Astronomy and Astrophysics - A&A | |
| bordeaux.page | id.L19 | |
| bordeaux.volume | 544 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00747028 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00747028v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Astronomy%20and%20Astrophysics%20-%20A&A&rft.date=2012&rft.volume=544&rft.spage=id.L19&rft.epage=id.L19&rft.eissn=0004-6361&rft.issn=0004-6361&rft.au=PENG,%20T.-C.&ZAPATA,%20L.%20A.&WYROWSKI,%20F.&G%C3%9CSTEN,%20R.&MENTEN,%20K.%20M.&rft.genre=article |
Fichier(s) constituant ce document
| Fichiers | Taille | Format | Vue |
|---|---|---|---|
|
Il n'y a pas de fichiers associés à ce document. |
|||