A complete spectroscopic catalogue of local galaxies in the Northern spring sky -- Gas properties and nuclear activity in different environments
Federico Cattorini, Giuseppe Gavazzi, Alessandro Boselli, Matteo, Fossati

TL;DR
This paper presents SPRING, a comprehensive spectroscopic catalogue of over 30,000 local galaxies in the Northern spring sky, analyzing their gas properties and nuclear activity across different environments.
Contribution
It provides a complete, flux- and volume-limited galaxy sample with new calibrations and detailed environmental and nuclear activity analysis, including the role of HI content and galaxy environment.
Findings
Identification of a filamentary structure between Virgo and Coma clusters.
HI-deficient galaxies are more common in filaments, indicating transitional environments.
The fraction of star-forming nuclei varies with environment and galaxy mass.
Abstract
With the aim of providing the complete demography of galaxies in the local Universe, including their nuclear properties, we present SPRING, a complete census of local galaxies limited to the spring quarter of the Northern sky (10h< RA <16h; 0< Dec <65). The SPRING catalogue is a flux- and volume-limited sample (r < 17.7 mag, cz < 10000 km/s) of 30597 galaxies, including the Virgo, Coma and A1367 clusters. To inspect possible secular and environmental dependencies of the various nuclear excitation properties (SF vs. AGN), we perform a multidimensional analysis by dividing the sample according to (i) their position in the (NUV-i) vs. M* diagram,(ii) local galaxy density, (iii) stellar-mass, (iv) halo-mass of the group to which galaxies belong, and (v) neutral Hydrogen content. We present a new calibration of the optical diameter-based HI-deficiency parameter employing a reference sample…
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Taxonomy
TopicsGalaxies: Formation, Evolution, Phenomena · Spectroscopy and Laser Applications · Impact of Light on Environment and Health
