Tom Bolton Astronomer

Charles Thomas or Tom Bolton (born 1943) is an American astronomer who was the first astronomer to present strong evidence of the existence of a black hole. Bolton received his Bachelor’s in 1966 from the University of Illinois, followed by a 1968 Master’s and a 1970 doctoral degrees from the University of Michigan. Bolton then worked as a postdoctoral researcher at the David Dunlap Observatory, teaching there until 1972. He taught at Scarborough College from 1971 to 1972, and at Erindale College from 1972 to 1973, but since 1973, has been affiliated with the University of Toronto astronomy department, where he is now an emeritus professor. In 1971, as a post-doctoral fellow and part-time faculty member studying binary systems at the Dunlap Observatory, Bolton observed star HDE 226868 wobble as if it was orbiting around an invisible but massive companion emitting powerful X-rays, independently of the work by Louise Webster and Paul Murdin, at the Royal Greenwich Observatory. Further analysis gave an estimate about the amount of mass needed for the gravitational pull, which proved to be too much for a neutron star.

Personal details

Date of birth
Place of birth
Camp Forrest


1. University of Illinois at Urbana–Champaign Colleges/University

The University of Illinois at Urbana–Champaign (U of I, University of Illinois, UIUC, or simply Illinois) is a large public research-intensive university in the US state of Illinois. It is the flagship campus of the University of Illinois system. The University of Illinois at Urbana–Champaign is the second oldest public university in the state, second to Illinois State University, and is a founding member of the Big Ten Conference. It is considered a Public Ivy and is a member of the Association of American Universities. The university is designated as a RU/VH Research University (very high research activities). The campus library system possesses the second-largest university library in the United States and the fifth-largest in the country overall.

Type Public university
2012. 1.16 bil. $
2010. 956 mil. $
Institution colors
610 East John Street, 300 Turner Student Services Building, 61820 - Champaign, Illinois
2012. 32,281
2010. 31,540
2009. 31,473
2012. 12,239
2010. 12,322
Acceptance rate
2012. 63.3 %
2011. 67.6 %
2010. 68.0 %
Local tuition
2013. 15.3 K $
2011. 13.8 K $
2010. 13.1 K $
2009. 12.1 K $
2008. 11.7 K $
Official web page
Wikipedia article

Institution social analysis

Notable alumni by career
Notable alumni by gender
Notable alumni by party membership

People attended University of Illinois at Urbana–Champaign connected by profession and/or age

b. 1931., Astronomer
b. 1926., Astronomer
b. 1943., Military Person
b. 1944., Politician
b. 1939., American Football Guard
b. 1946., Lawyer
b. 1947., U.S. Congressperson
b. 1947., Organization founder


Check Tom Bolton on wikipedia.

Facebook comments