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
54 papers · 2 filters
Radio-selected Galaxies in Very Rich Clusters at z < 0.25: I. Multi-wavelength Observations and Data Reduction Techniques
G. E. Morrison, F. N. Owen, M. J. Ledlow +4
Radio observations were used to detect the `active' galaxy population within rich clusters of galaxies in a non-biased manner that is not plagued by dust extinction or the K-correc…
The Evolution Of LMC X-4 Flares: Evidence For Super-Eddington Radiation Oozing Through Inhomogeneous Polar Cap Accretion Flows ?
Dae-Sik Moon, Stephen S. Eikenberry, Ira M. Wasserman
We present the results of two extensive Rossi X-ray Timing Explorer observations of large X-ray flaring episodes from the high-mass X-ray binary pulsar LMC X-4. Light curves during…
Core-Collapse Supernovae and Neutron Star Kicks
Dong Lai
Recent observations have revealed many new puzzles related to core-collapse supernovae, including the formation of magnetars and black holes and their possible GRB connections. We…
ISOCAM view of the starburst galaxies M82, NGC253, and NGC1808
N. M. Foerster Schreiber, M. Sauvage, V. Charmandaris +4
We present results of mid-infrared 5.0-16.5 micron spectrophotometric imaging of the starburst galaxies M82, NGC253, and NGC1808 from the ISOCAM instrument on board the Infrared Sp…
Atmospheres of Magnetized Neutron Stars: Vacuum Polarization and Partially Ionized Models
Wynn C. G. Ho, Dong Lai, Alexander Y. Potekhin +1
We construct hydrogen atmosphere models for magnetized neutron stars in radiative equilibrium with surface fields B=10^12-5x10^14 G and effective temperatures T_eff a few x 10^5-10…
Azimuthal and Kinematic Segregation of Neutral and Molecular Gas in Arp 118: The Yin-Yang Galaxy NGC 1144
P. N. Appleton, V. Charmandaris, Yu Gao +2
We present new high-resolution HI observations of the disk of the collisional infrared luminous (L L$_{\sun}$) galaxy NGC 1144, which reveal an apparent…
Magnetically Driven Warping and Precession of Accretion Disks: Implications for "Exotic" Stellar Variabilities
Dong Lai
The inner region of the accretion disk around a magnetized star is subjected to magnetic torques that induce warping and precession of the disk. These torques arise from interactio…
Andreev-Bashkin effect and knot solitons in interacting mixture of a charged and a neutral superfuids with possible releveance for neutron stars
Egor Babaev
We discuss a mixture of interacting a neutral and a charged Bose condensates, which is supposed being realized in interior of neutron stars in form of coexistent neutron superfluid…
Transfer of Polarized Radiation in Strongly Magnetized Plasmas and Thermal Emission from Magnetars: Effect of Vacuum Polarization
Dong Lai, W. C. G. Ho
We present a theoretical study of radiative transfer in strongly magnetized electron-ion plasmas, focusing on the effect of vacuum polarization due to quantum electrodynamics. This…
Infrared Observations During the Secondary Eclipse of HD 209458b: I. 3.6-Micron Occultation Spectroscopy Using the VLT
L. Jeremy Richardson, Drake Deming, Guenter Wiedemann +4
We search for an infrared signature of the transiting extrasolar planet HD 209458b during secondary eclipse. Our method, which we call `occultation spectroscopy,' searches for the…
Poynting Jets from Accretion Disks
R. V. E. Lovelace, H. Li, A. V. Koldoba +2
We give further considerations on the problem of the evolution of a coronal, force-free magnetic field which threads a differentially rotating, conducting Keplerian disk, extending…
The Infrared Counterpart of the Microquasar GRS 1758-258
D. M. Rothstein, S. S. Eikenberry, S. Chatterjee +3
We present revised infrared (2.2 micron) astrometry of the field containing the Galactic microquasar GRS 1758-258, using observations at the Keck I 10-m telescope. We find three ca…
COLA II - Radio and Spectroscopic Diagnostics of Nuclear Activity in Galaxies
E. A. Corbett, L. J. Kewley, P. N. Appleton +6
We present optical spectroscopic observations of 93 galaxies taken from the infra-red selected COLA (Compact Objects in Low Power AGN) sample. The sample spans the range of far-IR…
Lepton Acceleration by Relativistic Collisionless Magnetic Reconnection
D. A. Larrabee, R. V. E. Lovelace, M. M. Romanova
We have calculated self-consistent equilibria of a collisionless relativistic electron-positron gas in the vicinity of a magnetic point. For the considered conditions, pertinen…
Molecular gas in the intergalactic medium of Stephan's Quintet
Ute Lisenfeld, Stephane Leon, Jonathan Braine +3
Stephan's Quintet (SQ) is a Hickson Compact Group well known for its complex dynamical and star formation history and its rich intergalactic medium (IGM). In order to study the ext…
A New Search Technique for Short Orbital Period Binary Pulsars
Scott M. Ransom, James M. Cordes, Stephen S. Eikenberry
We describe a new and efficient technique which we call sideband or phase-modulation searching that allows one to detect short period binary pulsars in observations longer than the…
Three Dimensional MHD Simulations of Accretion to an Inclined Rotator: The "Cubed Sphere" Method
A. V. Koldoba, M. M. Romanova, G. V. Ustyugova +1
We describe a three-dimensional, Godunov-type numerical magnetohydrodynamics (MHD) method designed for studying disk accretion to a rotating magnetized star in the general case whe…
MHD Simulations of Bondi Accretion to a Star in the "Propeller" Regime
M. M. Romanova, O. D. Toropina, Yu. M. Toropin +1
This work investigates Bondi accretion to a rotating magnetized star in the "propeller" regime using axisymmetric resistive, magnetohydrodynamic simulations. In this regime accreti…
MHD Simulations of Disk-Magnetized Star Interactions in Quiescent Regime: Funnel Flows and Angular Momentum Transport
M. M. Romanova, G. V. Ustyugova, A. V. Koldoba +1
Magnetohydrodynamic (MHD) simulations have been used to study disk accretion to a rotating magnetized star with an aligned dipole moment. Quiescent initial conditions were develope…
SMC X-1 As An Intermediate-Stage Flaring X-ray Pulsar
Dae-Sik Moon, Stephen S. Eikenberry, Ira M. Wasserman
We present Rossi X-ray Timing Explorer observations of the X-ray pulsar SMC X-1. The source is highly variable on short time scales (< 1 h), exhibiting apparent X-ray flares occupy…
STACEE Observations of Markarian 421 During an Extended Gamma-Ray Outburst
STACEE Collaboration, L. M. Boone, J. A. Hinton +14
The active galaxy Markarian 421 underwent a substantial outburst in early 2001. Between January and May of that year, the STACEE detector was used to observe the source in gamma-ra…
Abundant molecular gas in the intergalactic medium of Stephan's Quintet
Ute Lisenfeld, Jonathan Braine, Pierre-Alain Duc +3
Stephan's Quintet (SQ) is a system consisting of at least four interacting galaxies which is well known for its complex dynamical and star formation history. It possesses a rich in…
HI Properties of Low Luminosity Star-Forming Galaxies in the KPNO International Spectroscopic Survey
Janice C. Lee, John J. Salzer, Christopher D. Impey +2
New HI observations are presented for a complete sample of 109 low luminosity star-forming galaxies taken from the KPNO International Spectroscopic Survey (KISS), the first CCD-bas…
Precession of Isolated Neutron Stars II: Magnetic Fields and Type II Superconductivity
Ira Wasserman
We consider the physics of free precession of a rotating neutron star with an oblique magnetic field. We show that if the magnetic stresses are large enough, then there is no possi…