Caleb Scharf: Difference between revisions
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'''Caleb Scharf''' is a British-born astronomer and the director of the multidisciplinary Columbia Astrobiology Center at [[Columbia University]], New York.<ref>{{cite web|url=http://www.astro.columbia.edu/profile?uid=caleb|website=Columbia University, Department of Astronomy |title=Caleb Scharf: Research Scientist}}</ref> He received a B.Sc. in Physics from [[Durham University]] and a PhD in Astronomy from the [[University of Cambridge]]; he did postdoctoral work in X-ray astronomy and observational cosmology at the NASA [[Goddard Space Flight Center]]<ref>{{cite web|title=NASA GISS To Help Lead Search for Habitable Exoplanets|url=http://www.giss.nasa.gov/research/news/20150421/|website=NASA, Goddard Institute for Space Studies|publisher=NASA}}</ref> and the [[Space Telescope Science Institute]] in Maryland.
He has an extensive research record in [[observational cosmology]] but more recently works on topics in [[exoplanetary science]] and [[astrobiology]].<ref>{{cite web|url=http://www.calebscharf.com/about/|website=Caleb Scharf |title=Caleb Scharf: Director of Astrobiology Columbia University}}</ref> He is the author of the upper-level undergraduate textbook ''Extrasolar Planets and Astrobiology'',<ref>[http://www.astro.columbia.edu/EXPA]</ref> published in 2008 by University Science [https://ghostwriterinside.com/ Books], CA. This book won the 2011 Chambliss Astronomical Writing Award and medal from the [[American Astronomical Society]]. He has many published professional papers in peer-reviewed journals, with 109 papers listed in the SAO/NASA Astrophysics Data System (ADS); three have been cited over 100 times each: the highest counts{{when?|date=August 2016}} are 264<ref>Mushotzky, R. F.; Scharf, C. A., The Luminosity-Temperature Relation at z=0.4 for Clusters of Galaxies</ref> 139,<ref>Horner, Donald J.; Mushotzky, Richard F.; Scharf, Caleb A. Observational Tests of the Mass-Temperature Relation for Galaxy Clusters</ref> 116,<ref>Scharf, C. A.; Jones, L. R.; Ebeling, H.; Perlman, E.; Malkan, M.; Wegner, G. The Wide-Angle ROSAT Pointed X-Ray Survey of Galaxies, Groups, and Clusters. I. Method and First Results</ref> all in ''[[The Astrophysical Journal]]''.<!--Counts are accurate as of when? Is it particularly relevant to include these precise numbers?-->
His blog ''Life, Unbounded'' appears at ''[[Scientific American]]'' and covers topics in astronomy, exoplanetary science, and astrobiology.
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