SPARC is a database of 175 late-type galaxies (spirals and irregulars) with Spitzer photometry at 3.6 mu (tracing the stellar mass distribution) and high-quality HI+Halpha rotation curves (tracing the gravitational potential out to large radii). SPARC spans a wide range in stellar masses (5 dex), surface brightnesses (>3 dex), and gas fractions. On this webpage you can download SPARC data and access our scientific publications.

If you are using data from this website in your scientific publications, please cite the SPARC master paper. References to the original HI+Halpha rotation curves are given in Table1.mrt. Please consider citing the original rotation-curve sources if relevant to your publication.

CORE TEAM
Federico Lelli | Stacy McGaugh | James Schombert

SPARC BUZZ
List of published papers: here.
List of related papers: here.
List of popular articles: here.

BASIC SPARC DATA (from Lelli+2016c)
Galaxy Sample: Table1.mrt (with references to the original rotation-curve data)
Photometric Profiles: zip file (on sky values in mag/arcsec^2 with no corrections for disk inclination or extinction)
Bulge-Disk Decompositions: zip file (uncorrected for inclination, some exponential profiles are extrapolated at large radii)
Bulge Luminosities: Table (WARNING: our decompositions are non-parametric and bulges are linearly extrapolated at large radii)
Newtonian Mass Models: Table2.mrt | zip file (rotation curves, baryonic contributions, inclination-corrected stellar density profiles)

SOFTWARE (NEW!)
BayesLineFit: MCMC code in Python-3 to fit a line to data with errors in both coordinates and intrinsic scatter (see Lelli+2019)
Archangel: Galaxy Photometry System for frame cleaning, ellipse fitting, surface brightness profiles, etc. (see Schombert 2007)

SCALING RELATIONS
Baryonic Tully-Fisher Relation: 2019 Data (from Lelli+2019) | 2016 Data (from Lelli+2016a)
Central Surface Density Relation: 2016 Data (from Lelli+2016b)
Radial Acceleration Relation: Binned Data | All Data (same as in Lelli+2017; McGaugh+2016)

FIGURES & VIDEOS
Mass Models for 175 SPARC LTGs: .pdf.zip | .png.zip (from Lelli+2016c)
Mass Models for 16 Rotating ETGs: .pdf.zip | .png.zip (from Lelli+2017a)
Radial Acceleration Relation Video: Video Player | Individual Frames (from Lelli+2017a)
Individual RAR fits to 175 LTGs: .pdf.tar.gz (from Li+2018)

DARK MATTER HALOS
Dark Matter Halo Fits: Fit plots | Triangle plots | MCMC Chains (from Li+2020)
HI linewidths vs Halo Mass: WP50_M200.mrt (from Li+2019b)
Empirical Halo Mass Functions: NFW | Einasto | DC14 (from Li+2019b)

EARLY-TYPE GALAXIES DATA (from Lelli+2017a)
Galaxy Sample: ETG_Lelli2017.mrt (drawn from Atlas3D)
Photometric Profiles: zip file (on sky values in mag/arcsec^2 with no corrections for disk inclination or extinction)
Bulge-Disk Decompositions: zip file (uncorrected for inclination, some exponential profiles are extrapolated at large radii)
Mass Models: zip file (velocity data, baryonic contributions, inclination-corrected stellar density profiles)

MAXIMUM DISK DATA (from Starkman+2018)
Maximum-Disk Galaxy Data: MaximumDiskData.mrt
Maximum-Disk Mass Models: MaximumDiskMassModels.mrt
Pyhton Code: zip file