An dust extinction map of M51 from counts of distant galaxies

Details An dust extinction map of M51 from counts of distant galaxies An dust extinction map of M51 from counts of distant galaxies

Jul 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005hst..prop10662h&link_type=abstract

HST Proposal ID #10662

Computer Science

Hst Proposal Id #10662 Galaxies

Scientific paper

The number of distant galaxies seen in Heritage Project's ACS images of M51 can be used to probe the extinction in this spiral disk. The ``Synthetic Field Method'' {Gonzalez et al. {1998}, Holwerda et al. {2005a}} can be used to calibrate this number for crowding and confusion effects. The Heritage Project observing strategy is very suitable for this kind of work. The total extinction of the disk can be compared to the disk emission, such as SCUBA sub-mm observations and Spitzer maps and the atomic hydrogen column density {HI}. Such comparisons will reveal the role of dust in spiral disk of M51.

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