A New Method to Determine the Distances of Variable Galactic X-Ray Sources

Details A New Method to Determine the Distances of Variable Galactic X-Ray Sources A New Method to Determine the Distances of Variable Galactic X-Ray Sources

Oct 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004apj...614l..45h&link_type=abstract

The Astrophysical Journal, Volume 614, Issue 1, pp. L45-L48.

Astronomy and Astrophysics

Astronomy

5

Ism: Dust, Extinction, Scattering, X-Rays: Ism

Scientific paper

We have developed a timing analysis method to determine the distances of variable Galactic X-ray sources based on the method advanced by Trümper and Schönfelder in 1973. The light curve of the halo produced by the scattering of X-rays off the interstellar dust is delayed and smeared. The differences between the power density spectra of the point source and the halo contains the information of X-ray source distance and dust distribution along the line of sight. We present the details of this method and demonstrate its validity for the future X-ray astronomy instruments by simulations.

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