Spitzer IRAC Mid-IR Photometry of Gallactic Globular Clusters.

Details Spitzer IRAC Mid-IR Photometry of Gallactic Globular Clusters. Spitzer IRAC Mid-IR Photometry of Gallactic Globular Clusters.

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21943808p&link_type=abstract

American Astronomical Society, AAS Meeting #219, #438.08

Astronomy and Astrophysics

Astronomy

Scientific paper

We present the first photometric results from a program to obtain Mid-IR photometry for a sample of 18 Gallactic Globular clusters. The objects in our sample span a wide parameter space in terms of stellar populations, structural parameters and Galactic coordinates, constituting a fundamental dataset to study old stellar populations in the Mid-IR and a benchmark for the Stellar Population Models in the Mid-IR. The importance of these models is going to increase in the light of the upcoming Mid-IR space-based telescopes (Spica and JWST). The current sample could also be used as a template to study old, metal-poor stellar populations. It is complemented with literature data to provide multi-wavelength Spectral Energy Distributions (SEDs) of the objects.

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