J/ApJ/874/66 MASSIVE survey. XII. Early-type galaxy gradients (Greene+, 2019)
The MASSIVE survey.
XII. Connecting stellar populations of early-type galaxies to kinematics and
environment.
Greene J.E., Veale M., Ma C.-P., Thomas J., Quenneville M.E.,
Blakeslee J.P., Walsh J.L., Goulding A., Ito J.
<Astrophys. J., 874, 66 (2019)>
=2019ApJ...874...66G 2019ApJ...874...66G
ADC_Keywords: Galaxies, spectra; Optical; Abundances; Velocity dispersion
Keywords: galaxies: elliptical and lenticular, cD ; galaxies: evolution ;
galaxies: formation ; galaxies: kinematics and dynamics ;
galaxies: stellar content
Abstract:
We measure the stellar populations as a function of the radius for 90
early-type galaxies (ETGs) in the MASSIVE survey, a volume-limited
integral-field spectroscopic (IFS) galaxy survey targeting all
northern-sky ETGs with an absolute K-band magnitude of MK<-25.3mag
or a stellar mass of M*≳4x1011M☉, within 108Mpc. We are
able to measure reliable stellar population parameters for individual
galaxies out to 10-20kpc (1-3Re) depending on the galaxy. Focusing
on ∼Re (∼10kpc), we find significant correlations between the
abundance ratios, σ, and M* at a large radius, but we also
find that the abundance ratios saturate in the highest-mass bin. We
see a strong correlation between the kurtosis of the line-of-sight
velocity distribution (h4) and the stellar population parameters
beyond Re. Galaxies with higher radial anisotropy appear to be
older, with metal-poorer stars and enhanced [α/Fe]. We suggest
that the higher radial anisotropy may derive from more accretion of
small satellites. Finally, we see some evidence for correlations
between environmental metrics (measured locally and on >5Mpc scales)
and the stellar populations, as expected if satellites are quenched
earlier in denser environments.
Description:
MASSIVE is a volume-limited survey of 116 galaxies (see details in
Ma+, 2014, J/ApJ/795/158 and Veale+ 2017, J/MNRAS/471/1428) in the
northern hemisphere within D<108Mpc (i.e., to the distance of the Coma
cluster).
We have completed integral-field spectroscopic (IFS) observations for
90 galaxies, including complete coverage of the 75 galaxies that have
MK<-25.5mag. We use the Mitchell IFS at the McDonald Observatory,
which has a 107x107arcsec2 field of view. The spectra span
3650-5850Å, with a spectral resolution of 4.5Å FWHM.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 104 90 Galaxy gradients
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See also:
VII/237 : HYPERLEDA. I. Catalog of galaxies (Paturel+, 2003)
VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)
II/294 : The SDSS Photometric Catalog, Release 7 (Adelman-McCarthy+, 2009)
VII/259 : 6dF galaxy survey final redshift release (Jones+, 2009)
J/ApJS/116/1 : Old Stellar Populations. VI. Absorption-Line (Trager+ 1998)
J/A+A/361/1023 : Evolution models for α-enhanced stars (Salasnich+ 2000)
J/A+A/407/423 : Coma cluster early-type galaxies. III. (Mehlert+, 2003)
J/ApJ/621/673 : Line indices for 124 early-type galaxies (Thomas+, 2005)
J/A+A/463/455 : Early-type galaxies with ionized gas. III. (Annibali+, 2007)
J/ApJ/655/790 : Groups of galaxies in 2MASS survey (Crook+, 2007)
J/ApJS/171/146 : Population synthesis in the blue. IV (Schiavon+, 2007)
J/MNRAS/391/1009 : Radial kinematics in bright cluster gal. (Loubser+ 2008)
J/ApJS/182/216 : Surface photometry of Virgo ellipticals (Kormendy+, 2009)
J/ApJS/192/5 : Emission-line gal. from HETDEX pilot survey (Adams+, 2011)
J/MNRAS/416/2840 : The 2M++ galaxy redshift catalogue (Lavaux+, 2011)
J/ApJS/199/26 : The 2MASS Redshift Survey (2MRS) (Huchra+, 2012)
J/ApJ/795/158 : The MASSIVE survey : 116 candidate galaxies (Ma+, 2014)
J/MNRAS/448/3484 : ATLAS3D Project. XXX (McDermid+, 2015)
J/ApJ/836/115 : Double-component model fitting of elliptical gal. (Oh+, 2017)
J/MNRAS/471/1428 : MASSIVE Survey. VII. (Veale+, 2017)
J/A+A/620/A111 : Confirmed PN in M87 outer regions (Longobardi+, 2018)
J/ApJ/859/38 : HST grism obs. of CARLA galaxy cluster cand. (Noirot+, 2018)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 8 A8 --- Name Galaxy identifier
10- 13 F4.1 [Msun] logM* [11.6/12.2] Log of stellar mass
15- 17 I3 km/s sigma [164/341] Average stellar velocity
dispersion
19- 22 F4.1 kpc Re [3.9/19.2]? Effective (half-light) radius
24- 28 F5.2 [-] DelSig23 [-3.4/-1.6]? Gradient in surface
brightness (1)
30- 33 F4.2 [-] e_DelSig23 [0.01/0.6]? Uncertainty in DelSig23
35- 41 F7.4 [-] [Fe/H]c [-0.4/0.2]? [Fe/H] measured within 2kpc
43- 46 F4.2 [-] e_[Fe/H]c [0.02/0.2]? Uncertainty in [Fe/H]c
48- 54 F7.4 [-] [Fe/H]o [-0.6/0.2]? [Fe/H] value measured at 0.9Re
56- 59 F4.2 [-] e_[Fe/H]o [0.02/0.1]? Uncertainty in [Fe/H]o
61- 66 F6.3 [kpc-1] Del[Fe/H] [-1.4/0.4]? Gradient in [Fe/H] (2)
68- 71 F4.2 [kpc-1] e_Del[Fe/H] [0.04/1]? Uncertainty in Del[Fe/H]
73- 76 F4.2 [-] [a/Fe]c [0.06/0.6]? [α/Fe] value within 2kpc
78- 81 F4.2 [-] e_[a/Fe]c [0.01/0.1]? Uncertainty in [a/Fe]c
83- 86 F4.2 [-] [a/Fe]o [0.03/0.5]? [α/Fe] value at 0.9Re
88- 91 F4.2 [-] e_[a/Fe]o [0.02/0.1]? Uncertainty in [a/Fe]o
93- 99 F7.4 [kpc-1] Del[a/Fe] [-0.5/0.4]? Gradient in [a/H] (2)
101-104 F4.2 [kpc-1] e_Del[a/Fe] [0.03/0.6]? Uncertainty in Del[a/Fe]
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Note (1): Per decade in radius measured from 2-3Re.
Note (2): Per decade in radius.
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History:
From electronic version of the journal
References:
Ma et al. Paper I. 2014ApJ...795..158M 2014ApJ...795..158M Cat. J/ApJ/795/158
Greene et al. Paper II. 2015ApJ...807...11G 2015ApJ...807...11G
Davis et al. Paper III. 2016MNRAS.455..214D 2016MNRAS.455..214D
Goulding et al. Paper IV. 2016ApJ...826..167G 2016ApJ...826..167G
Veale et al. Paper V. 2017MNRAS.464..356V 2017MNRAS.464..356V
Pandya et al. Paper VI. 2017ApJ...837...40P 2017ApJ...837...40P Cat. J/ApJ/837/40
Veale et al. Paper VII. 2017MNRAS.471.1428V 2017MNRAS.471.1428V Cat. J/MNRAS/471/1428
Veale et al. Paper VIII. 2018MNRAS.473.5446V 2018MNRAS.473.5446V
Goullaud et al. Paper IX. 2018ApJ...856...11G 2018ApJ...856...11G
Ene et al. Paper X. 2018MNRAS.479.2810E 2018MNRAS.479.2810E
Davis et al. Paper XI. 2019MNRAS.486.1404D 2019MNRAS.486.1404D
Greene et al. Paper XII. 2019ApJ...874...66G 2019ApJ...874...66G This catalog
Ene et al. Paper XIII. 2019ApJ...878...57E 2019ApJ...878...57E
Ene et al. Paper XIV. 2020ApJ...891...65E 2020ApJ...891...65E
Liepold et al. Paper XV. 2020ApJ...891....4L 2020ApJ...891....4L
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 27-Aug-2020