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
130 papers · 2 filters
Search for Point Sources of Ultra-High Energy Cosmic Rays Above 40 EeV Using a Maximum Likelihood Ratio Test
s Eye Collaboration, G. R. Farrar
We present the results of a search for cosmic ray point sources at energies above 40 EeV in the combined data sets recorded by the AGASA and HiRes stereo experiments. The analysis…
Evolution of the Solar Activity over Time and Effects on Planetary Atmospheres: I. High-energy Irradiances (1-1700 A)
I. Ribas, E. F. Guinan, M. Guedel +1
We report on the results of the Sun in Time multi-wavelength program (X-rays to the UV) of solar analogs with ages covering ~0.1-7 Gyr. The chief science goals are to study the sol…
The Helium-Rich Cataclysmic Variable ES Ceti
Catherine Espaillat, Joseph Patterson, Brian Warner +1
We report photometry of the helium-rich cataclysmic variable ES Ceti during 2001-2004. The star is roughly stable at V ~ 17.0 and has a light curve dominated by a single period of…
PSR J1756-2251: a new relativistic double neutron star system
A. J. Faulkner, M. Kramer, A. G. Lyne +9
We report the discovery during the Parkes Multibeam Pulsar Survey of PSR J1756-2251, a 28.5 ms pulsar in a relativistic binary system. Subsequent timing observations showed the pul…
Identification of an Extended Accretion Disk Corona in the Hercules X-1 Low State: Moderate Optical Depth, Precise Density Determination, and Verification of CNO Abundances
Mario A. Jimenez-Garate, John C. Raymond, Duane A. Liedahl +1
We identify an accretion disk atmosphere and corona from the high resolution X-ray spectrum of Hercules X-1, and we determine its detailed physical properties. More than two dozen…
Optical and GeV-TeV flashes from gamma-ray bursts
Andrei M. Beloborodov
The synchrotron optical flash caught in GRB 990123 overlaps with the MeV radiation front, and the optical-emitting electrons must also produce GeV-TeV emission by inverse Compton s…
The GALEX-VVDS Measurement of the Evolution of the Far-Ultraviolet Luminosity Density and the Cosmic Star Formation Rate
D. Schiminovich, O. Ilbert, S. Arnouts +10
In a companion paper (Arnouts et al. 2004) we presented new measurements of the galaxy luminosity function at 1500 Angstroms out to z~1 using GALEX-VVDS observations (1039 galaxies…
The GALEX-VVDS Measurement of the Evolution of the 1500A Luminosity Function
S. Arnouts, D. Schiminovich, O. Ilbert +8
We present the first measurement of the galaxy luminosity function at 1500A between 0.2<z<1.2 based on GALEX-VVDS observations (1000 spectroscopic redshifts for galaxies with NUV<2…
UV Emission from Stellar Populations within Tidal Tails: Catching the Youngest Galaxies in Formation?
S. G. Neff, D. A. Thilker, M. Seibert +22
New GALEX observations have detected significant FUV (1530 Angstroms) and NUV (2310 Angstroms) emission from stellar substructures within the tidal tails of four ongoing galaxy mer…
The UV Galaxy Luminosity Function in the Local Universe from GALEX Data
Ted K. Wyder, Marie A. Treyer, Bruno Milliard +22
We present the results of a determination of the galaxy luminosity function at ultraviolet wavelengths at redshifts of from GALEX data. We determined the luminosity fun…
UV Morphology and Star Formation in the Tidal Tails of NGC 4038/39
J. E. Hibbard, L. Bianchi, D. A. Thilker +2
We present GALEX FUV (1530 A) and NUV (2310 A) observations of the archetypal merging system NGC 4038/39, ``The Antennae". Both tails are relatively bright in the UV, especially in…
GALEX UV Color-Magnitude Relations and Evidence for Recent Star Formation in Early-type Galaxies
S Yi, SJ Yoon, S Kaviraj +32
We have used the GALEX UV photometric data to construct a first near-ultraviolet (NUV) color-magnitude relation (CMR) for the galaxies pre-classified as early-type by SDSS studies.…
The Ultraviolet Luminosity Function of GALEX Galaxies at Photometric Redshifts Between 0.07 and 0.25
T. Budavari, A. S. Szalay, S. Charlot +24
We present measurements of the UV galaxy luminosity function and the evolution of luminosity density from GALEX observations matched to the Sloan Digital Sky Survey (SDSS). We anal…
XMM-Newton observations of the heavily absorbed Seyfert 1 galaxy IC 4329A
K. C. Steenbrugge, J. S. Kaastra, M. Sako +5
We detect seven distinct absorbing systems in the high-resolution X-ray spectrum of the Seyfert 1 galaxy IC 4329A, taken with XMM-Newton. Firstly we detect absorption due to cold g…
Angular Correlation Estimates for Ultrahigh Energy Cosmic Rays
Chad Finley
Anisotropy in arrival directions of ultrahigh energy cosmic rays offers the most direct way to search for the sources of these particles. We present estimates of the angular correl…
From gas to galaxies
J. M. van der Hulst, E. M. Sadler, C. A. Jackson +3
The unsurpassed sensitivity and resolution of the Square Kilometer Array (SKA) will make it possible for the first time to probe the continuum emission of normal star forming galax…
Constraining Reionization with the Evolution of the Luminosity Function of Lyman Alpha mitting Galaxies
Zoltan Haiman, Renyue Cen
At redshifts beyond z>6, as the mean fraction of neutral hydrogen x_HI in the intergalactic medium (IGM) increases, the line flux of Lyman alpha (Lya) emitters can be significantly…
The X-ray Afterglow of Dark GRB 970815: A Common Origin for GRBs and XRFs?
N. Mirabal, J. P. Halpern, E. V. Gotthelf +1
GRB 970815 was a well-localized gamma-ray burst (GRB) detected by the All-Sky Monitor (ASM) on the Rossi X-Ray Timing Explorer (RXTE) for which no afterglow was identified despite…
Relationship between X-ray and ultraviolet emission of flares from dMe stars observed by XMM-Newton
U. Mitra-Kraev, L. K. Harra, M. Guedel +6
We present simultaneous ultraviolet and X-ray observations of the dMe-type flaring stars AT Mic, AU Mic, EV Lac, UV Cet and YZ CMi obtained with the XMM-Newton observatory. During…
Quiescent observations of the WZ Sge type dwarf nova PQ Andromedae
Greg J. Schwarz, Travis Barman, Nicole Silvestri +4
We have obtained time series optical spectra of the cataclysmic variable PQ And in quiescence. The spectra show a white dwarf continuum with narrow Balmer emission superimposed ove…
Ram Pressure Stripping in the Low Luminosity Virgo Cluster Elliptical Galaxy NGC 4476
D. M. Lucero, L. M. Young, J. H. van Gorkom
We present a deep VLA search for HI emission from the low-luminosity Virgo Cluster elliptical galaxy NGC 4476, which contains 1.1 x 10^8 M_sun of molecular gas in an undisturbed di…
Stellar Mass Spectra from Non-Isothermal Gravoturbulent Fragmentation
R. S. Klessen, A. -K. Jappsen, R. B. Larson +2
(abridged version) Identifying the processes that determine the initial mass function of stars (IMF) is a fundamental problem in star formation theory. One of the major uncertainti…
A New Catalog of Radio Compact HII Regions in the Milky Way
Uriel Giveon, Robert H. Becker, David J. Helfand +1
We utilize new VLA Galactic plane catalogs at 5 and 1.4 GHz covering the first Galactic quadrant (350<l<42, |b|<0.4) in conjunction with the MSX6C Galactic plane catalog to constru…
X-Ray Detection of an Obscured Active Galactic Nucleus in a z=3.09 Radio-quiet Ly-alpha Nebula
Antara Basu-Zych, Caleb Scharf
We present evidence for a highly obscured X-ray source in one of two giant Ly-alpha emission nebulae in the z=3.09 proto-cluster region SSA22. Neither Ly-alpha nebula is associated…