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Record 1 of 17338
The structure of NGC at 100, 160, and 200 microns - Continuum dust emission in a quiescent Sb galaxy
Author and Affiliation:
Engargiola, G.(NASA, Washington, DC, United States)
Harper, D. A.(Yerkes Observatory, Williams Bay, WI, United States)
Abstract: Observations of NGC 4565 at 100, 160, and 200 microns with the University of Chicago Far-Infrared Camera and the NASA-Kuiper Airborne Observatory are reported. In order to examine the dependence of FIR emission on spiral structure and star formation activity, these observations of NGC 4565, a quiescent Sb galaxy, are compared with observations of NGC 6946, an active Sc galaxy, made by Engargiola (1991) using the same instruments. Warm dust (30 K) in a bisymmetric spiral pattern superposed on an exponential disk of cool dust (20 K) can account for the FIR morphology of NGC 4565. Optical and IR data suggest that there are more embedded sources heating dust locally in the southeast arm region and more UV radiation from unobscured young stellar associations heating the cool, neutral medium in the northeast arm region.
Publication Date: Jul 20, 1992
Document ID:
19920065489
(Acquired Nov 22, 1995)
Accession Number: 92A48113
Subject Category: ASTROPHYSICS
Document Type: Journal Article
Publication Information: Astrophysical Journal, Part 1 (ISSN 0004-637X); 394; 1, Ju
Publisher Information: United States
Contract/Grant/Task Num: NGR-14-001-227
Financial Sponsor: NASA; United States
Organization Source: NASA; Washington, DC, United States
Description: 13p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: COSMIC DUST; EMISSION SPECTRA; GALACTIC STRUCTURE; INFRARED ASTRONOMY; SPIRAL GALAXIES; ASTRONOMICAL MODELS; BRIGHTNESS DISTRIBUTION; FAR INFRARED RADIATION; INFRARED SPECTROSCOPY; LUMINOSITY; STAR FORMATION
Imprint And Other Notes: Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 394, no. 1, July 20, 1992, p. 104-116.
Availability Source: Other Sources
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