A Review of the Distance and Structure of the Large Magellanic Cloud

Details A Review of the Distance and Structure of the Large Magellanic Cloud A Review of the Distance and Structure of the Large Magellanic Cloud

2003-10-23

arxiv.org/abs/astro-ph/0310673v2

New Astron.Rev. 48 (2004) 659-665

Astronomy and Astrophysics

Astrophysics

ver. 2, updated refs., 10 + 2 pages, now incl. Appendix w/ long-form abstract for "Highlights of Astronomy, Vol. 13," ed. O. E

Scientific paper

10.1016/j.newar.2004.03.001

The average of 14 recent measurements of the distance to the Large Magellanic Cloud (LMC) implies a true modulus of 18.50 +- 0.02 mag, and demonstrates a trend in the past 2 years of convergence toward a standard value. The distance indicators reviewed are the red clump, the tip of the red giant branch, Cepheid, RR Lyrae, and Mira variable stars, cluster main-sequence fitting, supernova 1987A, and eclipsing binaries. The eclipsing binaries yield a consistent distance on average; however, the internal scatter is twice as large as the average measurement error. I discuss parameters of LMC structure that pertain to distance indicators, and speculate that warps discovered using the color of the clump are not really warps.

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