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- Argonne National LaboratoryUS329 papers
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15 papers · 2 filters
AGN torus properties with WISE
Robert Nikutta, Maia Nenkova, Zeljko Ivezic +2
The Wide-field Infrared Survey Explorer (WISE) has scanned the entire sky with unprecedented sensitivity in four infrared bands, at 3.4, 4.6, 12, and 22 micron. The WISE Point Sour…
Evolution of Broad-line Emission from Active Galactic Nuclei
Moshe Elitzur, Luis C. Ho, Jonathan R. Trump
Apart from viewing-dependent obscuration, intrinsic broad-line emission from active galactic nuclei (AGNs) follows an evolutionary sequence: Type …
Optical-faint, Far-infrared-bright Herschel Sources in the CANDELS Fields: Ultra-Luminous Infrared Galaxies at z>1 and the Effect of Source Blending
Haojing Yan, Mauro Stefanon, Zhiyuan Ma +11
The Herschel very wide-field surveys have charted hundreds of square degrees in multiple far-IR (FIR) bands. While the Sloan Digital Sky Survey (SDSS) is currently the best resourc…
Effects of External Radiation Fields on Line Emission - Application to Star-forming Regions
Marios Chatzikos, Gary Ferland, Robin Williams +2
A variety of astronomical environments contain clouds irradiated by a combination of isotropic and beamed radiation fields. For example, molecular clouds may be irradiated by the i…
The Stellar Number Density Distribution in the Local Solar Neighborhood is North-South Asymmetric
Brian Yanny, Susan Gardner
We study the number density distribution of a sample of K and M dwarf stars, matched North and South of the Galactic plane within a distance of 2 kpc from the sun, using observatio…
The James Clerk Maxwell Telescope Nearby Galaxies Legacy Survey IX: CO Observations of NGC 2976 and NGC 3351
Boon-Kok Tan, J. Leech, D. Rigopoulou +20
We present CO \textit{J=32} maps of NGC 2976 and NGC 3351 obtained with the James Clerk Maxwell Telescope (JCMT), both early targets of the JCMT Nearby Galaxy L…