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7 papers · 1 filter
Fermi LAT Observations of the Vela Pulsar
A. A. Abdo
The Vela pulsar is the brightest persistent source in the GeV sky and thus is the traditional first target for new gamma-ray observatories. We report here on initial Fermi Large Ar…
The Global Kinematics of the Globular Cluster M92
G. A. Drukier, H. N. Cohn, P. M. Lugger +3
We report the determination of high-accuracy radial velocities for 299 members of the globular cluster M92 using the Hydra multi-object spectrograph on the WIYN telescope. We have…
The Thermal Regulation of Gravitational Instabilities in Protoplanetary Disks III. Simulations with Radiative Cooling and Realistic Opacities
A. C. Boley, A. C. Mejia, R. H. Durisen +3
This paper presents a fully three-dimensional radiative hydrodymanics simulation with realistic opacities for a gravitationally unstable 0.07 Msun disk around a 0.5 Msun star. We a…
A Synoptic, Multiwavelength Analysis of a Large Quasar Sample
Adam W. Rengstorf, Robert J. Brunner, Brian C. Wilhite
We present variability and multi-wavelength photometric information for the 933 known quasars in the QUEST Variability Survey. These quasars are grouped into variable and non-varia…
The Effects of Metallicity and Grain Size on Gravitational Instabilities in Protoplanetary Disks
Kai Cai, Richard H. Durisen, Scott Michael +4
Observational studies show that the probability of finding gas giant planets around a star increases with the star's metallicity. Our latest simulations of disks undergoing gravita…
Three Years of ChaMPlane Northern Field WIYN Spectroscopy
A. B. Rogel, P. M. Lugger, H. N. Cohn +4
We present initial results of WIYN spectroscopic observations of selected objects detected in the Chandra Multiwavelength Plane (ChaMPlane) Survey in fields towards the Galactic an…