CfA OIR Division Lunch Talks

April 1, 1999 Pratt Conference Room, 12:30 pm

Fixing the Lower Rungs of the Cosmological Distance Scale

Dr. Kris Stanek, CfA


I will review the Local Group distance scale indicators and discuss some major problems of the local distance scale. The distance to the LMC, which provides the zero point for the Cepheid distance scale, might be 15% shorter than assumed, as revealed by the Hipparcos calibrated red clump stars. I will also discuss the ongoing effort to obtain DIRECT distances to the M31 and M33 galaxies.