2012IAUS..284..104S
The 3-dimensional structure of NGC 891 and M51
Schechtman-Rook, Andrew ( Department of Astronomy, University of Wisconsin-Madison, 425 N. Charter St., Madison, WI 53706 , ); Bershady, Matthew A. ( Department of Astronomy, University of Wisconsin-Madison, 425 N. Charter St., Madison, WI 53706 , ); Wood, Kenneth ( Department of Astronomy, University of Wisconsin-Madison, 425 N. Charter St., Madison, WI 53706 , ); Robitaille, Thomas P. ( Harvard-Smithsonian Center for Astrophysics, 60 Garden St., Cambridge, MA 02138 ) show affiliations
The Spectral Energy Distribution of Galaxies, Proceedings of the International Astronomical Union, IAU Symposium, Volume 284, p. 104-106
Published in Aug 2012
We investigate the three-dimensional structure of the nearby edge-on spiral galaxy NGC 891 using 3D Monte Carlo radiative transfer models, with realistic spiral structure and fractally clumped dust. Using the spiral and clumpiness parameters found from recently completed scattered light models we produce lower resolution SED models which reproduce the spatially-integrated UV-to-FIR SED of NGC 891. Our models contain a color gradient across the major axis of the galaxy - similar to what is seen in images of the NGC 891. With minor adjustment our SED models are able to match the SED of M51, a similar galaxy at a near face-on inclination.
Keywords:
Free Keywords: Astrophysics - Cosmology and Extragalactic Astrophysics; galaxies intergalactic medium; galaxies spiral; galaxies structure; galaxies: ISM; galaxies: spiral; galaxies: structure; radiative transfer
arXiv: Astrophysics - Cosmology and Extragalactic Astrophysics
(c) 2012: Copyright © International Astronomical Union 2012
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