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2006MNRAS.370.1979M - Mon. Not. R. Astron. Soc., 370, 1979-1990 (2006/August-3)
The period-luminosity relation for type II Cepheids in globular clusters.
MATSUNAGA N., FUKUSHI H., NAKADA Y., TANABE T., FEAST M.W., MENZIES J.W., ITA Y., NISHIYAMA S., BABA D., NAOI T., NAKAYA H., KAWADU T., ISHIHARA A. and KATO D.
Abstract (from CDS):
Using Two Micron All-Sky Survey (2MASS) data, we show that the type II Cepheids in the Large Magellanic Cloud (LMC) fit our period-luminosity relation within the expected scatter at the shorter periods. However, at long periods (P > 40 d, i.e. in the RV Tau star range) the LMC field variables are brighter by about one magnitude than those of similar periods in galactic globular clusters. The long-period cluster stars also differ from both these LMC stars and galactic field RV Tau stars in a colour-colour diagram. The reasons for these differences are discussed.
Abstract Copyright: 2006 The Authors. Journal compilation © 2006 RAS
Journal keyword(s): stars: Population II - stars: variables: other - globular clusters: general - infrared: stars
VizieR on-line data: <Available at CDS (J/MNRAS/370/1979): table2.dat table3.dat>
Nomenclature: Table 2: Cl* NGC 5986 SAW VNN (No. V13) added, Cl* Haute-Provence 1 SAW VNN (Nos V16-V17) added, Cl* Terzan 1 SAW VN (No. V5) added. Table 2: Cl* NGC 6256 MFN VN (Nos V1-V2), Cl* NGC 6325 MFN VN (Nos V1-V2), Cl* NGC 6453 MFN VN (Nos V1-V2), Cl* NGC 6749 MFN VN (No. V1).
Simbad objects: 59
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