RR Lyrae search and stellar populations study in Canis Major: Preliminary Results

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dc.creatorMateu, Cecilia E.
dc.creatorVivas, A. Katherina
dc.creatorZinn, Robert
dc.creatorMiller, Lissa
dc.date2005-04-14
dc.date2005-04-14
dc.date.accessioned2026-07-07T02:17:28Z
dc.date.available2026-07-07T02:17:28Z
dc.descriptionWe present preliminary results of a RR Lyrae star search and stellar populations study performed in the Canis Major overdensity, spanning an area of 8.35sq deg. The observations were made in R and V bands, with the QUEST camera installed in the 1m Jurgen Stock Telescope, at the Venezuela National Observatory. The resulting Hess diagram shows a possible, but weak, red giant branch and no obvious horizontal branch, red clump or main sequence turnoff. After a multi--epoch photometric search, 6 RR Lyrae stars were confirmed with further observations obtained at the 1.0 and 1.3m telescopes of the SMARTS consortium at CTIO. Of these confirmed RR Lyrae stars, 5 have heliocentric distances between 5 and 7 kpc. Confirmation of their physsical association with the Canis Major system awaits for a study of their radial velocities.
dc.description4 pages, 10 figures. To appear in the proceedings of the International Workshop Astronomia Dinamica en Latino-America (ADeLA 2004), Merida, Venezuela, Nov 22-26, 2004, RMAA Conf Ser., C. Abad, A. Bongiovanni & Y. Guillen (eds)
dc.identifierhttps://arxiv.org/abs/astro-ph/0504333
dc.identifierhttp://arxiv.org/abs/astro-ph/0504333
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/9181
dc.subjectAstrophysics
dc.titleRR Lyrae search and stellar populations study in Canis Major: Preliminary Results
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