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_{sun}; H0=75km/s/Mpc and q0=0). One hundred eight of
    the 118 1Jy ULIGs have been observed at {Delta}{lambda}=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{sun}.

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{sun})
  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]{lambda} 5007/H{beta} 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 H{alpha}
                                         (10-14ergs/s/cm2)
  25- 26  A2    ---       u_FHa       [: ] Uncertainty flag on FHa (6)
  28- 30  I3    0.1nm     EWHa        ? Equivalent widths of the H{alpha}
                                            emission line (1)
  31- 32  A2    ---       u_EWHa      [: ] Uncertainty flag on EWHa (6)
  34- 38  F5.2  [solLum]  log(LHa)    ? Logarithm of the dereddened H{alpha}
                                            luminosity (2)
      39  A1    ---       u_log(LHa)  Uncertainty flag on log(LHa)
  41- 44  F4.2  ---       FHb         ? H{beta}4861 flux relative to
                                         H{alpha} (3)
      45  A1    ---       u_FHb       Uncertainty flag on FHb
  47- 50  F4.2  ---       F[OIII]     ? Flux of [O III]5007 relative to
                                         H{alpha}
      51  A1    ---       u_F[OIII]   Uncertainty flag on F[OIII]
  53- 56  F4.2  ---       F[OI]       ? Flux of [O I] 6300 relative to
                                         H{alpha}
      57  A1    ---       u_F[OI]     Uncertainty flag on F[OI]
  59- 62  F4.2  ---       F[NII]      ? Flux of [N II] 6583 relative to
                                         H{alpha}
      63  A1    ---       u_F[NII]    Uncertainty flag on F[NII]
  65- 68  F4.2  ---       F[SII]6716  ? Flux of [S II] 6716 relative to
                                         H{alpha}
      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 H{alpha}
      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 H{alpha}

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 H{alpha}. In Seyfert 1 galaxies (see Table 5), the H{alpha}
    flux, equivalent width, and luminosity refer to the sum of the narrow
    and broad components of H{alpha}.

    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 H{alpha} 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