Abstract
The effect of galaxy interactions on star formation has been investigated using Data Release 1 (DR1) of the Sloan Digital Sky Survey (SDSS). Both the imaging and spectroscopy data products have been used to construct a catalogue of nearest companions to a volume limited (0.03 < z < 0.1) sample of galaxies drawn from the main galaxy sample of SDSS. Of the 13973 galaxies in the volume limited sample, we have identified 12492 systems with companions at projected separations less than 300 kpc. Star‐formation rates for the volume‐limited sample have been calculated from extinction and aperture corrected Hα luminosities and, where available, IRAS data. Specific star formation rates were calculated by estimating galaxy masses from z‐band luminosities, and r‐band concentration indices were used as an indicator of morphological class. The mean specific star‐formation rate is significantly enhanced for projected separations less than 25 kpc. For late‐type galaxies the correlation extends out to projected separation...
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
