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Hα3: an Hα 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; Hector, Hernandez Toledo; Boselli, Alessandro; Giovanelli, Riccardo; Haynes, Martha P.

Hα3: an Hα imaging survey of HI selected galaxies from ALFALFA. V. The Coma supercluster survey completion Thumbnail


Authors

Giuseppe Gavazzi

Guido Consolandi

Elisa Viscardi

Matteo Fossati

Giulia Savorgnan

Leonel Gutierrez

Hernandez Toledo Hector

Alessandro Boselli

Riccardo Giovanelli

Martha P. Haynes



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 Hα is the most direct tracer of the process that transforms gas (fuel) into stars. We continue to present Hα3 (acronym for Hα − αα), an extensive Hα+[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 Hα imaging observations of 724 galaxies in the region of the Coma supercluster 10h < RA < 16h ; 24° < Dec < 28° and 3900

Citation

Gavazzi, G., Consolandi, G., Viscardi, E., Fossati, M., Savorgnan, G., Fumagalli, M., …Haynes, M. P. (2015). Hα3: an Hα imaging survey of HI selected galaxies from ALFALFA. V. The Coma supercluster survey completion. Astronomy & Astrophysics, 576, https://doi.org/10.1051/0004-6361/201425349

Journal Article Type Article
Acceptance Date Dec 19, 2014
Publication Date Apr 1, 2015
Deposit Date Mar 31, 2015
Publicly Available Date Mar 29, 2024
Journal Astronomy and astrophysics.
Print ISSN 0004-6361
Electronic ISSN 1432-0746
Publisher EDP Sciences
Peer Reviewed Peer Reviewed
Volume 576
DOI https://doi.org/10.1051/0004-6361/201425349
Keywords Galaxies: clusters: individual: Coma, Galaxy: fundamental parameters, Galaxies: ISM.

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Copyright Statement
Reproduced with permission from Astronomy & Astrophysics, © ESO, 2015.





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