The zero point of extinction toward Baade's window from RR Lyrae stars

被引：21

作者：

Alcock, C ^{[1
]}

Allsman, RA

Alves, DR

Axelrod, TS

Becker, AC

Bennett, DP

Cook, KH

Freeman, KC

Griest, K

Gould, A

Guern, JA

Lehner, MJ

Marshall, SL

Minniti, D

Peterson, BA

Popowski, P

Pratt, MR

Quinn, PJ

Rodgers, AW

Stubbs, CW

Sutherland, W

Vandehei, T

Welch, DL

机构：

[1] Univ Calif Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

[2] Univ Calif Berkeley, Ctr Particle Astrophys, Berkeley, CA 94720 USA

[3] Australian Natl Univ, Mt Stromlo & Siding Spring Observ, Weston, ACT 2611, Australia

[4] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA

[5] Univ Washington, Dept Astron, Seattle, WA 98195 USA

[6] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA

[7] Ohio State Univ, Dept Astron, Columbus, OH 43210 USA

[8] European So Observ, D-85748 Garching, Germany

[9] Univ Oxford, Dept Phys, Oxford OX1 3RH, England

[10] McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada

来源：

ASTROPHYSICAL JOURNAL | 1998年 / 494卷 / 01期

关键词：

dust; extinction; stars; variables; other (RR Lyrae);

D O I：

10.1086/305206

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We measure the zero point of the Stanek extinction map by comparing the observed (V-K) colors of 20 RR Lyrae stars (type ab) found in the MACHO survey with their intrinsic (V-K)(0) colors as a function of period as determined from nearby RR Lyrae stars. We find that the zero point of the Stanek map should be changed by Delta A(V) = -0.11 +/- 0.05 mag, in excellent agreement with the recent measurement of Gould, Popowski, & Terndrup using K giants.

引用

页码：396 / 399

页数：4

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