Computer Science
Scientific paper
May 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007sptz.prop40204k&link_type=abstract
Spitzer Proposal ID #40204
Computer Science
Scientific paper
The Local Volume Legacy (LVL) is an IRAC and MIPS survey of a volume-complete sample of 258 galaxies within the 11 Mpc local volume. Its broad goal is to provide critical insight into two of the primary processes that shape the growth of galaxies: star formation and its interaction with the interstellar medium. This goal will be accomplished by investigating the spatially-resolved star formation, dust, and red stellar populations of local galaxies which span the full diversity of luminosities, surface brightnesses, metallicities, dust properties, and star formation properties. The survey will also provide an infrared and multi-wavelength census of the Galactic neighborhood, exploiting the highest spatial resolution and absolute depth achievable with Spitzer. LVL is unique in that it extends current Spitzer observations of galaxies to an unbiased, fully representative, and statistically robust sample of nearby galaxies. The tiered survey includes: (1) all known galaxies inside a sub-volume bounded by 3.5 Mpc (HST ANGST Treasury survey), and (2) an unbiased sample of S-Irr galaxies within the larger, and more representative, 11 Mpc sphere (GALEX 11HUGS survey). Our strategy provides volume-complete coverage of galaxies over the entire luminosity function, with the minimum sample needed to fully characterize the local galaxy population. The Spitzer observations will leverage a rich suite of multi-wavelength ancillary data from the ANGST and 11HUGS surveys, including H-alpha and GALEX UV imaging, stellar population mapping with HST, HI mapping with the VLA and GMRT, and broad-band optical imaging and spectroscopy, to enhance the scientific return and provide an enduring core dataset on the Galactic neighborhood for the scientific community at large.
Begum Ayesha
Calzetti Daniela
Dalcanton Julianne
Dale Danny
Engelbracht Charles
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