J/AJ/127/2002 Star Formation Rate of NFGS galaxies (Kewley+, 2004)
[O II] as a star formation rate indicator.
Kewley L.J., Geller M.J., Jansen R.A.
<Astron. J., 127, 2002-2030 (2004)>
=2004AJ....127.2002K 2004AJ....127.2002K
ADC_Keywords: Galaxies, spectra ; Abundances
Keywords: galaxies: abundances - galaxies: fundamental parameters -
galaxies: high-redshift - galaxies: starburst
Abstract:
We investigate the [O II] emission line as a star formation rate (SFR)
indicator using integrated spectra of 97 galaxies from the Nearby
Field Galaxies Survey (NFGS). The sample includes all Hubble types and
contains SFRs ranging from 0.01 to 100M☉/yr.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 106 97 The NFGS sample with [O II], [O III], [N II],
Hα and Hβ fluxes
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See also:
J/ApJS/126/271 : Surface photometry of nearby field galaxies (Jansen+ 2000)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- NFGS NFGS number
5- 16 A12 --- Name Galaxy name
18- 22 I5 km/s cz Heliocentric redshift
24- 25 A2 --- l_E(B-V) [≤ ] Limit flag on E(B-V)
26- 29 F4.2 mag E(B-V) Observed redenning (1)
31- 34 F4.2 mag E(B-V)E Estimated redenning (2)
36- 39 F4.2 --- KD02 log(O/H)+12 from Kewley & Dopita,
2002ApJS..142...35K 2002ApJS..142...35K (KD02)
40 A1 --- --- [-]
41- 43 F3.1 --- KD02b ? Upper limit of KD02 log(O/H)+12
when interval
45- 48 F4.2 --- Z94 ? log(O/H)+12 from Zaristsky et al.,
1994ApJ...420...87Z 1994ApJ...420...87Z
50- 53 F4.2 --- M91 ? log(O/H)+12 from McGaugh,
1991ApJ...380..140M 1991ApJ...380..140M
55- 58 F4.2 --- C01 ? log(O/H)+12 from Charlot & Longetti,
2001MNRAS.323..887C 2001MNRAS.323..887C
60- 63 F4.2 [solLum] logL(Ha) Hα luminosity (3)
65- 68 F4.2 [solLum] logL([OII]) ? [O II] luminosity (4)
70- 76 F7.3 solMass/yr SFRHa Hα star formation rate from
Kennicutt, 1998ARA&A..36..189K 1998ARA&A..36..189K
78- 83 F6.3 solMass/yr SFR[OII]1 ? [O II] star formation rate from
Kennicutt, 1998ARA&A..36..189K 1998ARA&A..36..189K
85- 90 F6.3 solMass/yr SFR[OII]2 ? [O II] star formation rate from
eq. (4), see note (5)
92- 98 F7.3 solMass/yr SFR[OII]3 ? [O II] star formation rate from
eq. (15), see note (6)
100-106 F7.4 solMass/yr SFR[OII]4 ? [O II] star formation rate from
eqs. (18),(10), see note (7)
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Note (1): Observed redenning calculated using the Balmer Decrement as
described in Sect. 2. E(B-V) includes Galactic extinction, which is
∼0.015 on average for the NFGS.
Note (2): Redenning calculated using the uncorrected (observed) [O II]
luminosity from eqs. (16) and (18), described in Sect. 6.
Note (3): The Hα luminosity is corrected for underlying stellar
absorption and for reddening using the E(B-V) derived from the
Balmer decrement.
Note (4): The [O II] luminosity is corrected for reddening using the E(B-V)
derived from the Balmer decrement.
Note (5): SFR([O II]) is derived using eq. (4) and L([O II]) corrected for
reddening using the E(B-V) derived from the Balmer decrement.
Eq. (4): SFR([OII]=(6.58±1.65)*10-42L([OII])
Note (6): SFR([O II]) is derived using eq. (15) with the Zaristsky et al.
(1994ApJ...420...87Z 1994ApJ...420...87Z) abundance. R23 and L([O II]) have been
corrected for reddening using the E(B-V) derived from the Balmer
decrement.
Eq. (15): SFR([OII],Z)t=
7.9*10-42L([OII])/(-1857.24+612.693x-67.0264x2+2.43209x3)
Note (7): SFR([O II]) is derived using the intrinsic luminosity estimated
from the observed luminosity (eq. (18)). Eq. (10) was used to derive the
SFR([O II]).
Eq. (10): SFR([OII],Z)=
7.9*10-42L([OII])/[(-1.75±0.25)[log(O/H)+12]+(16.73±2.23)]
Eq. (18): L([OI])i=3.11*10-20L([OII])01.495
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History:
From electronic version of the journal
(End) James Marcout, Patricia Vannier [CDS] 02-Jul-2004