2.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- A. Alikhanyan National LaboratoryAM948 papers
- Carnegie Mellon UniversityUS938 papers
- University of VirginiaUS932 papers
- Florida State UniversityUS924 papers
- Centre National de la Recherche ScientifiqueFR914 papers
- Kyungpook National UniversityKR913 papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT911 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di GenovaIT906 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR887 papers
- Massachusetts Institute of TechnologyUS863 papers
- University of Maryland, College ParkUS859 papers
- Johns Hopkins UniversityUS836 papers
28 papers · 1 filter
Shape Selection in Chiral Self-Assembly
Robin L. B. Selinger, Jonathan V. Selinger, Anthony P. Malanoski +1
Many biological and synthetic materials self-assemble into helical or twisted aggregates. The shape is determined by a complex interplay between elastic forces and the orientation…
The Effects of Low-Temperature Dielectronic Recombination on the Relative Populations of the Fe M-Shell States
S. B. Kraemer, G. J. Ferland, J. R. Gabel
We examine the effects of low-temperature, or , dielectronic recombination (DR) on the ionization balance of the Fe M-Shell (Fe IX through Fe XVI). Since rates…
The Spectral Energy Distribution and Emission-Line properties of the NLS1 Galaxy Arakelian 564
P. Romano, S. Mathur, T. J. Turner +11
We present the intrinsic spectral energy distribution (SED) of the NLS1 Arakelian 564, constructed with contemporaneous data obtained during a multi-wavelength, multi-satellite obs…
Tensor Polarization of the phi meson Photoproduced at High t
K. McCormick, the CLAS collaboration
As part of a measurement of the cross section of meson photoproduction to high momentum transfer, we measured the polar angular decay distribution of the outgoing in the…
Observation of an Exotic Baryon with S=+1 in Photoproduction from the Proton
V. Kubarovsky
The reaction was studied at Jefferson Lab using a tagged photon beam with an energy range of 3-5.47 GeV. A narrow baryon state with strangeness S=+1 and mass $M…
High Resolution Chandra Spectroscopy of Gamma Cassiopeia (B0.5IVe)
M. A. Smith, D. H. Cohen, M. F. Gu +3
gamma Cas has long been famous for its unique hard X-ray characteristics. We report herein on a 53 ks Chandra HETGS observation of this target. An inspection of our spectrum shows…
The Ionized Gas and Nuclear Environment in NGC 3783. IV. Variability and Modeling of the 900 ks CHANDRA Spectrum
H. Netzer, S. Kaspi, E. Behar +12
We present a detailed spectral analysis of the data obtained from NGC 3783 during the period 2000-2001 using Chandra. This analysis leads us to the following results. 1) NGC 3783 f…
The Nature of Near-UV Selected Objects in the Chandra Deep Field South
Duilia. F. de Mello, Jonathan. P. Gardner, T. Dahlen +3
We present the first results of the pure parallel near-UV observations with WFPC2 in the Chandra Deep Field South. The main goal is to search for the population of objects that con…
Two-Nucleon Momentum Distributions Measured in 3He(e,e'pp)n
CLAS Collaboration, R. A. Niyazov, L. B. Weinstein
We have measured the 3He(e,e'pp)n reaction at 2.2 GeV over a wide kinematic range. The kinetic energy distribution for `fast' nucleons (p > 250 MeV/c) peaks where two nucleons each…
XMM-Newton Observation of Fe Kalpha emission from a BAL QSO: Mrk 231
T. J. Turner, S. B. Kraemer
We present results from a 20 ksec XMM observation of Mrk 231. EPIC data reveal strong line emission due to Fe Ka, which has rarely been detected in this class. The line energy is c…
Study of polarized-e polarized-p --> e-prime p pi0 in the Delta(1232) mass region using polarization asymmetries
A. Biselli
Measurements of the angular distributions of target and double spin asymmetries for the Delta(1232) in the exclusive channel (polarized-p polarized-e,e-prime p)pi0 obtained at Jeff…
Observation of an Exotic Baryon in Exclusive Photoproduction from the Deuteron
S. Stepanyan, The CLAS collaboration
In an exclusive measurement of the reaction , a narrow peak that can be attributed to an exotic baryon with strangeness is seen in the invariant m…
Revisited abundance diagnostics in quasars: Fe II/Mg II ratios
E. Verner, F. Bruhweiler, D. Verner +2
Both the Fe II UV emission in the 2000- 3000 A region [Fe II (UV)] and resonance emission line complex of Mg II at 2800 A are prominent features in quasar spectra. The observed Fe…
The Host Galaxies of Narrow-Line Seyfert 1s: Evidence for Bar-Driven Fueling
D. M. Crenshaw, S. B. Kraemer, J. R. Gabel
We present a study of the host-galaxy morphologies of narrow- and broad-line Seyfert 1 galaxies (NLS1s and BLS1s) based on broad-band optical images from the Hubble Space Telescope…
Measurement of the Proton Spin Structure Function for from 0.15 to 1.6 GeV with CLAS
R. Fatemi, A. V. Skabelin, V. D. Burkert +5
Double-polarization asymmetries for inclusive scattering were measured at Jefferson Lab using 2.6 and 4.3 GeV longitudinally polarized electrons incident on a longitudinally p…
The Ionized Gas and Nuclear Environment in NGC 3783 III. Detection of a Decreasing Radial Velocity in an Intrinsic UV Absorber
J. R. Gabel, D. M. Crenshaw, S. B. Kraemer +14
We report an intrinsic absorber with decreasing outflow velocity in the Seyfert 1 galaxy NGC 3783. This is the first detection of a change in radial velocity in an outflow associat…
Hyperon Photoproduction in the Nucleon Resonance Region
J. W. C. McNabb, R. A. Schumacher, L. Todor
Cross-sections and recoil polarizations for the reactions gamma + p --> K^+ + Lambda and gamma + p --> K^+ + Sigma^0 have been measured with high statistics and with good angular c…
Elemental Abundances in NGC 3516
T. J. Turner, S. B. Kraemer, R. F. Mushotzky +2
We present RGS data from an XMM-Newton observation of the Seyfert 1 galaxy NGC 3516, taken while the continuum source was in an extreme low state. The spectrum shows numerous emiss…
Simultaneous UV and X-ray Spectroscopy of the Seyfert 1 Galaxy NGC 5548. I. Physical Conditions in the UV Absorbers
D. M. Crenshaw, S. B. Kraemer, J. R. Gabel +9
We present new UV spectra of the nucleus of the Seyfert 1 galaxy NGC 5548, which we obtained with the Space Telescope Imaging Spectrograph at high spectral resolution, in conjuncti…
Probing the Complex and Variable X-ray Absorption of Markarian 6 with XMM-Newton
S. Immler, W. N. Brandt, C. Vignali +4
We report on an X-ray observation of the Seyfert 1.5 galaxy Mrk 6 obtained with the EPIC instruments onboard XMM-Newton. Archival BeppoSAX PDS data from 18-120 keV were also used t…
STIS Spectral Imagery of the OB Stars in NGC 604: The Most Luminous Stars
Fred C. Bruhweiler, Cherie L. Miskey, Margaret Smith Neubig
We present results using 2-D spectral imagery and photometry obtained with the Hubble Space Telescope (HST) for the starburst H II region, NGC 604, in nearby galaxy M33. The spectr…
STIS Spectral Imagery of the OB Stars in NGC 604: Describing the Extraction Technique for a Crowded Stellar Field
Cherie L. Miskey, Fred C. Bruhweiler
We have developed a data reduction procedure to extract multiple spectra from a single two-dimensional Space Telescope Imaging Spectrograph (STIS) image of a crowded stellar field.…
Heavy element abundance patterns in hot DA white dwarfs
M. A. Barstow, S. A. good, J. B. Holberg +5
We present a series of systematic abundance measurements for 25 hot DA white dwarfs in the temperature range ~20000-110000K, based on far-UV spectroscopy with STIS/GHRS on HST, IUE…
Observation of Nuclear Scaling in the Reaction at 1
K. Sh Egiyan
The ratios of inclusive electron scattering cross sections of He, C, and Fe to He have been measured for the first time. It is shown that these ratios are ind…