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
11 papers · 2 filters
Mode identification from time-resolved spectroscopy of the pulsating white dwarf G 29-38
J. C. Clemens, M. H. van Kerkwijk, Y. Wu
We have used time-resolved spectroscopy to measure the colour dependence of pulsation amplitudes in the DAV white dwarf G 29-38. Model atmospheres predict that mode amplitudes shou…
Surface motion in the pulsating DA white dwarf G 29-38
M. H. van Kerkwijk, J. C. Clemens, Y. Wu
We present time-resolved spectrophotometry of the pulsating DA white dwarf G 29-38. As in previous broad-band photometry, the light curve shows the presence of a large number of pe…
Statistical properties of SGR 1900+14 bursts
Ersin Gogus, Peter M. Woods, Chryssa Kouveliotou +4
We study the statistics of soft gamma repeater (SGR) bursts, using a data base of 187 events detected with BATSE and 837 events detected with RXTE PCA, all from SGR 1900+14 during…
Hard Burst Emission from the Soft Gamma Repeater SGR 1900+14
Peter M. Woods, Chryssa Kouveliotou, Jan van Paradijs +7
We present evidence for burst emission from SGR 1900+14 with a power-law high energy spectrum extending beyond 500 keV. Unlike previous detections of high energy photons during bur…
A Search for Chemical Signatures of Galactic Mergers
Inese I. Ivans, Bruce Carney, Luisa de Almeida +1
We present preliminary abundance analyses of a group of high-velocity metal-poor stars. This report describes our work in progress. We examine the derived abundances in the context…
Relativistic Winds from Compact Gamma-ray Sources: I. Radiative Acceleration in the Klein-Nishina Regime
Piero Madau, Christopher Thompson
We consider the radiative acceleration to relativistic bulk velocities of a cold, optically thin plasma which is exposed to an external source of gamma-rays. The flow is driven by…
Physical Mechanisms for the Variable Spin-down of SGR 1900+14
C. Thompson, R. C. Duncan, P. M. Woods +3
We consider the physical implications of the rapid spindown of Soft Gamma Repeater 1900+14, and of the apparent "braking glitch", ΔP/P = l x 10^-4, that was concurrent with the Aug…
Variable Spin-down in the Soft Gamma Repeater SGR 1900+14 and Correlations with Burst Activity
Peter M. Woods, Chryssa Kouveliotou, Jan van Paradijs +7
We have analyzed Rossi X-ray Timing Explorer Proportional Counter Array observations of the pulsed emission from SGR 1900+14 during September 1996, June - October 1998, and early 1…
Galactic-Scale Outflow and Supersonic Ram-Pressure Stripping in the Virgo Cluster Galaxy NGC 4388
S. Veilleux, J. Bland-Hawthorn, G. Cecil +2
The Hawaii Imaging Fabry-Perot Interferometer (HIFI) on the University of Hawaii 2.2m telescope was used to map the Halpha and [O III] 5007 A emission-line profiles across the enti…
Is the Cosmological Constant Non-Zero?
P. H. Frampton
There is a discussion of the temperature anisotropy of the cosmic background radiation and of how the first Doppler peak depends on the different contributions to the vacuum energy…
Position of First Doppler Peak
P. H. Frampton
This talk describes an analytic calculation of the position of the first accoustic peak as a function of the matter density and the cosmological constant (work with Y.J. Ng and R.…