ACDS V10.0 - Detailed Description of IX/35

ACDS V10.0 - Sun Jan 19 14:06:05 CET 2025

| # Detailed Description of IX/35 : Second EUVE Catalogues (Bowyer+, 1996-99) |

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.

    IX/35               Second EUVE Catalogues                 (Bowyer+, 1996-99)
    ================================================================================
    Second EUVE Source Catalog
        Bowyer S., Lampton M., Lewis J., Wu X., Jelinsky P., Malina R.F.
       <Astrophys. J. Suppl. Ser. 102, 129 (1996)>
       =1996ApJS..102..129B
    An all-sky catalog of faint extreme ultraviolet sources
        Lampton M., Lieu R., Schmitt J.H.M.M., Bowyer S., Voges W., Lewis J., Wu X.
       <Astrophys. J., Suppl. Ser., 108, 545 (1997)>
       =1997ApJS..108..545L
    The second extreme ultraviolet explorer right angle program catalog.
        Christian D.J., Craig N., Cahill W., Roberts B., Malina R.F.
       <Astron. J., 117, 2466 (1999)>
       =1999AJ....117.2466C
    ================================================================================
    ADC_Keywords: Surveys ; Ultraviolet; X-ray sources

    Mission_Name: EUVE

    Keywords: catalogs - stars: late-type - ultraviolet emission

    Description:
        The Extreme Ultraviolet Explorer satellite was launched on
        June 7, 1992 from Cape Canaveral, Florida on a Delta II rocket.
        The payload contains three EUV scanning telescopes equipped with
        imaging detectors as well as a Deep Survey Spectrometer instrument
        which divides the light from a fourth telescope between an imaging
        detector and three EUV spectrometers.

        The wavelength range is 10-60nm, corresponding to an energy range of
        20-120eV, in the 4 bands:
          10nm : Lexan/Boron,  58-174Å,  89Åpeak
             DS: Lexan/Boron,  67-178Å,  91Åpeak (Deep Survey)
          20nm : Al/Ti/C,     156-234Å, 171Åpeak
             DS: Al/C,        157-364Å, 171Åpeak (Deep Survey)
          40nm : Ti/Sb/Ti/Al, 368-590Å, 405Åpeak
          60nm : Sn/SiO,      519-742Å, 555Åpeak
        More details about the EUVE performances may be found in the paper by
        Sirk et al. (1997ApJS..110..347S)

        The EUVE Source Catalog published in 1996 paper is made of three
        source tables, plus a list of associations for each table:
        - survey.dat lists the  514 objects detected during the all-sky survey.
        - deepsurv.dat lists the 35 sources detected by the deep survey of
          half the ecliptic plane;  three deep survey objects are also detected
          in the all-sky survey.
        - detect.dat lists 188 sources that have been detected in other ways,
        principally by deep exposures with the scanner telescopes as part of
        the Right Angle Program through 24 December 1994 (later RAP detections
        are reported in the 1999 paper)

        The corresponding association tables are idsurvey, iddeepsu.dat and
        iddetect.dat respectively, in which one EUVE source may by associated
        to 0, one or more counterparts. In nearly all cases the associated
        objects lie within 1arcmin of the actual source position.

        The all-sky catalog of faint EUV sources published in 1997 lists the
        faint sources detected jointly by EUVE and ROSAT WFC.

        The 1999 paper lists the detections made from the observations since
        the first EUVE RAP catalog (1994 January) and covers 17% of the sky.

    File Summary:

           FileName      Lrecl  Records   Explanations

    ×                   80        .   This file
    × ReadMe            80        .   This file
    × survey.dat        72      514   All-sky survey (1996 paper)
    × deepsurv.dat      52       35   Deep Survey of half the ecliptic plane (1996 paper)
    × detect.dat        74      188   Sources detected in other ways (1996 paper)
    × idsurvey.dat      91      551   Identifications of survey.dat (1996 paper)
    × iddeepsu.dat      91       37   Identifications of deepsurv.dat (1996 paper)
    × iddetect.dat      91      213   Identifications of detect.dat (1996 paper)
    × faint.dat         71      534   Joint EUVE-ROSAT Detections (1997 paper)
    × rap.dat          177      293   Right Angle Program (RAP) data (1999 paper)
    × lampton.tex      102      636   LaTeX Version of tables 1-4 of 1997ApJS..108..545L
    × christia.tex     176      874   LaTeX Version of tables 2-4 of 1999AJ....117.2466C

    See also:
      http://archive.stsci.edu/euve/ : EUVE Archive at STScI
      J/ApJS/93/569 : First EUVE source catalogue (Bowyer+, 1994)
      J/AJ/107/751  : EUVE bright sources list (Malina+, 1994)
      J/MNRAS/260/77 : ROSAT Wide Field Camera EUV Bright Sources (Pounds+ 1993)
      J/MNRAS/274/1165 : The 2RE Source Catalogue (Pye+ 1995)
      J/MNRAS/287/293  :  BR photometry of EUVE sources (Maoz+ 1997)
      J/PASP/109/998   :  EUVE optical atlas (Shara+ 1997)

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

       Bytes Format Units   Label   Explanations

       1-  4  A4    ---     ---     [EUVE]
       6- 14  A9    ---     EUVE    Catalog designation based on J2000 position
      16- 17  I2    h       RAh     Best fit Right Ascension J2000 (hours) for
                                     detected EUVE source
      19- 20  I2    min     RAm     Best fit Right Ascension J2000 (minutes)
      22- 23  I2    s       RAs     [0,60] Best fit Right Ascension J2000 (seconds)
          25  A1    ---     DE-     Best fit Declination J2000 (sign) for
                                     detected EUVE source
      26- 27  I2    deg     DEd     Best fit Declination J2000 (degrees)
      29- 32  F4.1  arcmin  DEm     Best fit Declination J2000 (minutes)
      34- 38  I5    ct/ks   c100A   ? 58-174Å Lexan/Boron observed mean countrate
          39  A1    ---    u_c100A  [)] indicates detections < 3 sigma
      40- 42  I3    ct/ks  e_c100A  ? one sigma countrate error
      44- 48  I5    ct/ks   c200A   ? 156-234Å Al/Ti/C observed mean countrate
          49  A1    ---    u_c200A  [)] indicates detections < 3 sigma
      50- 52  I3    ct/ks  e_c200A  ? one sigma countrate error
      54- 58  I5    ct/ks   c400A   ? 368-590Å Ti/Sb/Ti/Al observed mean countrate
          59  A1    ---    u_c400A  [)] indicates detections < 3 sigma
      60- 62  I3    ct/ks  e_c400A  ? one sigma countrate error
      64- 68  I5    ct/ks   c600A   ? 519-742Å Sn/SiO band mean countrate
          69  A1    ---    u_c600A  [)] indicates detections < 3 sigma
      70- 72  I3    ct/ks  e_c600A  ? one sigma countrate error

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

       Bytes Format Units   Label   Explanations

       1-  4  A4    ---     ---     [EUVE]
       6- 14  A9    ---     EUVE    Catalog designation based on J2000 position
      16- 17  I2    h       RAh     Best fit Right Ascension J2000 (hours) for
                                     detected EUVE source
      19- 20  I2    min     RAm     Best fit Right Ascension J2000 (minutes)
      22- 23  I2    s       RAs     Best fit Right Ascension J2000 (seconds)
          25  A1    ---     DE-     Best fit Declination J2000 (sign) for
                                     detected EUVE source
      26- 27  I2    deg     DEd     Best fit Declination J2000 (degrees)
      29- 32  F4.1  arcmin  DEm     Best fit Declination J2000 (minutes)
      34- 38  F5.1  ct/ks   c100DS  ? 67-178Å  Lexan/Boron observed mean countrate
          39  A1    ---   u_c100DS  [)] ')' indicates detections < 3 sigma
      40- 42  F3.1  ct/ks e_c100DS  ? one sigma countrate error
      44- 48  F5.1  ct/ks   c200DS  ?  157-364Å Al/C observed mean countrate
          49  A1    ---   u_c200DS  [)] ')' indicates detections < 3 sigma
      50- 52  F3.1  ct/ks e_c200DS  ? one sigma countrate error

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

       Bytes Format Units   Label   Explanations

       1-  4  A4    ---     ---     [EUVE]
       6- 14  A9    ---     EUVE    Catalog designation based on J2000 position
      16- 17  I2    h       RAh     Best fit Right Ascension J2000 (hours) for
                                      detected EUVE source
      19- 20  I2    min     RAm     Best fit Right Ascension J2000 (minutes)
      22- 23  I2    s       RAs     [0,60] Best fit Right Ascension J2000 (seconds)
          25  A1    ---     DE-     Best fit Declination J2000 (sign) for
                                     detected EUVE source
      26- 27  I2    deg     DEd     Best fit Declination J2000 (degrees)
      29- 32  F4.1  arcmin  DEm     [0,60.0] Best fit Declination J2000 (minutes)
      34- 38  F5.1  ct/ks   c100A   ? 58-174Å Lexan/Boron observed mean countrate
          39  A1    ---    n_c100A  [U] indicates possible UV leak
      41- 45  F5.1  ct/ks   c200A   ? 156-234Å Al/Ti/C observed mean countrate
          46  A1    ---    u_c200A  [U] indicates possible UV leak
      48- 52  F5.1  ct/ks   c400A   ? 368-590Å Ti/Sb/Ti/Al mean countrate
          53  A1    ---    n_c400A  [U] indicates possible UV leak
      55- 59  F5.1  ct/ks   c600A   ? 519-742Å Sn/SiO band mean countrate
                                      mean countrate
          60  A1    ---    n_c600A  [U] indicates possible UV leak
      61- 66  F6.1  ct/ks   c100DS  ? 67-178Å Lexan/Boron observed mean countrate
          67  A1    ---   n_c100DS  [U] indicates possible UV leak
      69- 73  F5.1  ct/ks   c200DS  ? 157-364Å Al/C observed mean countrate
          74  A1    ---   n_c200DS  [U] indicates possible UV leak

    Byte-by-byte Description of file:  id*.dat

       Bytes Format Units   Label     Explanations

       1-  4  A4    ---     ---       [EUVE]
       6- 14  A9    ---     EUVE      Catalog designation based on J2000 position
          16  A1    ---     Q         [12UH] Identification characterisation (1)
      18- 34  A17   ---     Name1     ID name 1
      36- 52  A17   ---     Name2     ID name 2
      54- 64  A11   ---     Type      ID spectral type or description
      66- 70  F5.2  mag     MAG       ? magnitude of ID object
      72- 74  I3    arcsec  Sep       ? angle separating EUVE & ID in arcsec
      76- 91  A16   ---     Comments  Other identifications and notes (2)

    Note (1): the `Q' column indicates our level of confidence in each
        source detection:
        Q=1 denotes likely identification on basis of known EUV emitter from
            previous work or from membership in a class of known EUV emitters.
        Q=2 denotes acceptable positional coincidence but little or no
            other supporting evidence.
        Q=U denotes some of the detected source counts originate from the
            known UV leak of one or more of the EUVE filters
        Q=H means no counterpart has been found, but the detection is
            statistically secure found, the detection is statistically
            secure in the sense of its satisfying the more stringent
            selection criteria.
        Q=  (a blank) indicates that the detection lies in the less stringent
            group, and no other supporting evidence is available.
    Note (2): the following catalogue abbreviations are used:
        1E  =1979ApJ...234L...1G First Einstein survey (Giacconi et al.)
        4U  =1978ApJS...38..357F Fourth Uhuru catalog (Forman et al.)
        AF  =1995ApJ...441..726F High Galactic Latitude Planetary Nebulae
             (Fruscione et al.),
        AF2 = X-Ray Selected EUV Galaxies (Fruscione A. 1995, ApJ, submitted)
        DK  = D. Kilkenny  M. Mathioudakis (1995 private communication)
        HM  =1995ApJ...455..574D All-sky Survey (Marshall et al.)
        JD  =1995ApJ...455..574D Hot White Dwarfs in the LISM (Dupuis et al.)
        JE  =1995ApJ...454..442E Millisecond Pulsar J0437-4715 (Edelstein et al.)
        JF  =1994BAAS...26..870F Middle Aged Pulsar PSR 0656+14 (Finley et al.)
        JL  = Transient/Flaring EUV Sources (Lewis et al. 1995,
              Proc. EUV Colloq. 152, Berkeley CA)
        KM  =1994AJ....108.1843M First Year of EUVE RAP (McDonald et al. 1994)
       LTT  = Luyten 1957, "Catalogue of 9867 stars in the Southern
              Hemisphere with Proper Motion Exceeding 0.2" (Univ. Minnesota)
              Luyten 1961, "Catalogue of 7127 Stars in the Northern
              Hemisphere with Proper Motion Exceeding 0.2" (Univ. Minnesota)
        MM  =1995A&A...300..775M Activity Versus Rotation (Mathioudakis et al.)
        NC  = Optical ID of EUV Sources (Craig et al. 1995, ApJ, submitted)
        NC2 = N. Craig (1995 private communication)
        RE  =1993MNRAS.260...77P Rosat WFC Catalog (Pounds et al.)
        RF  = EUV Emission from Neutron Stars (Foster et al. 1995,
              Proc. EUV Colloq 152, UC Berkeley)
        RG  =1995AJ....110..788G Field of EUVE J1027+323 (Genova et al. 1995)
        RL  = EUV Emission of Active Galactic Nuclei (Lieu et al. 1995,
              Adv. Space Res., 16(3), 81)
        SV  =1995ApJ...448L...9V EUV from Seyfert Ton S180 (Vennes et al.)
        TD1 =1983MNRAS.202..317C TD1 UV survey (Carnochan  Wilson 1983;
              catalog II/59)

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

       Bytes Format Units   Label     Explanations

       1-  4  A4    ---     ---       [EUVE]
       6- 14  A9    ---     EUVE      Catalog designation based on J2000 position
      16- 17  I2    h       RAh       Right ascension (J2000.0)
      19- 20  I2    min     RAm       Right ascension (J2000.0)
      22- 23  I2    s       RAs       [0,60] Right ascension (J2000.0)
          25  A1    ---     DE-       Declination sign (J2000.0)
      26- 27  I2    deg     DEd       Declination (J2000.0)
      29- 30  I2    arcmin  DEm       Declination (J2000.0)
      32- 33  I2    arcsec  DEs       [0,60] Declination (J2000.0)
      35- 40  F6.3  ct/s    CRate     EUVE count rate
      42- 46  F5.2  ct/s    XRT       ROSAT X-Ray Telescope count rate
      48- 51  F4.2  arcmin  Sep       Separation between EUVE and X-ray positions
      53- 67  A15   ---     ID        Plausible optical, X-ray or EUV identification (1)
      69- 71  A3    ---     Status    EUV status (2)

    Note (1): Catalogs cited for ID Names are:
          RE: Pounds et al., 1993, Cat. J/MNRAS/260/77
          1E: Giacconi et al., 1979ApJ...234L...1G
          4U: Forman et al., 1978ApJS...38..357F, Cat. VII/18
         TD1: Carnochan & Wilson, 1983MNRAS.202..317C (see also Cat. II/59)
    Note (2): EUV Status:
           N: newly reported object,
           2: Boywer et al., 1996ApJS..102..129B
           W: ROSAT WFC

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

       Bytes Format Units   Label   Explanations

           1  A1    ---     Tab     [234B] Original table number (6)
       3-  6  A4    ---     ---     [EUVE]
       8- 16  A9    ---     EUVE    Catalog designation based on J2000 position
      18- 19  I2    h       RAh     Right ascension (J2000.0)
      21- 22  I2    min     RAm     Right ascension (J2000.0)
      24- 27  F4.1  s       RAs     Right ascension (J2000.0)
          30  A1    ---     DE-     Declination sign (J2000.0)
      31- 32  I2    deg     DEd     Declination (J2000.0)
      34- 35  I2    arcmin  DEm     Declination (J2000.0)
      37- 40  F4.1  arcsec  DEs     Declination (J2000.0)
      42- 44  I3    ks      Texp    Effective exposure time
          46  A1    ---    l_c100A  Limit flag on c100A
                                      (90% confidence upper limit)
      47- 50  I4    ct/ks   c100A   ? 58-174Å count rate in Lexan/Boron band
      52- 55  F4.1  ct/ks  e_c100A  ? rms uncertainty on c100A
          57  A1    ---    l_c200A  Limit flag on c200A
      58- 62  I5    ct/ks   c200A   ? 156-234Å count rate in the Al/Ti/C band
      64- 66  I3    ct/ks  e_c200A  ? rms uncertainty on c200A
          68  A1    ---     q_ID1   [12HU] Quality flag (1)
      70- 92  A23   ---     ID1     Identification name
          93  A1    ---     n_ID1   [fg] Individual note (2)
      95-117  A23   ---     ID2     Identification name
     119-126  A8    ---     SpType  Spectral type  (3)
     128-132  F5.2  mag     Vmag    ? V magnitude (3)
         133  A1    ---     ---     [/]
     134-137  F4.1  mag     Vmag2   ? V magnitude of the secondary for binaries (3)
     139-141  I3    arcsec  Sep     ? Angular separation between the EUVE position
                                       and the identified source's position
         142  A1    ---     n_Sep   [g] Note on Sep (4)
     144-177  A34   ---     Com     Comments (5)

    Note (1): Quality flag:
        1: likely identification with supporting evidence as a previously
            identified EUV source
        2: although the detection is statistically significant, there was
            no other supporting evidence
        H: no identification was found
        U: the source has a strong ultraviolet continuum, the reported
            emission is outside the EUV bandpass, and is often referred to as
            "ultraviolet leak" (McDonald et al., 1994AJ....108.1843M;
            Vedder et al., 1993, Proc. SPIE, 1742, 486)
    Note (2): Individual notes:
        f: Bowyer et al., 1996ApJS..102..129B, list this source as a "NOID".
        g: NED shows galaxy NGP9 F270-038303 168" away.
    Note (3): Data from SIMBAD, NED and the literature where available

    Note (4):  g: Although angular separation is large, it is not unreasonable for
                  An out-of-bandpass detection (see text).
    Note (5): References and abbreviations used:
        C98: Christian et al. 1998AJ....115..316C
        B97: Burleigh et al. 1997MNRAS.287..381B
        D80: Dressler 1980ApJS...42..565D, Cat. VII/174
        E93: Eggen 1993AJ....106.1885E
        F98: Fleming 1998ApJ...504..461F
        H98: Halpern et al. 1998PASP..110.1394H
        J95: Jefferies et al. 1995MNRAS.276..397J
        J98: Jensen et al. 1998AJ....116..414J
        K84: Kilkenny 1984MNRAS.211..969K
      SPB96: Smith et al., 1996, Cat. J/ApJS/104/287
       WT91: Wroblewski & Torres 1991, Cat. <J/A&AS/91/129>
       WT96: Wroblewski & Torres, 1996, Cat. <J/A&AS/115/481>
         FB: filter bar
         OA: off axis
         PH: pinhole
         DS: Detection from Deep Survey (see text)
    Note (6): the list was originally split in 4 tables:
          2 = scanner data
          3 = long wavelength scanner data
          4 = deep survey data
          B = B stars data (table A1)

    Acknowledgements:
        Damian J. Christian, STScI
        Nahide Craig, Berkeley Univ.
    ================================================================================
    (End)                    Francois Ochsenbein, Patricia Bauer [CDS]   05-Jan-2001