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
46 papers · 2 filters
Neutron Star Kicks and Supernova Asymmetry
Dong Lai
Observations over the last decade have shown that neutron stars receive a large kick velocity (of order a hundred to a thousand km/s) at birth. The physical origin of the kicks and…
Radiative Transfer Modeling of Passive Circumstellar Disks: Application to HR4796A
T. Currie, D. Semenov, Th. Henning +2
We present a radiative transfer model which computes the spectral energy distribution of a passive, irradiated, circumstellar disk, assuming the grains are in radiative equilibrium…
Pulsar Parallaxes at 5 GHz with the Very Long Baseline Array
S. Chatterjee, J. M. Cordes, W. H. T. Vlemmings +3
We present the first pulsar parallaxes measured with phase-referenced pulsar VLBI observations at 5 GHz. Due to the steep spectra of pulsars, previous astrometric measurements have…
A bias in optical observations of high redshift luminous infrared galaxies
V. Charmandaris, E. Le Floc'h, I. F. Mirabel
We present evidence for the dramatically different morphology between the rest frame UV and 7micron mid-IR emission of VV114 and Arp299, two nearby (z~0) violently interacting infr…
Spectroscopy of Molecular Hydrogen Emission from KH 15D
Drake Deming, David Charbonneau, Joseph Harrington
We report infrared spectroscopy of the unusual eclipsing pre-main sequence object KH 15D, obtained using NIRSPEC on Keck II. During eclipse, observations using low spectral resolut…
NLTE Spectral Analysis of Central Stars of PNe Interacting with the ISM
T. Rauch, F. Kerber, E. Furlan +1
The analysis of Planetary Nebulae (PNe) provides a tool to investigate the properties of their exciting central stars (CSPN) at the moment of the PN ejection as well as on the prop…
Smashing the Guitar: An Evolving Neutron Star Bow Shock
S. Chatterjee, J. M. Cordes
The Guitar nebula is a spectacular example of an H-alpha bow shock nebula produced by the interaction of a neutron star with its environment. The radio pulsar B2224+65 is traveling…
A Galactic O-Star Catalog
J. Maíz-Apellániz, N. R. Walborn, H. Á. Galué +1
We have produced a catalog of 378 Galactic O stars with accurate spectral classifications which is complete for V<8 but includes many fainter stars. The catalog provides cross-iden…
Dust enshrouded star-forming activity in Arp 299
P. Gallais, V. Charmandaris, E. Le Floc'h +4
We present mid-infrared spectro-imaging (5 - 16 microns) observations of the infrared luminous interacting system Arp 299 (=Mrk171 =IC694+NGC3690) obtained with the ISOCAM instrume…
Inner Halo Shapes of Dwarf Galaxies: Resolving the Cusp/Core Problem
K. Spekkens, R. Giovanelli
We derive inner dark matter halo density profile slopes for a sample of 200 dwarf galaxies by inverting rotation curves obtained from high-quality, long-slit optical spectra. Using…
Arecibo 430 MHz Pulsar Polarimetry: Faraday Rotation Measures and Morphological Classifications
J. M. Weisberg, J. M. Cordes, B. Kuan +3
We have measured Faraday Rotation Measures (RMs) at Arecibo Observatory for 36 pulsars, 17 of them new. We combine these and earlier measurements to study the galactic magnetic fie…
New Quasars Detected via Variability in the QUEST1 Survey
A. W. Rengstorf, S. L. Mufson, C. Abad +31
By observing the high galactic latitude equatorial sky in drift scan mode with the QUEST (QUasar Equatorial Survey Team) Phase 1 camera, multi-bandpass photometry on a large strip…
Pulsar bow shocks as probes of warm neutral gas
Bryan Gaensler, Ben Stappers, Shami Chatterjee +3
Pulsars have mean space velocities >~500 km/s. The consequent ram pressure results in tight confinement of the star's energetic wind, driving a bow shock into the surrounding mediu…
Comparing Chandra and SIRTF Observations for Obscured Starbursts and AGN at High Redshift
D. Weedman, V. Charmandaris, A. Zezas
Tracking the star formation rate to high redshifts requires knowledge of the contribution from both optically visible and obscured sources. The dusty, optically-obscured galaxies c…
Astrometry of the OH masers of 4 Mira stars
Wouter Vlemmings, Huib Jan van Langevelde, Phil Diamond
The OH main line masers in circumstellar shells were observed with astrometric VLBI in order to accurately determine the position of the star, as well as its motion, including the…
Atmospheres and Spectra of Strongly Magnetized Neutron Stars -- III. Partially Ionized Hydrogen Models
Wynn C. G. Ho, Dong Lai, Alexander Y. Potekhin +1
We construct partially ionized hydrogen atmosphere models for magnetized neutron stars in radiative equilibrium with surface fields B=10^12-5 \times 10^14 G and effective temperatu…
The stellar environment of SMC N81
M. Heydari-Malayeri, F. Meynadier, V. Charmandaris +4
We present near infrared JHK imaging of the Small Magellanic Cloud compact H II region N81 using the ISAAC camera at the ESO Very Large Telescope (Antu). Our analysis of the stella…
Circular Polarization of Circumstellar Water Masers: Magnetic Fields of AGB stars
W. H. T. Vlemmings, P. J. Diamond, H. J. van Langevelde
We present circular polarization measurements of circumstellar water masers around 2 Mira variables and 4 supergaint stars. Both an LTE and non-LTE method are used to analyze the c…
Neutral Hydrogen Mapping of Virgo Cluster Blue Compact Dwarf Galaxies
G. L. Hoffman, N. Brosch, E. E. Salpeter +1
A new installment of neutral hydrogen mappings of Blue Compact Dwarf galaxies, as defined by optical morphology, in and near the Virgo cluster is presented. The primary motivation…
The Mass Function of Super Giant Molecular Complexes and Implications for Forming Young Massive Star Clusters in the Antennae (NGC 4038/39)
C. D. Wilson, N. Z. Scoville, S. C. Madden +1
We have used previously published observations of the CO emission from the Antennae (NGC 4038/39) to study the detailed properties of the super giant molecular complexes with the g…
Palatini form of 1/R gravity
Eanna E. Flanagan
It has been suggested that the recent acceleration of the expansion of the Universe is due a modified gravitational action consisting of the Einstein-Hilbert term plus a term propo…
Rotating black hole orbit functionals in the frequency domain
Steve Drasco, Scott A. Hughes
In many astrophysical problems, it is important to understand the behavior of functions that come from rotating (Kerr) black hole orbits. It can be particularly useful to work with…
PSR J0609+2130: A disrupted binary pulsar?
D. R. Lorimer, M. A. McLaughlin, Z. Arzoumanian +6
We report the discovery and initial timing observations of a 55.7-ms pulsar, J0609+2130, found during a 430-MHz drift-scan survey with the Arecibo radio telescope. With a spin-down…
Photon Orbital Angular Momentum in Astrophysics
Martin Harwit
Astronomical observations of the orbital angular momentum of photons, a property of electromagnetic radiation that has come to the fore in recent years, have apparently never been…