IRS Assessment of Star Formation and Galactic Evolution in Ellipticals with resolved Cold ISM

Details IRS Assessment of Star Formation and Galactic Evolution in Ellipticals with resolved Cold ISM IRS Assessment of Star Formation and Galactic Evolution in Ellipticals with resolved Cold ISM

May 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006sptz.prop30444d&link_type=abstract

Spitzer Proposal ID #30444

Computer Science

Scientific paper

We propose to use Spitzer-IRS to measure the mid-IR spectral features of polycyclic aromatic hydrocarbons (PAHs) and silicates from a sample of nearby, elliptical galaxies. This sample of galaxies covers a range of merger tracers or ages, and more importantly is a sample where recent observations have resolved cold gas and dust emission. The emission from the cold ISM in these ellipticals is more compact than their stellar distributions, and may imply star-formation activity in these compact regions fueled by gas and dust externally accreted and decoupled from the stellar components. Our primary aim with these Spitzer observations is to obtain PAH and silicate, long-slit spectra that can be used as an independent measure of the level and period of star-formation activity and its spatial distribution within these galaxies. The secondary aim is to use the IRS intensity and spatial data in comparison with the resolved cold gas and dust images to gain more information about the nature and evolution of the dust in the sparse ISM in these galaxies. The results will help assess the possibility that these are elliptical galaxies with cold gas and dust and (subsequent) star formation.

Affiliated with

Also associated with

No associations

Rating

IRS Assessment of Star Formation and Galactic Evolution in Ellipticals with resolved Cold ISM 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 IRS Assessment of Star Formation and Galactic Evolution in Ellipticals with resolved Cold ISM, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and IRS Assessment of Star Formation and Galactic Evolution in Ellipticals with resolved Cold ISM will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-934356