Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- California Institute of TechnologyUS2.6k papers
- Centre National de la Recherche ScientifiqueFR2k papers
- Massachusetts Institute of TechnologyUS1.9k papers
- University of FloridaUS1.8k papers
- Carnegie Mellon UniversityUS1.7k papers
- Princeton UniversityUS1.7k papers
- University of RochesterUS1.7k papers
- Purdue University West LafayetteUS1.6k papers
- Johns Hopkins UniversityUS1.6k papers
- University of Maryland, College ParkUS1.6k papers
- The Ohio State UniversityUS1.6k papers
- University of California, Santa BarbaraUS1.6k papers
91 papers · 1 filter
Generation of Intrinsic Vibrational Gap Modes in Three-Dimensional Ionic Crystals
S. A. Kiselev, A. J. Sievers
The existence of anharmonic localization of lattice vibrations in a perfect 3-D diatomic ionic crystal is established for the rigid-ion model by molecular dynamics simulations. For…
Gas-Rich Dwarf Galaxies from the PSS-II --- II. Optical Properties
R. A. Pildis, J. M. Schombert, J. Eder
We describe the optical properties of a sample of 101 gas-rich field dwarf galaxies found on PSS-II (Second Palomar Sky Survey) plates, most newly discovered as part of a survey to…
Small Volumes in Compactified String Theory
Brian R. Greene, Yakov Kanter
We discuss some of the classical and quantum geometry associated to the degeneration of cycles within a Calabi-Yau compactification. In particular, we focus on the definition and p…
Onset of Superfluidity in 4He Films Adsorbed on Disordered Substrates
P. A. Crowell, F. W. Van Keuls, J. D. Reppy
We have studied 4He films adsorbed in two porous glasses, aerogel and Vycor, using high precision torsional oscillator and DC calorimetry techniques. Our investigation focused on t…
Gas Rich Dwarfs from the PSS-II I. Catalog and Characteristics
James Schombert, Rachel Pildis, Jo Ann Eder
This project is a visual search for field dwarf galaxies using Second Palomar Sky Survey photographic plates. A morphologically selected sample of 310 objects yielded 145 detection…
The Tully-Fisher Relation and H_not
R. Giovanelli, M. Haynes, L. da Costa +3
The use of the Tully-Fisher (TF) relation for the determination of the Hubble Constant relies on the availability of an adequate template TF relation and of reliable primary distan…
Exact expectation values of local fields in quantum sine-Gordon model
S. Lukyanov, A. Zamolodchikov
We propose an explicit expression for vacuum expectation values of the exponential fields in the sine-Gordon model. Our expression agrees both with semi-classical results in the si…
Small-scale-field Dynamo
A. Gruzinov, S. Cowley, R. Sudan
Generation of magnetic field energy, without mean field generation, is studied. Isotropic mirror-symmetric turbulence of a conducting fluid amplifies the energy of small-scale magn…
Chaos, interactions, and nonequilibrium effects in the tunneling resonance spectra of small metallic particles
Oded Agam, Ned S. Wingreen, Boris L. Altshuler +2
We explain the observation of clusters in the tunneling resonance spectra of small metallic particles of few nanometer size. Each cluster of resonances is identified with one excit…
On the Complexity of Smooth Projective Toric Varieties
Serkan Hosten
In this paper we answer a question posed by V.V. Batyrev. The question asked if there exists a complete regular fan with more than quadratically many primitive collections. We cons…
NGC 4138 - A Case Study in Counterrotating Disk Formation
Aniruddha R. Thakar, Barbara S. Ryden, Katherine P. Jore +1
The Sa(r) galaxy NGC 4138 has been recently found to contain an extensive counterrotating disk which appears to be still forming. Up to a third of the stars in the disk system may…
Improving Lattice Quark Actions
M. Alford, T. R. Klassen, G. P. Lepage
We explore the first stage of the Symanzik improvement program for lattice Dirac fermions, namely the construction of doubler-free, highly improved classical actions on isotropic a…
Zero-temperature Hysteresis in Random-field Ising Model on a Bethe Lattice
Deepak Dhar, Prabodh Shukla, James P. Sethna
We consider the single-spin-flip dynamics of the random-field Ising model on a Bethe lattice at zero temperature in the presence of a uniform external field. We determine the avera…
Phase Coexistence Properties of Polarizable Stockmayer Fluids
Kenji Kiyohara, Keith E. Gubbins, Athanassios Z. Panagiotopoulos
We report the phase coexistence properties of polarizable Stockmayer fluids of reduced permanent dipoles equal to 1.0 and 2.0 and reduced polarizabilities equal to 0.00, 0.03, and…
The Mid-Infrared Color of NGC 6946
G. Helou, S. Malhotra, C. A. Beichman +10
We analyze the new mid-infrared maps of NGC 6946 for variations in the color ratio of the 7-to-15 micron emission. Our preliminary findings are that this mid-infrared color is rema…
ISOCAM Observations of NGC 6946: Mid-IR Structure
S. Malhotra, G. Helou, D. van Buren +12
The nearby spiral galaxy NGC 6946 was observed with ISO-CAM in the mid-infrared, achieving 7 arcsec resolution and sub-MJy/steradian sensitivity. Images taken with CAM filters LW2…
A Test of the Lauer--Postman Bulk Flow
Riccardo Giovanelli, Martha P. Haynes, Gary Wegner +3
We use Tully--Fisher distances for a sample of field late spiral galaxies to test the Lauer and Postman (1994; hereinafter LP) result suggestive of a bulk flow with respect to the…
Deviations from Hubble Flow in the Local Universe
Riccardo Giovanelli
Reviews observational situation in the measurement of peculiar velocities in the local universe. Emphasis is placed on such topics as: Do spirals and ellipticals yield the same pec…
The I-Band Tully-Fisher Relation for Cluster Galaxies: a Template Relation, its Scatter and Bias Corrections
R. Giovanelli, M. Haynes, T. Herter +5
Infrared I band photometry and velocity widths for galaxies in 24 clusters, with radial velocities between 1,000 and 10,000 \kms, are used to construct a template Tully--Fisher (TF…
The I-Band Tully-Fisher Relation for Cluster Galaxies: Data Presentation
R. Giovanelli, M. Haynes, T. Herter +5
Observational parameters which can be used for redshift-independent distance determination using the Tully-Fisher (TF) technique are given for 782 spiral galaxies in the fields of…
The I-Band Tully-Fisher Relation and the Hubble Constant
Riccardo Giovanelli
The application of the I band Tully--Fisher relation towards determining the Hubble constant is reviewed, with particular attention to the impact of scatter and bias corrections in…
The Relative Distance between the Clusters of Galaxies A2634 and Coma
Marco Scodeggio, Riccardo Giovanelli, Martha P. Haynes
The Tully-Fisher and Fundamental Plane relations are used to obtain two independent estimates of the relative distance between the clusters A2634 and Coma. Previously published stu…
Improved Magnetic Information Storage using Return-Point Memory
Olga Perkovic, James P. Sethna
The traditional magnetic storage mechanisms (both analog and digital) apply an external field signal H(t) to a hysteretic magnetic material, and read the remanent magnetization M(t…
A Classification of 3-Family Grand Unification in String Theory I. The SO(10) and E_6 Models
Zurab Kakushadze, S. -H. Henry Tye
We give a classification of 3-family SO(10) and E_6 grand unification in string theory within the framework of conformal field theory and asymmetric orbifolds. We argue that the co…