Stellar population synthesis of clumps

DOI

We have identified 1027 star-forming complexes in a sample of 46 galaxies from the Spirals, Bridges, and Tails (SB&T) sample of interacting galaxies, and 693 star-forming complexes in a sample of 38 non-interacting spiral (NIS) galaxies in 8{mu}m observations from the Spitzer Infrared Array Camera. We have used archival multi-wavelength UV-to IR observations to fit the observed spectral energy distribution of our clumps with the Code Investigating GALaxy Emission using a double exponentially declined star formation history. We derive the star formation rates (SFRs), stellar masses, ages and fractions of the most recent burst, dust attenuation, and fractional emission due to an active galactic nucleus for these clumps. The resolved star formation main sequence holds on 2.5kpc scales, although it does not hold on 1kpc scales. We analyzed the relation between SFR, stellar mass, and age of the recent burst in the SB&T and NIS samples, and we found that the SFR per stellar mass is higher in the SB&T galaxies, and the clumps are younger in the galaxy pairs. We analyzed the SFR radial profile and found that the SFR is enhanced through the disk and in the tidal features relative to normal spirals.

Cone search capability for table J/ApJS/234/35/table2 (*Spirals, Bridges, and Tails (SB&T) galaxies sample (Smith+ 2007, J/AJ/133/791 ; 2010, J/AJ/139/1212))

Cone search capability for table J/ApJS/234/35/table3 (*Non-interacting spiral (NIS) galaxies sample (Kennicutt+ 2003PASP..115..928K & Gil de Paz+ 2007, J/ApJS/173/185))

Cone search capability for table J/ApJS/234/35/table4 (GALEX, Spitzer, SDSS, H{alpha}, and 2MASS photometry for the clumps)

Identifier
DOI http://doi.org/10.26093/cds/vizier.22340035
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/ApJS/234/35
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/234/35
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/234/35
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/ApJS/234/35
Provenance
Creator Zaragoza-Cardiel J.; Smith B.J.; Rosado M.; Beckman J.E.; Bitsakis T.,Camps-Farina A.; Font J.; Cox I.S.
Publisher CDS
Publication Year 2018
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Galactic and extragalactic Astronomy; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy