The DiskMass survey. I. : J/ApJ/716/198


Authors : Bershady M.A. orcid , Verheijen M.A.W., Swaters R.A. (hide) , Verheijen M.A.W., Swaters R.A. et..al

Bibcode : 2010ApJ...716..198B (ADS) (Simbad) (Objects) (hide)

CDS Keywords : Galaxies, nearby; Surveys
UAT : Galaxies, Surveys

Observation (OC)

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Inserted into VizieR : 18-Jun-2012
Last modification : 18-Oct-2017

The DiskMass survey. I. Overview. (2010)

Keywords : dark matter - galaxies evolution - galaxies: formation - galaxies: fundamental parameters - galaxies: halos - galaxies: kinematics and dynamics - galaxies: spiral - galaxies: stellar content - galaxies: structure

Abstract:We present a survey of the mass surface density of spiral disks, motivated by outstanding uncertainties in rotation-curve decompositions. Our method exploits integral-field spectroscopy to measure stellar and gas kinematics in nearly face-on galaxies sampled at 515, 660, and 860nm, using the custom-built SparsePak and PPak instruments. A two-tiered sample, selected from the UGC, includes 146 nearly face-on galaxies, with B<14.7 and disk scale lengths between 10 and 20 arcsec, for which we have obtained H{alpha} velocity fields; and a representative 46 galaxy subset for which we have obtained stellar velocities and velocity dispersions. The survey is augmented by 4-70um Spitzer IRAC and MIPS photometry, ground-based UBVRIJHK ...(more)
Abstract: (hide)
H{alpha} kinematic data were taken with the SparsePak integral-field unit (IFU) on the WIYN 3.5m telescope. We observed 137 galaxies over 13 runs from 2002 January to 2005 April totaling 41.5 nights, plus portions of two additional runs totaling 8 nights during SparsePak commissioning in 2001 May-June. Aperture-synthesis radio observations at 21cm have been obtained for 43 galaxies with either the VLA (seven galaxies in 2005), the WSRT (20 galaxies in 2007-2009, three overlapping with VLA), or the GMRT (19 galaxies in 2008-2009, one overlapping with VLA and WSRT, two others overlapping with WSRT). Spitzer near- and mid-infrared (4.5, 8, 24, and 70um) images were taken of the majority of the Phase-B sample (40 galaxies).

  • VII/26 : Uppsala General Catalogue of Galaxies (UGC) (Nilson 1973)
  • J/ApJS/166/505 : H{alpha} photometry of face-on galaxies (Andersen+, 2006)
  • J/AJ/131/2035 : B and R magnitudes for spiral galaxies (Galaz+, 2006)
  • J/A+A/442/137 : HI observations of WHISP disk galaxies (Noordermeer+, 2005)
  • J/ApJ/633/844 : Stellar mass in disk-dominated galaxies (Pizagno+, 2005)
  • J/A+AS/106/451 : Face-on disk galaxies photometry. I. (de Jong+, 1994)
  • J/AJ/106/530 : Low surface brightness disk galaxies (Bothun+, 1993)

                
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