J/AJ/167/31 Nearby galaxies within 50Mpc from NSA, LVG & Leda (Ohlson+, 2024)
The 50 Mpc Galaxy Catalog (50 MGC): consistent and homogeneous masses,
distances, colors, and morphologies.
Ohlson D., Seth A.C., Gallo E., Baldassare V.F., Greene J.E.
<Astron. J., 167, 31 (2024)>
=2024AJ....167...31O 2024AJ....167...31O
ADC_Keywords: Galaxies, nearby; Galaxy catalogs; Optical; Galaxies, radius;
Extinction; Radial velocities; Magnitudes, absolute; Colors;
Morphology; X-ray sources
Keywords: AGN host galaxies ; Catalogs ; X-ray sources ;
Supermassive black holes ; Dwarf galaxies ; Galaxies
Abstract:
We assemble a catalog of 15424 nearby galaxies within 50Mpc with
consistent and homogenized mass, distance, and morphological type
measurements. Our catalog combines galaxies from HyperLeda, the
NASA-Sloan Atlas, and the Catalog of Local Volume Galaxies. Distances
for the galaxies combine best-estimates for flow-corrected
redshift-based distances with redshift-independent distances. We also
compile magnitude and color information for 11740 galaxies. We use the
galaxy colors to estimate masses by creating self-consistent
color-mass-to-light ratio relations in four bands; we also provide
color transformations of all colors into Sloan g-i by using galaxies
with overlapping color information. We compile morphology information
for 13744 galaxies, and use the galaxy color information to separate
early- and late- type galaxies. This catalog is widely applicable for
studies of nearby galaxies and for placing these studies in the
context of more distant galaxies. We present one application here: a
preliminary analysis of the nuclear X-ray activity of galaxies. Out of
1506 galaxies within the sample that have available Chandra X-ray
observations, we find that 291 have detected nuclear sources. Of the
291 existing Chandra detections, 249 have log(LX)>38.3 and available
stellar mass estimates. We find that the X-ray active fractions in
early-type galaxies are higher than in late-type galaxies, especially
for galaxy stellar masses between 109 and 1010.5M☉. We show
that these differences may be due at least in part to the increased
astrometric uncertainties in late-type galaxies relative to early
types.
Description:
Our catalog is formed from three base sources, the Local Volume Galaxy
(LVG) catalog (Karachentsev+ 2013, J/AJ/145/101), HyperLeda (Makarov+
2014A&A...570A..13M 2014A&A...570A..13M ; see VII/237), and the NASA-Sloan Atlas (NSA;
http://nsatlas.org/).
We visually inspected 150 galaxies with overlap between HyperLeda and
either LVG (739 galaxies) or NSA (7136 galaxies). We randomly selected
these galaxies to have a range of offsets between 1" and 10". We
compared the galaxy positions to imaging with SDSS and 2MASS, both of
which have good astrometry. This visual inspection suggests that in
general, the HyperLeda positions are better aligned with the
photocenter than the LVG and NSA samples. We therefore use the
following priority order for the ra and dec in our catalog: HyperLeda,
LVG, and NSA. See Section 2.1.2.
We determined which galaxies in our catalog have available Chandra
X-ray data using the Chandra Source Catalog 2.0 (Evans+ 2019, IX/57
and I. N. Evans 2023, in preparation), which includes Chandra
observations made public before the end of 2014. See Section 6.2.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 41 1276 *NSA objects that do not match galaxies in the
HyperLeda and Local Volume Galaxy (LVG) catalogs
tablea1.dat 449 15424 *Catalog
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Note on table1.dat and tablea1.dat: These tables are also available (and
potentially updated) at http://github.com/davidohlson/50MGC
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See also:
VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)
VII/237 : HYPERLEDA. I. Catalog of galaxies (Paturel+, 2003)
IX/57 : The Chandra Source Catalog (CSC), Release 2.0 (Evans+, 2019)
V/154 : Sloan Digital Sky Surveys (SDSS), Release 16 (DR16) (Ahumada+, 2020)
J/AJ/90/1681 : The Virgo Cluster Catalog (VCC) (Binggeli+, 1985)
J/AJ/130/873 : Properties BQS objects in the SDSS DR3 area (Jester+, 2005)
J/ApJS/164/334 : ACS Virgo Cluster Survey. VI (Ferrarese+, 2006)
J/ApJ/655/144 : ACS Virgo Cluster Survey. XIII. (Mei+, 2007)
J/AJ/138/1243 : The star formation history of the LMC (Harris+, 2009)
J/ApJ/714/25 : AMUSE-Virgo survey. II. (Gallo+, 2010)
J/PASP/122/1397 : Spitzer Survey Stellar Structure in Galaxies (Sheth+, 2010)
J/MNRAS/413/813 : ATLAS3D project. I. (Cappellari+, 2011)
J/AJ/144/4 : Prop of dwarf galaxies in Local Group (McConnachie+, 2012)
J/AJ/145/101 : Updated nearby galaxy catalog (Karachentsev+, 2013)
J/ApJ/775/116 : z<0.06 active black hole galaxies SDSS-DR8 (Reines+, 2013)
J/MNRAS/445/881 : LVL global optical photometry (Cook+, 2014)
J/ApJS/215/22 : The Extended Virgo Cluster Catalog (EVCC) (Kim+, 2014)
J/MNRAS/446/4039 : Stellar kinematics for NGC 2859 and NGC 4371 (Erwin+, 2015)
J/ApJ/835/223 : A catalog of nearby galaxies with Chandra obs. (She+, 2017)
J/ApJ/858/118 : Kinematic data of 3 nearby low-mass galaxies (Nguyen+, 2018)
J/ApJ/853/62 : Optical & NIR spectra & LCs of SN2016ija (Tartaglia+, 2018)
J/ApJS/243/3 : Chandra observations of SINGS galaxies (Lehmer+, 2019)
J/ApJ/900/124 : Galaxies within 150Mpc observed with Chandra (Bi+, 2020)
J/MNRAS/497/2954 : 2MASS redshift survey galaxy group cat. (Lambert+, 2020)
J/AJ/160/199 : Estimated distances ∼12000 galaxies with NED-D (Steer, 2020)
J/MNRAS/507/3246 : Nuclear classification of local volume gal. (Hoyer+, 2021)
J/ApJ/914/16 : NGC 5128 GCs from PISCes, Gaia DR2 and NSC (Hughes+, 2021)
J/ApJ/933/47 : The ELVES survey photometric results (Carlsten+, 2022)
J/ApJS/269/3 : Siena Galaxy Atlas 2020 (SGA-2020) (Moustakas+, 2023)
http://nsatlas.org/ : NASA-Sloan Atlas (NSA) home page
http://atlas.obs-hp.fr/hyperleda/ : HyperLeda home page
http://ned.ipac.caltech.edu/ : NASA/IPAC Extragalactic Database (NED) homepage
http://www.legacysurvey.org/sga/sga2020/ : Siena Galaxy Astlas (SGA) home page
http://github.com/davidohlson/50MGC : Catalog on author website
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- NSA [870/698590] NASA-Sloan Atlas NSAID number
8- 18 F11.7 deg RAdeg [0/360] NSA right ascension (J2000)
20- 30 F11.7 deg DEdeg [-22/85] NSA declination (J2000)
32- 32 I1 --- f_NSA [1/4] Assigned flag for NSA objects (1)
34- 41 F8.3 --- RSep [0.007/3929]? Ratio of separation from nearest
catalog match and matching galaxy diameter
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Note (1): As described in Section 2.1.1. Flag as follows:
1 = Image shows a bright or star-forming region within a larger galaxy
(144 occurrences)
2 = Image shows no object, an imaging artifact, a star, or a foreground star
over a high-redshift galaxy (719 occurrences)
3 = Duplicates of otherwise good galaxies, of which we flagged the entry
with the most reliable redshift source to keep, in order, SDSS, NED,
and ZCAT (205 occurrences)
4 = Good imaging of a galaxy with a redshift matching the redshift in NED
(208 occurrences).
Only objects in category 4 are considered as possible unique new NSA
galaxies to add to the catalog.
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Byte-by-byte Description of file: tablea1.dat
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Bytes Format Units Label Explanations
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1- 28 A28 --- Name Common galaxy name
31- 37 I7 --- PGC [38/6775370]?=-1 PGC number (from HyperLeda)
40- 45 I6 --- NSA [14/697653]?=-1 NASA-Sloan Atlas NSAID
number
48- 51 I4 --- GroupID [1/3030]?=-1 Galaxy is member of group,
number based on Lambert+ 2020,
J/MNRAS/497/2954 group catalog
53- 63 F11.7 deg RAdeg Right Ascension combined from catalog
sources (J2000)
65- 75 F11.7 deg DEdeg Declination combined from catalog sources
(J2000)
77- 87 F11.7 deg RANSAdeg ? Right Ascension provided by NSA (J2000)
89- 99 F11.7 deg DENSAdeg ? Declination provided by NSA (J2000)
101- 111 F11.7 deg RANEDdeg ? Primary Right Ascension provided by NED
(J2000)
113- 123 F11.7 deg DENEDdeg ? Primary Declination provided by NED
(J2000)
125- 131 F7.3 arcmin Diam25 [0.02/646]? Apparent Diameter from
Karachentsev and HyperLeda
133- 139 F7.2 km/s HRV [-744/3500] Heliocentric Radial Velocity,
see Section 3.1
141- 147 F7.2 km/s Vcmb [-865/3868] Radial velocity with respect to
CMB radiation
149- 151 A3 --- Ref Original source for compiled velocity:
HyperLeda, LVG, NSA
159 I1 --- FlLEDA [0/1] True for objects in HyperLeda
161 I1 --- FlLVG [0/1] True for objects in Karachentsev's
Catalog of Local Volume Galaxies
163 I1 --- FlNSA [0/1] True for objects in NASA-Sloan Atlas
165 I1 --- FlSGA [0/1] True for objects in Siena Galaxy
Atlas
167- 171 A5 --- TType Numerical Hubble T-Type
174- 179 A6 --- CType Color-based Type, see Section 5.1
185- 190 A6 --- BestType Combined galaxy type, see Section 5.1
194- 199 F6.3 mag Ab [0.015/37.7]? B-band extinction from
HyperLeda (1)
201- 205 F5.3 mag Ag [0.01/4.5]? g-band extinction from
NASA-Sloan Atlas (2)
206- 212 F7.4 mag E(B-V) [0.003/85] E(B-V) value from IRSA dust
website (3)
214- 219 F6.3 mag BmagC [0.5/25.3]? Extinction corrected total B
band magnitude from HyperLeda
221- 226 F6.3 mag B-V [-0.7/1.4]? The (B-V) color from HyperLeda
228- 236 E9.3 Lsun BLum [190/2236000000000]? B-band Luminosity
derived for non-HyperLeda sources as
described in Section 2.2
238- 243 F6.3 mag (g-i)C [-3.2/4.7]? Extinction corrected (g-i)
color from NASA-Sloan Atlas
245- 253 E9.3 Lsun iLum [4407/107300000000]? I-Band Luminosity,
calculated using Misun=4.53
255- 260 F6.3 mag (g-r)C [-1.8/2.6]? Extinction corrected (g-r)
color from Siena Galaxy Atlas
262- 270 E9.3 Lsun rLum [653400/135900000000]? r-band Luminosity,
calculated using Mrsun=4.65
272- 277 F6.3 mag (B-R)C [-2.5/3.5]? Extinction corrected (B-R)
color from NED
279- 287 E9.3 Lsun RLum [5515/195500000000]? R-band Luminosity from
NED, calculated using MRsun=4.60
289- 295 F7.3 mag BMag [-25.5/-0.25]? Estimated absolute B-Band
magnitude for all galaxies
297- 302 F6.3 mag g-i [-3.2/4.7]? Estimated g-i color for all
galaxies with color measurements
304 I1 --- Flmag [0/2]? Galaxy with magnitude preference
exceptions, mag_flag as described
in Section 2.3 (4)
306- 311 F6.3 Mpc cf3D [1/56.2]? Distances from CosmicFlows3
Calculator
313- 318 F6.3 Mpc e_cf3D [3.3/10.1]? Uncertainty in cf3D
320- 325 F6.2 Mpc zindD [0.01/149]? Redshift independent distances
327- 331 F5.2 Mpc e_zindD [0/11.4]? Uncertainty in zindD
333- 340 A8 --- f_zindD Redshift independent distance indicator
listed in NED; see Section 3.2
344- 350 F7.3 Mpc bestDist [0.01/149]? Our chosen best distance
estimate
352- 357 F6.3 Mpc e_bestDist [0.001/12]? Error for bestDist
359- 370 A12 --- f_bestDist General method used for best distances:
CF3-Z, Karachentsev, NED-D, Mei, Cantiello,
EVCC, HyperLeda
374- 375 I2 --- r_bestDist [0/4]?=-1 Source/Reference for bestDist,
see Section 3 (5)
377- 378 I2 --- FlDned [0/2]?=-1 Galaxy with NED-D best distance
exceptions, "distneddflag" as described
in Section 3.2 (6)
380- 385 F6.3 [Msun] logMsg-i [2.9/12.9]? Log(Mstar) from (g-i)
387- 392 F6.3 [Msun] logMsg-r [5.27/11.6]? Log(Mstar) from (g-r)
394- 399 F6.3 [Msun] logMsB-V [3.8/11.5]? Log(Mstar) from (B-V)
401- 406 F6.3 [Msun] logMsB-R [3.85/11.6]? Log(Mstar) from (B-R)
408- 413 F6.3 [Msun] logMass [2.9/13]? Compiled best log(M*) estimate
415- 419 F5.3 [Msun] e_logMass [0.13/1.8]? Uncertainty in logMass
421- 423 A3 --- f_logMass Color used for best mass estimate: g-i,
g-r, B-V, B-R
433 I1 --- CXOObs [0/1] True if CSCView crossmatch returned a
limiting sensitivity at matching position
as described in Section 6
435 I1 --- CXODet1 [0/1] True if CSCView crossmatch returned
flux information within a 1" matching
radius as described in Section 6
437- 441 F5.2 [10-7W] logLx1 [0/42.3]? Log 0.5-7 keV X-ray luminosity
from 1" matching radius; erg/s
443 I1 --- CXODet3 [0/1] True if CSCView crossmatch returned
flux information within a 3" matching
radius as described in Section 6
445- 449 F5.2 [10-7W] logLx3 [33/42.5]? Log 0.5-7keV X-ray luminosity
from 3" matching radius; erg/s
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Note (1): multiplied by 0.86 to translate to Schlafly, AV=0.769*aBleda
and AR=0.629*aBleda.
Note (2): the i-band extinction used is =0.550*agnsa.
Note (3): Schlafly values for all galaxies. Used only for the Siena Galaxy
Atlas sources, ag/E(B-V)sga=3.303, ar/E(B-V)_sga=2.285.
Note (4): Flag to which source provided the more accurate measurement at
a given magnitude as follows:
0 = The difference between B and g are within one magnitude, so NSA values
are used for calculating masses (14822 occurrences)
1 = B and g are discrepant; NSA photometry is more reliable
(385 occurrences)
2 = B and g are discrepant; HyperLeda photometry is more reliable, and is
used to estimate masses (217 occurrences)
Note (5): Best distance source flag as follows:
0 = Virgo (Binggeli+ 1985, J/AJ/90/1681 ; Kim+ 2014, J/ApJS/215/22 ;
and Mei+ 2007, J/ApJ/655/144 ; 907 occurrences). See Section 3.3
1 = LVG; the Local Volume Galaxies (Karachentsev+ 2013, J/AJ/145/101 ;
1236 occurrences)
2 = NED-D; the NED distance database (Steer+ 2017AJ....153...37S 2017AJ....153...37S ;
361 occurrences)
3 = redshift based (12865 occurrences)
4 = HyperLeda (see VII/237 ; 29 occurrences)
Note (6): For galaxies with large spreads in their preferred distances, we use
the mean of all preferred distances with the best primary indicator.
Flag as follows:
0 = uses the single best NED-D measurement,
1 = best NED-D distance averaged from multiple measurements,
2 = NED-D best indicator mean used due to discrepancy, as described
in Section 3.2.
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS], 17-Jun-2024