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Faint Source Counts from Off-source Fluctuation Analysis on Chandra Observations of the Hubble Deep Field-North
Takamitsu Miyaji, Richard E. Griffiths
We report the results of fluctuation analysis of the off-source field from the 1 Million second Chandra observation of the Hubble Deep Field-North (HDF-N). The distribution of the…
First Results from the XMM-Newton Observation in the Groth-Westphal Survey Strip Region
T. Miyaji, R. E. Griffiths
We present the first results of the XMM-Newton observation on the Groth-Westphal Strip Field. The scheduled exposure time was 70 [ks]. We first analyzed about 50 [ks] of calibrated…
Resolving the X-ray Spectral Paradox: XMM-Newton Spectra of Faint Sources in the Lockman Hole
R. E. Griffiths, A. Ptak, T. Miyaji
Using 100ks of XMM-Newton data on the Lockman Hole, we show how the X-ray background 'spectral paradox' is being resolved. We find the summed spectra of the Type I AGN, Type II AGN…
Investigation of Gravitational Lens Mass Models
Adam Knudson, Kavan U. Ratnatunga, Richard E. Griffith
We have previously reported the discovery of strong gravitational lensing by faint elliptical galaxies using the WFPC2 on HST and here we investigate their potential usefulness in…