Astrometry of the OH masers of 4 Mira stars

dc.creatorVlemmings, Wouter
dc.creatorvan Langevelde, Huib Jan
dc.creatorDiamond, Phil
dc.date2003-09-16
dc.date.accessioned2026-07-07T02:09:37Z
dc.date.available2026-07-07T02:09:37Z
dc.descriptionThe OH main line masers in circumstellar shells were observed with astrometric VLBI in order to accurately determine the position of the star, as well as its motion, including the parallax. Results are presented on 4 Mira stars monitored for 2 - 8 years with the VLBA. The data show that in some stars the VLBI detection is dominated by blue-shifted emission that is associated with the stellar image amplified by the maser shell in front of the star. In other cases the maser is not directly tied to the stellar position, but still persistent enough to measure proper motion and parallax.
dc.description3 pages, 2 figures; to appear in the PASP conference proceeding of the VLBA 10th Anniversary Meeting
dc.identifierhttps://arxiv.org/abs/astro-ph/0309459
dc.identifierhttp://arxiv.org/abs/astro-ph/0309459
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/6500
dc.subjectAstrophysics
dc.titleAstrometry of the OH masers of 4 Mira stars
dc.typetext

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