ADC/CDS Standard Document for Catalog:
/catalogs/2/2149/

1. Use the ADC Data Viewer Suite to visualize the data.
2. Get the data files via anonymous FTP. (See Note.)

II/149      Diffuse Interstellar Band Measurements (Snow+ 1977)
================================================================================
Catalogue of Diffuse Interstellar Band Measurements
    Snow Jr. T.P., York D.G., Welty D.E.
    <Astron. J., 82, 113 (1977)>
    =1977AJ.....82..113S
================================================================================
ADC_Keywords: Interstellar medium ; Spectroscopy

Description:
    This catalog contains diffuse band data collected from an exhaustive
    search of the literature and reduced to a common measurement system.
    The authors have adopted Herbig (1975ApJ...196..129H) as a standard
    data set for DIB measurements.

File Summary:
--------------------------------------------------------------------------------
 FileName     Lrecl  Records   Explanations
--------------------------------------------------------------------------------
ReadMe           80        .   This file
catalog         120     2798   Diffuse band data (Table III(b) of paper)
--------------------------------------------------------------------------------

See also:
    II/135 : Supplement to the Catalog of DIB (Guarinos, 1988)

Byte-by-byte Description of file: catalog
--------------------------------------------------------------------------------
   Bytes Format Units   Label     Explanations
--------------------------------------------------------------------------------
   1- 14  A14   ---     Name      Designation of the star
  16- 21  F6.2  deg     GLON      ? Galactic longitude (4)
  24- 29  F6.2  deg     GLAT      ? Galactic latitude (4)
      30  A1    ---     Note      [*] '*' See Note (4)
  34- 39  F6.3  %       Ac4430    ? Central depth of the continuum at 4430 A (1)
  42- 46  F5.3  0.1nm   W5780     ? Equivalent width (in A) of 5780 A line (1)
  49- 53  F5.3  0.1nm   W5797     ? Equivalent width (in A) of 5797 A line (1)
  58- 62  F5.3  0.1nm   W6284     ? Equivalent width (in A) of 6284 A line (1)
  64- 69  F6.3  mag     E(B-V)    ? Colour excess in the UBV system
  75- 78  F4.2  um      lambda    ? Wavelength, given in microns, at which
                                    the polarization is maximum
  84- 87  F4.2  %       MaxPol    ? Maximum value of the polarization (2)
  89- 93  F5.2  mag     Vmag      ? Magnitude
  96-112  A17   ---     SpType    MK spectral type
 113-115  I3    ---     Ref1      [0/430] Reference for position,
                                    photometry and spectroscopy (3)
 118-120  I3    ---     RefIDB    [1/430]? Reference for Interstellar Data (3)
--------------------------------------------------------------------------------
Note (1):
    These measurements have been converted statistically to a common
    measurement system by the authors, adopting the data of
    Herbig (1975ApJ...196..129H) as the standard data set,
    and using a least-squares fitting method.
Note (2):
    These polarization data are primarily from
    Hiltner (1956ApJS....2..389H) or
    Serkowski et al. (1975ApJ...196..261S) or from the several
    references given in the latter paper.
Note (3):
   The references below 100 indicate the diffuse band reference
   (from table II of paper):
     1.  Murdin                 (1972MNRAS.157..461M)
     3.  Snow                   (1973AJ.....78..913S)
     4.  Wu                     (1972ApJ...178..681W)
     5.  Duke                   (1951ApJ...113..100D)
     6.  Walker                 (1963MNRAS.125..141W) (first system)
     7.  Walker                 (1963MNRAS.125..141W) (second system)
     8.  Merrill et al          (1937ApJ....86..274M)
     9.  Underhill              (1956PDAO...10..201U)
    10.  Stoeckly and Dressler  (1964ApJ...139..240S)
    11.  Wampler                (1966ApJ...144..921W)
    12.  Walker and Hodge       (1965PDAO...12..401W)
    14.  Bromage and Nandy      (1973A&A....26...17B)
    15.  Marionni               (1971, unpublished)
    17.  Butler and Seddon      (1958PROE....2..113B)
    18.  Butler and Seddon      (1960PROE....2..187B)
    21.  Greenstein and Aller   (1950ApJ...111..328G)
    22.  Beals and Blanchet     (1938MNRAS..98..398B)
    23.  Baerentzen et al       (1967JO.....50...83B)
    24.  Gammelgaard            (1975A&A....43...85G)
    30.  Herbig                 (1975ApJ...196..129H)
   The references above 100 indicate other general catalogues,
   eventually combined with a diffuse band reference:
   100-130 Catalogue of Kennedy and Buscombe (1974; see Cat. <III/78>),
           plus the diffuse band reference corresponding to the last
           two digits.
   200-230 Blanco et al (1968 ; see Cat. <II/4>) plus the corresponding
           diffuse band reference
   300-330 Hiltner (1956ApJS....2..389H) plus the corresponding diffuse
           band reference
   400-430 Bonner Durchmusterung (Cat. <I/122> and <I/119>),
           or Cordoba Durchmusterung (Cat. <I/114>), plus the
           corresponding diffuse band reference
Note (4):  be aware that some positions (especially those with Ref1=24
    from Gammelgaard, 1975A&A....43...85G) are only accurate to 0.1deg!
    The * in the Note column indicates that the position is missing
    in the published table, and was added in February 1997 with the
    help of the SIMBAD data-base.
    There are however 3 stars with missing positions, all from
    Walker (1963MNRAS.125..141W):
    Arp e and Arp b (designated as "Special Cases" SC 900002 and
    SC 900003 in the published table), and BD+61 2615 (which does
    not exist in Bonner Durchmusterung)
--------------------------------------------------------------------------------

History:
  * The catalogue was keypunched at CDS under the control of J. Guarinos.
    in 1988.
  * The description was added by Julie Anne Watko [ADC] in June 1996.
  * The "catalog" file was recreated and checked in February 1997
    at CDS (Francois Ochsenbein). Some missing positions were added
    (stars flagged in column Note, byte 30); a few misalignments were
    corrected. The blank  positions, magnitudes and spectral types in
    consecutive records dealing with the same star were also filled.

Acknowledgements:
    CDS would like to thank Mme F. Boisselier for the typing of the
    machine readable version of the catalogue.

References:
  Baerentzen, Gammelgaard, Hilberg, Jorgenson, Kristenson, Nissen, and
    Rudkjobing (1967) J. Obs. 50, 83.
  Beals and Blanchet (1938) M.N.R.A.S. 98, 398.
  Blanco, Demers, Douglas, and Fitzgerald (1968) Pub. U.S. Naval Obs. 21, 1.
  Bromage and Nandy (1973) A.A. 26, 17.
  Butler and Seddon (1958a) Publ. R. Obs. Edin. 2, 113.
  Butler and Seddon (1958b) Publ. R. Obs. Edin. 2, 187.
  Duke (1951) Ap. J. 113, 100.
  Gammerlgaard (1975) A.A. 43, 85.
  Greenstein and Aller (1950) Ap.J. 111, 328.
  Herbig (1975) Ap.J. 196, 129.
  Hiltner (1956) Ap.J.Suppl. 2, 389.
  Kennedy and Buscombe (1974) MK, Spectral Classifications
    Published Since Jaschek's La Plata Catalogue (Northwestern U.,
    Evanston, IL).
  Marionni (1971) Unpublished.
  Merrill, Sanford, Wilson, and Burwell (1937) Ap.J. 86, 274.
  Murdin (1972) M.N.R.A.S. 157, 461.
  Serkowski, Mathewson, and Ford (1975) Ap.J. 196, 261.
  Snow (1973) A.J. 78, 913.
  Snow, York, and Welty (1977) A.J. 82, 113.
  Stoeckly and Dressler (1964) Ap.J. 139, 240.
  Underhill (1956) Publ. DAO 10, 201.
  Walker (1963) M.N.R.A.S. 125, 141.
  Walker and Hodge (1966) Publ. DAO 12, 401.
  Wampler (1966) Ap.J. 144, 921.
  Wu (1972) Ap.J. 178, 681.
================================================================================
(End)                                     Francois Ochsenbein [CDS]  27-Feb-1997