Access to Astronomical Catalogues

← Click to display the menu
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
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), NICMOS H-band photometry by Ravindranath et al. (2001AJ....122..653R) and Quillen et al. (2000ApJS..128...85Q), and the brightest cluster galaxy WFPC2 I-band photometry of Laine et al. (2003, Cat. J/AJ/125/478). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 57 219 Global parameters table2.dat 73 219 Central structural parameters
See also: J/AJ/129/2138 : Centers of early-type galaxies with HST (Lauer+, 2005) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
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)
Note (1): Distance reference as follows: 1 = Tonry et al. (2001ApJ...546..681T) SBF distances adjusted to H0=70km/s/Mpc 2 = distance from Faber et al. (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) 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) (3) = Kormendy & Illingworth (1983ApJ...265..632K) (4) = Simien & de Vaucouleurs (1986ApJ...302..564S) (5) = Boroson (1981ApJS...46..177B) (6) = Burstein (1979ApJ...234..435B)
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
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 alpha parameter (5) 44- 47 F4.2 --- beta Nuker law beta 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)
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
Global notes: Note (G1): References as follows: 1 = Lauer et al. (2005, Cat. J/AJ/129/2138) 2 = Rest et al. (2001AJ....121.2431R) 3 = Laine et al. (2003, Cat. J/AJ/125/478) 4 = Lauer et al. (1995AJ....110.2622L) 5 = Quillen et al. (2000ApJS..128...85Q) 6 = Ravindranath et al. (2001AJ....122..653R)
History: From electronic version of the journal References: Lauer et al., Paper I 1995AJ....110.2622L Byun et al., Paper II 1996AJ....111.1889B Gebhardt et al., Paper III 1996AJ....112..105G Faber et al., Paper IV 1997AJ....114.1771F Lauer et al., Paper V 2005AJ....129.2138L, Cat. J/AJ/129/2138
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 19-Aug-2009
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

catalogue service

© UDS/CNRS

Contact