22k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Massachusetts Institute of TechnologyUS255 papers
- California Institute of TechnologyUS233 papers
- Triangle Universities Nuclear LaboratoryUS232 papers
- Center for Astrophysics Harvard & SmithsonianUS218 papers
- Duke UniversityUS195 papers
- University of California, BerkeleyUS186 papers
- Lawrence Berkeley National LaboratoryUS185 papers
- Centre National de la Recherche ScientifiqueFR182 papers
- University of WashingtonUS182 papers
- Princeton UniversityUS178 papers
- The University of Texas at AustinUS168 papers
- Vanderbilt UniversityUS159 papers
174 papers · 1 filter
The CHilean Automatic Supernova sEarch (CHASE)
G. Pignata, J. Maza, M. Hamuy +16
The CHASE project started in 2007 with the aim of providing young southern supernovae (SNe) to the Carnegie Supernova Project (CSP) and Millennium Center for Supernova Studies (MCS…
Gravity Waves from Tachyonic Preheating after Hybrid Inflation
Jean Francois Dufaux, Gary N. Felder, Lev Kofman +1
We study the stochastic background of gravitational waves produced from preheating in hybrid inflation models. We investigate different dynamical regimes of preheating in these mod…
The Effects of the pep Nuclear Reaction and Other Improvements in the Nuclear Reaction Rate Library on Simulations of the Classical Nova Outburst
S. Starrfield, C. Iliadis, W. R. Hix +2
We have continued our studies of the Classical Nova outburst by evolving TNRs on 1.25Msun and 1.35Msun WDs (ONeMg composition) under conditions which produce mass ejection and a ra…
The Impact of Uncertainties in Reaction Q-values on Nucleosynthesis in Type I X-Ray Bursts
A. Parikh, J. Jose, C. Iliadis +2
Nucleosynthesis in Type I X-ray bursts may involve up to several thousand nuclear processes. The majority of these processes have only been determined theoretically due to the lack…
Two New Variable Hot DQ Stars
B. N. Barlow, B. H. Dunlap, R. Rosen +1
We have discovered periodic variations in the light curves of two hot DQ stars from the Sloan Digital Sky Survey, SDSS J220029.08-074121.5 and SDSS J234843.30-094245.3. These are t…
Star Clusters in M31: I. A Catalog and a Study of the Young Clusters
Nelson Caldwell, Paul Harding, Heather Morrison +3
We present an updated catalog of 1300 objects in the field of M31, including 670 likely star clusters of various types. Archival images were inspected to confirm cluster classifica…
The Gaia satellite: a tool for Emission Line Stars and Hot Stars
Christophe Martayan, Yves Fremat, Ronny Blomme +19
The Gaia satellite will be launched at the end of 2011. It will observe at least 1 billion stars, and among them several million emission line stars and hot stars. Gaia will provid…
Deciphering the Pulsations of G 29-38 with Optical Time Series Spectroscopy
Susan E. Thompson, M. H. van Kerkwijk, J. C. Clemens
We present optical time series spectroscopy of the pulsating white dwarf star G29-38 taken at the Very Large Telescope (VLT). By measuring the variations in brightness, Doppler shi…
The Sensitivity of Nucleosynthesis in Type I X-ray Bursts to Thermonuclear Reaction-Rate Variations
Anuj Parikh, Jordi Jose, Fermin Moreno +1
We examine the sensitivity of nucleosynthesis in Type I X-ray bursts to variations in nuclear rates. As a large number of nuclear processes are involved in these phenomena -with th…
Hypersonic Buckshot: Astrophysical Jets as Heterogeneous Collimated Plasmoids
Kristopher Yirak, Adam Frank, Andrew J. Cunningham +1
Herbig-Haro (HH) jets are commonly thought of as homogeneous beams of plasma traveling at hypersonic velocities. Structure within jet beams is often attributed to periodic or ``pul…
The Rapidly Flaring Afterglow of the Very Bright and Energetic GRB 070125
Adria C. Updike, Joshua B. Haislip, Melissa C. Nysewander +52
We report on multi-wavelength observations, ranging from the X-ray to radio wave bands, of the IPN-localized gamma-ray burst GRB 070125. Spectroscopic observations reveal the prese…
The environmental dependence of neutral hydrogen content in spiral galaxies
Jesse Miner, Jim Rose, Sheila Kannappan
We present a study of the relationship between the deficiency of neutral hydrogen and the local three-dimensional number density of spiral galaxies in the Arecibo catalog of global…
New reaction rate for 16O(p,gamma)17F and its influence on the oxygen isotopic ratios in massive AGB stars
C. Iliadis, C. Angulo, P. Descouvemont +2
The 16O(p,gamma)17F reaction rate is revisited with special emphasis on the stellar temperature range of T=60-100 MK important for hot bottom burning in asymptotic giant branch (AG…
The Effects of Variations in Nuclear Processes on Type I X-Ray Burst Nucleosynthesis
Anuj Parikh, Jordi Jose, Fermin Moreno +1
Type I X-ray bursts are violent stellar events that take place on the H/He-rich envelopes of accreting neutron stars. We have investigated the role played by uncertainties in nucle…
A Pulsational Model for the Orthogonal Polarization Modes in Radio Pulsars
J. Christopher Clemens, R. Rosen
In an earlier paper, we introduced a model for pulsars in which non-radial oscillations of high spherical degree (\el) aligned to the magnetic axis of a spinning neutron star were…
A Quantitative Non-radial Oscillation Model for the Subpulses in PSR B0943+10
R. Rosen, J. Christopher Clemens
In this paper, we analyze time series measurements of PSR B0943+10 and fit them with a non-radial oscillation model. The model we apply was first developed for total intensity meas…
Reaction rate uncertainties and 26Al in AGB silicon carbide stardust
M. A. van Raai, M. Lugaro, A. I. Karakas +1
Stardust is a class of presolar grains each of which presents an ideally uncontaminated stellar sample. Mainstream silicon carbide (SiC) stardust formed in the extended envelopes o…
The pulsation modes of the pre-white dwarf PG 1159-035
J. E. S. Costa, S. O. Kepler, D. E. Winget +74
PG 1159-035, a pre-white dwarf with T_eff=140,000 K, is the prototype of both two classes: the PG1159 spectroscopic class and the DOV pulsating class. Previous studies of PG 1159-0…
Rotation and Macroturbulence in Metal-poor Field Red Giant and Red Horizontal Branch Stars
Bruce W. Carney, David F. Gray, David Yong +4
We report the results for rotational velocities, Vrot sin i, and macroturbulence dispersion, zeta(RT), for 12 metal-poor field red giant branch stars and 7 metal-poor field red hor…
Observational Tests of Planet Formation Models
A. Sozzetti, G. Torres, D. W. Latham +8
We summarize the results of two experiments to address important issues related to the correlation between planet frequencies and properties and the metallicity of the hosts. Our r…
Rubidium and lead abundances in giant stars of the globular clusters M4 and M5
David Yong, David L. Lambert, Diane B. Paulson +1
We present measurements of the neutron-capture elements Rb and Pb for bright giants in the globular clusters M4 and M5. The clusters are of similar metallicity ([Fe/H] = -1.2) but…
Simulating Magnetohydrodynamical Flow with Constrained Transport and Adaptive Mesh Refinement; Algorithms & Tests of the AstroBEAR Code
Andrew J. Cunningham, Adam Frank, Peggy Varniere +2
A description is given of the algorithms implemented in the AstroBEAR adaptive mesh refinement code for ideal magnetohydrodynamics. The code provides several high resolution, shock…
Line Broadening in Field Metal-poor Red Giant and Red Horizontal Branch Stars
Bruce W. Carney, David W. Latham, R. P. Stefanik +1
We report 349 radial velocities for 45 metal-poor field red giant and red horizontal branch stars. We have have identified one new spectroscopic binary, HD 4306, and one possible s…
Young star clusters in M31
Heather Morrison, Nelson Caldwell, Paul Harding +3
In our study of M31's globular cluster system with MMT/Hectospec, we have obtained high-quality spectra of 85 clusters with ages less than 1 Gyr. With the exception of Hubble V, th…