SIMBAD references

1998AJ....115.1921A - Astron. J., 115, 1921-1933 (1998/May-0)

The MACHO project LMC variable star inventory. VII. The discovery of RV Tauri stars and new type II cepheids in the Large Magellanic Cloud.

ALCOCK C., ALLSMAN R.A., ALVES D.R., AXELROD T.S., BECKER A., BENNETT D.P., COOK K.H., FREEMAN K.C., GRIEST K., LAWSON W.A., LEHNER M.J., MARSHALL S.L., MINNITI D., PETERSON B.A., POLLARD K.R., PRATT M.R., QUINN P.J., RODGERS A.W., SUTHERLAND W., TOMANEY A. and WELCH D.L.

Abstract (from CDS):

We report the discovery of RV Tauri stars in the Large Magellanic Cloud (LMC). In light- and color-curve behavior, the RV Tauri stars appear to be a direct extension of the type II Cepheids to longer periods. A single period-luminosity-color relationship is seen to describe both the type II Cepheids and the RV Tauri stars in the LMC. We derive the relation V0 = 17.89(±0.20)-2.95(±0.12) log P + 5.49(±0.35)<(V - R)0>, which is valid for type II Cepheids and RV Tauri stars in the period range 0.9 < log P < 1.75. Assuming a distance modulus to the LMC of 18.5, the relation in terms of the absolute luminosities becomes MV = -0.61(±0.20)-2.95(±0.12) log P + 5.49(±0.35)<(V - R)0>.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Magellanic Clouds - Stars: Population II - Stars: Variables: Other

Nomenclature: Table 1: MACHO* JHHMMSS.s+DDMMSS = [AAA98b] JHHMMSS.s+DDMMSS, N=33.

CDS comments: Table 1: The format 'FFF.NNNNN.NNNN' stands for 'MACHO FFF.NNNNN.NNNN' in SIMBAD.

Simbad objects: 37

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