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J/AJ/120/1364       Abundances in M3 and M13                 (Cavallo+, 2000)
Aluminum abundances, deep mixing, and the blue-tail second-parameter effect in
the globular clusters M3 and M13
    Cavallo R.M., Nagar N.M.
   <Astron. J. 120, 1364 (2000)>
   =2000AJ....120.1364C
ADC_Keywords: Clusters, globular ; Stars, giant ; Abundances

Keywords: globular clusters: individual (M3, M13) - stars: abundances -
          stars: horizontal-branch - stars: late-type - stars: Population II

Abstract:
    We analyze high-resolution, high signal-to-noise ratio spectra of six
    red giant branch (RGB) stars in the globular cluster M3 (NGC 5272) and
    three in M13 (NGC 6205) that were obtained with the 4 m Mayall
    Telescope and echelle spectrometer on Kitt Peak. The spectra include
    lines of O, Na, Mg, Al, Si, Ca, Ti, V, Mn, Fe, and Ni. We also analyze
    the [Al/Fe] values of 96 RGB stars in M13 covering the brightest 3.5
    mag, which include 66 measurements that were derived from
    moderate-resolution, low signal-to-noise ratio spectra obtained with
    the WIYN 3.5 m telescope and Hydra multiobject spectrograph, also on
    Kitt Peak.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
stars.dat        119        9   Positions and BV photometry
table2.dat        78      102   M3 & M13 giants measured equivalent widths
table9.dat        46       66   Model atmosphere and equivalent width
                                 measurements for M13 WIYN giants


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

   Bytes Format Units   Label     Explanations

   1-  7  A7    ---     Name      Star name (1)
   9- 30  A22   ---     AltName   Alternate names (1)
  32- 36  F5.2  mag     Vmag      V magnitude
  38- 41  F4.2  mag     B-V       B-V colour index
  43- 44  I2    h       RAh       ? Right ascension (J2000.0) (2)
  46- 47  I2    min     RAm       ? Right ascension (J2000.0) (2)
  49- 52  F4.1  s       RAs       ? Right ascension (J2000.0) (2)
      54  A1    ---     DE-       Declination sign (J2000.0) (2)
  55- 56  I2    deg     DEd       ? Declination (J2000.0) (2)
  58- 59  I2    arcmin  DEm       ? Declination (J2000.0) (2)
  61- 62  I2    arcsec  DEs       ? Declination (J2000.0) (2)
  64- 76  A13   ---     SimName   Simbad Name
  78-119  A42   ---     ONames    Other names (in Simbad nomenclature)

Note (1): Name origins:
     vZ: von Zeipel, 1908AnPar..25....1V  (M3)
     L: Ludendorff 1905POPot..50....1L (M13)
          Alternate names are from:
     Sandage, 1953AJ.....58...61S (AA, III- 28),
     Arp, 1959AJ.....64..175A (III-56),
     Sawyer Hogg, 1973, Cat. V/97 (V11),
     (CM) Cudworth & Monet, 1979AJ.....84..774C
     (SK) Sandage & Katem, 1982AJ.....87..537S
     (F) Ferraro et al., 1997A&A...320..757F
     (MB) M.Bolte 1998, private communication.
Note (2): Positions from Simbad database



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

   Bytes Format Units   Label     Explanations

   1-  5  A5    ---     Ion       Ion
   7- 13  F7.2  0.1nm   Lambda    Wavelength
  15- 18  F4.2  eV      EP        Energy potential
  20- 24  F5.2  ---     loggf     Oscillator strength
  26- 30  F5.1  0.1pm   EWAA      ? Cl* NGC 5272 S AA equivalent width (M3)
  32- 36  F5.1  0.1pm   EWvZ297   ? NGC 5272 297 equivalent width (M3)
  38- 42  F5.1  0.1pm   EWIII-28  ? Cl* NGC 5272 S III-28 equivalent width (M3)
  44- 48  F5.1  0.1pm   EWvZ1000  ? NGC 5272 1000 equivalent width (M3)
  50- 54  F5.1  0.1pm   EWvZ1127  ? NGC 5272 1127 equivalent width (M3)
  56- 60  F5.1  0.1pm   EWMB4     ? NGC 5272 752 equivalent width (M3)
  62- 66  F5.1  0.1pm   EWL262    ? NGC 6205 262 equivalent width (M13)
  68- 72  F5.1  0.1pm   EWL324    ? NGC 6205 324 equivalent width (M13)
  74- 78  F5.1  0.1pm   EWIII-56  ? III-56 equivalent width (M13)


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

   Bytes Format Units   Label     Explanations

   1-  6  A6    ---     Name      Star name
   8- 14  A7    ---     AltName   Alternative name
  17- 21  F5.2  mag     Vmag      V band magnitude
  24- 27  I4    K       Teff      Effective temperature
  30- 33  F4.2  [cm/s2] Log(g)    Log of the surface gravity
  36- 39  F4.2  km/s    MicroVel  Microturbulent velocity
  42- 46  F5.1  0.1pm   EWAlI     Equivalent width of Al I (6696 Å) in mÅ


History: From AJ electronic version

(End)                     Greg Schwarz [AAS], Patricia Bauer [CDS]   25-Sep-2000