Another major change in the radio source associated with CYG X-1

Details Another major change in the radio source associated with CYG X-1 Another major change in the radio source associated with CYG X-1

Jul 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975natur.256..111h&link_type=abstract

Nature, vol. 256, July 10, 1975, p. 111, 112.

Astronomy and Astrophysics

Astronomy

17

Radiant Flux Density, Radio Sources (Astronomy), Stellar Radiation, Variable Stars, X Ray Astronomy, X Ray Stars, Binary Stars, Black Holes (Astronomy), Radio Stars

Scientific paper

The sudden appearance of a faint radio source inside the probable position region for the X-ray source Cyg X-1 was associated with major changes in the X-ray emission observed during the period February-May 1971. The accurate position of the radio source led to an identification with the bright, blue star HDE226868. Optical investigations have established this object to be a binary system with a massive, invisible component that may be a black hole. One of the major characteristics of the Cyg X-1 radio source between March 31, 1971 and March 1975 is a flat radio spectrum, a spectral index of 0. The mean daily levels of Cyg X-1 during the period May 9 to May 20, 1975 are 0.031 Jy at 8,085 MHz, and 0.002 Jy at 2,695 MHz, representing a new state for the radio source.

Affiliated with

Also associated with

No associations

Rating

Another major change in the radio source associated with CYG X-1 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Another major change in the radio source associated with CYG X-1, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Another major change in the radio source associated with CYG X-1 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1757123