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

C. Alcock, R. A. Allsman, D. R. Alves, T. S. Axelrod, A. C. Becker, D. P. Bennett, K. H. Cook, K. C. Freeman, K. Griest, A. Gould, J. A. Guern, M. J. Lehner, S. L. Marshall, D. Minniti, B. A. Peterson, P. Popowski, M. R. Pratt, P. J. Quinn, A. W. Rodgers, C. W. StubbsW. Sutherland, T. Vandehei, D. L. Welch

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


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 ΔAV = -0.11 ± 0.05 mag, in excellent agreement with the recent measurement of Gould, Popowski, & Terndrup using K giants.

Original languageEnglish
Pages (from-to)396-399
Number of pages4
JournalAstrophysical Journal
Issue number1 PART I
Publication statusPublished - 1998


  • Dust, extinction -
  • Stars: variables: other (RR Lyrae)

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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