Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR2.5k papers
- University of MichiganUS2.2k papers
- Brookhaven National LaboratoryUS2.2k papers
- University of California, BerkeleyUS2k papers
- Stony Brook UniversityUS2k papers
- Iowa State UniversityUS1.9k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR1.9k papers
- University of ChicagoUS1.9k papers
- University of WashingtonUS1.8k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR1.8k papers
- The University of TokyoJP1.8k papers
- University of ArizonaUS1.8k papers
120 papers · 2 filters
An AGN Identification for 3EG J2006-2321
P. M. Wallace, J. P. Halpern, A. M. Magalhaes +1
We present a multiwavelength analysis of the high-energy gamma-ray source 3EG J2006-2321. The flux of this source above 100 MeV is shown to be variable on time scales of days and m…
X-ray Radiation from the Millisecond Pulsar J0437-4715
V. E. Zavlin, G. G. Pavlov, D. Sanwal +4
We report on spectral and timing observations of the nearest millisecond pulsar J0437-4715 with Chandra. The pulsar spectrum, detected up to 7 keV, cannot be described by a simple…
Distant Cluster Hunting I: A Comparison Between the Optical and X-ray Luminosity Functions from an Optical/X-ray Survey
Megan Donahue, Jennifer Mack, Caleb Scharf +6
We present a comparison of X-ray and optical luminosities and luminosity functions of cluster candidates from a joint optical/X-ray survey, the ROSAT Optical X-Ray Survey. Complete…
Distant Cluster Hunting II: A comparison of X-ray and optical cluster detection techniques and catalogs from the ROX Survey
Megan Donahue, Caleb Scharf, Jennifer Mack +6
We present and analyze the optical and X-ray catalogs of moderate-redshift cluster candidates from the ROSAT Optical X-ray Survey, or ROXS. The survey covers 4.8 square degrees (23…
UV Imaging Polarimetry of the peculiar Seyfert 2 galaxy Mrk 477
Makoto Kishimoto, Laura E. Kay, Robert Antonucci +3
We present the results of UV imaging polarimetry of the Seyfert 2 galaxy Mrk 477 taken by the Faint Object Camera onboard the Hubble Space Telescope (HST). From a previous HST UV i…
Environment, Ram Pressure, and Shell Formation in HoII
M. Bureau, C. Carignan
Neutral hydrogen VLA D-array observations of the dwarf irregular galaxy HoII, a prototype galaxy for studies of shell formation, are presented. HI is detected to radii over 16' or…
XMM-Newton observations of MSH 14-63 (RCW 86)
Jacco Vink, Johan Bleeker, Jelle Kaastra +2
We present an analysis of the X-ray emission of the supernova remnant MSH14-63, which was partially covered by three observations with XMM-Newton. The detection of Fe K emission at…
Young Pulsars from the Parkes Multibeam Pulsar Survey and their Associations
R. N. Manchester, J. F. Bell, F. Camilo +9
The Parkes multibeam pulsar survey is covering a 10deg-wide strip of the southern Galactic plane from l=260deg to l=50deg. It utilizes a 13-beam receiver operating in the 20-cm ban…
Arecibo timing observations of 17 pulsars along the Galactic plane
Duncan R. Lorimer, Fernando Camilo, Kiraki Xilouris
We present phase-coherent timing solutions obtained for the first time for 17 pulsars discovered at Arecibo by Hulse & Taylor (1975ab) in a 430-MHz survey of the Galactic plane. Th…
Chandra Spectroscopy of Pulsars and their Wind Nebulae
E. V. Gotthelf, C. M. Olbert
We present preliminary results from a systematic spectral study of pulsars and their wind nebulae using the Chandra X-Ray Observatory. The superb spatial resolution of Chandra allo…
The Pulsar Wind Nebula of G11.2-0.3
M. S. E. Roberts, C. Tam, V. M. Kaspi +4
We present high-resolution radio and X-ray studies of the composite supernova remnant G11.2-0.3. Using archival VLA data, we perform radio spectral tomography to measure for the fi…
Hiccups in the night: X-ray monitoring of the two Crab-like LMC pulsars
E. V. Gotthelf, W. Zhang, F. E. Marshall +2
We are undertaking an extensive X-ray monitoring campaign of the two Crab-like pulsars in the Large Magellanic Clouds, PSR B0540-69 and PSR J0537-6910. We present our current phase…
15 Years Going Steady - Timing the Magnetar 1E 1841-045
E. V. Gotthelf, F. P. Gavriil, V. M. Kaspi +2
We report on a long-term monitoring campaign of 1E 1841-045, the 12-s anomalous X-ray pulsar and magnetar candidate at the center of the supernova remnant Kes 73. We have obtained…
The Role of Strangeness in Astrophysics - an Odyssey through Strange Phases
Jurgen Schaffner-Bielich
The equation of state for compact stars is reviewed with special emphasis on the role of strange hadrons, strange dibaryons and strange quark matter. Implications for the propertie…
Can a Dusty Warm Absorber Model Reproduce the Soft X-ray Spectra of MCG-6-30-15 and Mrk 766?
M. Sako, S. M. Kahn, G. Branduardi-Raymont +8
XMM-Newton RGS spectra of MCG-6-30-15 and Mrk 766 exhibit complex discrete structure, which was interpreted in a paper by Branduardi-Raymont et al. (2001) as evidence for the exist…
The WARPS Survey: VI. Galaxy Cluster and Source Identifications from Phase I
E. S. Perlman, D. J. Horner, L. R. Jones +4
We present in catalog form the optical identifications for objects from the first phase of the Wide Angle ROSAT Pointed Survey (WARPS). WARPS is a serendipitous survey of relativel…
The New Gamma-ray Pulsar PSR J2229+6114, its Pulsar Wind Nebula, and Comparison with the Vela Pulsar
J. P. Halpern, E. V. Gotthelf, F. Camilo +2
With a period of 51.6 ms and spin-down power 2.2x10^{37} erg s^{-1}, PSR J2229+6114 is a compelling identification for the EGRET source 3EG J2227+6122 in which error circle it resi…
X-ray Detection of Pulsar PSR B1757-24 and its Nebular Tail
V. M. Kaspi, E. V. Gotthelf, B. M. Gaensler +1
We report the first X-ray detection of the radio pulsar PSR B1757-24 using the Chandra X-ray Observatory. We detect point-source emission at the pulsar position plus a faint tail e…
Ram Pressure and Anomalous Shell Formation in HoII
M. Bureau, C. Carignan
Neutral hydrogen VLA D-array observations of the dwarf irregular galaxy HoII, a prototype galaxy for studies of shell formation, are presented. The large-scale HI morphology is rem…
Chandra Detection of a TypeII Quasar at z=3.288
Daniel Stern, Edward C. Moran, Alison L. Coil +16
We report on observations of a TypeII quasar at redshift z=3.288, identified as a hard X-ray source in a 185 ks observation with the Chandra X-ray Observatory and as a high-redshif…
The Ionized Stellar Wind in Vela X-1 During Eclipse
Norbert S. Schulz, Claude R. Canizares, Julia C. Lee +1
We present a first analysis of a high resolution X-ray spectrum of the ionized stellar wind of Vela X-1 during eclipse. The data were obtained with the High Energy Transmission Gra…
UV Imaging Polarimetry of the Seyfert 2 Galaxy Mrk 3
Makoto Kishimoto, Laura E. Kay, Robert Antonucci +3
We present UV imaging polarimetry data of the Seyfert 2 galaxy Mrk 3 taken by the Hubble Space Telescope. The polarized flux is found to be extended to ~1 kpc from the nucleus, and…
SNR G292.2-0.5: A Radio Supernova Remnant Associated with the Young Pulsar J1119-6127
F. Crawford, B. M. Gaensler, V. M. Kaspi +4
We report on Australia Telescope Compact Array observations in the direction of the young high-magnetic-field radio pulsar PSR J1119-6127. In the resulting images we identify a non…
How Neutral is the Intergalactic Medium at z ~ 6?
Adam Lidz, Lam Hui, Matias Zaldarriaga +1
Recent observations of high redshift quasar spectra reveal long gaps with little flux. A small or no detectable flux does not by itself imply the intergalactic medium (IGM) is neut…