VLBI potential of the ALMA telescope in the millimetre
| 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] | |
| hal.structure.identifier | Laboratoire d'Astrophysique de Bordeaux [Pessac] [LAB] | |
| dc.contributor.author | BAUDRY, Alain | |
| dc.date.issued | 2009 | |
| dc.date.conference | 2009 | |
| dc.description.abstractEn | VLBI is not currently supported in the present ALMA construction plan. How- ever, the ALMA high gain antennas are equipped with receivers spanning several fre- quency ranges of interest to perform future mil- limetre (mm)/submillimetre (submm) VLBI ob- servations. The phased outputs of the full ALMA array or of subsets of the ALMA an- tennas will be supported in the future. In the mm/submm domain where spatial resolution is high but sensitivity is low in general, addition of the large ALMA collecting area to existing or fu- ture VLBI arrays would provide a definite detec- tion or mapping advantage. Fine details of com- pact components in bright AGNs and highly red- shifted sources could be revealed with good sen- sitivity −even though the brightest sources could remain unresolved with the longest terrestrial baselines. We briefly comment on the impor- tance of relatively short VLBI baselines (in the 100–1000 km range) to: (i) map the mm/submm cosmic maser sources excited in evolved stars or galactic star-forming regions; (ii) perform high precision astrometry of nearby stars. Finally, on the basis of recent ideas discussed in the ALMA correlator team, we briefly comment on the abil- ity of the ALMA correlator to support VLBI op- eration. | |
| dc.language.iso | en | |
| dc.source.title | 19th European VLBI for Geodesy and Astrometry Working Meeting, held in Bordeaux, France, March 24-25, 2009 | |
| dc.title.en | VLBI potential of the ALMA telescope in the millimetre | |
| dc.type | Communication dans un congrès | |
| 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] | |
| bordeaux.page | 165-168 | |
| bordeaux.country | FR | |
| bordeaux.title.proceeding | 19th European VLBI for Geodesy and Astrometry Working Meeting, held in Bordeaux, France, March 24-25, 2009 | |
| bordeaux.conference.city | Bordeaux | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00473145 | |
| hal.version | 1 | |
| hal.invited | non | |
| hal.proceedings | oui | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00473145v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.btitle=19th%20European%20VLBI%20for%20Geodesy%20and%20Astrometry%20Working%20Meeting,%20held%20in%20Bordeaux,%20France,%20March%2024-25,%202009&rft.date=2009&rft.spage=165-168&rft.epage=165-168&rft.au=BAUDRY,%20Alain&rft.genre=unknown |
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