Natalie Gosnell
Graduate Student
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Office: 6283C Chamberlin Hall
Research Interests:
I am interested in how close stellar encounters dynamically alter the population of open clusters. In particular, I focus on the role of dynamics in the creation of X-ray binaries in open clusters, as well as how dynamics may take part in the formation of blue straggler stars.
Biography:
I am a fourth-year graduate student working with Professor Bob Mathieu. I also collaborate closely with Dr. Dave Pooley at Sam Houston State University.
I received my B.A. in Physics from Colorado College in May 2008 and my M.S. in Astronomy from UW - Madison in May 2010. My dissertation topic focuses on observational evidence for close stellar encounters in open clusters, focusing on the X-ray binary and blue straggler populations. Our research group was awarded HST time to obtain far-UV imaging of the blue straggler population of NGC 188. The far-UV data may provide evidence that the blue stragglers in NGC 188 exist in blue straggler-white dwarf binaries, which would be indicative of a mass transfer formation scenario. I am also completing a survey of X-ray sources in open clusters using data from XMM - Newton, searching for possible trends between the number of X-ray binaries and the cluster dynamical encounter frequency.
In the Fall of 2011 I was a teaching assistant for Astronomy 113, Hands on the Universe, with Professor Snezana Stanimirovic. In the Spring of 2009 I was the Teaching Assistant for Astronomy 103 taught by Professor Jay Gallagher. I also regularly mentor students in the department's summer REU program.
My Publications
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An Unexpected Discovery in the Rich Open Cluster NGC 6819 Using XMM-Newton
Gosnell, N., Pooley, D., Geller, A., Kalirai, J., Mathieu, R., et al., 2012
The Astrophysical Journal, Vol. 745, Pages 57
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WIYN Open Cluster Study: Orbital Solutions for Hard Binaries of NGC 6819
Milliman, K., Mathieu, R., Geller, A., Gosnell, N., Meibom, S., 2012
Conference Proceedings in "American Astronomical Society, AAS Meeting #219, #153.36" Pages
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Finzell, T., Geller, A., Gosnell, N., Mathieu, R., 2011
Conference Proceedings in "American Astronomical Society, AAS Meeting #217, #144.17" Pages 14417
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X-ray Sources of the Young Open Cluster M35
Mahmoud, A., Gosnell, N., Mathieu, R., Pooley, D., Kalirai, J., 2010
Conference Proceedings in "American Astronomical Society, AAS Meeting #215, #478.01" Pages 565
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X-ray Sources in the Rich Open Cluster NGC 6819
Gosnell, N., Frinchaboy, P., Geller, A., Kalirai, J., Mathieu, R., et al., 2009
Conference Proceedings in "Chandra's First Decade of Discovery" Pages 112
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