Halton Christian Arp is an American astronomer. He was born born March 21 1927 in New York city. His bachelor's degree was awarded by Harvard (1949), and his Ph.D. from CalTech (1953). Afterward he became a Fellow of the Carnegie Institution of Washington in 1953, performing research at the Mount Wilson Observatory and Palomar Observatory.

He became a Research Assistant at Indiana University in 1955. In 1957 he became a staff member at Palomar Observatory, where he worked for 29 years. In 1983 he joined the staff of the Max Plank Institute in Germany.

Arp is known for his controversial theories that redshifts of astronomical objects such as quasars do not indicate great distance, and for disputing the Big Bang theory; his theories are outside the scientific mainstream. He also compiled a catalog of unusual galaxies: Atlas of Peculiar Galaxies.

In 1960, Arp was awarded the Helen B. Warner Prize for Astronomy by the American Astronomical Society.

See also

• Main : Controversial book (Quasar, Redshifts and Controversies)
• List of astronomical topics : Quasar
• Cosmology : Non-standard cosmology, Steady state theory, Plasma cosmology, LeSage (gravity), Big Bang
• Other : Pathological science, Helen B. Warner Prize for Astronomy

External link

• Halton Arp's Website