AAS 201st Meeting, January, 2003
Session 93. Star Formation II
Poster, Wednesday, January 8, 2003, 9:20am-6:30pm, Exhibit Hall AB

[Previous] | [Session 93] | [Next]

[93.13] Deconstructing HD 28867

F.M. Walter (Stony Brook University), T.L. Beck (Gemini Observatory), J.A. Morse (CASA, U. Colorado), S.J. Wolk (CfA)

The 3\arcsec pair of B9 stars, HD 28867, is one of the brightest X-ray sources in the Taurus-Auriga star forming region. We show that the East component is the X-ray source. The East component has a near-IR excess and displays narrow absorption lines in the optical, both of which are consistent with a mid-K spectral type companion. This companion is one of the brightest low mass pre-main sequence stars in Tau-Aur; at 2 microns it and the B9 star are equally bright. It is not a radial velocity variable, and is not separable in K band speckle imaging, which constrains the K star to lie within 30 AU of the B star. We also report on a possible fourth member of the group, an early M star 18\arcsec south of HD 28867.

[Previous] | [Session 93] | [Next]

Bulletin of the American Astronomical Society, 34, #4
© 2002. The American Astronomical Soceity.