The DiskMass Survey (DMS). XI. Full Ha sample

We present H{alpha}-region integral-field spectroscopy for 137 low-inclination, intermediate to late-type galaxies. Spectroscopic data, obtained with SparsePak and the Bench Spectrograph on the WIYN 3.5m telescope, span 6475-6880 {AA} with an instrumental resolution of 13km/s ({sigma}). The spectral range includes H{alpha} and [NII]{lambda}{lambda}6548,6584 for every source, and in most cases includes [SII]{lambda}{lambda}6717,6731. We present and publicly release 18288 calibrated spectra and visually inspected Gaussian line fits to the H{alpha} emission. Most measurements yield a signal-to-noise ratio above 5 in integrated H{alpha} line flux, adequate to derive reliable line centroids and widths. Second kinematic components are required to adequately describe the emission-line profile in 15% of reliable data. The H{alpha} velocity dispersion distribution peaks at 18km/s, modestly increasing with H{alpha} surface brightness, reaching 20km/s at {Sigma}H{alpha}=10^40^erg/s/kpc^2^. Lower-flux secondary components, when present, have widths of ~50km/s. These results agree well with previous echelle measurements of nearby galaxies. Velocity-field analysis yields kinematic inclinations, with a sample mean of 26{deg}. Large kinematic asymmetries systematically affect kinematic inclination estimates in a small fraction of our sample. When deviations from circular motion are below 10% of the projected velocity, kinematic inclinations are consistent, within errors, to estimates from inverting the Tully-Fisher relation. This confirms previous disk-submaximality estimates for galaxies with regular kinematics based on inclinations derived from inverting the Tully-Fisher relation.

Cone search capability for table J/ApJS/276/59/sample (Halpha velocity field parameters (Table 3) and photometric data and inverse Tully-Fisher inclinations (Table 4))

Identifier
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/ApJS/276/59
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/276/59
Related Identifier https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/276/59
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/ApJS/276/59
Provenance
Creator Swaters R.A.; Andersen D.R.; Bershady M.A.; Martinsson T.P.K.; Scholz P.,Verheijen M.A.W.; Westfall K.B.
Publisher CDS
Publication Year 2026
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Galactic and extragalactic Astronomy; Interdisciplinary Astronomy; Natural Sciences; Observational Astronomy; Physics