Astronomy and Astrophysics – Astronomy
Scientific paper
May 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992stin...9225504e&link_type=abstract
Thesis Haverford Coll., PA.
Astronomy and Astrophysics
Astronomy
Anisotropy, Background Radiation, Cosmic X Rays, Declination, Dipole Moments, Earth Rotation, Microwaves, Doppler Effect, Error Analysis, Heao 1, Radiation Sources, Sky Surveys (Astronomy), Stellar Spectra, X Ray Astronomy, X Ray Spectra
Scientific paper
X ray data was analyzed which was obtained by the HEAO-1 A2 satellite in order to look for large scale structure in the Cosmic X ray Background. The dipole moment of the x ray background is deltaI/I = (1.87 + or - .34)x 10-2 in a direction, declination = 3.6 + or - 9.4 deg and right ascension = 15.9 + or - .2 hr. This implies a velocity of the Earth with respect to the background of 409.2 + or - 74.4 km/s in the same direction. Comparatively, measurements of the dipole anisotropy of the Cosmic Microwave Background imply a velocity of 369.2 + or - 4 km/s in a direction, declination = 6 + or - 1 deg and right ascension = 11.2 + or - .1 hr. Quoted errors are statistical only. The disparity between the velocities of the x ray dipole and microwave dipole may be due to residual structure in the x ray sky or as yet undiscovered systematic errors.
No associations
LandOfFree
A search for the dipole anisotropy of the Cosmic X ray background 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 A search for the dipole anisotropy of the Cosmic X ray background, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A search for the dipole anisotropy of the Cosmic X ray background will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1520605