An Unbiased Survey of X-ray and Optical Emission from Extended Radio Jets in AGN with Chandra and HST
The Chandra discovery of an X-ray bright jet in the "first light" distant quasar PKS 0637-752 showed that the X-rays can be energetically dominant even at large...
Three of the best determinations of the primordial helium abundance (Yp) are those obtained from low metallicity HII regions by Aver, Olive, Porter, & Skillman...
We are reporting the updates in version 0.2.0 of the Automated SpectroPhotometric REDuction (ASPIRED) pipeline, designed for common use on different instruments...
An upper limit to the Beryllium abundance in the population 2 star HD 140283 from a high resoluion IUE spectrum
An IUE archive spectrum of HD 140283 has been analyzed in the region of the 3131 Å 9Be II resonance doublet. Close comparison of the observed and synthetic...
An UXor among FUors: extinction-related brightness variations of the young eruptive star V582 Aur
The early evolution of Sun-like stars may be interspersed by energetic FU Orionis (FUor) type accretion outbursts. We analysed eight years of photometric and...
An X-ray survey of extragalactic radio jets with Chandra
We are performing a survey of a sample of 17 radio jets with Chandra and HST, with the aim of finding their X-ray and optical counterparts. In this paper, we...
An XMM-Newton view of a small sample of Seyfert, 1 Galaxies
We present a detailed analysis of all the X-ray data taken by the XMM-Newton satellite of a small sample of five Seyfert 1 galaxies: ESO 359-G19, HE 1143-1810...