Other
Scientific paper
May 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007sptz.prop40341v&link_type=abstract
Spitzer Proposal ID #40341
Other
Scientific paper
We propose an archival imaging survey to study galactic winds from starbursts and active galactic nuclei. We will use all IRAC channels to map the detailed distribution of warm (T~500-1000 K) dust and PAH molecules in a sample of galaxies that are known to host outflows. These data will be compared to state-of-the-art, 3D numerical simulations of superwinds and predicted IRAC fluxes. Direct and indirect evidence shows that dust is present on large (kiloparsec) scales in outflows in some starburst and active galaxies. However, this dust has never been mapped at wavelengths of 1-20 micron, and its geometry, mass, and energy are almost completely unknown. Recent spectacular IRAC results on M82, as well as preliminary IRAC color maps made with archival data, suggest that this survey will yield exciting new insights on the warm dust and PAH emission in these outflows. We will ascertain the significance of dusty superwinds in the context of outflow physics and the impact of the outflows on the host galaxies and the intergalactic medium. We will compare the distribution, mass, and energy of the warm dust to optical emission-line and absorption-line, X-ray, and radio data compiled by us and other groups. Using new numerical simulations, we will also compare to the distribution and quantity of dust predicted by theory. Our archival survey will use observations of outflowing warm dust from various Spitzer programs that are focused on other science and combine them into a coherent program to study outflows. No such comprehensive program currently exists, but one is necessary to take full advantage of Spitzer in this field. The proposed IRAC survey is complementary to a MIPS survey of cold (T<100 K) dust in outflows, and will provide many advantages over the MIPS data.
Bicknell Geoffrey
Bland-Hawthorn Joss
Cooper Jackie
Engelbracht Charles
Regan Michael
No associations
LandOfFree
Opening the Window on Warm Dust in Starburst- and AGN-Driven Superwinds 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 Opening the Window on Warm Dust in Starburst- and AGN-Driven Superwinds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Opening the Window on Warm Dust in Starburst- and AGN-Driven Superwinds will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1748800