J/ApJ/664/226 Nuker law parameters of early-type galaxies (Lauer+, 2007)
The centers of early-type galaxies with Hubble space telescope.
VI. Bimodal central surface brightness profiles.
Lauer T.R., Gebhardt K., Faber S.M., Richstone D., Tremaine S.,
Kormendy J., Aller M.C., Bender R., Dressler A., Filippenko A.V., Green R.,
Ho L.C.
<Astrophys. J., 664, 226-256 (2007)>
=2007ApJ...664..226L 2007ApJ...664..226L
ADC_Keywords: Galaxies, photometry ; Morphology
Keywords: galaxies: nuclei - galaxies: photometry - galaxies: structure
Abstract:
We combine several HST investigations on the central structure of
early-type galaxies to generate a large sample of surface photometry.
The studies selected were those that used the "Nuker law" to
characterize the inner light distributions of the galaxies. The sample
comprises WFPC1 and WFPC2 V-band observations published earlier by our
group, R-band WFPC2 photometry of Rest et al. (2001AJ....121.2431R 2001AJ....121.2431R),
NICMOS H-band photometry by Ravindranath et al. (2001AJ....122..653R 2001AJ....122..653R)
and Quillen et al. (2000ApJS..128...85Q 2000ApJS..128...85Q), and the brightest cluster
galaxy WFPC2 I-band photometry of Laine et al. (2003, Cat.
J/AJ/125/478).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 57 219 Global parameters
table2.dat 73 219 Central structural parameters
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See also:
J/AJ/129/2138 : Centers of early-type galaxies with HST (Lauer+, 2005)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- Name Galaxy name
15- 17 A3 --- Morph The RC3 (VII/155) or Postman & Lauer (1995,
Cat. J/ApJ/440/28) BCG morphology
classification
19- 23 F5.1 Mpc Dist Distance
25 I1 --- r_Dist Reference in Dist (1)
27- 32 F6.2 mag VMag Absolute V band magnitude (2)
34- 37 F4.2 [pc] logR ? Log of the effective radius
39 I1 --- r1 Source of global parameters (G1)
41- 57 A17 --- Note Additional notes (4)
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Note (1): Distance reference as follows:
1 = Tonry et al. (2001ApJ...546..681T 2001ApJ...546..681T) SBF distances adjusted to
H0=70km/s/Mpc
2 = distance from Faber et al. (1997AJ....114.1771F 1997AJ....114.1771F) scaled to
H0=70km/s/Mpc
3 = Faber et al. (1989, Cat. VII/176) group distance
4 = distance based on CMB velocity of galaxy or group.
Note (2): Galaxy absolute luminosities are based on RC3 VT values, or the
Laine et al. (2003, Cat. J/AJ/125/478) R magnitudes for the BGC;
Schlegel et al. (1998ApJ...500..525S 1998ApJ...500..525S) extinction corrections have been
applied.
Note (4): ΔM values in the notes column refer to the luminosity
corrections applied to subtract the disks in S0 galaxies;
reference codes in the parentheses correspond to:
(1) = Baggett et al. (1998, Cat. J/AJ/116/1626)
(2) = Kent (1985ApJS...59..115K 1985ApJS...59..115K)
(3) = Kormendy & Illingworth (1983ApJ...265..632K 1983ApJ...265..632K)
(4) = Simien & de Vaucouleurs (1986ApJ...302..564S 1986ApJ...302..564S)
(5) = Boroson (1981ApJS...46..177B 1981ApJS...46..177B)
(6) = Burstein (1979ApJ...234..435B 1979ApJ...234..435B)
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- Name Galaxy name
15 I1 --- r2 Source of central structural parameters (G1)
17 A1 --- P [PIC] Profile type (4)
19- 24 F6.1 pc rb Nuker law break radius parameter (5)
26- 30 F5.2 arcsec theta Nuker law break radius (angular units) (5)
32- 36 F5.2 --- Ib Nuker law break surface brightness param. (5)
38- 42 F5.2 --- alpha Nuker law α parameter (5)
44- 47 F4.2 --- beta Nuker law β parameter (5)
49- 53 F5.2 --- gamma Nuker law slope (5)
55- 59 F5.2 --- gamma' Nuker law slope at resolution limit (5)
61- 73 A13 --- Notes Additional notes (3)
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Note (4): Profile type as follows:
P = power-law
I = intermediate form
C = core
Note (3): The Notes column gives previous profile classifications and their
source if different from the present classification.
Note (5): in equation (2) of paper:
γ' = -d/log(I)/d.log(r)
I(r) ∝ Ib.(rb/r)γ[1+(r/rb)α](γ-β/α
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Global notes:
Note (G1): References as follows:
1 = Lauer et al. (2005, Cat. J/AJ/129/2138)
2 = Rest et al. (2001AJ....121.2431R 2001AJ....121.2431R)
3 = Laine et al. (2003, Cat. J/AJ/125/478)
4 = Lauer et al. (1995AJ....110.2622L 1995AJ....110.2622L)
5 = Quillen et al. (2000ApJS..128...85Q 2000ApJS..128...85Q)
6 = Ravindranath et al. (2001AJ....122..653R 2001AJ....122..653R)
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History:
From electronic version of the journal
References:
Lauer et al., Paper I 1995AJ....110.2622L 1995AJ....110.2622L
Byun et al., Paper II 1996AJ....111.1889B 1996AJ....111.1889B
Gebhardt et al., Paper III 1996AJ....112..105G 1996AJ....112..105G
Faber et al., Paper IV 1997AJ....114.1771F 1997AJ....114.1771F
Lauer et al., Paper V 2005AJ....129.2138L 2005AJ....129.2138L, Cat. J/AJ/129/2138
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 19-Aug-2009