Laboratory and Astronomical Discovery of HydroMagnesium Isocyanide
| dc.contributor.author | CABEZAS, Carlos | |
| hal.structure.identifier | Departamento de Astrofísica Molecular e Infrarroja [DAMIR] | |
| dc.contributor.author | CERNICHARO, Jose | |
| hal.structure.identifier | Theoretical Physics | |
| hal.structure.identifier | Instituto de Biocomputación y Física de Sistemas Complejos = Institute for Biocomputation and Physics of Complex Systems [BIFI] | |
| dc.contributor.author | ALONSO, Jose Luis | |
| hal.structure.identifier | SSE 2013 | |
| dc.contributor.author | AGÚNDEZ, M. | |
| dc.contributor.author | MATA, Santiago | |
| hal.structure.identifier | Institut de RadioAstronomie Millimétrique [IRAM] | |
| dc.contributor.author | GUELIN, Michel | |
| dc.contributor.author | PEÑA, Isabel | |
| dc.date.created | 2013-09-02 | |
| dc.date.issued | 2013 | |
| dc.identifier.issn | 0004-637X | |
| dc.description.abstractEn | We report on the detection of hydromagnesium isocyanide, HMgNC, in the laboratory and in the carbon rich evolved star IRC+10216. The J=1-0 and J=2-1 lines were observed in our microwave laboratory equipment in Valladolid with a spectral accuracy of 3\,KHz. The hyperfine structure produced by the Nitrogen atom was resolved for both transitions. The derived rotational constants from the laboratory data are $B_0$=5481.4333(6)\,MHz, $D_0$=2.90(8)\,KHz, and $eQq(N)$=-2.200(2)\,MHz. The predicted frequencies for the rotational transitions of HMgNC in the millimeter domain have an accuracy of 0.2-0.7\,MHz. Four rotational lines of this species, J=8-7, J=10-9, J=12-11 and J=13-12, have been detected towards IRC+10216. The differences between observed and calculated frequencies are $<$0.5\,MHz. The rotational constants derived from space frequencies are $B_0$=5481.49(3)\,MHz and $D_0$=3.2(1)\,KHz, i.e., identical to the laboratory ones. A merged fit to the laboratory and space frequencies provides $B_0$=5481.4336(4)\,MHz and $D_0$=2.94(5)\,KHz. We have derived a column density for HMgNC of (6$\pm$2)$\times10^{11}$\,cm$^{-2}$. From the observed line profiles the molecule have to be produced produced in the layer where other metal-isocyanides have been already found in this source. The abundance ratio between MgNC and its hydrogenated variety, HMgNC, is $\simeq$20. | |
| dc.language.iso | en | |
| dc.publisher | American Astronomical Society | |
| dc.title.en | Laboratory and Astronomical Discovery of HydroMagnesium Isocyanide | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1088/0004-637X/775/2/133 | |
| dc.subject.hal | Planète et Univers [physics]/Astrophysique [astro-ph]/Planétologie et astrophysique de la terre [astro-ph.EP] | |
| dc.subject.hal | Physique [physics]/Astrophysique [astro-ph]/Planétologie et astrophysique de la terre [astro-ph.EP] | |
| dc.identifier.arxiv | 1309.0371 | |
| bordeaux.journal | The Astrophysical Journal | |
| bordeaux.page | article id. 133 | |
| bordeaux.volume | 775 | |
| bordeaux.issue | 2 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-01016725 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-01016725v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=The%20Astrophysical%20Journal&rft.date=2013&rft.volume=775&rft.issue=2&rft.spage=article%20id.%20133&rft.epage=article%20id.%20133&rft.eissn=0004-637X&rft.issn=0004-637X&rft.au=CABEZAS,%20Carlos&CERNICHARO,%20Jose&ALONSO,%20Jose%20Luis&AG%C3%9ANDEZ,%20M.&MATA,%20Santiago&rft.genre=article |
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