TY - JOUR
T1 - THE SPITZER SURVEY of STELLAR STRUCTURE in GALAXIES (S4G)
T2 - STELLAR MASSES, SIZES, and RADIAL PROFILES for 2352 NEARBY GALAXIES
AU - Muñoz-Mateos, Juan Carlos
AU - Sheth, Kartik
AU - Regan, Michael
AU - Kim, Taehyun
AU - Laine, Jarkko
AU - Ferrer, Santiago Erroz
AU - Paz, Armando Gil De
AU - Comeron, Sebastien
AU - Hinz, Joannah
AU - Laurikainen, Eija
AU - Salo, Heikki
AU - Athanassoula, E.
AU - Bosma, Albert
AU - Bouquin, Alexandre Y.K.
AU - Schinnerer, Eva
AU - Ho, Luis
AU - Zaritsky, Dennis
AU - Gadotti, Dimitri A.
AU - Madore, Barry
AU - Holwerda, Benne
AU - Menéndez-Delmestre, Karín
AU - Knapen, Johan H.
AU - Meidt, Sharon
AU - Querejeta, Miguel
AU - Mizusawa, Trisha
AU - Seibert, Mark
AU - Laine, Seppo
AU - Courtois, Helene
N1 - Publisher Copyright:
© 2015. The American Astronomical Society. All rights reserved.
PY - 2015/7/20
Y1 - 2015/7/20
N2 - The Spitzer Survey of Stellar Structure in Galaxies is a volume, magnitude, and size-limited survey of 2352 nearby galaxies with deep imaging at 3.6 and 4.5 μm. In this paper, we describe our surface photometry pipeline and showcase the associated data products that we have released to the community. We also identify the physical mechanisms leading to different levels of central stellar mass concentration for galaxies with the same total stellar mass. Finally, we derive the local stellar mass-size relation at 3.6 μm for galaxies of different morphologies. Our radial profiles reach stellar mass surface densities below . Given the negligible impact of dust and the almost constant mass-to-light ratio at these wavelengths, these profiles constitute an accurate inventory of the radial distribution of stellar mass in nearby galaxies. From these profiles we have also derived global properties such as asymptotic magnitudes (and the corresponding stellar masses), isophotal sizes and shapes, and concentration indices. These and other data products from our various pipelines (science-ready mosaics, object masks, 2D image decompositions, and stellar mass maps) can be publicly accessed at IRSA (http://irsa.ipac.caltech.edu/data/SPITZER/S4G/).
AB - The Spitzer Survey of Stellar Structure in Galaxies is a volume, magnitude, and size-limited survey of 2352 nearby galaxies with deep imaging at 3.6 and 4.5 μm. In this paper, we describe our surface photometry pipeline and showcase the associated data products that we have released to the community. We also identify the physical mechanisms leading to different levels of central stellar mass concentration for galaxies with the same total stellar mass. Finally, we derive the local stellar mass-size relation at 3.6 μm for galaxies of different morphologies. Our radial profiles reach stellar mass surface densities below . Given the negligible impact of dust and the almost constant mass-to-light ratio at these wavelengths, these profiles constitute an accurate inventory of the radial distribution of stellar mass in nearby galaxies. From these profiles we have also derived global properties such as asymptotic magnitudes (and the corresponding stellar masses), isophotal sizes and shapes, and concentration indices. These and other data products from our various pipelines (science-ready mosaics, object masks, 2D image decompositions, and stellar mass maps) can be publicly accessed at IRSA (http://irsa.ipac.caltech.edu/data/SPITZER/S4G/).
KW - galaxies: evolution
KW - galaxies: fundamental parameters
KW - galaxies: photometry
KW - galaxies: stellar content
KW - galaxies: structure
KW - surveys
UR - http://www.scopus.com/inward/record.url?scp=84938095546&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84938095546&partnerID=8YFLogxK
U2 - 10.1088/0067-0049/219/1/3
DO - 10.1088/0067-0049/219/1/3
M3 - Article
AN - SCOPUS:84938095546
SN - 0067-0049
VL - 219
JO - Astrophysical Journal, Supplement Series
JF - Astrophysical Journal, Supplement Series
IS - 1
M1 - 3
ER -