Atomic hydrogen in AGB circumstellar environments. A case study: X Her
| hal.structure.identifier | Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique [LERMA] | |
| hal.structure.identifier | Laboratoire d'Astrophysique de Bordeaux [Pessac] [LAB] | |
| hal.structure.identifier | Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB] | |
| hal.structure.identifier | Observatoire aquitain des sciences de l'univers [OASU] | |
| dc.contributor.author | GARDAN, E. | |
| hal.structure.identifier | Galaxies, Etoiles, Physique, Instrumentation [GEPI] | |
| dc.contributor.author | GERARD, E. | |
| hal.structure.identifier | Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique [LERMA] | |
| dc.contributor.author | BERTRE, T. Le | |
| dc.date.issued | 2006 | |
| dc.identifier.issn | 0035-8711 | |
| dc.description.abstractEn | We report the detection of the HI line at 21 cm from the circumstellar shell around the AGB star X Her using the position-switching technique with the Nancay Radio Telescope. At the star position the line shows 2 components: (i) a broad one (FWHM ~ 13 km/s) centered at -72.2 km/s, and (ii) a narrow one (FWHM \~ 4 km/s) centered at ~ -70.6 km/s. Our map shows that the source associated to the broad component is asymmetric with material flowing preferentially towards the North-East. This source extends to ~ 10 arcmin. (~ 0.4 pc) from the star in that direction. On the other hand, the narrow component is detected only at the star position and indicates material flowing away from the observer. The total mass of atomic hydrogen is ~ 6.5 10^{-3} solar mass which, within a factor 2, agrees with the estimate obtained from IRAS data at 60 microns. | |
| dc.language.iso | en | |
| dc.publisher | Oxford University Press (OUP): Policy P - Oxford Open Option A | |
| dc.subject.en | stars | |
| dc.subject.en | AGB and post-AGB -circumstellar matter -stars | |
| dc.subject.en | late-type -stars | |
| dc.subject.en | massloss -planetary nebulae | |
| dc.subject.en | general -radio lines | |
| dc.title.en | Atomic hydrogen in AGB circumstellar environments. A case study: X Her | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1111/j.1365-2966.2005.09709.x | |
| dc.subject.hal | Physique [physics]/Astrophysique [astro-ph]/Cosmologie et astrophysique extra-galactique [astro-ph.CO] | |
| 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 | astro-ph/0510125 | |
| bordeaux.journal | Monthly Notices of the Royal Astronomical Society | |
| bordeaux.page | 245-254 | |
| bordeaux.volume | 365 | |
| bordeaux.issue | 1 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00404888 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00404888v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Monthly%20Notices%20of%20the%20Royal%20Astronomical%20Society&rft.date=2006&rft.volume=365&rft.issue=1&rft.spage=245-254&rft.epage=245-254&rft.eissn=0035-8711&rft.issn=0035-8711&rft.au=GARDAN,%20E.&GERARD,%20E.&BERTRE,%20T.%20Le&rft.genre=article |
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