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arXiv:astro-ph/0012208 (astro-ph)
[Submitted on 10 Dec 2000 (v1), last revised 7 Feb 2001 (this version, v2)]

Title:The DIRECT Project: Catalogs of Stellar Objects in Nearby Galaxies. I. The Central Part of M33

Authors:L.M. Macri, K.Z. Stanek, D.D. Sasselov, M. Krockenberger (CfA), J. Kaluzny (Copernicus Astronomical Center)
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Abstract: The DIRECT project aims to determine direct distances to two important galaxies in the cosmological distance ladder -- M31 and M33 -- using detached eclipsing binaries (DEBs) and Cepheids. The search for these variables requires time-series photometry of large areas of the target galaxies and yields magnitudes and positions for tens of thousands of stellar objects, which may be of use to the astronomical community at large.
During the first phase of the project, between September 1996 and October 1997, we were awarded 95 nights on the F. L. Whipple Observatory 1.2 m telescope and 36 nights on the Michigan-Dartmouth-MIT 1.3 m telescope to search for DEBs and Cepheids in the M31 and M33 galaxies. This paper, the first in our series of stellar catalogs, lists the positions, three-color photometry, and variability indices of 57,581 stars with 14.4 < V < 23.6 in the central part of M33. The catalog is available from our FTP site at this ftp URL
Comments: A copy of the paper with full-resolution embedded figures can be retrieved from this ftp URL . To appear in the February 2001 issue of the Astronomical Journal. v3: Replaced Table 2 with correct version. Included figures inside manuscript
Subjects: Astrophysics (astro-ph)
Cite as: arXiv:astro-ph/0012208
  (or arXiv:astro-ph/0012208v2 for this version)
  https://doi.org/10.48550/arXiv.astro-ph/0012208
Journal reference: 2001, AJ, 121, 861
Related DOI: https://doi.org/10.1086/318772

Submission history

From: Lucas M. Macri [view email]
[v1] Sun, 10 Dec 2000 17:58:22 UTC (474 KB)
[v2] Wed, 7 Feb 2001 21:42:47 UTC (364 KB)
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