• Corpus ID: 119086241

Optical Gravitational Lensing Experiment. The Distance Scale: Galactic Bulge - LMC - SMC

@article{Udalski1998OpticalGL,
  title={Optical Gravitational Lensing Experiment. The Distance Scale: Galactic Bulge - LMC - SMC},
  author={Andrzej Udalski},
  journal={arXiv: Astrophysics},
  year={1998}
}
  • A. Udalski
  • Published 1 April 1998
  • Physics
  • arXiv: Astrophysics
We analyze the mean luminosity of three samples of field RRab Lyr stars observed in the course of the OGLE microlensing experiment: 73 stars from the Galactic bulge and 110 and 128 stars from selected fields in the LMC and SMC, respectively. The fields are the same as in the recent distance determination to the Magellanic Clouds with the red clump stars method by Udalski et al (1998). We determine the relative distance scale d_{GB}:d_{LMC}:d_{SMC} equal to: (0.194+/-0.010):1.00:(1.30+/-0.08… 
The Optical Gravitational Lensing Experiment: Short Distance Scaleto the Large Magellanic Cloud*
We present UBVI photometry of the eclipsing binary HV 2274—the system that has been recently used for distance determination to the LMC by Guinan et al. We determine the interstellar reddening to the
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  • Udalski
  • Physics
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TLDR
The range of metallicity of the Hipparcos sample partially overlaps with met allicity of field giants in the LMC, thus making it possible to determine the distance to the L MC by almost direct comparison of brightness of the local Hipparco red clump giants with that of LMC stars.
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New photometry and spectroscopy for more than a hundred RR Lyrae stars in two fields located close to the bar of the Large Magellanic Cloud (LMC) are used to derive new accurate estimates of the
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  • Physics
    The Astrophysical journal
  • 2000
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I explore the consequences of making the RR Lyrae and clump giant distance scales consistent in the solar neighborhood, Galactic bulge and Large Magellanic Cloud (LMC). I employ two major
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