SIMBAD references

2008AJ....136.1921K - Astron. J., 136, 1921-1939 (2008/November-0)

The variable stars of the Draco dwarf spheroidal galaxy: revisited.

KINEMUCHI K., HARRIS H.C., SMITH H.A., SILBERMANN N.A., SNYDER L.A., LACLUYZE A.P. and CLARK C.L.

Abstract (from CDS):

We present a CCD survey of variable stars in the Draco dwarf spheroidal galaxy. This survey, which has the largest areal coverage since the original variable star survey by Baade & Swope, includes photometry for 270 RR Lyrae (RRL) stars, 9 anomalous Cepheids (ACs), 2 eclipsing binaries, and 12 slow, irregular red variables, as well as 30 background QSOs. Twenty-six probable double-mode RRL stars were identified. Observed parameters, including mean V and I magnitudes, V amplitudes, and periods, have been derived. Photometric metallicities of the ab-type RRL stars were calculated according to the method of Jurcsik & Kovacs, yielding a mean metallicity of <[Fe/H]≥-2.19±0.03. The well-known Oosterhoff intermediate nature of the RRL stars in Draco is reconfirmed, although the double-mode RRL stars, with one exception, have properties similar to those found in Oosterhoff type II globular clusters. The period-luminosity relation of the ACs is rediscussed with the addition of the new Draco ACs.

Abstract Copyright:

Journal keyword(s): galaxies: dwarf - stars: RR Lyrae - stars: variables: other

VizieR on-line data: <Available at CDS (J/AJ/136/1921): table5.dat table7.dat table8.dat table9.dat table10.dat>

Nomenclature: Tables 5, 8-10: [KHS2008] NNN N=323+9+14+30 among (Nos 1-332).

Simbad objects: 337

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2021.05.13-04:07:35

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