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
10 papers · 2 filters
The Fate of Dark Energy
Paul H. Frampton, Tomo Takahashi
By studying the present cosmological data, particularly on CMB, SNeIA and LSS, we find that the future fate of the universe, for simple linear models of the dark energy equation-of…
A new look at the pulsating DB white dwarf GD 358:Line-of-sight velocity measurements and constraints on model atmospheres
Rubina Kotak, Marten H. van Kerkwijk, J. C. Clemens +1
We report on our findings of the bright, pulsating, helium atmosphere white dwarf GD 358, based on time-resolved optical spectrophotometry. We identify 5 real pulsation modes and a…
How to Test Stringy Dark Energy?
P. H. Frampton
It is suggested, by using a covariant lagrangian formalism to estimate the equation of state , that stringy dark energy predicts , a negative pressure larger in ma…
Pulsating or not? A search for hidden pulsations below the red edge of the ZZ instability strip
Rubina Kotak, Marten H. van Kerkwijk, J. Christopher Clemens +1
The location of the red edge of the ZZ Ceti instability strip is defined observationally as being the lowest temperature for which a white dwarf with a H-rich atmosphere (DA) is kn…
The Effects of Thermonuclear Reaction Rate Variations on Nova Nucleosynthesis: A Sensitivity Study
Christian Iliadis, Art Champagne, Jordi Jose +2
We investigate the effects of thermonuclear reaction rate uncertainties on nova nucleosynthesis. One-zone nucleosynthesis calculations have been performed by adopting temperature-d…
Tightly Correlated X-ray/H Emitting Filaments in the Superbubble and Large-Scale Superwind of NGC 3079
G. Cecil, J. Bland-Hawthorn, S. Veilleux
Using Chandra and HST we show that X-ray and H filaments that form the 1.3-kpc diameter superbubble of NGC 3079 have strikingly similar patterns at 0."8 resolution. This tight m…
Chemical Abundances Of Three Metal-Poor Globular Clusters (NGC 6287, NGC 6293, And NGC 6541) In The Inner Halo
Jae-Woo Lee, Bruce W. Carney
We present a chemical abundance study of three inner old halo clusters NGC 6287, NGC 6293, and NGC 6541, finding [Fe/H] = -2.01 +/- 0.05, -1.99 +/- 0.02, and -1.76 +/- 0.02, respec…
Time-resolved optical spectroscopy of the pulsating DA white dwarf HS 0507+0434B: New constraints on mode identification and pulsation properties
Rubina Kotak, Marten H. van Kerkwijk, J. Christopher Clemens
We present a detailed analysis of time-resolved optical spectra of the ZZ Ceti white dwarf, HS 0507+0434B. Using the wavelength dependence of observed mode amplitudes, we deduce th…
Are the Narrow Line Regions in Active Galaxies Dusty and Radiation Pressure Dominated?
M. A. Dopita, B. A. Groves, R. S. Sutherland +2
The remarkable similarity between emission spectra of narrow line regions (NLR) in Seyfert Galaxies has long presented a mystery. In photoionization models, this similarity implies…
Infrared Photometry of the Globular Cluster Palomar 6
Jae-Woo Lee, Bruce W. Carney
We present JHK photometry of Palomar 6. Our photometric measurements range from the RGB-tip to 2 mag below the RHB and our CMDs show that Palomar~6 appears to have a well-defined R…