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
9 papers · 2 filters
Evidence for Secular Evolution in Late-Type Spirals
S. Courteau, R. S. de Jong, A. H. Broeils
We combine deep optical and IR photometry for 326 spiral galaxies from two recent galaxy samples and report that the surface brightness profiles of late-type spirals are best fit b…
The HI Content of Spirals. I. Field-Galaxy HI Mass Functions and HI Mass-Optical Size Regression
José M. Solanes, Riccardo Giovanelli, Martha P. Haynes
A standard parametric maximum-likelihood technique is used to determine both the probability distribution over total HI mass and the regression of this quantity on the…
Hydrogen Molecules In Superstrong Magnetic Field: II. Excitation Levels
Dong Lai, Edwin E. Salpeter
We study the energy levels of H molecules in a superstrong magnetic field ($B\go 10^{12}$ G), typically found on the surfaces of neutron stars. The interatomic interaction pote…
Motion and Ionization Equilibrium of Hydrogen Atoms in Superstrong Magnetic Field
Dong Lai, Edwin E. Salpeter
We study the effects of finite proton mass on the energy levels of hydrogen atoms moving transverse to a superstrong magnetic field with generalized pseudomomentum . F…
Variations in Solar Luminosity from Time Scales of Minutes to Months
Jon D. Pelletier
We present the power spectrum of solar irradiance during 1985 and 1987 obtained from the ACRIM project from time scales of minutes to months. At low frequency the spectra are Loren…
On The Jets Associated with Galactic Superluminal Sources
Amir Levinson, Roger Blandford
Recent observations of GRS 1915+105 and GRO J1655+40 reveal superluminal motions in Galactic sources. This letter examines the physical conditions within these Galactic sources, th…
What is the Small-Scale Velocity Dispersion of Galaxy Pairs?
L. Guzzo, K. B. Fisher, M. S. Strauss +2
We present some new results from an ongoing investigation of the anisotropy of the two--point correlation function for optically selected galaxies. We have estimated xi(r_p,pi) fro…
The Onset of the Cold HI Phase in Disks of Protogalaxies
Edvige Corbelli, Edwin E. Salpeter
We discuss a possible delay experienced by protogalaxies with low column density of gas in forming stars over large scales. After the hydrogen has recombined, as the external ioniz…
ON BLUE STRAGGLER FORMATION BY DIRECT COLLISIONS OF MAIN-SEQUENCE STARS
James C. Lombardi, Frederic A. Rasio, Stuart L. Shapiro
We report the results of new SPH calculations of parabolic collisions between main-sequence (MS) stars. The stars are assumed to be close to the MS turn-off point in a globular clu…