The Spectrum of Integrated Millimeter Flux of the Magellanic Clouds and 30-Doradus from TopHat and DIRBE Data

We present measurements of the integrated flux relative to the local background of the Large and Small Magellanic Clouds and the region 30-Doradus (the Tarantula Nebula) in the LMC in four frequency bands centered at 245, 400, 460, and 630 GHz, based on observations made with the TopHat telescope. W...

Full description

Saved in:
Bibliographic Details
Published in:arXiv.org 2003-06
Main Authors: Aguirre, J E, Bezaire, J J, Cheng, E S, Cottingham, D A, Cordone, S S, Crawford, T M, Fixsen, D J, Knox, L, Meyer, S S, Norgaard-Nielsen, H U, Silverberg, R F, Timbie, P, Wilson, G W
Format: Article
Language:English
Subjects:
Dust
Emission spectra
Frequencies
Frequency ranges
Magellanic clouds
Micrometers
Nebulae
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We present measurements of the integrated flux relative to the local background of the Large and Small Magellanic Clouds and the region 30-Doradus (the Tarantula Nebula) in the LMC in four frequency bands centered at 245, 400, 460, and 630 GHz, based on observations made with the TopHat telescope. We combine these observations with the corresponding measurements for the DIRBE bands 8, 9, and 10 to cover the frequency range 245 - 3000 GHz (100 - 1220 micrometers) for these objects. We present spectra for all three objects and fit these spectra to a single-component greybody emission model and report best-fit dust temperatures, optical depths, and emissivity power-law indices, and we compare these results with other measurements in these regions and elsewhere. Using published dust grain opacities, we estimate the mass of the measured dust component in the three regions.
ISSN:2331-8422
DOI:10.48550/arxiv.0306425