Zobrazeno 1 - 10
of 10
pro vyhledávání: '"ARAGONA, CHRISTINA"'
We present a study of the B and Be star populations of the Double Cluster h and chi Persei. Blue optical spectroscopy is used to first measure projected rotational velocity, V sin i, effective surface temperature, T_eff, and surface gravity, log g, f
Externí odkaz:
http://arxiv.org/abs/1209.5771
HD 259440 is a B0pe star that was proposed as the optical counterpart to the gamma-ray source HESS J0632+057. Here we present optical spectra of HD 259440 acquired to investigate the stellar parameters, the properties of the Be star disk, and evidenc
Externí odkaz:
http://arxiv.org/abs/1009.2100
Autor:
McSwain, M. Virginia, De Becker, Michael, Roberts, Mallory S. E., Boyajian, Tabetha S., Gies, Douglas R., Grundstrom, Erika D., Aragona, Christina, Marsh, Amber N., Roettenbacher, Rachael M.
HD 15137 is an intriguing runaway O-type binary system that offers a rare opportunity to explore the mechanism by which it was ejected from the open cluster of its birth. Here we present recent blue optical spectra of HD 15137 and derive a new orbita
Externí odkaz:
http://arxiv.org/abs/0912.5133
Autor:
Aragona, Christina, McSwain, M. Virginia, Grundstrom, Erika D., Marsh, Amber N., Roettenbacher, Rachael M., Hessler, Katelyn M., Boyajian, Tabetha S., Ray, Paul S.
Publikováno v:
Astrophys.J.698:514-518,2009
LS I +61 303 and LS 5039 are two of only a handful of known high mass X-ray binaries (HMXBs) that exhibit very high energy emission in the MeV-TeV range, and these "gamma-ray binaries" are of renewed interest due to the recent launch of the Fermi Gam
Externí odkaz:
http://arxiv.org/abs/0902.4015
Akademický článek
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Publikováno v:
Astronomical Journal; Dec2012, Vol. 144 Issue 6, p1-10, 10p
Publikováno v:
Astrophysical Journal; 11/20/2010, Vol. 724 Issue 1, p306-312, 7p
Autor:
Grundstrom, Erika1, Aragona, Christina2, Boyajian, Tabetha3, Gies, Douglas3, Amber, McSwain, M. Virginia2, Rachel, Williams, Stephen3, Wingert, David3
Publikováno v:
Proceedings of the International Astronomical Union. 08/02/2009, Vol. 5 Issue S262, p343-344. 2p.
Publikováno v:
The Astrophysical Journal; November 2010, Vol. 724 Issue: 1 p306-312, 7p
Autor:
Aragona, Christina, McSwain, Virginia, Grundstrom, Erika D., Marsh, Amber N., Roettenbacher, Rachael M., Hessler, Katelyn M., Boyajian, Tabetha S., Ray, Paul S.
Publikováno v:
The Astrophysical Journal; June 2009, Vol. 698 Issue: 1 p514-518, 5p