Halpha3: Halpha imaging survey of HI selected galaxies from ALFALFA

Abstract

We present Halpha3 (acronym for Halpha-alpha-alpha), an Halpha narrow-band imaging survey of ~400 galaxies selected from the HI Arecibo Legacy Fast ALFA Survey (ALFALFA) in the Local Supercluster, including the Virgo cluster. By using hydrogen recombination lines as a tracer of recent star formation, we aim to investigate the relationships between atomic neutral gas and newly formed stars in different environments (cluster and field), morphological types (spirals and dwarfs), and over a wide range of stellar masses (~10^7.5-10^11.5 Msun). We image in Halpha+[NII] all the galaxies that contain more than 10^7 Msun of neutral atomic hydrogen in the sky region 11^h < R.A. <16^h 4^o < Dec. <16^o; 350< cz <2000 km/s using the San Pedro Martir 2m telescope. This survey provides a complete census of the star formation in HI rich galaxies of the local universe. We present the properties of the galaxy sample, together with Halpha fluxes and equivalent widths. We find an excellent agreement between the fluxes determined from our images in apertures of 3 arcsec diameter and the fluxes derived from the SDSS spectral database. From the Halpha fluxes corrected for galactic and internal extinction and for [NII] contamination we derive the global star formation rates (SFRs).

22 pages, 8 figures. A&A accepted. Atlas available upon request

References in corpus (12)

• An H-alpha Imaging Survey of Galaxies in the Local 11 Mpc Volume
• On the influence of ram-pressure stripping on the star formation of simulated spiral galaxies
• The Arecibo Legacy Fast ALFA Survey: III. HI Source Catalog of the Northern Virgo Cluster Region
• Converting H$\alpha$ Luminosities into Star Formation Rates
• The Arecibo Legacy Fast ALFA Survey: IV. Strategies for Signal Identification and Survey Catalog Reliability
• Ram-pressure stripped molecular gas in the Virgo spiral galaxy NGC 4522
• The Star Formation Demographics of Galaxies in the Local Volume
• Ram pressure stripping of the multiphase ISM in the Virgo cluster spiral galaxy NGC 4438
• The Arecibo Legacy Fast ALFA Survey: VI. Second HI Source Catalog of the Virgo Cluster Region
• The relationship between gas content and star formation rate in spiral galaxies. Comparing the local field with the Virgo cluster
• Spatially Resolved Galaxy Star Formation and its Environmental Dependence I
• HI content and other structural properties of galaxies in the Virgo cluster from the Arecibo Legacy Fast ALFA Survey

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