Dust-to-gas ratios in the Kepler supernova remnant

Details Dust-to-gas ratios in the Kepler supernova remnant Dust-to-gas ratios in the Kepler supernova remnant

2004-04-14

arxiv.org/abs/astro-ph/0404262v1

Astron.Astrophys. 422 (2004) 591-602

Astronomy and Astrophysics

Astrophysics

12 pages+5 figures, accepted for publication in A&A

Scientific paper

10.1051/0004-6361:20047001

A new method to evaluate the dust-to-gas ratios in the Kepler SNR is presented. Dust emission in the infrared and bremsstrahlung are calculated consistently, considering that dust grains are collisionally heated by the gas throughout the front and downstream of both the expanding and the reverse shocks. The dust-to-gas ratios are determined by the ratio of the dust emission bump and bremsstrahlung in the infrared. A maximum dust mass < 0.16 Mo is calculated.

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