Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR3k papers
- California Institute of TechnologyUS2.8k papers
- Massachusetts Institute of TechnologyUS2.5k papers
- Princeton UniversityUS2.4k papers
- The Ohio State UniversityUS2.4k papers
- University of Wisconsin–MadisonUS2.4k papers
- Space Telescope Science InstituteUS2.4k papers
- University of California, Los AngelesUS2.2k papers
- University of Maryland, College ParkUS2.2k papers
- Fermi National Accelerator LaboratoryUS2k papers
- University of California, Santa BarbaraUS2k papers
- Rutgers, The State University of New JerseyUS2k papers
224 papers · 1 filter
Starburst Clusters in Galactic Nuclei
Donald F. Figer, Mark Morris
Galactic nuclei often harbor a disproportionately large amount of star formation activity with respect to their surrounding disks. Not coincidentally, the density of molecular mate…
Colors of 2625 Quasars at 0<z<5 Measured in the Sloan Digital Sky Survey Photometric System
Gordon T. Richards, Xiaohui Fan, Donald P. Schneider +3
We present an empirical investigation of the colors of quasars in the Sloan Digital Sky Survey (SDSS) photometric system. The sample studied includes 2625 quasars with SDSS photome…
FUSE Observations of an X-Ray Bright Region in the Vela Supernova Remnant
Ravi Sankrit, R. L. Shelton, W. P. Blair +2
We present the results of a FUSE observation of an X-ray selected knot in the Vela supernova remnant. Spectra were obtained through the 30"x30" low resolution aperture and the 4"x2…
Hierarchy Stabilization in Warped Supersymmetry
Markus A. Luty, Raman Sundrum
We show that exponentially large warp factor hierarchies can be dynamically generated in supersymmetric compactifications. The compactification we consider is the supersymmetric ex…
Final Results from the Hubble Space Telescope Key Project to Measure the Hubble Constant
W. L. Freedman, B. F. Madore, B. K. Gibson +12
We present here the final results of the Hubble Space Telescope Key Project to measure the Hubble constant. We summarize our method, the results and the uncertainties, tabulate our…
Ultraviolet Line Spectra of Metal-Poor Star-Forming Galaxies
Claus Leitherer, Joao Leao, Tim Heckman +3
We present synthetic ultraviolet spectra of metal-poor star-forming galaxies which were calculated with the Starburst99 package. A new spectral library was generated from HST obser…
The Interstellar Medium of Star-forming Irregular Galaxies: The View with ISO
D. Hunter, M. Kaufman, D. Hollenbach +8
We present mid-infrared imaging and far-infrared (FIR) spectroscopy of 5 IBm galaxies observed by ISO as part of our larger study of the inter- stellar medium of galaxies. Most of…
Effects from the charm scale in K+ -> pi+ nu nubar
Adam F. Falk, Adam Lewandowski, Alexey A. Petrov
We consider contributions to the rare decay K+ -> pi+ nu nubar which become nonlocal at the charm scale. Compared to the leading term, such amplitudes are suppressed by two powers…
Fast Algorithms and Efficient Statistics: N-point Correlation Functions
Andrew Moore, Andy Connolly, Chris Genovese +8
We present here a new algorithm for the fast computation of N-point correlation functions in large astronomical data sets. The algorithm is based on kdtrees which are decorated wit…
Detection of massive tidal tails around the globular cluster Pal 5 with SDSS commissioning data
M. Odenkirchen, E. K. Grebel, C. M. Rockosi +17
We report the discovery of two well-defined tidal tails emerging from the sparse remote globular cluster Palomar 5. These tails stretch out symmetrically to both sides of the clust…
The Merging History of the Milky Way Disk
Rosemary F. G. Wyse
The stellar populations of the stellar halo and of the thick disk of the Milky Way reveal much about the merging history that our Galaxy, a typical large disk galaxy, has experienc…
First Measurement of the Ratio B(t-->Wb)/B(t-->Wq) and Associated Limit on the CKM Element Vtb
CDF Collaboration
We present the first measurement of the ratio of branching fraction R= B(t-->wb)/B(t-->Wq) from ppbar collisions at sqrt(s)=1.8 TeV. The data set corresponds to 109 pb-1 of data re…
Discovery of a very X-ray luminous galaxy cluster at z=0.89 in the WARPS survey
H. Ebeling, L. R. Jones, B. W. Fairley +3
We report the discovery of the galaxy cluster ClJ1226.9+3332 in the Wide Angle ROSAT Pointed Survey (WARPS). At z=0.888 and L_X=1.1e45 erg/s (0.5-2.0 keV, h_0=0.5) ClJ1226.9+3332 i…
The nuclear cusp slopes of dwarf elliptical galaxies
M. Stiavelli, B. W. Miller, H. C. Ferguson +3
We derive the light profiles for a sample of 25 dwarf elliptical galaxies observed by us with HST/WFPC2 in F555W and F814W. These profiles are fitted with Nuker, R^1/4, exponential…
Parsec-Scale Jets and Tori in Seyfert Galaxies
A. L. Roy, J. M. Wrobel, A. S. Wilson +6
What causes the dichotomy between very powerful and very weak radio emission from AGNs? Perhaps the engines are the same but the jets get disrupted by dense ISM in radio-quiet obje…
The black hole mass vs bulge mass relationship in spiral galaxies
A. Marconi, D. Axon, J. Atkinson +15
We describe an on-going HST program aimed at determining the relationship between the nuclear black hole mass and bulge mass in spiral galaxies. We have selected a volume limited s…
Systematic Errors in the Estimation of Black Hole Masses by Reverberation Mapping
Julian H. Krolik
The mass of the central black hole in many active galactic nuclei has been estimated on the basis of the assumption that the dynamics of the broad emission line gas are dominated b…
Chandra Grating Spectroscopy of the Seyfert Galaxy Ton S180
T. J. Turner, I. M. George, T. Yaqoob +6
This paper presents results from spectral observations of Ton S180 using Chandra and ASCA. The data confirm the presence of the soft excess but the Chandra LETG spectrum reveals it…
Measurement of the Two-Jet Differential Cross Section in proton-antiproton Collisions at sqrt{s} = 1800 GeV
CDF Collaboration
A measurement is presented of the two-jet differential cross section, d^3σ/dE_T dη_1 dη_2, at center of mass energy sqrt{s} = 1800 GeV in proton-antiproton collisions. The results…
The Optical-Near-IR Spectrum of the M87 Jet From HST Observations
Eric S. Perlman, John Biretta, William Sparks +2
We present 1998 HST observations of M87 which yield the first single-epoch optical and radio-optical spectral index images of the jet at resolution. We find $<α_{ro} > \ap…
High-Redshift Quasars Found in Sloan Digital Sky Survey Commissioning Data V. Hobby-Eberly Telescope Observations
Donald P. Schneider, Xiaohui Fan, Michael A. Strauss +5
We report the discovery of 27 quasars with redshifts between 3.58 and 4.49. The objects were identified as high-redshift candidates based on their colors in Sloan Digital Sky Surve…
Terapixel Surveys for Cosmic Shear
Y. Mellier, L. van Waerbeke, M. Radovich +14
The recent detections of cosmic shear signal announced by several groups have demonstrated the feasibility of this challenging program and convinced astro- nomers of its potential…
Supersymmetric Radion in the Randall-Sundrum Scenario
Jonathan Bagger, Dennis Nemeschansky, Ren-Jie Zhang
We derive the effective action for the radion supermultiplet in the supersymmetric Randall-Sundrum model with two opposite tension branes.
The 2dF Galaxy Redshift Survey: Near Infrared Galaxy Luminosity Functions
Shaun Cole, Peder Norberg, Carlton Baugh +24
We combine the 2MASS extended source catalogue and the 2dFGRS to produce an IR selected galaxy catalogue with 17,173 measured redshifts. We use this extensive dataset to estimate t…