A Direct Distance to the LMC Cepheid HV 12198 from the Infrared Surface Brightness Technique

Details A Direct Distance to the LMC Cepheid HV 12198 from the Infrared Surface Brightness Technique A Direct Distance to the LMC Cepheid HV 12198 from the Infrared Surface Brightness Technique

2000-03-15

arxiv.org/abs/astro-ph/0003213v1

Astronomy and Astrophysics

Astrophysics

4 pages, 4 figures, accepted in ApJ Letters

Scientific paper

10.1086/312632

We report on a first application of the infrared surface brightness technique on a Cepheid in the Large Magellanic Cloud, the variable HV 12198 in the young globular cluster NGC 1866. From this one star, we determine a distance modulus of 18.42 +- 0.10 (random and systematic uncertainty) to the cluster. When the results on further member Cepheids in NGC 1866 become available, we expect to derive the distance to the LMC with a +- 3-4 percent accuracy, including systematic errors, from this technique.

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