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Dust Temperatures and Opacities in the Central Parsec of the Galactic Center Modeled from Analysis of Multi-wavelength Mid-infrared Images

Part of: IAU Issue 315 - From Interstellar Clouds...

Published online by Cambridge University Press:  12 September 2016

F. Varosi ,
D. Gezari ,
E. Dwek  and
C. Telesco
F. Varosi
Affiliation:
Univ. of Florida-Gainesville, USA email: varosi@astro.ufl.edu
D. Gezari
Affiliation:
NASA/GSFC, Greenbelt, MD USA
E. Dwek
Affiliation:
NASA/GSFC, Greenbelt, MD USA
C. Telesco
Affiliation:
Univ. of Florida-Gainesville, USA email: varosi@astro.ufl.edu
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We have analyzed multi-wavelength mid-infrared images of the central parsec of the Galactic Center using a two-temperature line-of-sight (LOS) radiative transfer model at each pixel of the images, giving maps of temperatures, luminosities and opacities of the hot, warm, cold (dark) dust components. The data consists of images at nine wavelengths in the mid-infrared (N-band and Q-band) from the Thermal Region Camera and Spectrograph (T-ReCS) instrument operating at the Gemini South Observatory. The results of the LOS modeling indicate that the extinction optical depth is quite large and varies substantially over the FOV.

Type
Poster Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Symposium S315: From Interstellar Clouds to Star-Forming Galaxies: Universal Processes? , August 2015 , E79
Copyright
Copyright © International Astronomical Union 2016 

References

Dwek, E. and Varosi, F. 1998, NASA/Goddard - Technical Report.Google Scholar
Varosi, F., 2015, private communication.Google Scholar