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Dust and Gas Interplay in Supernova RemnantsAAS meeting, Calgary, CanadaWednesday, June 7, 2006Photo: view of Peyto Lake near Calgary |
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Dust and Gas Interplay in Supernova RemnantsAAS meeting, Calgary, CanadaWednesday, June 7, 2006Photo: view of Peyto Lake near Calgary |
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AAS Page Abstract Submission (Deadline: 23 March 2006) Registration Calgary Tourism & Travel Guide Instructions to Authors
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Supernova remnants (SNRs) are among the most valuable astrophysical
laboratories to study such crucial phenomena as dust formation,
nucleosynthesis of heavy elements, physical processes of the
interstellar medium (ISM), and shock physics. Dust formation in
supernovae and the circumstellar medium has long been invoked to
understand dust grains and the large depletions of refractory elements
in the ISM. Recent discovery of huge quantities of dust in
high-redshift galaxies and quasars suggests that dust was efficiently
produced in the earliest supernovae in the Universe. Supernovae are
also
believed to be the source of local kinetic energy of the interstellar
medium, keeping the gas in motion and returning material from dense
molecular clouds into the more diffuse interstellar medium and the
galactic halo. Strong shock waves traversing the interstellar clouds
compress, heat, and chemically alter the medium. Interactions between
dust and hot gas are expected to occur to retain the local energy
balance. The topical session in the AAS meeting (June 2006) in
Calgary will highlight new results from the
Spitzer Space Telescope, Suzaku X-ray telescope, and
recent radio surveys, combined with Chandra, XMM, and optical
observations of supernova remnants, interstellar medium and massive
stars.
There has been major progress in observations of SNRs with new observatories in space: in infrared with Spitzer, in X-rays with Suzaku, Chandra and XMM, and in optical/near UV with HST/FUST. In addition ground based radio observations have improved significantly with radio surveys of large areas of the Galactic plane, such as the Canadian Galactic Plane Survey (CGPS) done with the Dominion Radio Astrophysical Observatory, the Very Large Array(VLA) Galactic Plane Survey (VGPS) done with the VLA, and the Southern Galactic Plane Survey (SGPS) done with the Australia Telescope. The ground-based radio surveys include continuum and HI line mapping of the Galaxy, and are leading to a new detailed understanding of the structure of our Galaxy and the properties of the ISM. Supernova remnants are a dominant contributor to the dynamics of the ISM, as well as being objects of interest for study of shocks, production and destruction of dust, and dispersal of elements from supernovae into the Galaxy. The study of supernova remnants has continued as an active field and the upcoming AAS summer meeting is an ideal time to have a gathering of researchers to synthesis progress in SNR research and discuss future directions. There are new observations that need to be done to enhance our understanding of the fields, and theoretical work to help guide those observations (as described in the item 9. on the meeting agenda). Therefore, it is extremely important to have a timely discussion to make best use of the currently operational space telescopes.
Topics include:
The Topical Session is organized by Jeonghee Rho (rho@ipac.caltech.edu), Denis Leahy (leahy@iras.ucalgary.ca), Crystal Brogan (cbrogan@ifa.hawaii.edu), William Reach, Lawrence Rudnick, Roland Kothes (Roland.Kothes@nrc-cnrc.gc.ca), and Samar Safi-Harb. Program (list of talks) is available and we invite abstracts for posters
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