2011A&A...531A.134T

Query : 2011A&A...531A.134T

2011A&A...531A.134T - Astronomy and Astrophysics, volume 531A, 134-134 (2011/7-1)

New period-luminosity and period-color relations of classical cepheids. IV. The low-metallicity galaxies IC 1613, WLM, Pegasus, Sextans A and B, and Leo A in comparison to SMC.

TAMMANN G.A., REINDL B. and SANDAGE A.

Abstract (from CDS):

The metal-poor, fundamental-mode (P0) and first-overtone (P1) Cepheids in the dwarf galaxies IC1613, WLM, Pegasus, Sextans A, Sextans B, and Leo A are compared with the about equally metal-poor Cepheids of the Small Magellanic Cloud (SMC). The period-color (P-C) and period-luminosity (P-L) relations of the seven galaxies are indistinguishable, but differ distinctly from those in the Large Magellanic Cloud (LMC) and the solar neighborhood. Adopting (m-M)0SMC=18.93 from independent evidence, one can determine reliable distance moduli for the other dwarf galaxies of (m-M)0=24.34±0.03, 24.95±0.03, 24.87±0.06, 25.60±0.03 (mean for Sextans A & B), and 24.59±0.03, respectively.

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Journal keyword(s): stars: variables: Cepheids - distance scale

Simbad objects: 12

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Number of rows : 12
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 NAME Wolf-Lundmark-Melotte G 00 01 57.9 -15 27 50   11.50 11.10 10.93   ~ 692 2
2 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 11174 1
3 IC 1613 GiC 01 04 48.4071 +02 07 10.185   10.42 10.01 9.77   ~ 1236 2
4 [AMF99] V2396 Ce* 01 05 00.8 +02 10 44   19.10 17.75 17.14 16.62 ~ 12 0
5 [S71b] V39 Ce* 01 05 02.0427516600 +02 10 24.858333840   19.47 18.851 18.422 17.617 ~ 18 0
6 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 17469 0
7 Mrk 116 PaG 09 34 02.1 +55 14 25           ~ 1108 1
8 NAME Leo A G 09 59 26.46 +30 44 47.0 14.08 13.54 13.26 13.33   ~ 616 0
9 NAME Sextans B H2G 10 00 00.8217342072 +05 20 09.533389560 12.77 12.25 11.89 11.71   ~ 528 0
10 NAME Sex A H2G 10 11 00.5 -04 41 30 12.48 12.13 11.93 11.78   ~ 727 2
11 NAME PegDIG G 23 28 35.2 +14 44 35 13.85 13.16 12.52     ~ 474 1
12 NAME Peg dSph GiG 23 51 46.4 +24 35 11   14.5 13.2     ~ 236 2

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