NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2018-09-22 T07:47:11 PDT
Help | Comment | NED Home

For refcode 2015A&A...576A..16G:
Retrieve 739 NED objects in this reference.
Please click here for ADS abstract

NED Abstract

Copyright by European Southern Observatory (ESO). Reproduced by permission
2015A&A...576A..16G Halpha3: an Halpha imaging survey of HI selected galaxies from ALFALFA . V. The Coma supercluster survey completion Gavazzi, Giuseppe; Consolandi, Guido; Viscardi, Elisa; Fossati, Matteo; Savorgnan, Giulia; Fumagalli, Michele; Gutierrez, Leonel; Hernandez Toledo, Hector; Boselli, Alessandro; Giovanelli, Riccardo; Haynes, Martha P. Abstract. Neutral hydrogen represents the major observable baryonic constituent of galaxies that fuels the formation of stars through transformation of molecular hydrogen. The emission of the hydrogen recombination line Halpha is the most direct tracer of the process that transforms gas (fuel) into stars. We continue to present Halpha3 (acronym for Halpha - alphaalpha), an extensive Halpha+[NII] narrow-band imaging campaign of galaxies selected from the HI Arecibo Legacy Fast ALFA Survey (ALFALFA), using the instrumentation available at the San Pedro Martir (SPM) observatory (Mexico). In 48 nights since 2011 we were able to carry out the Halpha imaging observations of 724 galaxies in the region of the Coma supercluster 10^h^ < RA < 16^h^ ; 24^degree^ < Dec < 28^degree^ and 3900 <cz< 9000 km s^-1^. Of these, 603 are selected from the ALFALFA and constitute a 97% complete sample. They provide for the first time a complete census of the massive star formation properties of local gas-rich galaxies belonging to different environments (cluster vs. filaments), morphological types (spirals vs. dwarf Irr), over a wide range of stellar mass (~ 10^8^ - 10^11.5^M_sun_) in the Coma supercluster. The present Paper V provides Halpha data and derived star formation rates for the observed galaxies. The data available for the 724 galaxies are given in three tables, which are partially listed in the Appendix. The full tables, the Atlas, and the FITS images of the 724 targeted galaxies are distributed via http://goldmine.mib.infn.it/ (Gavazzi et al. 2003, 2014) under the section project/papers. Key words: galaxies: clusters: individual: Coma, Galaxy: fundamental parameters, galaxies: ISM
Retrieve 739 NED objects in this reference.
Please click here for ADS abstract

Back to NED Home