ACDS V10.0 - Detailed Description of J/ApJS/111/163

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| # Detailed Description of J/ApJS/111/163 : Einstein X-ray survey of galaxies. I. (Burstein+ 1997) |

Note : this is the description file of the original catalog. This HTML page corresponds well to the original description, but some minor changes in the format may have been introduced in the FITS output files in order to allow for arithmetic operations on quantities such as coordinates and times. h:m:s and d:m:s units are normally converted into degrees, and YYYY-MM-DD into julian days.
Similarly, some slight changes may have been introduced in the units; the value given in the HTML files supersedes the value indicated in the ReadMe file for this catalogue.

    J/ApJS/111/163           Einstein X-ray survey of galaxies. I.  (Burstein+ 1997)
    ================================================================================
    An Einstein X-ray survey of optically selected galaxies. I. Data
         Burstein D., Jones C., Forman W., Marston A.P., Marzke R.O.
        <Astrophys. J. Suppl. Ser. 111, 163 (1997)>
        =1997ApJS..111..163B
    ================================================================================
    ADC_Keywords: Galaxies, optical ; X-ray sources ; Magnitudes

    Mission_Name: Einstein

    Keywords: catalogs - galaxies: distances and redshifts - surveys -
              X-rays: galaxies

    Abstract:
        We present the results of a complete Einstein imaging proportional
        counter X-ray survey of optically-selected galaxies from the
        Shapley-Ames Catalog (Cat. VII/112), the Uppsala General Catalog
        (Cat. VII/26) and the European Southern Observatory Catalog (Cat.
        VII/115). Well-defined optical criteria are used to select the
        galaxies, and X-ray fluxes are measured at the optically-defined
        positions. The result is a comprehensive list of X-ray detection and
        upper limit measurements for 1018 galaxies. Of these, 827 have either
        independent distance estimates or radial velocities. Associated
        optical, redshift, and distance data have been assembled for these
        galaxies, and their distances come from a combination of directly
        predicted distances and those predicted from the Faber-Burstein Great
        Attractor/Virgocentric infall model. The accuracy of the X-ray fluxes
        has been checked in three different ways; all are consistent with the
        derived X-ray fluxes being of <=0.1 dex accuracy. In particular, there
        is agreement with previously published X-ray fluxes for galaxies in
        common with a 1991 study by Roberts et al. (1991ApJS...75..751R) and a
        1992 study by Fabbiano et al. (1992ApJS...80..531F).The data presented
        here will be used in further studies to characterize the X-ray output
        of galaxies of various morphological types and thus to enable the
        determination of the major sources contributing to the X-ray emission
        from galaxies.

    Description:
        The Einstein X-Ray Survey data consist of 3 separate kinds of files
        for each of our three data subsets:
        Tables 5-7: These tables give the basic observed data for the galaxies
        for which the authors were able to obtain X-ray data, both detections
        and upper limits. Included are both observed X-ray data and correlated
        optical data.
        Tables 9-11: These tables list the galaxies that were included in the
        search of the IPC images, but for which X-ray fluxes were not
        measured. A code explains why no measurement was made.
        Tables 12-14: These tables list the distance-dependent parameters,
        including predicted distance, method of predicted distance, X-ray
        luminosities or upper limits, absolute B optical diameters and
        absolute B magnitudes.

    File Summary:

           FileName      Lrecl  Records   Explanations

    ×                   80        .   This file
    × ReadMe            80        .   This file
    × table5.dat        89      313   Properties of Shapley-Ames galaxies with X-ray
                                   observations
    × table6.dat        89      393   Properties of UGC galaxies with X-ray observations
    × table7.dat        90      312   Properties of ESO galaxies with X-ray observations
    × table9.dat        19       91   Shapley-Ames galaxies without X-ray observations
    × table10.dat       19      277   UGC galaxies without X-ray observations
    × table11.dat       19      373   ESO galaxies without X-ray observations
    × table12.dat       51      313   Derived properties of X-ray observed Shapley-Ames
                                   galaxies
    × table13.dat       51      329   Derived properties of X-ray observed UGC galaxies
    × table14.dat       51      180   Derived properties of X-ray observed ESO galaxies

    See also:
          IX/13 : The 2E Catalogue (Harris+ 1994)
          IX/15 :  Einstein EMSS Survey (Gioia+ 1990, Stocke+ 1991)
          IX/18 : EINSTEIN extended source survey (EXSS) (Oppenheimer+ 1997)
        VII/112 : RC2 Catalogue (de Vaucouleurs+ 1976)
        VII/26  : Uppsala General Catalogue of Galaxies (UGC) (Nilson 1973)
        VII/115 : The surface photometry catalogue of the ESO-Uppsala galaxies

    Byte-by-byte Description of file:  table5.dat

       Bytes Format Units      Label    Explanations

       1-  9  A9    ---        Name    *Name given in the RC2 (Cat. <VII/112>)
      11- 15  F5.2  mag        BT      *B mag as given in the RC2
      19- 22  F4.2 [0.1arcmin] logD    *log of diameter in B band
      25- 26  I2    ---        MType   *Morphological type code, RC2
      28- 32  I5    ---       IPCfield *IPC Field Number (-1 if more than one)
      35- 39  I5    s          ExpTime *Total exposure time for IPC field(s)
      42- 43  I2    h          RAh      Right Ascension (1950), RC2
      45- 49  F5.2  min        RAm      Right Ascension (1950), RC2
          51  A1    ---        DE-      Declination sign
      52- 53  I2    deg        DEd      Declination (1950), RC2
      55- 58  F4.1  arcmin     DEm      Declination (1950), RC2
      60- 66  F7.2  ct/ks      CTXray  *X-ray count-rate
      70- 74  F5.2  ct/ks     e_CTXray *X-ray count-rate, 1-sigma error
      76- 80  F5.3  ---        Corr    *Correction factor to X-ray ct rate
      82- 86  F5.3  ---       Vignette *Vignetting correction to X-ray count rate
          89  I1    ---        ApCode  *Code for X-ray aperture size

    Note on Name:
      Name for Shapley-Ames Galaxy given in RC2 (de Vaucouleurs et al.,
       1976, Cat. VII/112
    Note on BT:
      Either BT (if given) or otherwise mB as given in computer version of RC2.
    Note on logD:
      log of RC2 observed B mag diameter, log D_25, as observed,
    Note on MType:
      RC2 numerical code for galaxy morphological type, with the Burstein revision
       that I0 = -7 (not 0 as in RC2).
    Note on IPCfield:
      IPC Field Number on which X-ray flux was measured. If more than one IPC field
       was measured, a -1 is entered here, and the fields used are given in Table 8
       of the paper.
    Note on ExpTime:
      Total exposure time for IPC images, summed over all observed fields.
    Note on CTXray:
      X-ray count rate and error, in units of 1000 times observed count rate,
      only deadtime-corrected and background-corrected.
    Note on e_CTXray:
      Error in X-ray count rate, taking into account all sources of random error.
    Note on Corr:
      Multiplicative correction factor for HI column density and source energy 8
       distribution, to transform vignetting-corrected and dead-time corrected
       source counts to X-ray flux in units of 10^{-11} ergs/cm2/s.
    Note on Vignette:
      Vignetting correction, to be divided into observed count rate.
    Note on ApCode:
      Numerical code for the largest aperture used to obtain the X-ray count rate.
      1 = 200" aperture, 2 = 232" aperture, 3 = 264" aperture and 4 = 296" aperture.

    Byte-by-byte Description of file:  table6.dat

       Bytes Format  Units     Label     Explanations

       1-  9  A9     ---       Name      UGC (Cat. VII/26) number of galaxy
      11- 15  F5.2   mag       Bmag     *B mag as given in the UGC (Cat. <VII/26>)
      19- 22  F4.2 [0.1arcmin] logD     *log B diameter, UGC (Cat. <VII/26>)
      25- 26  I2     ---       MType    *Burstein morphological type code, UGC
      28- 32  I5     ---       IPCfield  IPC Field Number (-1 if more than one)
      35- 39  I5     s         ExpTime   Total exposure time for IPC field(s)
      42- 43  I2     h         RAh      *Right Ascension 1950
      45- 49  F5.2   min       RAm      *Right Ascension 1950
          51  A1     ---       DE-      *Declination sign
      52- 53  I2     deg       DEd      *Declination 1950
      55- 58  F4.1   arcmin    DEm      *Declination 1950
      60- 66  F7.2   ct/ks     CTXray    X-ray count-rate
      70- 74  F5.2   ct/ks     e_CTXray  X-ray count-rate, 1-sigma error
      76- 80  F5.3   ---       Corr      Correction factor to X-ray ct rate
      82- 86  F5.3   ---       Vignette  Vignetting correction to X-ray ct rate
          89  I1     ---       ApCode    Code for X-ray aperture size

    Note on Bmag:
      If Bmag<=15.7, comes from Zwicky (1961-1968, Cat. VII/49) via Huchra
      (1976AJ.....81..952H) corrections. Otherwise it is just a rough estimate
      (accuracy 0.5-1.0 mag) by Nilson (1973, Cat. VII/26).
    Note on logD:
      log of UGC Bmag diameter
    Note on MType:
      Burstein developed a hierarchical numerical typing system for Morphological
      types. The abbreviated system for the UGC and ESO catalogs is as follows:
        Burstein Code Number   Classification
                     1          E and E/S0
                    10          All S0
                    11          All S0/a
                    12          All Sa
                    13          All Sa/b
                    14          All Sb
                    15          All Sb/Sc
                    16          All Sc
                    17          All Sc/Sd
                    18          All Sd
                    19          All Sd/Irr
                    20          All Irr
                    30          All non-divided classified types
                    40          Dwarf galaxies
                    50          Compact galaxies and N galaxies
                    60          Multiple systems
                    70          Peculiar galaxies
                    90          No galaxy class given
    Note on RAh, RAm, DE-, DEd, DEm:
        Right Ascension and Declination are as determined either by Dressel & Condon
        (1976ApJS...31..187D) or by our own measurements. Accuracy of ±8" in
        positions.

    Byte-by-byte Description of file:  table7.dat

       Bytes Format  Units      Label     Explanations

       1-  9  A9     ---        Name      ESO (Cat. VII/115) name for galaxy
      12- 16  F5.2   mag        Bmag     *?=0.00 B mag, ESO-LV catalog
      20- 24  F5.2  [0.1arcmin] logD     *?=-1.10 log of diameter in B band, ESO-LV
      27- 28  I2     ---        MType    *Burstein morphological type code, ESO-LV
      30- 34  I5     ---        IPCfiled  IPC Field Number (-1 if more than one)
      36- 40  I5     s          ExpTime   Total exposure time for IPC field(s)
      43- 44  I2     h          RAh       Right Ascension (1950), ESO-LV
      46- 50  F5.2   min        RAm       Right Ascension (1950), ESO-LV
          52  A1     ---        DE-       Declination sign
      53- 54  I2     deg        DEd       Declination (1950), ESO-LV
      56- 59  F4.1   arcmin     DEm       Declination (1950), ESO-LV
      61- 67  F7.2   ct/ks      CRXray    X-ray count-rate
      71- 75  F5.2   ct/ks      e_CRXray  X-ray count-rate, 1-sigma error
      77- 81  F5.3   ---        Corr      Correction factor to X-ray ct rate
      83- 87  F5.3   ---        Vignette  Vignetting correction to X-ray ct rate
          90  I1     ---        Ap_code   Code for X-ray aperture size

    Note on Bmag:
      B mag as given in the ESO-LV catalog (Lauberts & Valentijn, 1989,
      Cat. VII/115). 0.00 if no mag given.
    Note on logD:
      log of ESO-LV B mag diameter at 25th mag isophote; -1.10 if no diameter given.
    Note on MType:
      See the note for MType in table6.dat.

    Byte-by-byte Description of file:  table9.dat  table10.dat  table11.dat

       Bytes Format  Units    Label     Explanations

       1-  9  A9     ---      Name     *Name (RC2, UGC or ESO)
      12- 16  F5.2   mag      BT       *B mag as given in the RC2, UGC or ESO-LV
          19  I1     ---      exCode   *Reason for omission from survey

    Note on Name:
      In table9.dat : Name for Shapley-Ames Galaxy given in RC2 (de Vaucouleurs
                      et al. 1976, Cat. VII/112)
      In table10.dat: UGC (Cat. VII/26) number of galaxy
      In table11.dat: ESO (Cat. VII/115) name for galaxy
    Note on BT:
      In table9.dat : Either B_T (if given) or otherwise Bmag as given in computer
                       version of RC2 (Cat. VII/112)
      In table10.dat: Bmag as given in UGC ((Cat. VII/26).
                       If B_T<=15.7, comes from Zwicky (1961-1968, Cat. VII/49);
                       otherwise just a rough estimate (accuracy 0.5-1.0 mag).
      In table11.dat: B mag as given in the ESO-LV catalog (Lauberts & Valentijn
                       1989, Cat. VII/115). 0.00 if no mag given.
    Note on exCode:
             Reason for omitting galaxy from X-ray survey:
               0 = image not available in processed form;
               2 = on IPC 'ribs';
               3 = on or off edge of IPC field;
               4 = in obvious diffuse emission;
               7 = too large for this survey
               9 = only HRI image available.

    Byte-by-byte Description of file:  table12.dat  table13.dat  table14.dat

       Bytes Format  Units    Label     Explanations

       1-  9  A9     ---      Name     *Name given in the RC2, UGC or ESO-LV
      11- 15  I5     km/s     HRV      *Heliocentric radial velocity
      17- 22  F6.2   Mpc      Dist     *Distance
      25- 26  I2     ---      r_Dist   *Source of distance
      28- 33  F6.2   mag      BMag     *?=0.00 Absolute blue magnitude
      36- 40  F5.2   [kpc]    logDabs  *?=0.00 log of metric diameter
          42  A1     ---    l_logLXray *Symbol if detected or upper limit
      43- 47  F5.2   [10-7W]  logLXray *log of Absolute X-ray luminosity/upp-limit
          51  I1     ---      SyCode   *? Code if Seyfert galaxy

    Note on Name:
       In table12.dat: Name for Shapley-Ames galaxy as given in the
                        RC2 (Cat. VII/112).
       In table13.dat: UGC (Cat. VII/26) number of galaxy
       In table14.dat: ESO (Cat. VII/115) name for galaxy
    Note on HRV:
      The heliocentric velocity, from sources as cited in the paper, including:
      RC2 (Cat. VII/112), RC3 (Cat. VII/155), NASA Extragalactic Database (NED)
    Note on Dist:
      Distance based on the source of distance (r_Dist), assuming H0=75km/s/Mpc.
    Note on r_Dist:
       A numerical code for the source of distance estimate. All independent
       distance measurements come from
       Willick et al. (1996ApJ...457..460W and ADC-distributed data base);
       see references therein for details of individual data sets.
       The abbreviations correspond to the notation of Willick et al.
         1 = Faber et al. (1989, Cat. VII/176)
         2 = Tormen & Burstein reanalysis of Aaronson et al. (1982, Cat. < VII/75>)
              H-0.05 magnitudes (A82);
         3 = Han, Mould et al. Northern survey data (e.g.,
               Han & Mould, 1992ApJ...396..453H; HM);
         4 = Han, Mould et al. Southern survey data (e.g.,
               Han & Mould, 1992ApJ...396..453H; HM);
         5 = Courteau and Faber data (CF; Courteau, 1992, Ph.D. Thesis);
         6 = Mathewson, Ford & Buchhorn (1992ApJS...81..413M; MAT);
         7,8 = Willick (Willick et al., 1996ApJS..109..333W);
         9 = from Faber-Burstein Great Attractor velocity field model for an
              associated cluster or a Local Group galaxy;
        10 = from Faber-Burstein Great Attractor velocity field model for this
              galaxy;
        90 = from Mark II data set (Burstein, 1989, Mark II Catalog of Galaxies
               Peculiar Velocities, email distribution);
        99 = from Willick et al. (1996ApJS..109..333W) but observed 2 or more times.
    Note on BMag:
      In table12.dat: Absolute Blue mag, corrected for Galactic extinction from
             Burstein & Heiles (1984ApJS...54...33B and from the BH reddening maps)
             and redshift/K-corr via RC2 principles. For spiral and irregular
             galaxies, also corrected for inclination via the general RC3 relation:
             {delta}B_T=-1.5log(a/b), where a/b is the observed axial ratio.
      In table13.dat: 0.00 if no magnitude given
      In table14.dat: 0.00 if no magnitude given
      observed axial ratio.
    Note on logDabs:
      In table12.dat: Absolute B mag diameter, 25th mag isophote, in kpc.
            Corrected for Galactic extinction only; no inclination correction made.
      In table14.dat: 0.00 if no distance given
    Note on l_logLXray:
      Upper limit symbol. '<' if upper limit; >2.5{sigma} detection if blank.
    Note on logLXray:
      log of absolute X-ray luminosity, fully-corrected as described in the paper.
    Note on SyCode:
              A code for the type of Seyfert galaxy:
                  blank = not a Seyfert
                  1 = Seyfert 1
                  2 = Seyfert 2
                  3 = Seyfert ?
                  Seyfert classifications taken from NED.

    Origin: AAS CD-ROM series, Volume 9, 1997,          Lee Brotzman [ADS] 17-Jun-97

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    (End)                                                         [CDS]  06-Feb-1998