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
97 papers · 2 filters
The Double Helix Nebula: a magnetic torsional wave propagating out of the Galactic centre
Mark Morris, Keven Uchida, Tuan Do
Radioastronomical studies have indicated that the magnetic field in the central few hundred parsecs of our Milky Way Galaxy has a dipolar geometry and a strength substantially larg…
Discovery of a low-eccentricity, high-inclination Kuiper belt object at 58 AU
R. L. Allen, B. Gladman, J. J. Kavelaars +3
We report the discovery of the first trans-neptunian object, designated 2004 XR190, with a nearly-cirular orbit beyond the 2:1 mean-motion resonance. Fitting an orbit to 23 astrome…
Polycyclic Aromatic Hydrocarbons Orbiting HD 233517, an Evolved Oxygen-Rich Red Giant
M. Jura, J. Bohac, B. Sargent +7
We report spectra obtained with the Spitzer Space Telescope in the 5 to 35 micron range of HD 233517, an evolved K2 III giant with circumstellar dust. At wavelengths longer than 13…
IRS spectra of two ultraluminous infrared galaxies at z=1.3
V. Desai, L. Armus, B. T. Soifer +15
We present low-resolution (64 < R < 124) mid-infrared (8--38 micron) Spitzer/IRS spectra of two z~1.3 ultraluminous infrared galaxies (LFIR~10^13) discovered in a Spitzer/MIPS surv…
Nonideal strongly magnetized plasmas of neutron stars and their electromagnetic radiation
A. Y. Potekhin, G. Chabrier, D. Lai +2
We study the equation of state, polarization and radiation properties for nonideal, strongly magnetized plasmas which compose outer envelopes of magnetic neutron stars. Detailed ca…
Template Rotation Curves for Disk Galaxies
Barbara Catinella, Riccardo Giovanelli, Martha P. Haynes
A homogeneous sample of ~2200 low redshift disk galaxies with both high sensitivity long-slit optical spectroscopy and detailed I-band photometry is used to construct average, or t…
Spitzer Observations of Deeply Obscured Galactic Nuclei
H. W. W. Spoon, J. V. Keane, J. Cami +4
We report on our first results from a mid-infrared spectroscopic study of ISM features in a sample of deeply obscured ULIRG nuclei using the InfraRed Spectrograph (IRS) on the Spit…
Transient radio bursts from rotating neutron stars
M. A. McLaughlin, A. G. Lyne, D. R. Lorimer +11
The `radio sky' is relatively unexplored for transient signals, although the potential of radio-transient searches is high, as demonstrated recently by the discovery of a previousl…
Propeller-driven Outflows and Disk Oscillations
M. M. Romanova, G. V. Ustyugova, A. V. Koldoba +1
We report the discovery of propeller-driven outflows in axisymmetric magnetohydrodynamic simulations of disk accretion to rapidly rotating magnetized stars. Matter outflows in a wi…
The young, highly relativistic binary pulsar J1906+0746
D. R. Lorimer, I. H. Stairs, P. C. C. Freire +33
We report the discovery of PSR J1906+0746, a young 144-ms pulsar in a highly relativistic 3.98-hr orbit with an eccentricity of 0.085 and expected gravitational wave coalescence ti…
Impact of Systematic Errors in Sunyaev-Zel'dovich Surveys of Galaxy Clusters
Matthew R. Francis, Rachel Bean, Arthur Kosowsky
Future high-resolution microwave background measurements hold the promise of detecting galaxy clusters throughout our Hubble volume through their Sunyaev-Zel'dovich (SZ) signature,…
First Detection of PAHs and Warm Molecular Hydrogen in Tidal Dwarf Galaxies
S. J. U. Higdon, J. L. Higdon, J. Marshall
We observed two faint tidal dwarf galaxies (TDGs), NGC 5291N and NGC 5291 S with the Infrared Spectrograph on the Spitzer Space Telescope. We detect strong polycyclic aromatic hydr…
Detection of the Buried AGN in NGC 6240 with the Infrared Spectrograph on The Spitzer Space Telescope
L. Armus, J. Bernard-Salas, H. W. W. Spoon +10
We present mid-infrared spectra of the nearby, Ultraluminous Infrared Galaxy NGC 6240 taken with the IRS on Spitzer. The spectrum of NGC 6240 is dominated by strong fine-structure…
Remarkable Disk and Off-nuclear Starburst Activity in the "Tadpole Galaxy" as revealed by the Spitzer Space Telescope
T. H. Jarrett, M. Polletta, I. P. Fournon +20
We present ground-based optical and Spitzer infrared imaging observations of the interacting galaxy UGC 10214, the "Tadpole Galaxy" (z = 0.0310), focusing on the star formation act…
Rotational Broadening of Atomic Spectral Features from Neutron Stars
P. Chang, S. Morsink, L. Bildsten +1
The discovery of the first gravitationally redshifted spectral line from a neutron star (NS) by Cottam, Paerels and Mendez has triggered theoretical studies of the physics of atomi…
Mid Infrared Properties of Low Metallicity Blue Compact Dwarf Galaxies From Spitzer/IRS
Yanling Wu, V. Charmandaris, Lei Hao +4
We present a {\em Spitzer}-based mid-infrared study of a large sample of Blue Compact Dwarf galaxies (BCD) using the Infrared Spectrograph (IRS), including the first mid-IR spectru…
The CFEPS Kuiper Belt Survey: Strategy and Pre-survey Results
R. L. Allen, B. Gladman, J-M Petit +13
We present the data acquisition strategy and characterization procedures for the Canada-France Ecliptic Plane Survey (CFEPS), a sub-component of the Canada-France-Hawaii Telescope…
Locking of the Rotation of Disk-Accreting Magnetized Stars
M. Long, M. M. Romanova, R. V. E Lovelace
We investigate the rotational equilibrium state of a disk accreting magnetized stars using axisymmetric magnetohydrodynamic (MHD) simulations. In this ``locked'' state, the spin-up…
Redshifts from Spitzer Spectra for Optically Faint, Radio Selected Infrared Sources
D. W. Weedman, E. Le Floc'h, S. J. U. Higdon +2
Spectra have been obtained with the Infrared Spectrograph on the Spitzer Space Telescope for 18 optically faint sources (R > 23.9,mag) having f(nu) (24um) > 1.0,mJy and having radi…
And Don't Forget The Black Holes
H. A. Bethe, G. E. Brown, C. -H. Lee
The discovery of the highly relativistic neutron star (NS) binary (in which both NS's are pulsars) not only increases the estimated merging rate for the two NS's by a large factor,…
SWAS observations of comet 9P/Tempel 1 and Deep Impact
Frank Bensch, Gary J. Melnick, David A. Neufeld +3
On 4 July 2005 at 1:52 UT the Deep Impact mission successfully completed its goal to hit the nucleus of 9P/Tempel 1 with an impactor, forming a crater on the nucleus and ejecting m…
Multi-wavelength Study of Galaxy Rotation Curves and its Application to Cosmology
Amelie Saintonge, Christian Marinoni, Karen L. Masters +3
Rotation information for spiral galaxies can be obtained through the observation of different spectral lines. While the Halpha(6563 A) line is often used for galaxies with low to m…
Detection of Large Grains in the Coma of Comet C/2001 A2 (LINEAR) from Arecibo Radar Observations
Michael C. Nolan, John K. Harmon, Ellen S. Howell +2
Arecibo S-band (lambda=13cm) radar observations of Comet C/2001 A2 (LINEAR) on 2001 July 7-9 showed a strong echo from large coma grains. This echo was significantly depolarized. T…
Does Low Frequency X-ray QPO Behavior in GRS 1915+105 Influence Subsequent X-ray and Infrared Evolution?
V. J. Mikles, S. S. Eikenberry, D. M. Rothstein
Using observations with the Rossi X-ray Timing Explorer, we examine the behavior of 2-10 Hz quasi-periodic oscillations (QPOs) during spectrally-hard dips in the x-ray light curve…