BJORKMAN, KAREN S. / Astronomy / Researchers

International Center for Scientific Research

Researchers

Astronomy / BJORKMAN, KAREN S.

karenastro.utoledo.edu

Position

Associate Professor of Astronomy, Ritter Astrophysical Research Center, Department of Physics & Astronomy, University of Toledo, Toledo, USA.

Research interests

· Rapidly rotating hot stars: geometry, variability, and physical conditions of their circumstellar envelopes
· Herbig Ae/Be pre-main sequence stars: circumstellar geometry & disk formation, and relation to proto-planetary systems
· Observational techniques to deduce the nature of circumstellar envelopes; multi-wavelength astronomy
· Observational signatures of variability in winds from massive stars; mass-loss rates due to stellar winds

Prizes and awards

· Master Teacher, 2001-2003, College of Arts & Sciences, University of Toledo
· Sigma Xi/Dion D. Raftopoulos Oustanding Research Award, 2001, University of Toledo
· Cottrell Scholars Award, 1999, Research Corporation
· Dean's Merit Award, 1999, College of Arts & Sciences, University of Toledo
· Dean's Merit Award, 1998, College of Arts & Sciences, University of Toledo
· NASA Group Achievement Award, 1996: Astro-2 Mission Team
· NASA Group Achievement Award, 1991: Astro-1 Payload Science Team
· NASA Group Achievement Award, 1991: Astro-1 Investigators Group
· Colorado Doctoral Fellow, 1982-1988
· Leids Kerkhoven-Bosscha award (research visit to the Netherlands), 1987
· U. of Colorado Graduate Student Foundation Fund Awards, 1983, 1986
· National Merit Scholar 1975; Martin Marietta Scholar 1975-1979

Publications

2003 :

Wisniewski, J.P., Morrison, N.D., Bjorkman, K.S., Miroshnichenko, A.S., Gault, A.C., Hoffman, J.L., Meade, M.R., and Nett, J.M., 2003, "Spectroscopic and Spectropolarimetric Observations of V838 Mon", ApJ, submitted.

Bjorkman, K.S., Bjorkman, J.E., and Wood, K., 2003, "A Spectropolarimetric Temperature Diagnostic for Ionized Disks", Ap.J., submitted.

2002 :

Chentsov, E.L., Ermakov, S.V., Klochkova, V.G., Panchuk, V.E., Bjorkman, K.S., & Miroshnichenko, A.S., 2002, "An Atlas of Spectra B6-A2 Hypergiants and Supergiants from 4800-6700Å", A&A, in press.

Miroshnichenko, A.S., Bjorkman, K.S., and Krugov, V.D., 2002, "High-resolution Spectroscopy of Gamma Cas. Long Term Variations and Binary Nature", P.A.S.P., 114, 1226.

Miroshnichenko, A.S., Klochkova, V.G., Bjorkman, K.S., and Panchuk, V.E., 2002, "Properties of Galactic B[e] Supergiants. I. CI Cam.", A&A, 390, 627.

Klochkova, V.G., Yushkin, M.V., Miroshnichenko, A.S., Panchuk, V.E., and Bjorkman, K.S., 2002, "Discovery of the Spectral Variations of the Optical Counterpart of IRAS 01005+7910", A.&A., 392, 143.

Miroshnichenko, A.S., Bjorkman, K.S., Chentsov, E.L., Klochkova, V.G., Manset, N., García-Lario, P., Perea Calderón, J.V., Rudy, R.J., Lynch, D.K., Wilson, J.C., and Gandet, T.L., 2002, "V669 Cep: A New Binary System with a B[e] Star", A.&A., 388, 563.

Bjorkman, K.S., Miroshnichenko, A.S., McDavid, D., and Pogrosheva, T.M., 2002, "A Study of Pi Aquarii During a Quasi-Normal Star Phase: Refined Fundamental Parameters and Evidence for Binarity", Ap.J., 573, 812 (PDF Version) (Postscript Version)

Miroshnichenko, A.S., Bjorkman, K.S., Chentsov, E.L., Klochkova, V.G., Ezhkova, O.V., Gray, R.O., García-Lario, P., Perea Calderón, J.V., Rudy, R.J., Lynch, D.K., Mazuk, S., and Puetter, R., 2002, "The Luminous B[e] Binary AS 381", A.&A., 383, 171.

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