HAT discovery of 76 bright periodic variable stars toward the Galactic bulge

D. M. Nataf, K. Z. Stanek, G. Á Bakos

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

We report on photometric I-band observations of 147 bright (8 < I < 13) periodic variable stars toward the Galactic bulge including 76 new discoveries. We used one of the HATnet telescopes to obtain 151 exposures spanning 88 nights in 2005 of an 8.°4 × 8°4 field of view (FOV) approximately centered on (I, b) = ( 1.73,-4.68). We observed the Galactic bulge in 2005 as part of a microlensing feasibility study, and here we discuss the periodic variable stars we found in our data. Among our discoveries we count 52 new eclipsing binaries and 24 other periodic variable stars.

Original languageEnglish (US)
Pages (from-to)261-282
Number of pages22
JournalActa Astronomica
Volume60
Issue number3
StatePublished - Nov 4 2010
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Keywords

  • Bulge - Stars
  • General
  • Photometric - Galaxy
  • Techniques
  • Variables

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