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6 papers · 1 filter
Wide-Field Imaging and Polarimetry for the Biggest and Brightest in the 20GHz Southern Sky
S. Burke-Spolaor, R. D. Ekers, M. Massardi +4
We present wide-field imaging and polarimetry at 20GHz of seven of the most extended, bright (Stot >= 0.50 Jy), high-frequency selected radio sources in the southern sky with decli…
The ~0.9 mJy sample: A mid-infrared spectroscopic catalog of 150 infrared-luminous, 24 micron selected galaxies at 0.3<z<3.5
Kalliopi M. Dasyra, Lin Yan, George Helou +6
We present a catalog of mid-infrared (MIR) spectra of 150 infrared (IR) luminous galaxies in the Spitzer extragalactic first look survey obtained with IRS on board Spitzer. The sam…
The Star Formation History and Extended Structure of the Hercules Milky Way Satellite
D. J. Sand, E. W. Olszewski, B. Willman +5
We present imaging of the recently discovered Hercules Milky Way satellite and its surrounding regions to study its structure, star formation history and to thoroughly search for s…
The Dual Origin of Stellar Halos
Adi Zolotov, Beth Willman, Alyson M. Brooks +5
We investigate the formation of the stellar halos of four simulated disk galaxies using high resolution, cosmological SPH + N-Body simulations. These simulations include a self-con…
Dwarf Galaxies in 2010: Revealing Galaxy Formation's Threshold and Testing the Nature of Dark Matter
James S. Bullock, Manoj Kaplinghat, Andrew Fruchter +4
Over the past five years, searches in Sloan Digital Sky Survey data have more than doubled the number of known dwarf satellite galaxies of the Milky Way, and have revealed a popula…
Detection of the 3.3um PAH feature as well as water ice and HAC absorption in z~2 ULIRGs
A. Sajina, L. Yan, H. Spoon +1
We present preliminary results from the highest available signal-to-noise rest-frame 2-8um spectra of z~2 ULIRGs. Our 10 targets are selected for their deep silicate absorption fea…