NEW CEPHEID DISTANCES TO NEARBY GALAXIES BASED ON BVRI CCD PHOTOMETRY .3. NGC-300

被引：84

作者：

FREEDMAN, WL

MADORE, BF

HAWLEY, SL

HOROWITZ, IK

MOULD, J

NAVARRETE, M

SALLMEN, S

机构：

[1] CALTECH,JET PROPULS LAB 100-22,CTR INFRARED PROC & ANAL,NASA,IPAC,PASADENA,CA 91125

[2] LAWRENCE LIVERMORE NATL LAB,INST GEOPHYS & PLANETARY PHYS,LIVERMORE,CA 94550

[3] CALTECH,DIV PHYS MATH & ASTRON,PASADENA,CA 91125

[4] NATL OPT ASTRON OBSERV,CERRO TOLOLO INTER AMER OBSERV,LA SERENA 1353,CHILE

[5] UNIV CALIF BERKELEY,DEPT ASTRON,BERKELEY,CA 94720

来源：

ASTROPHYSICAL JOURNAL | 1992年 / 396卷 / 01期

关键词：

CEPHEIDS; GALAXIES; DISTANCES AND REDSHIFTS; INDIVIDUAL; (NGC-300); LOCAL GROUP; TECHNIQUES; PHOTOMETRIC;

D O I：

10.1086/171698

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A true distance modulus of (m - M)0 = 26.66 +/- 0.10 mag (corresponding to 2.1 +/- 0.1 Mpc) has been determined for the Sculptor Group spiral galaxy NGC 300. New CCD data have been obtained for a sample of known Cepheids in this galaxy from which apparent distance moduli at B, V, R, and I wavelengths are determined. Combining the data available at different wavelengths, and assuming a true distance modulus to the LMC of 18.5 mag, a true distance modulus is obtained for NGC 300, corrected for the effects of interstellar reddening. The availability of a new distance to NGC 300 brings to five the total number of galaxies with new CCD photometry of Cepheids, useful for calibration of the Hubble constant.

引用

页码：80 / &

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