Stephen P. Boughn

Combined analysis of the integrated Sachs-Wolfe effect and cosmological implications (2008)

Giannantonio, Tommaso, Scranton, Ryan, Crittenden, Robert G., Nichol, Robert C., Boughn, Stephen P., Myers, Adam D., ...

We present a global measurement of the integrated Sachs-Wolfe (ISW) effect obtained by cross-correlating all relevant large scale galaxy data sets with the cosmic microwave background radiation map...

On Radio and X-ray Emission Mechanisms in Nearby, X-ray Bright Galactic Nuclei (1999)

Yi, Insu, Boughn, Stephen P.

It has been suggested that advection-dominated accretion flows (ADAFs) are responsible for the X-ray activity in nearby galactic nuclei. These X-ray bright galactic nuclei (XBGN) are a heterogeneous...

Evidence for Hot, Diffuse Gas in the Local Supercluster (1998)

Boughn, Stephen P.

Using the HEAO1 A2 full sky, 2-10 keV X-ray map evidence is found for the presence of diffuse X-ray emission in the plane of the local supercluster. Fitting this diffuse component with a simple...

Hard X-rays from Emission Line Galaxies and the X-ray Background: A Test for Advection Dominated Accretion with Radio Sources (1997)

Yi, Insu, Boughn, Stephen P.

Recent studies of the cosmic X-ray background (XRB) have suggested the possible existence of a population of relatively faint sources with hard X-ray spectra; however, the emission mechanism remains...

Cross-correlation of the 2-10 keV XRB with radio sources: constraining the large-scale structure of the x-ray background (1997)

Boughn, Stephen P.

We present cross-correlation analyses of the HEAO 2-10 keV diffuse X-ray map with both the combined GB6/Parkes-MIT-NRAO (GB6-PMN) 5 GHz and the FIRST 1.4 GHz radio surveys. The cross-correlation...