THE DISKMASS SURVEY. I. OVERVIEW

By M. Bershady, Marc A. W. Verheijen, R. Swaters, D. Andersen, K. Westfall, T. Martinsson. 2010

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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 860 nm, 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 Hα velocity fields; and a representative 46 galaxy subset for which we have obtained stellar velocities and velocity dispersions. Based on re-calibration of extant photometric and spectroscopic data, we show that these galaxies span factors of 100 in LK (0.03 < L/L*K < 3), 8 in LB/LK, 10 in R-band disk central surface brightness, with distances between 15 and 200 Mpc. The survey is augmented by 4–70 μm Spitzer IRAC and MIPS photometry, ground-based UBVRIJHK photometry, and H i aperture-synthesis imaging. We outline the spectroscopic analysis protocol for deriving precise and accurate line-of-sight stellar velocity dispersions. Our key measurement is the dynamical disk-mass surface density. Star formation rates and kinematic and photometric regularity of galaxy disks are also central products of the study. The survey is designed to yield random and systematic errors small enough (1) to confirm or disprove the maximum-disk hypothesis for intermediate-type disk galaxies, (2) to provide an absolute calibration of the stellar mass-to-light ratio well below uncertainties in present-day stellar-population synthesis models, and (3) to make significant progress in defining the shape of dark halos in the inner regions of disk galaxies.

Subfields: Astronomy and Astrophysics, Instrumentation

View Paper: https://www.semanticscholar.org/paper/b57fc072b5ccb76558ef57ef5f1550ea47d9c861

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Citations in the corpus

CALIFA : a diameter-selected sample for an integral field spectroscopy galaxy survey (2014, methodology): “The PPak IFU was designed and custom-built for the DiskMass Survey, which studies a size-selected sample of nearly face-on spiral galaxies based on isophotal diameters and signal-to-noise considerations (Verheijen et al. 2004; Bershady et al. 2010).”
Structure and Kinematics of Early-Type Galaxies from Integral Field Spectroscopy (2016, background): “This is the time when the first generation of IFS surveys, which targeted one galaxy at a time (SAURON de Zeeuw et al. 2002, ATLAS3D Cappellari et al. 2011a, CALIFA Sánchez et al. 2012, DiskMass Bershady et al. 2010) have been completed and a new generation of multiplexed IFS surveys, which can obs”
SPARC: MASS MODELS FOR 175 DISK GALAXIES WITH SPITZER PHOTOMETRY AND ACCURATE ROTATION CURVES (2016, methodology): “To address this issue, the DiskMass Survey (DMS, Bershady et al. 2010a) measured the vertical velocity dispersion of disk stars in 30 face-on spirals and employed the theoretical relation between vertical velocity dispersion, disk scale height, and dynamical surface density (valid for a…”
Improving the full spectrum fitting method: accurate convolution with Gauss-Hermite functions (2016, background): “For more than a decade, this information has been extracted from IFS data by surveys targeting one galaxy at a time (SAURON de Zeeuw et al. 2002; DiskMass Bershady et al. 2010; ATLAS3D Cappellari et al. 2011; CALIFA Sánchez et al. 2012).”
COLOR–MASS-TO-LIGHT-RATIO RELATIONS FOR DISK GALAXIES (2014, result): “Our results are simultaneously consistent and in conflict with those of the disk mass survey (Bershady et al. 2010).”
Cold dark matter haloes in the Planck era: evolution of structural parameters for Einasto and NFW profiles (2014, background): “The black pentagons show observational results for spiral galaxies at redshift z ≃ 0 from the DiskMass project (Bershady et al. 2010; Martinsson et al. 2013).”
The Auriga Project: the properties and formation mechanisms of disc galaxies across cosmic time (2016, methodology): “Following Obreja et al. (2016), we exploit data from the DiskMass Integral Field Unit spectroscopic survey (Bershady et al. 2010) in order to compare the vertical structure of our simulated galaxies to external disc galaxies.”
OVERVIEW OF THE SDSS-IV MaNGA SURVEY: MAPPING NEARBY GALAXIES AT APACHE POINT OBSERVATORY (2014, methodology): “The expected AD signal is ∼10-20 km s−1 based on the Milky Way and observations from the DiskMass Survey (Bershady et al. 2010), well within MaNGA’s reach at even modest signal-to-noise ratio.”
SDSS-IV/MaNGA: SPECTROPHOTOMETRIC CALIBRATION TECHNIQUE (2015, background): “Of particular relevance in motivating our approach are the DiskMass, PINGS, CALIFA, and VENGA surveys, as all of these make use of fiber bundles with incomplete spatial coverage.”
The SDSS-IV MaNGA Sample: Design, Optimization, and Usage Considerations (2017, methodology): “…for statistical analyses of resolved galaxy samples, and complements existing, smaller data sets such as ATLAS3D (Cappellari et al. 2011), DiskMass (Bershady et al. 2010), and CALIFA (Sánchez et al. 2012), as well as forthcoming data from instruments such as MUSE (Bacon et al. 2010) and KCWI…”
THE DATA REDUCTION PIPELINE FOR THE SDSS-IV MaNGA IFU GALAXY SURVEY (2016, background): “In the nearby universe for instance, observations from the DiskMass survey (Bershady et al. 2010) have indicated that late-type galaxies tend to have sub-maximal disks (Bershady et al. 2011), while Atlas-3D observations (Cappellari et al. 2011a) showed that early-type galaxies frequently have…”
The DiskMass Survey VII. The distribution of luminous and dark matter in spiral galaxies (2013, unknown): “One of the main goals of the DiskMass Survey (DMS; Bershady et al. 2010a, hereafter Paper I) is to break the diskhalo degeneracy using stellar and gas kinematics to determine the dynamical mass-to-light ratio of the galaxy disk (Υdyn).”
The ATLAS3D project – XX. Mass–size and mass–σ distributions of early-type galaxies: bulge fraction drives kinematics, mass-to-light ratio, molecular gas fraction and stellar initial mass function (2012, unknown): “As part of the DiskMass Survey (Bershady et al. 2010), which obtained integralfield stellar kinematics of a sample of 30 spiral galaxies, a light IMF was indirectly confirmed from the submaximality of the discs (Bershady et al. 2011).”
The distribution of dark matter in galaxies (2018, methodology): “The main goal of the DiskMass Survey (Bershady et al. 2010a, b) was to determine the dynamical mass-to-light ratio of the galaxy disks (M/L)dyn by a suitable use of the stellar and gas kinematics.”
The CALIFA survey across the Hubble sequence: Spatially resolved stellar population properties in galaxies (2015, background): “Detailed programs such as SAURON (Bacon et al. 2001), VENGA (Blanc et al. 2013), (U)LIRs at z ≤0.26 (Arribas et al. 2010), PINGS (Rosales-Ortega et al. 2010), or DiskMass Survey (Bershady et al. 2010), have been limited to less than a hundred galaxies, but it is more than fair to recognize that to g”
Dark halo response and the stellar initial mass function in early-type and late-type galaxies (2010, methodology): “This method is being applied by the Disk Mass Survey (Verheijen et al. 2007; Bershady et al. 2010).”
Galaxy Masses: A Review (2013, methodology): “Furthermore, Bershady et al. (2011) showed that the edge-on sample of Kregel et al. (2005) and the face-on sample (so-called “DiskMass Survey”) of Bershady et al. (2010a) yield similar distributions of Vdisk versus Vz.”