Attenuation law of disk galaxies by the mega-grain approximation

Details Attenuation law of disk galaxies by the mega-grain approximation Attenuation law of disk galaxies by the mega-grain approximation

Jan 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005esasp.577..285i&link_type=abstract

In: Proceedings of the dusty and molecular universe: a prelude to Herschel and ALMA, 27-29 October 2004, Paris, France. Ed. by A

Physics

Dust: Extinction, Radiative Transfer

Scientific paper

The attenuation law through the clumpy interstellar medium (ISM) in disk galaxies is investigated. I adopted the mega-grain approximation, in which dusty clumps are regarded as very large particles (i.e. mega-grains), to treat the ISM clumpiness in a 1-D plane-parallel radiative transfer with multiple anisotropic scatterings. Further, a physical model of the clumpiness was introduced as an extension of the multi-phase ISM model. In this framework, the attenuation law is determined by three physical quantities in the ISM: the mean gas density, the mean pressure, and the dust-to-gas ratio. I found that the attenuation law of normal disk galaxies is much steeper than that of starburst galaxies observed by Calzetti et al.

Affiliated with

Also associated with

No associations

Rating

Attenuation law of disk galaxies by the mega-grain approximation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Attenuation law of disk galaxies by the mega-grain approximation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Attenuation law of disk galaxies by the mega-grain approximation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-899470