ACDS V10.0 - Detailed Description of J/A+AS/102/451

ACDS V10.0 - Sun Jan 19 02:53:06 CET 2025

| # Detailed Description of J/A+AS/102/451 : Emission-line stars and PNe in the SMC (Meyssonnier+ 1993) |

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/A+AS/102/451    Emission-line stars and PNe in the SMC    (Meyssonnier+ 1993)
    ================================================================================
    A new catalogue of H-{alpha} emission-line stars and small nebulae in the
    Small Magellanic Cloud
         Meyssonnier N., Azzopardi M.
        <Astron. Astrophys. Suppl. Ser. 102, 451 (1993)>
        =1993A&AS..102..451M
    ================================================================================
    ADC_Keywords: Magellanic Clouds ; Stars, emission ; Planetary nebulae

    Keywords: galaxies: Magellanic Clouds - stars: emission-line - H II regions -
              planetary nebulae : general - surveys - catalogs

    Description:
        An objective-prism survey of the Small Magellanic Cloud (SMC) has been
        performed through an H-{alpha} + [NII] interference filter, using the
        90cm Curtis Schmidt telescope of Cerro Tololo. 1898 emission-line
        objects have been detected in the main body of this galaxy, almost
        quadrupling the number of those found in the same region by the
        previous objective-prism surveys. Among these objects are newly
        discovered planetary nebulae, compact HII regions and late-type stars.
        Continuum intensity, as well as the shape and relative strength of the
        H-{alpha} emission-line have been estimated; coordinates,
        cross-identifications for the listed objects are provided.
        The original paper contains in addition finding charts.

    File Summary:

           FileName      Lrecl  Records   Explanations

    ×                   80        .   This file
    × ReadMe            80        .   This file
    × table2.dat        80     1898   H-{alpha} emission-line stars and small nebulae in SMC
    × notes.dat        100      134   Notes to table2
    × table2x.dat       94     1898  *Additional notes and positions from B. Skiff

    Note on table2x.dat: this file was prepared by B. Skiff (Lowell Observatory)
       on 2012-12-12,

    Byte-by-byte Description of file:  table2.dat

       Bytes Format  Units  Label    Explanations

           1  A1     ---    n_MA     [*] indicates that a note in file "notes"
       2-  5  I4     ---    MA       [1/1898]+ MA catalogue running number (5)
       6-  7  A2     ---    u_MA     [ :] Uncertain H{alpha} emission (6)
       8-  9  A2     ---    So       [ sS] origin of spectroscopic data (1)
      10- 11  I2     h      RAh      Right Ascension J2000 (hours)
      13- 14  I2     min    RAm      Right Ascension J2000 (minutes)
      16- 19  F4.1   s      RAs      Right Ascension J2000 (seconds)
          22  A1     ---    DE-      Declination J2000 (sign)
      23- 24  I2     deg    DEd      Declination J2000 (degrees)
      26- 27  I2     arcmin DEm      Declination J2000 (minutes)
      29- 30  I2     arcsec DEs      Declination J2000 (seconds)
      33- 36  F4.1   ---    Ha       [0/5] Rough estimate of H{alpha} intensity (7)
      39- 43  A5     ---    Sp       Three digits describing the spectrum (2)
      45- 47  A3     ---    Obj      Nature or possible nature (:) of the objects (3)
      49- 80  A32    ---    Ident    Cross-identifications and Cluster. (4)

    Note (1): other spectroscopic observations are marked:
     * 's' subsequent medium resolution spectroscopic observations by us
     * 'S' previous spectroscopic observations have been reported from:
       [1981MNRAS.194..613A] Aller, Keyes, Ross & O'Mara B.J.
       [1977A&AS...30..261A] Ardeberg & Maurice
       [1979A&A....75..120A] Azzopardi & Breysacher
       [1981A&A....95..191A] Azzopardi, Breysacher & Muratorio
       [1987MNRAS.227..161B] Barlow
       [1989ApJ...339..244M] Boroson & Liebert
       [1960MNRAS.121..337F] Feast, Thackeray & Wesselink
       [1990A&A...234..233H] Heydari-Malayeri
       [ever published?]     Heydari-Malayeri & Leisy 1993, in preparation
       [1991ApJS...75..407M] Meatheringham & Dopita
       [1991ApJS...76.1085M] Meatheringham & Dopita
       [1988MNRAS.234..583M] Monk, Barlow & Clegg
       [1990ApJS...74...93R] Russell & Dopita
       [1976MNRAS.174..513W] Webster
       [1991A&AS...91..425W] Westerlund, Azzopardi, Breysacher & Rebeirot
       [1993A&AS..102..401V] Winckel van, Duerbeck & Schwarz
       [1986A&A...163..119Z] Zickgraf, Wolf, Stahl, Leitherer & Appenzeller
       [1989A&A...220..206Z] Zickgraf, Wolf, Stahl & Humphreys
    Note (2): The three digits describe the spectrum as it appears
       on our deepest objective-prism plate:
       (a) = relative intensity of the continuum quoted from 1 (faint) to 5
           (overexposed), "2-3" pointing out an optimum exposure; the
           additional symbol "T" denotes that a trace of continuum is
           barely visible above the sky background on our plate, while
           intensity "0" indicates that the related object does not show
           any continuous spectrum underlying the emission-lines,
       (b) = relative strength of the H{alpha} emission-line estimated on
           a scale from 1 to 5, in which 1 represents a very weak line and 5 a
           very strong line,
       (c) = estimate of the H{alpha} emission-line feature, where "1"
           denotes a sharp line, "2" a line appreciably widened and "3"
           a line which is diffuse to very diffuse.
    Note (3): Code for the nature of the objects as follows:
       1 = H II region or filaments
       2 = supernova remnant
       3 = bubble or loop
       4 = compact or small HII region
       5 = PN or PN candidate (:)
       6 = VLE or VLE candidate (:)
       7 = Wolf-Rayet star
       8 = Peculiar H{alpha} emission-line stars with FeII and [FeII] emission
    Note (4): The first word (followed by one or more blanks) contains
        cross-identifications separated by commas, in chronological order,
        given by a letter abbreviation followed by the number assigned by
        the respective authors who identified the object. Cluster information
        on the star location in connection with the SMC cluster system; a
        given star may lie either within a cluster or in its nearby
        surrounding field but that, of course, does not imply cluster
        membership.
      Abbreviations used in cross-identifications and Cluster designation:
        AB   = [1979A&A....75..120A] Azzopardi & Breysacher
        ARP  = [1959AJ.....64..254A] Arp
        AV   = [1982A&AS...50..291A] Azzopardi & Vigneau
        B    = [1976ORROE...1....1B] Bruck (Occas. Rep. R. Obs. Edinburgh No 1)
        DEM  = [1976MmRAS..81...89D] Davies, Elliot & Meaburn
        H    = [1986PASP...98.1113H] Hodge
        HW   = [1974AJ.....79..858H] Hodge & Wright
        J    = [1980ApJS...42....1J] Jacoby
        K    = [1956PASP...68..125K] Kron
        L    = [1961AJ.....66..169L] Lindsay; see note (*)
        Ln   = [1958MNRAS.118..172L] Lindsay
        MG   = [1985MNRAS.213..491M] Morgan & Good
        Mn   = [1992MNRAS.258..639M] Morgan
        Mo   = [1984MNRAS.209..241M] Morgan
        N    = [1956ApJS....2..315H] Henize
        NGC  = [see cat.VII/1]     Dreyer 1888 (Mem.RAS XLIX)
        PMMR = [1983A&AS...53..255P] Prevot, Martin, Maurice, Rebeirot & Rousseau
        R    = [1960MNRAS.121..337F] Feast, Thackeray & Wesselink
        RAW  = [1993A&AS...97..603R] Rebeirot, Azzopardi & Westerlund
        S    = [1956ApJS....2..315H] Henize (emission-line stars)
        Sa   = [1968AJ.....73..246S] Sanduleak
        Sk   = [1989AJ.....98..825S] Sanduleak
        SMP  = [1978PASP...90..621S] Sanduleak, McConnel & Philip
        SP   = [1981PASP...93..431S] Sanduleak & Pesch
        (*) Note that Lindsay (1961) did not provide finding charts for several
        emission objects listed in his catalogue, thus their identification is
        possible only with the help of their coordinates. When Lindsay's
        coordinates for an object do not match ours adequately, the Lindsay
        cross-identification "L" number is followed by a colon.
      Letter abbreviation for author who previously found the object:
         B = Bruck 1976 (1976ORROE...1....1B)
         H = Hodge 1986 (1986PASP...98.1113H)
        HW = Hodge & Wright 1974 (1974AJ.....79..858H)
         K = Kron 1956 (1956PASP...68..125K)
        Ln = Lindsay 1958 (1961AJ.....66..169L)
       NGC = Dreyer 1888 (cat. VII/1)
    Note (5): The acronym [MA93] is also found in the literature.
        The stars are numbered according to increasing right ascension.
    Note (6): the colons following the number indicates that the H{alpha}
        emission-line nature of the object is doubtful or very doubtful,
        mainly due to its severe faintness or because it is a late-type star.
    Note (7): the relative intensity of the H{alpha} line is obtained
        from the measurement of the optical density (0 - 5) of the
        emission-line-peak on the digitized image of our 4-hour
        exposure objective-prism plate.

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

       Bytes Format Units   Label     Explanations

       1-  4  I4    ---     MA        [1/1898]+= MA catalogue number
           5  A1    ---     Cont      Increasing symbol indicating continuation
       7-100  A94   ---     Text      Text of note; bibcodes are used for references

    Byte-by-byte Description of file:  table2x.dat

       Bytes Format Units   Label     Explanations

       1-  4  I4    ---     MA        [1/1898]+ MA catalogue running number
       6-  7  I2    h       RA2h      Right Ascension J2000 (hours)
       9- 10  I2    min     RA2m      Right Ascension J2000 (minutes)
      12- 16  F5.2  s       RA2s      Right Ascension J2000 (seconds)
          18  A1    ---     DE2-      Declination J2000 (sign)
      19- 20  I2    deg     DE2d      Declination J2000 (degrees)
      22- 23  I2    arcmin  DE2m      Declination J2000 (minutes)
      25- 28  F4.1  arcsec  DE2s      Declination J2000 (seconds)
          30  A1    ---     s         [MUDisg-] Source of position (8)
      32- 35  F4.1  ---     mag       ? Magnitude (B or V) from various sources
          37  A1    ---     n_mag     [BV] Magnitude band (Blue or Visual)
      40- 43  A4    ---     spec      Spectrum
      48- 94  A47   ---     Notes     Notes and remarks from B. Skiff

    Note (8): The source of position is:
          M = 2MASS (Cat. II/246) or 2MASS6x (Cat. II/281)
          U = UCAC2 (Cat. I/289)
          D = DENIS (Cat. B/denis)
          i = IRSF (Cat. II/288)
          g = GSC-2.3 (Cat. I/305)
          s = estimate, by B. Skiff, for diffuse objects

    History:
      * 20-Sep-1996: Original version, kindly supplied by Marc Azzopardi
      * 12-Dec-2012: added "table2x.dat", prepared by B. Skiff
    ================================================================================
    (End)  [CDS] Patricia Bauer (12-Oct-1993), rev. Francois Ochsenbein  20-Sep-1996