15.5k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR351 papers
- California Institute of TechnologyUS332 papers
- University of ChicagoUS289 papers
- Fermi National Accelerator LaboratoryUS253 papers
- Lawrence Berkeley National LaboratoryUS250 papers
- University of California, BerkeleyUS250 papers
- Princeton UniversityUS249 papers
- Pennsylvania State UniversityUS222 papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR212 papers
- Sorbonne UniversitéFR212 papers
- Max Planck Institute for Extraterrestrial PhysicsDE202 papers
- Imperial College LondonGB197 papers
16 papers · 2 filters
Galaxy Interactions and Starbursts at High Redshift
R. S. Somerville, G. Rosenfeld, T. S. Kolatt +3
Using high resolution N-body simulations with hydrodynamics and star formation, we investigate interactions and the resulting starbursts in galaxies with properties typical of $z\s…
Keck Spectra of Brown Dwarf Candidates and a Precise Determination of the Lithium Depletion Boundary in the Alpha Persei Open Cluster
J. R. Stauffer, D. Barrado y Navascués, J. Bouvier +8
We have identified twenty-seven candidate very low mass members of the relatively young Alpha Persei open cluster from a six square degree CCD imaging survey. Based on their I magn…
Binary events and extragalactic planets in pixel microlensing
Edward A. Baltz, Paolo Gondolo
Pixel microlensing, i.e. gravitational microlensing of unresolved stars, can be used to explore distant stellar systems, and as a bonus may be able to detect extragalactic planets.…
An Elliptical Galaxy Luminosity Function and Velocity Dispersion Sample of Relevance for Gravitational Lensing Statistics
Yu-Chung N. Cheng, Lawrence M. Krauss
We have selected 42 elliptical galaxies from the literature and estimated their velocity dispersions at the effective radius ($σ_{\re}$) and at 0.54 effective radii ($\vff$). We fi…
The Age of Globular Clusters
Lawrence M. Krauss
I review here recent developments which have affected our understanding of both the absolute age of globular clusters and the uncertainties in this age estimate, and comment on the…
The 1995-1996 Decline of R Coronae Borealis - High Resolution Optical Spectroscopy
N. Kameswara Rao, David L. Lambert, Mark T. Adams +10
A set of high-resolution optical spectra of RCrB acquired before, during, and after its 1995-1996 decline is discussed. All of the components reported from earlier declines are see…
Deep CCD Surface Photometry of the Edge-On Spiral NGC 4244
Anne M. Fry, Heather L. Morrison, Paul Harding +1
We have obtained deep surface photometry of the edge-on spiral galaxy NGC 4244. Our data reliably reach 27.5 R magnitude arcsec^{-2}, a significant improvement on our earlier deep…
The Big Occulting Steerable Satellite (BOSS)
Craig J. Copi, Glenn D. Starkman
Natural (such as lunar) occultations have long been used to study sources on small angular scales, while coronographs have been used to study high contrast sources. We propose laun…
A Re-interpretation of Historical References to the Supernova of 1054 AD
George W. Collins, II, William P. Claspy +1
In this paper we re-examine historical references to the supernova event of 1054 AD with a view to establishing a sequence astronomical events which minimizes apparent conflicts be…
Formation, Interaction and Observation of Topological Defects
Tanmay Vachaspati
In these lectures, I describe the formation of defect distributions in first-order phase transitions, then briefly discuss the relevance of defect interactions after a phase transi…
Dynamics of Mergers
Chris Mihos
I review the dynamics of galaxy mergers, paying particular attention to the triggering of gaseous inflows and onset of ultraluminous activity in galaxies.
Remarks on Inflation
Tanmay Vachaspati
It has been shown that sub-Planckian models of inflation require initial homogeneity on super-Hubble scales under certain commonly held assumptions. Here I remark on the possible i…
Cosmic microwave background anisotropy from wiggly strings
Levon Pogosian, Tanmay Vachaspati
We investigate the effect of wiggly cosmic strings on the cosmic microwave background radiation anisotropy and matter power spectrum by modifying the string network model used by A…
Constraining Dark Halo Potentials with Tidal Tails
John Dubinski, J. Christopher Mihos, Lars Hernquist
We present an extensive parameter survey to study the influence of halo mass profiles on the development of tidal tails in interacting disk galaxies. We model the galaxies using a…
Life, The Universe, and Nothing: Life and Death in an Ever-Expanding Universe
Lawrence M. Krauss, Glenn D. Starkman
Current evidence suggests that the cosmological constant is not zero, or that we live in an open universe. We examine the implications for the future under these assumptions, and f…
Observation of Cosmic Acceleration and Determining the Fate of the Universe
Glenn Starkman, Mark Trodden, Tanmay Vachaspati
Current observations of Type Ia supernovae provide evidence for cosmic acceleration out to a redshift of $z \lsim 1$, leading to the possibility that the universe is entering an in…