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269 papers · 1 filter
High Albedos of Low Inclination Classical Kuiper Belt Objects
M. J. Brucker, W. M. Grundy, J. A. Stansberry +4
We present observations of thermal emission from fifteen transneptunian objects (TNOs) made using the Spitzer Space Telescope. Thirteen of the targets are members of the Classical…
Stellar Population Models and Individual Element Abundances II: Stellar Spectra and Integrated Light Models
H. -c. Lee, G. Worthey, A. Dotter +7
The first paper in this series explored the effects of altering the chemical mixture of the stellar population on an element by element basis on stellar evolutionary tracks and iso…
Absolute Magnitude Distribution And Light Curves Of Gamma-Ray Burst Supernovae
Dean Richardson
Photometry data were collected from the literature and analyzed for supernovae that are thought to have a gamma-ray burst association. There are several gamma-ray burst afterglow l…
Digging Into the Surface of the Icy Dwarf Planet Eris
M. R. Abernathy, S. C. Tegler, W. M. Grundy +4
We describe optical spectroscopic observations of the icy dwarf planet Eris with the 6.5 meter MMT telescope and the Red Channel Spectrograph. We report a correlation, that is at t…
First detection of hard X-ray photons in the soft X-ray transient Narrow-Line Seyfert 1 galaxy WPVS 007: The X-ray photon distribution observed by Swift
Dirk Grupe, Karen M. Leighly, Stefanie Komossa
We report on the first detection of hard X-ray photons (E>2.5 keV) in the X-ray transient Narrow-Line Seyfert 1 galaxy WPVS 007 which was the AGN with the softest X-ray spectrum du…
Model-Independent Distance Measurements from Gamma-Ray Bursts and Constraints on Dark Energy
Yun Wang
Gamma-Ray Bursts (GRB) are the most energetic events in the Universe, and provide a complementary probe of dark energy by allowing the measurement of cosmic expansion history that…