SIMBAD references

1999ApJ...514L..25L - Astrophys. J., 514, L25-L26 (1999/March-3)

On the nature of the peculiar hot star in the young Large Magellanic Cloud cluster NGC 1818.

LIEBERT J.

Abstract (from CDS):

The blue star reported in the field of the young LMC cluster NGC 1818 by Elson et al. in 1998 has the wrong luminosity and radius to be a ``luminous white dwarf'' member of the cluster. In addition, unless the effective temperature range quoted by the authors is a drastic underestimate, the luminosity is much too low for it to be a cluster member in the post-asymptotic giant branch phase. Other possibilities, including that of binary evolution, are briefly discussed. However, the implication that the massive main-sequence turnoff stars in this cluster can produce white dwarfs (instead of neutron stars) from single-star evolution needs to be reconsidered.

Abstract Copyright:

Journal keyword(s): Galaxy: Globular Clusters: Individual: NGC Number: NGC 1818 - Stars: White Dwarfs

CDS comments: Hot star in NGC 1818 = EQ J0504-6626

Simbad objects: 5

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