The Orbits of the Gamma-ray Binaries LS I +61 303 and LS 5039 (2009)
Aragona, Christina, McSwain, M. Virginia, Grundstrom, Erika D., Marsh, Amber N., Roettenbacher, Rachael M., Hessler, Katelyn M., ...
LS I +61 303 and LS 5039 are two of only a handful of known high mass X-ray binaries (HMXBs) that exhibit very high energy emission in the MeV-TeV range, and these "gamma-ray binaries" are of renewed...
Wolff, Michael T., Ray, Paul S., Wood, Kent S., Hertz, Paul L.
We report our complete database of X-ray eclipse timings of the low mass X-ray binary EXO0748-676 observed by the Rossi X-Ray Timing Explorer (RXTE) satellite. As of this writing we have accumulated...
GCRT J1742-3001: A New Radio Transient Towards the Galactic Center (2008)
Hyman, Scott D., Wijnands, Rudy, Lazio, T. Joseph W., Pal, Sabyasachi, Starling, Rhaana, Kassim, Namir E., ...
We report the detection of a new transient radio source, GCRT J1742-3001, located ~1 degree from the Galactic center. The source was detected ten times from late 2006 to 2007 May in our 235 MHz...
The Advanced X-ray Timing Array (AXTAR) (2008)
Chakrabarty, Deepto, Ray, Paul S., Strohmayer, Tod E., Collaboration, For The AXTAR
AXTAR is an X-ray observatory mission concept, currently under study in the U.S., that combines very large collecting area, broadband spectral coverage, high time resolution, highly flexible...
A Bursting Radio Transient in the Direction of the Galactic Center (2008)
Ray, Paul S., Hyman, Scott D., Lazio, T. Joseph, Kassim, Namir E., Roy, Subhashis, Kaplan, David L., ...
The radio sky is poorly sampled for rapidly varying transients because of the narrow field-of-view of most imaging radio telescopes at cm and shorter wavelengths. The emergence of sensitive long...
A Pulsar Survey of 18 Supernova Remnants (2007)
Peter Gorham Paul, Paul S. Ray, Shrinivas R. Kulkarni, Thomas A. Prince
We have performed a pulsar search of 18 known or probable supernova remnants with the Arecibo 305-m radio telescope at 430 and 1420 MHz. The remnants were selected to have angular sizes less than or...
Much Ado About Nothing: Several Large-Area Surveys for Radio Pulsars from Arecibo (2007)
Paul S. Ray, S. R. Kulkarni, Thomas A. Prince, S. E. Thorsett, Gautam Vasisht, ...
We report surveyed regions and flux limits for several large-area surveys at 430 MHz for radio pulsars using the 305-m reflector at Arecibo, Puerto Rico. The surveys used integration times between 8...
DESIGN OF AN INTEGRATED HYBRID SYSTEM ARCHITECTURE FOR RISK ANALYSIS APPLICATIONS (2007)
Gary P. Moynihan, Daniel J. Fonseca, Paul S. Ray
The objective of this project was to establish a conceptual design for a hybrid system architecture for risk analysis. The design encompasses modules for both simulation (for project risk analysis)...
TRAUMATIC HAND INJURY ANALYSIS- AN APPLICATION OF CASE-CROSSOVER DESIGN (2007)
Paul S. Ray, Ramesh More, William H. Weems, Gary P. Moynihan, Robert G. Batson
*Corresponding author. National data sources reveal that about thirty two percent of emergency department visits are for hand injuries. Case-crossover design treats cases as its own control and...
Paul S. Ray, S. R. Kulkarni, Thomas A. Prince, S. E. Thorsett, Gautam Vasisht, ...
We report surveyed regions and flux limits for several large-area surveys at 430 MHz for radio pulsars using the 305-m reflector at Arecibo, Puerto Rico. The surveys used integration times between 8...
Possible Magnetic Activity in the Low Mass X-ray Binary EXO 0748-676 (2007)
Wolff, Michael T., Wood, Kent S., Ray, Paul S.
We report evidence of magnetic activity associated with the secondary star in the EXO 0748-676 low mass X-ray binary system. An analysis of a sequence of five consecutive X-ray eclipses observed...
Hartman, Jacob M., Patruno, Alessandro, Chakrabarty, Deepto, Kaplan, David L., Markwardt, Craig B., Morgan, Edward H., ...
We present a 7 yr timing study of the 2.5 ms X-ray pulsar SAX J1808.4-3658, an X-ray transient with a recurrence time of ~2 yr, using data from the Rossi X-ray Timing Explorer covering 4 transient...
A Faint, Steep Spectum Burst from the Radio Transient GCRT J1745-3009 (2007)
Hyman, Scott D., Roy, Subhashis, Pal, Sabyasachi, Lazio, T. Joseph W., Ray, Paul S., Kassim, Namir E., ...
GCRT J1745-3009 is a transient bursting radio source located in the direction of the Galactic center. It was discovered in a 330 MHz VLA observation from 2002 September 30--October 1 and subsequently...
A New Radio Detection of the Bursting Source GCRT J1745-3009 (2005)
Hyman, Scott D., Lazio, T. Joseph W., Roy, Subhashis, Ray, Paul S., Kassim, Namir E.
GCRT J1745-3009 is a transient bursting radio source located in the direction of the Galactic center, discovered in 330 MHz VLA observations from 2002 September 30--October 1 by Hyman et al. We have...
A Strong X-Ray Burst from the Low Mass X-Ray Binary EXO0748-676 (2005)
Wolff, Michael T., Becker, Peter A., Ray, Paul S., Wood, Kent S.
We have observed an unusually strong X-ray burst as a part of our regular eclipse timing observations of the low mass binary system EXO0748-676. The burst peak flux was 5.2x10^-8 ergs cm^-2 s^-1,...
An XTE Archival Search for Coherent X-ray Pulsations in LMXB 4U 1820-30 (2004)
Dib, Rim, Ransom, Scott M., Ray, Paul S., Kaspi, Victoria M., Archibald, Andrew M.
As part of a large-scale search for coherent pulsations from LMXBs in the RXTE archive, we have completed a detailed series of searches for coherent pulsations of 4U 1820-30 -- an ultracompact LMXB...
X-Ray Eclipse Timing in the LMXB EXO0748-676 (2004)
Wolff, Michael T., Ray, Paul S., Wood, Kent S.
Orbital period changes are an important diagnostic for understanding low mass X-ray binary (LMXB) accretion-induced angular momentum exchange and overall system evolution. We present our most recent...
Observation of X-ray variability in the BL Lac object 1ES1959+65 (2002)
Giebels, Berrie, Bloom, Elliott D., Focke, Warren, Godfrey, Gary, Madejski, Greg, Reilly, Kaice T., ...
This paper reports X-ray spectral observations of a relatively nearby z = 0.048 BL Lacertae (BL Lac) object 1ES1959+650, which is a potential TeV emitter. The observations include 31 short pointings...
Disk Diffusion Propagation Model for the Outburst of XTE J1118+480 (2001)
Wood, Kent S., Titarchuk, Lev, Ray, Paul S., Wolff, Michael T., Lovellette, Michael N., Bandyopadhyay, Reba M.
We present a linear diffusion model for the evolution of the double-peaked outburst in the transient source XTEJ1118+480. The model treats the two outbursts as episodic mass deposition at the outer...