PG 1002+506: A Be Star Apparently at Z > +10 Kiloparsecs

Details PG 1002+506: A Be Star Apparently at Z > +10 Kiloparsecs PG 1002+506: A Be Star Apparently at Z > +10 Kiloparsecs

Apr 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998apj...497..717r&link_type=abstract

Astrophysical Journal v.497, p.717

Astronomy and Astrophysics

Astronomy

4

Galaxy: Halo, Stars: Emission-Line, Be, Stars: Fundamental Parameters, Stars: Individual Alphanumeric: Pg 1002+506

Scientific paper

PG 1002+506 is found to be a Be star, one of three found so far by the Palomar-Green survey. Its spectrum is classified as a B5 +/- 1 Ve, with Teff = 14,900 +/- 1200, log g = 4.2 +/- 0.2, and v sin i = 340 +/- 50 km s-1. At b = +51 deg, its height above the Galactic plane would therefore be z = +10.8 kpc, putting this apparently young, rapidly rotating star well into the Galactic halo. Its heliocentric radial velocity is found to be -2 +/- 15 km s-1, consistent with either having been formed in the Galactic disk and subsequently ejected or having been formed in the halo.

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