Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR3.3k papers
- University of MichiganUS2.6k papers
- University of California, BerkeleyUS2.3k papers
- University of California, Santa CruzUS2.1k papers
- California Institute of TechnologyUS2.1k papers
- University of WashingtonUS2k papers
- University of ChicagoUS2k papers
- University of CambridgeGB1.9k papers
- The Ohio State UniversityUS1.9k papers
- Center for Astrophysics Harvard & SmithsonianUS1.9k papers
- Brookhaven National LaboratoryUS1.9k papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR1.9k papers
316 papers · 1 filter
The Reionization History in the Lognormal Model
Ji-Ren Liu, Li-Zhi Fang, Long-Long Feng +1
We study the evolution of baryonic gas before the reionization in the lognormal (LN) model of cosmic clustering. We show that the thermal history of the universe around the reioniz…
Two-dimensional, Time-dependent, Multi-group, Multi-angle Radiation Hydrodynamics Test Simulation in the Core-Collapse Supernova Context
Eli Livne, Adam Burrows, Rolf Walder +2
We have developed a time-dependent, multi-energy-group, and multi-angle (S) Boltzmann transport scheme for radiation hydrodynamics simulations, in one and two spatial dimension…
The Geometric Thickness of Low Degree Graphs
Christian A. Duncan, David Eppstein, Stephen G. Kobourov
We prove that the geometric thickness of graphs whose maximum degree is no more than four is two. All of our algorithms run in O(n) time, where n is the number of vertices in the g…
Spectroscopic follow-up of FIRBACK-South-Marano bright galaxies
J. Patris, M. Dennefeld, G. Lagache +1
We present optical spectroscopy of the brightest 170 microns sources in the FIRBACK South Marano (FSM) field. The survey is 90% complete at the 4 sigma level. The spectra are compa…
Observations and Theoretical Implications of the Large Separation Lensed Quasar SDSS J1004+4112
M. Oguri, N. Inada, C. R. Keeton +25
We study the recently discovered gravitational lens SDSS J1004+4112, the first quasar lensed by a cluster of galaxies. It consists of four images with a maximum separation of 14.62…
Analysis of a Very Massive DA White Dwarf via the Trigonometric Parallax and Spectroscopic Methods
C. C. Dahn, P. Bergeron, J. Liebert +2
By two different methods, we show that LHS 4033 is an extremely massive white dwarf near its likely upper mass limit for destruction by unstable electron captures. From the accurat…
Dynamic supercoiling bifurcations of growing elastic filaments
Charles W. Wolgemuth, Raymond E. Goldstein, Thomas R. Powers
Certain bacteria form filamentous colonies when the cells fail to separate after dividing. In Bacillus subtilis, Bacillus thermus, and cyanobacteria, the filaments can wrap into co…
Displacement of X-Ray Sources from Star Clusters in Starburst Galaxies
P. Kaaret, A. Alonso-Herrero, J. S. Gallagher +3
We examine the spatial offsets between X-ray point sources and star clusters in three starburst galaxies. We find that the X-ray sources are preferentially located near the star cl…
Klio: A 5 micron camera for the detection of giant exoplanets
Melanie Freed, Philip M. Hinz, Michael R. Meyer
We plan to take advantage of the unprecedented combination of low thermal background and high resolution provided by the 6.5m MMT's adaptive secondary mirror, to target the 3-5 mic…
Using Atomic Diffraction of Na from Material Gratings to Measure Atom-Surface Interactions
John D. Perreault, Alexander D. Cronin, T. A. Savas
In atom optics a material structure is commonly regarded as an amplitude mask for atom waves. However, atomic diffraction patterns formed using material gratings indicate that mate…
Phasor analysis of atom diffraction from a rotated material grating
Alexander D. Cronin, John D. Perreault
The strength of an atom-surface interaction is determined by studying atom diffraction from a rotated material grating. A phasor diagram is developed to interpret why diffraction o…
A Gravitationally Lensed Quasar with Quadruple Images Separated by 14.62 Arcseconds
N. Inada, M. Oguri, B. Pindor +29
Gravitational lensing is a powerful tool for the study of the distribution of dark matter in the Universe. The cold-dark-matter model of the formation of large-scale structures pre…
Adventures in Thermal Duality (II): Towards a Duality-Covariant String Thermodynamics
Keith R. Dienes, Michael Lennek
In a recent companion paper, we observed that the rules of ordinary thermodynamics generally fail to respect thermal duality, a symmetry of string theory under which the physics at…
Adventures in Thermal Duality (I): Extracting Closed-Form Solutions for Finite-Temperature Effective Potentials in String Theory
Keith R. Dienes, Michael Lennek
Thermal duality, which relates the physics of closed strings at temperature T to the physics at the inverse temperature 1/T, is one of the most intriguing features of string thermo…
WFI J2026-4536 and WFI J2033-4723: Two New Quadruple Gravitational Lenses
Nicholas D. Morgan, John A. R. Caldwell, Paul L. Schechter +3
We report the discovery of two new gravitationally lensed quasars, WFI J2026-4536 and WFI J2033-4723, at respective source redshifts of z=2.23 and z=1.66. Both systems are quadrupl…
Quantum signatures of breather-breather interactions
J. Dorignac, J. C. Eilbeck, M. Salerno +1
The spectrum of the Quantum Discrete Nonlinear Schrödinger equation on a periodic 1D lattice shows some interesting detailed band structure which may be interpreted as the quantum…
Forming Young Bulges within Existing Disks: Statistical Evidence for External Drivers
Sheila J. Kannappan, Rolf A. Jansen, Elizabeth J. Barton
Contrary to traditional models of galaxy formation, recent observations suggest that some bulges form within preexisting disk galaxies. Such late-epoch bulge formation within disks…
Effects of Helium Phase Separation on the Evolution of Giant Planets
Jonathan J. Fortney, W. B. Hubbard
We present the first models of Saturn and Jupiter to couple their evolution to both a radiative-atmosphere grid and to high-pressure phase diagrams of hydrogen with helium. The pur…
The data analysis of HD209458 Ly-alpha transit occultation
J. -M. Désert, A. Vidal-Madjar, A. Lecavelier des Étangs +4
Using STIS - HST observations, we have detected an extended upper atmosphere in the extrasolar planet HD209458b . The spectra show an absorption of (15+/-4)% of the stellar Ly-alph…
Low Mass Stars and Substellar Objects in the NGC 1333 Molecular Cloud
Bruce A. Wilking, Michael R. Meyer, Thomas P. Greene +2
We present the results of near-infrared imaging and low-resolution near- infrared spectroscopy of low mass objects in the NGC 1333 molecular cloud. A JHK survey of an 11.4' x 11.7'…
Weak lensing mass reconstruction of the interacting cluster 1E0657-558: Direct evidence for the existence of dark matter
Douglas Clowe, Anthony Gonzalez, Maxim Markevitch
We present a weak lensing mass reconstruction of the interacting cluster 1E0657-558 in which we detect both the main cluster and a sub-cluster. The sub-cluster is identified as a s…
Minor-axis velocity gradients in disk galaxies
L. Coccato, E. M. Corsini, A. Pizzella +3
We present the ionized-gas kinematics and photometry of a sample of 4 spiral galaxies which are characterized by a zero-velocity plateau along the major axis and a velocity gradien…
Neutron Star Kicks from Asymmetric Collapse
Chris L. Fryer
Many neutron stars are observed to be moving with spatial velocities, in excess of 500km/s. A number of mechanisms have been proposed to give neutron stars these high velocities. O…
SDSS J115517.35+634622.0: A Newly Discovered Gravitationally Lensed Quasar
Bart Pindor, Daniel J. Eisenstein, Naohisa Inada +12
We report the discovery of SDSSJ115517.35+634622.0, a previously unknown gravitationally lensed quasar. The lens system exhibits two images of a quasar, with an image se…