J/ApJ/522/113 1Jy IRAS galaxies optical spectroscopy (Veilleux+, 1999)
Optical spectroscopy of the IRAS 1Jy sample of ultraluminous infrared galaxies. Veilleux S., Kim D.-C., Sanders D.B. <Astrophys. J. 522, 113 (1999)> =1999ApJ...522..113V
ADC_Keywords: Galaxies, IR ; Spectroscopy ; Equivalent widths Keywords: galaxies: Seyfert - galaxies: starburst - galaxies: stellar content - infrared: galaxies - surveys Abstract: This paper discusses the optical spectroscopic properties of the IRAS 1Jy sample (f60>1Jy) of ultraluminous infrared galaxies (ULIGs: LIR>1012L_☉; H0=75km/s/Mpc and q0=0). One hundred eight of the 118 1Jy ULIGs have been observed at Δλ=8.3Å resolution over the wavelength range ∼4500-8900Å. These data are combined with large, previously published sets of optical spectroscopic data of lower luminosity infrared galaxies to look for systematic trends with infrared luminosity over the luminosity range LIR∼1010.5-1013L☉. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 50 118 Spectroscopic 1Jy survey table3.dat 84 118 Emission-line fluxes, luminosities, and electron densities
See also: VIII/5 : Bright Extragalactic Radio Sources (1Jy) (Kuehr+, 1981) VII/185 : IRAS 1.2Jy IRAS Redshift Survey (Strauss+ 1990,92,95) Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 11 A11 --- Name Target name (1) 13- 17 F5.3 --- z Optical redshift from Kim & Sanders (1998ApJS..119...41K) 19- 23 F5.2 [solLum] log(LIR) Infrared luminosity (log(LIR/L☉) 25- 26 A2 --- Class Classification from spectral type (2) 28- 34 A7 --- r_Class Reference for Class (3) 38 A1 --- Note [ab] Individual Note (4)
Note (1): FSC is the prefix given to the name of all sources in the IRAS Faint Source Catalog (see Moshir et al., 1992, Cat. II/156) The prefix "Z" is used for objects that are not in the FSC - these objects are contained in the Faint Source Reject File (see Moshir et al., 1992, Cat. II/156) Note (2): the classifications are: H: H II galaxy L: LINER S2: Seyfert 2 S1: Seyfert 1 Note (3): The references are: 1: This work 2: Veron-Cetty & Veron, 1989, See Cat. VII/207 3: Veilleux et al., 1995ApJS...98..171V 4: Kim et al., 1998ApJ...508..627K 5: Low et al., 1988ApJ...327L..41L 6: Allen et al., 1991MNRAS.248..528A Note (4): Individual Notes: a: This object was classified as a LINER by Veilleux et al., 1995ApJS...98..171V. The reclassification of this object is due to a slight change in the [OIII]λ 5007/Hβ ratio, which may be attributable to differences in the extraction apertures between the two sets of data. b: This object was classified as a Seyfert 2 by Veilleux et al., 1995ApJS...98..171V. The present classification is considered more reliable because the data are of better quality and are less affected by centering errors.
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 11 A11 --- Name Target name 12- 16 A5 --- m_Name Multiplicity index on Name (N, S, E, W, NW, SE, main) 17 A1 --- n_Name [+] +: nonphotometric data 19- 24 F6.2 10-17W/m2 FHa ? Absolute flux of Hα (10-14ergs/s/cm2) 25- 26 A2 --- u_FHa [: ] Uncertainty flag on FHa (6) 28- 30 I3 0.1nm EWHa ? Equivalent widths of the Halpha emission line (1) 31- 32 A2 --- u_EWHa [: ] Uncertainty flag on EWHa (6) 34- 38 F5.2 [solLum] log(LHa) ? Logarithm of the dereddened Halpha luminosity (2) 39 A1 --- u_log(LHa) Uncertainty flag on log(LHa) 41- 44 F4.2 --- FHb ? Hbeta4861 flux relative to Hα (3) 45 A1 --- u_FHb Uncertainty flag on FHb 47- 50 F4.2 --- F[OIII] ? Flux of [O III]5007 relative to Hα 51 A1 --- u_F[OIII] Uncertainty flag on F[OIII] 53- 56 F4.2 --- F[OI] ? Flux of [O I] 6300 relative to Hα 57 A1 --- u_F[OI] Uncertainty flag on F[OI] 59- 62 F4.2 --- F[NII] ? Flux of [N II] 6583 relative to Hα 63 A1 --- u_F[NII] Uncertainty flag on F[NII] 65- 68 F4.2 --- F[SII]6716 ? Flux of [S II] 6716 relative to Hα 69 A1 --- u_F[SII]6716 Uncertainty flag on F[SII]6716 70 A1 --- n_F[SII]6716 [s] s: [SII]6716+[SII]6731 flux in F[SII]6716 (4) 72- 75 F4.2 --- F[SII]6731 ? Flux of [S II] 6731 relative to Hα 76 A1 --- u_F[SII]6731 Uncertainty flag on F[SII]6731 78 A1 --- l_Ne Limit flag in Ne 79- 82 I4 cm-3 Ne ? Electron density (5) 83 A1 --- u_Ne Uncertainty flag on Ne
Note (1): Emission line derived in the rest frames of the objects Note (2): In units of the bolometric solar luminosity (3.83x1033erg/s) Note (3): This is the weighted average of the values obtained from the standard plotting package of IRAF (SPLOT) and the fitting procedures, with weights estimated from the relative uncertainties in the two types of measurements Note (4): s: sum of [SII]6716 and [S II] 6731 relative to Hα Note (5): Determined from the values of [S II]6716/[S II]6731 and the five-level atom calculations of De Robertis et al., 1987JRASC..81..195D Note (6): The emission-line fluxes are normalized to the observed flux of narrow Hα. In Seyfert 1 galaxies (see Table 5), the Hα flux, equivalent width, and luminosity refer to the sum of the narrow and broad components of Hα. The uncertainty on the relative flux ratios is typically of 5%-10%, and colons indicate values with relative uncertainties of 20%-30%. Double colons indicate values with relative uncertainties larger than 30%, and these objects were not considered in the analysis because of the large uncertainties in the data. The typical uncertainty on the absolute Hα fluxes is 25%-50%.
History: From ApJ electronic version * 22-Oct-2002: in table2.dat, Z03521+002 modified in Z03521+0028, 13335-2621 modified in 13335-2612
(End) James Marcout, Patricia Bauer [CDS] 04-Oct-1999
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