parameter
|
unit
|
description
|
name
|
|
ECO galaxy identifier
|
RAdeg
|
deg
|
Right Ascension in decimal degrees
|
DEdeg
|
deg
|
Declination in decimal degrees
|
cz
|
km/s
|
Local group corrected velocity of galaxy
|
absrMag
|
mag
|
Absolute SDSS r-band magnitude (foreground extinction included)
|
logMstar
|
log(Msun)
|
Log stellar mass as calculated in Eckert+16
|
logMbary
|
log(Msun)
|
Log baryonic mass (stars + cold gas, where cold gas is defined as 1.4 times the HI mass) as calculated in Eckert+16
|
PGFFlag
|
|
Flag indicating which color is used to compute the Photometric Gas Fraction distribution for each galaxy in Eckert+16: 1=modelu_J, 2=modelu_K, 3=modelu_r, 4=modelg_r
|
HItype_E16
|
|
Flag indicating what type of HI distribution was used to compute logMbary in Eckert+16: 1=HI detection, 2=PGF, 3=PGF cutoff by upper limit.
|
logMgas_JF21
|
log(Msun)
|
Log cold gas mass (where cold gas is defined as 1.4 times the HI mass) as calculated in Florez+21. *Note Mgas_JF21+Mstar does not equal Mbary. Florez+21 used a slightly different algorithm than Eckert+16 to decide whether or not to use the PGF vs HI measurement. Additionally, an error was discovered in the limit measurements used in Eckert+16, albeit the error did not affect any results within the uncertainties and the limits per se were not published. That error was fixed for Florez+21.*
|
HItype_JF21
|
log(Msun)
|
Flag indicating whether the gas mass in Florez+21 was computed from the HI measurement or the PGF distribution: 1=HI detection, 2=PGF.
|
modelu_rcorr
|
mag
|
SED modeled (u-r) color including correction for internal extinction (foreground corrections and k-corrections implicity included, as described in Eckert+16 and used in Florez+21)
|
modelu_j
|
mag
|
SED modeled (u-J) color (foreground corrections and k-corrections implicity included, as described in Eckert+16)
|
modelu_k
|
mag
|
SED modeled (u-K) color (foreground corrections and k-corrections implicity included, as described in Eckert+16)
|
modelu_r
|
mag
|
SED modeled (u-r) color (foreground corrections and k-corrections implicity included, as described in Eckert+16)
|
modelg_r
|
mag
|
SED modeled (g-r) color (foreground corrections and k-corrections implicity included, as described in Eckert+16)
|
R50
|
arcsec
|
The half-light radius in r band (as calculated in Eckert+16)
|
R90
|
arcsec
|
The 90%-light radius in r band (as calculated in Eckert+16)
|
b_a
|
|
axial ratio of galaxy as calculated in Eckert+2016
|
mu_delta
|
log(Msun/kpc^2)
|
stellar surface mass density with R50 minus stellar surface mass density between R50 and R90 (see Kannappan+2013 for details) that serves as proxy for galaxy morphology. Values as calculated in Eckert+2016
|
MorphEL
|
|
string "E" = early type, "L" = late type (as originally calculated in Moffett+15, if galaxy was not part of the Moffett+15 sample the value was calculated using the quantitative cut provided by Moffett+15)
|
FMorphEL
|
|
Morphology Source Flag, 1 = quantitative cut from Moffett et al. (2015), 2=by eye from Lintott et al. (2011)
|
Den1Mpc
|
|
normalized environmental density smoothed at 1Mpc scale (value is -999 if galaxy was not part of Moffett+2015 sample)
|
FM15
|
|
1/0 flag for for membership in the ECO sample used Moffett+2015; for data used in that paper see ECO DR1
|
Grp_e16
|
|
Group identifier for galaxy groups in Eckert+2016
|
Grpra_e16
|
deg
|
Right Ascension of group center, for galaxy groups in Eckert+2016
|
Grpdec_e16
|
deg
|
Declination of group center, for galaxy groups in Eckert+2016
|
Grpcz_e16
|
km/s
|
Velocity of group center, adopted galaxy velocity for survey membership for galaxy groups in Eckert+2016
|
GrpN_e16
|
|
Number of galaxies in group for galaxy groups in Eckert+2016
|
FC_e16
|
|
1/0 flag for central=1 or satellite=0 for galaxy groups in Eckert+16
|
logMh_e16
|
log(Msun)
|
Log group halo mass for galaxy groups in Eckert+16
|
CCr
|
|
Completeness correction factor due to redshift incompleteness (from Eckert+2016)
|
CCb
|
|
Completeness correction factor accounting for boundary effects (from Eckert+2016)
|
Fe16
|
|
1/0 flag indicating whether galaxy was considered in sample for Eckert+16
|
Grp_e17
|
|
Group identifier for galaxy groups in Eckert+2017. Eckert+2017 included an algorithm to break up false pairs. eckert+17 groups with N>2 are identical to Eckert+16 groups.
|
Grpra_e17
|
deg
|
Right Ascension of group center, for galaxy groups in Eckert+2017
|
Grpdec_e17
|
deg
|
Declination of group center, for galaxy groups in Eckert+2017
|
Grpcz_e17
|
km/s
|
Velocity of group center, adopted galaxy velocity for survey membership for galaxy groups in Eckert+2017
|
GrpN_e17
|
|
Number of galaxies in group for galaxy groups in Eckert+2017
|
FC_e17
|
|
1/0 flag for central=1 or satellite=0 for galaxy groups in Eckert+17 *Note: This flag was incorrect in the original published catalog but has been corrected in this database and in an erratum with an updated catalog.*
|
grpms_e17
|
log(Msun)
|
Log group-integrated stellar mass for galaxy groups in Eckert+17
|
grpmb_e17
|
log(Msun)
|
Log group-integrated baryonic mass (stars + cold gas, where cold gas is defined as 1.4 HI mass) for galaxy groups in Eckert+17
|
logMh_e17
|
log(Msun)
|
Log group halo mass for galaxy groups in Eckert+17
|
logMh_s_e17
|
log(Msun)
|
Log group halo mass assigning mass based on group-integrated stellarmass for galaxy groups in Eckert+17
|
logMh_dyn_e17
|
log(Msun)
|
Log group halo mass using dynamics, computed for N>2 groups in Eckert+ 2017
|
logMh_dyn_stack_e17
|
log(Msun)
|
Log group halo mass using dynamics with stacking to improve statistics for low-N groups, computed for N>2 groups in Eckert+ 2017
|
logMh_dyn_smooth_e17
|
log(Msun)
|
Log group halo mass using dynamics, transitioning smoothly from stacked estimates to direct measurements as described in Eckert+ 2017
|
Grpsig_e17
|
km/s
|
group velocity dispersion measured using Gapper method for N>2 groups in Eckert+17
|
Grprproj_e17
|
|
projected radius from group center for N>2 groups in Eckert+2017
|
FE17
|
|
1/0 flag indicating whether galaxy was considered in sample for Eckert+17
|