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 UniversityUS2.5k 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
126 papers · 1 filter
The Surface Brightness Fluctuations and Globular Cluster Populations of M87 and its Companions
Eric H. Neilsen, Zlatan I. Tsvetanov, Holland C. Ford
Using the surface brightness fluctuations in HST WFPC-2 images, we determine that M87, NGC 4486B, and NGC 4478 are all at a distance of ~16 Mpc, while NGC 4476 lies in the backgrou…
Intrinsic charm of light mesons and CP violation in heavy quark decay
Alexey A. Petrov
We investigate the impact of the intrinsic heavy quark states on the predicted values of CP asymmetries in the decays of heavy mesons. It is shown that the intrinsic charm contribu…
Far-UV Observations of NGC 4151 during the ORFEUS-SPAS II Mission
B. R. Espey, G. A. Kriss, J. H. Krolik +3
We observed the Seyfert 1 galaxy NGC 4151 on eleven occasions at 1-2 day intervals using the Berkeley spectrometer during the ORFEUS-SPAS II mission in 1996 November. The mean spec…
Observation of Hadronic W Decays in t-tbar Events with the Collider Detector at Fermilab
F. Abe
We observe hadronic W decays in t-tbar -> W (-> l nu) + >= 4 jet events using a 109 pb-1 data sample of p-pbar collisions at sqrt{s} = 1.8 TeV collected with the Collider Detector…
Heavy Quark Effective Theory and Inclusive B Decays
Adam F. Falk
I review the use of the Heavy Quark Effective Theory in the computation of total rates and differential kinematic distributions in inclusive semileptonic and radiative B decays. Pa…
Continuum Spectra of Quasar Accretion Disk Models
Eric Agol, Ivan Hubeny, Omer Blaes
We have calculated the spectrum and polarization of a standard thin accretion disk with parameters appropriate for a bright quasar. This model improves upon previous work by includ…
Dipenguin-like contributions to D0 - anti-D0 mixing
Alexey A. Petrov
We show that because of the milder GIM suppression, the four-quark dipenguin operator contributes to the short distance piece of the D^0-\bar D^0 mixing amplitude at the same order…
Final State Interactions and New Physics in B -> pi K Decays
Adam F. Falk, Alexander L. Kagan, Yosef Nir +1
Within the Standard Model, and if one assumes that soft rescattering effects are negligible, the CP asymmetry A^dir_CP (B^\pm -> π^\pm K) is predicted to be very small and the rati…
Measurement of the B0 B0-bar oscillation frequency using pi-B meson charge-flavor correlations in p p-bar collisions at sqrt{s} = 1.8 TeV
CDF Collaboration, F. Abe et. al
We present a measurement of the B0 B0-bar oscillation frequency using a flavor tagging method based on correlations of B meson flavor with the charge of other particles produced in…
Halpha Velocity Mapping of Ultraluminous Infrared Galaxies
Chris Mihos, Greg Bothun
We use imaging Fabry-Perot observations to explore the dynamical conditions in four southern ultraluminous (L_IR > 10^12 L_sun) infrared galaxies. These galaxies all show morpholog…
The HST Key Project on the Extragalactic Distance Scale XIII. The Metallicity Dependence of the Cepheid Distance Scale
R. Kennicutt, P. Stetson, A. Saha +22
Uncertainty in the metal abundance dependence of the Cepheid variable period- luminosity (PL) relation remains one of the outstanding sources of systematic error in the extragalact…
Detecting Compton Reflection and a Broad Iron Line in MCG-5-23-16 with the Rossi X-ray Timing Explorer
K. A. Weaver, J. H. Krolik, E. A. Pier
We report the detection with the Rossi X-ray Timing Explorer of a Compton reflection signature in the Seyfert galaxy MCG-5-23-16. RXTE also resolves the Fe K-alpha fluorescence lin…
Coulomb interactions at quantum Hall critical points of systems in a periodic potential
Jinwu Ye, Subir Sachdev
We study the consequences of long-range Coulomb interactions at the critical points between integer/fractional quantum Hall states and an insulator. We use low energy theories for…
Redshift Space Distortions of the Correlation Function in Wide Angle Galaxy Surveys
Alexander S. Szalay, Takahiko Matsubara, Stephen D. Landy
Using a novel two-dimensional coordinate system, we have derived a particularly simple way to express the redshift distortions in galaxy redshift surveys with arbitrary geometry in…
Gravitational effects on the neutrino oscillation in vacuum
N. Fornengo, C. Giunti, C. W. Kim +1
The propagation of neutrinos in a gravitational field is studied by developing a method of calculating a covariant quantum-mechanical phase in a curved space-time. The result is ap…
HST Detections of Massive Black Holes in the Centers of Galaxies
H. C. Ford, Z. I. Tsvetanov, L. Ferrarese +1
After correcting spherical aberration in the Hubble Space Telescope in 1993, the central masses of galaxies can be measured with a resolution 5 to 10 times better than can be achie…
A Radio Study of the Seyfert Galaxy IC 5063: Evidence for Fast Gas Outflow
R. Morganti, T. Oosterloo, Z. Tsvetanov
New radio continuum (8 GHz and 1.4 GHz) and HI 21 cm line observations of the Seyfert 2 galaxy IC 5063 (PKS 2048-572) were obtained with the Australia Telescope Compact Array (ATCA…
Classification of Exceptional Complements: Elliptic Curve Case
Terutake Abe
We classify the log del Pezzo surface (S,B) of rank 1 with no 1-,2-,3-,4-, or 6-complements with the additional condition that B has one irreducible component C which is an ellipti…
Neutrino oscillation constraints on neutrinoless double beta decay
S. M. Bilenky, C. Giunti, C. W. Kim +1
We have studied the constraints imposed by the results of neutrino oscillation experiments on the effective Majorana mass |<m>| that characterizes the contribution of Majorana neut…
M87: A Misaligned BL LAC?
Zlatan I. Tsvetanov, George F. Hartig, Holland C. Ford +5
The nuclear region of M87 was observed with the Faint Object Spectrograph (FOS) on the Hubble Space Telescope (HST) at 6 epochs, spanning 18 months, after the HST image quality was…
The He II Opacity of the Lyman-alpha Forest and the Intergalactic Medium
Wei Zheng, Arthur F. Davidsen, Gerard A. Kriss
Based on the empirical formulas governing the distribution of Ly-a forest absorption, we use a Monte-Carlo technique to calculate the average HeII optical depth produced by these f…
Effects of Sampling on Statistics of Large Scale Structure
S. Colombi, I. Szapudi, A. S. Szalay
The effects of sampling are investigated on measurements of counts-in-cells in three-dimensional magnitude limited galaxy surveys, with emphasis on moments of the underlying smooth…
WFPC2 Observations of NGC 454: an Interacting Pair of Galaxies
M. Stiavelli, N. Panagia, C. M. Carollo +3
We present WFPC2 images in the F450W, F606W and F814W filters of the interacting pair of galaxies NGC 454. Our data indicate that the system is in the early stages of interaction.…
The Pairwise Velocity Distribution of Galaxies in the Las Campanas Redshift Survey
Stephen D. Landy, Alexander S. Szalay, Thomas J. Broadhurst
We present a novel measurement of the pairwise peculiar velocity distribution function of galaxies on scales \kmsec in the Las Campanas Redshift Survey. The distribution i…