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- Pennsylvania State UniversityUS12 papers
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8 papers · 1 filter
Probing the Extended Gaseous Regions of M31 with Quasar Absorption Lines
Sandhya Rao, Gendith Sardane, David Turnshek +4
We present HST-COS spectra of ten quasars located behind M31, selected to investigate the properties of gas associated with its extended disk and high velocity clouds (HVCs). The s…
A Quasar Catalog with Simultaneous UV, Optical and X-ray Observations by Swift
Jian Wu, Daniel Vanden Berk, Dirk Grupe +6
We have compiled a catalog of optically-selected quasars with simultaneous observations in UV/optical and X-ray bands by the Swift Gamma Ray Burst Explorer. Objects in this catalog…
Exploring the dust content of SDSS DR7 damped Lyman alpha systems at 2.155.2
Pushpa Khare, Daniel Vanden Berk, Donald G. York +2
We have studied a sample of 1084 intervening absorption systems with 2.155.2, having log(N) 20.0 in the spectra of QSOs in Sloan Digital Sky Survey (S…
Swift UV/Optical Telescope Imaging of Star Forming Regions in M81 and Holmberg IX
E. A. Hoversten, C. Gronwall, D. E. Vanden Berk +7
We present Swift UV/Optical Telescope (UVOT) imaging of the galaxies M81 and Holmberg IX. We combine UVOT imaging in three near ultraviolet (NUV) filters (uvw2: 1928 Å, uvm2: 2246…
Near-Ultraviolet Properties of a Large Sample of Type Ia Supernovae as Observed with the Swift UVOT
Peter A. Milne, Peter J. Brown, Peter W. A. Roming +15
We present ultraviolet (UV) and optical photometry of 26 Type Ia supernovae (SNe~Ia) observed from March 2005 to March 2008 with the NASA {\it Swift} Ultraviolet and Optical Telesc…
The Absolute Magnitudes of Type Ia Supernovae in the Ultraviolet
Peter J. Brown, Peter W. A. Roming, Peter Milne +19
We examine the absolute magnitudes and light-curve shapes of 14 nearby(redshift z = 0.004--0.027) Type Ia supernovae (SNe~Ia) observed in the ultraviolet (UV) with the Swift Ultrav…