SIMBAD references

2011MNRAS.413..223M - Mon. Not. R. Astron. Soc., 413, 223-234 (2011/May-1)

Period–luminosity relations of type II cepheids in the Magellanic clouds.

MATSUNAGA N., FEAST M.W. and SOSZYNSKI I.

Abstract (from CDS):

Period-luminosity relations (PLRs) of type II Cepheids (T2Cs) in the Small Magellanic Cloud (SMC) are derived based on OGLE-III, IRSF/SIRIUS and other data, and these are compared with results for the Large Magellanic Cloud (LMC) and Galactic globular clusters. Evidence is found for a change of the PLR slopes from system to system. Treating the longer period T2Cs (W Vir stars) separately gives an SMC-LMC modulus difference of 0.39 ± 0.05 mag without any metallicity corrections being applied. This agrees well with the difference in moduli based on different distance indicators, in particular the PLRs of classical Cepheids. The shorter period T2Cs (BL Her stars) give a smaller SMC-LMC difference suggesting that their absolute magnitudes might be affected either by metallicity or by age effects. It is shown that the frequency distribution of T2C periods also changes from system to system. Evidence of an irradiated accretion disc in XTE J1818-245

Abstract Copyright: 2011 The Authors Monthly Notices of the Royal Astronomical Society2011 RAS

Journal keyword(s): stars: distances - stars: variables: Cepheids - Magellanic Clouds - infrared: stars

VizieR on-line data: <Available at CDS (J/MNRAS/413/223): table1.dat tablea1.dat>

Simbad objects: 62

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