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J/PASP/117/227     Properties of 101 galaxies from the NFGS      (Kewley+, 2005)

Aperture effects on star formation rate, metallicity, and reddening. Kewley L.J., Jansen R.A., Geller M.J. <Publ. Astron. Soc. Pac., 117, 227-244 (2005)> =2005PASP..117..227K
ADC_Keywords: Galaxies, nearby ; Abundances ; Radial velocities ; Extinction Abstract: We use 101 galaxies selected from the Nearby Field Galaxy Survey to investigate the effect of aperture size on the star formation rate, metallicity, and reddening determinations for galaxies. Our sample includes galaxies of all Hubble types except ellipticals with global star formation rates (SFRs) ranging from 0.01 to 100M/yr, metallicities in the range 7.9≲log(O/H)+12≲9.0, and reddening of 0≲A(V)≲3.3. We compare the SFR, metallicity, and reddening derived from nuclear spectra to those derived from integrated spectra. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 35 198 Classification and quality flags for the NFGS table2.dat 93 101 Properties of the 101 galaxies selected from the NFGS
See also: J/AJ/127/2002 : Star Formation Rate of NFGS galaxies (Kewley+, 2004) J/ApJS/132/37 : Spectroscopy of Southern warm IR galaxies (Kewley+, 2001) J/ApJS/126/271 : Surface photometry of nearby field galaxies (Jansen+ 2000) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 3 I3 --- NFGS NFGS name 5- 16 A12 --- OName Other name 18- 21 A4 --- IntClass Integrated class (1) 23 I1 --- q_IntClass ? Quality flag on IntClass (2) 25- 28 A4 --- NClass Nuclear class (1) 30 I1 --- q_NClass ? Quality flag on NClass (2) 32- 35 A4 --- AdClass Adopted class (1)
Note (1): Classes H II, AMB and AGN are defined according to the Kewley et al. (2001, Cat. J/ApJS/132/37) theoretical classification scheme. AGN = Galaxies that lie above the theoretical "extreme starburst line" in the standard optical diagnostic diagrams AMB = Galaxies that lie in the AGN region in one diagram but in the HII region section of the other diagram are classed as "ambiguous" galaxies. H II = Galaxies that lie below the line are classed as HII region-like Sy1 = Seyfert 1 galaxies Note (2): Quality flags Q are defined as follows: 1 = Object classified using [N II]/Hα, [S II]/Hα, and [O III]/Hβ; 2 = Object classified using [N II]/Hα and [O III]/HHβ only; 3 = Object classified using [N II]/Hα only.
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 3 I3 --- NFGS NFGS name 5- 16 A12 --- OName Other name 18- 19 I2 --- MType ? Numeric morphological code (1) 21- 25 I5 km/s cz Radial velocity 27- 32 F6.2 mag BMAG Absolute B magnitude 34- 38 F5.2 mag/arcsec2 mu0B B band central surface brightness 40- 44 F5.3 --- Inuc/IB26 Nuclear spectral aperture 46- 50 F5.3 --- Iint/IB26 Integrated spectral aperture 52- 56 F5.3 --- zeta Relative nuclear/integrated B26 covering fraction 58- 61 F4.2 --- [O/H]nuc Nuclear metallicity, in log(O/H) units 63- 66 F4.2 --- [O/H]int Integrated metallicity, in log(O/H) units 68 A1 --- l_AVnuc [<] Upper limit flag on AVnuc 69- 72 F4.2 mag AVnuc Nuclear extinction 74 A1 --- l_AVint [<] Upper limit flag on AVint 75- 78 F4.2 mag AVint Integrated extinction 80- 85 F6.4 solMass/yr SFRnuc Nuclear star formation rate 87- 93 F7.3 solMass/yr SFRint Integrated star formation rate
Note (1): Numeric morphological code, defined as follows: -3 = L-, S0- -2 = L, S0 0 = S0/a, S0-a 1 = Sa 2 = Sab 3 = Sb 4 = Sbc 5 = Sc 6 = Scd 7 = Sd 8 = Sdm 9 = Sm, Magellanic Spiral 10 = Im, Irr I, Magellanic Irregular, Dwarf Irregular
History: From electronic version of the journal
(End) Marianne Brouty [CDS] 26-Apr-2006
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

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