[vsnet-chat 101] Bright variables in the LMC

[bas@lowell.Lowell.Edu (Brian Skiff)]

     The apparent distance modulus of the LMC is nearly 19.0.  So the
luminous Cepheids (absolute magnitudes something like -5 to -7) are quite
bright, with V ~12-14.  The luminous M supergiants will have absolute
magnitudes in V of about -4, so will appear at mag. or so.  These ranges
are very much brighter than the stars being surveyed the MACHO group,
who are looking down at mag. 17 and fainter.
     The luminous hot stars have been pretty well surveyed in the Clouds
by Stephenson and others, but I do not know about the bright cool stars.
Someone like Mati Morel should know.

\Brian Skiff  (bas@lowell.edu)

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