HST astrometry: the Galactic constant Theta_0/R_0

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dc.creatorBedin, L. R.
dc.creatorPiotto, G.
dc.creatorKing, I. R.
dc.creatorAnderson, J.
dc.date2003-03-11
dc.date.accessioned2026-07-07T02:07:51Z
dc.date.available2026-07-07T02:07:51Z
dc.descriptionFrom multi-epoch WFPC2/HST observations we present astrometric measurements of the absolute motion of the bulge stars. The presence of an extragalactic point-source candidate allows us to measure the difference between the Oort constants, A-B = Theta_0/R_0. We find: Theta_0/R_0 = 27.4 +/- 1.8 km/s/kpc.
dc.description2 pages, 1 figure, SAIt Padova, 10-12 aprile 2002
dc.identifierhttps://arxiv.org/abs/astro-ph/0303230
dc.identifierhttp://arxiv.org/abs/astro-ph/0303230
dc.identifierMem.Soc.Ast.It. 74 (2002) 10-12
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/5837
dc.subjectAstrophysics
dc.titleHST astrometry: the Galactic constant Theta_0/R_0
dc.typetext

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