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J/AN/328/938    Teff/line-depth ratio for ELODIE spectra     (Biazzo+, 2007)
Effective temperature vs. line-depth ratio for ELODIE spectra:
gravity and rotational velocity effects.
    Biazzo K., Frasca A., Catalano S., Marilli E.
   <Astron. Nachrichten, 328, 938-947 (2007)>
   =2007AN....328..938B
ADC_Keywords: Stars, late-type ; Effective temperatures ; Spectroscopy

Keywords: stars: fundamental parameters - stars: late-type -
          techniques: spectroscopic

Abstract:
    The dependence on the temperature of photospheric line-depth ratios
    (LDRs) in the spectral range 619.0-628.0nm is investigated by using a
    sample of 174 ELODIE Archive stellar spectra of luminosity class from
    V to III. The rotational broadening effect on LDRs is also studied. We
    provide useful calibrations of effective temperature versus LDRs for
    giant and main sequence stars with 3800≲Teff≲6000K and vsini in
    the range 0-30km/s. We found that, with the exception of very few line
    pairs, LDRs, measured at a spectral resolution as high as 42000,
    depend on vsini and that, by neglecting the rotational broadening
    effect, the Teff determination can be wrong by ∼100K in the worst
    cases.

Description:
    Averaged effective temperature (as obtained thanks to 15 line-depth
    ratios), logarithm of the luminosity, and LDR values of the stellar
    standard spectra not rotationally broadened.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table5.dat       211      174   Temperature, luminosity, and line-depth ratios of the
                            stellar standard spectra not rotationally broadened


See also:
    III/218 : ELODIE archive (Prugniel+, 2001)


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

   Bytes Format Units    Label    Explanations

   1-  2  A2    ---      ---      [HD]
   4-  9  I6    ---      HD       HD number of the standard stars
  11- 14  I4    K        Teff     Effective temperature of the standard stars
  16- 17  I2    K        e_Teff   Error on the effective temperature
  19- 23  F5.2  [10-7W]  logL     Logarithm of the standard star luminosity
  25- 28  F4.2  [10-7W]  e_logL   Error on the logarithm of luminosity
  30- 34  F5.3  ---      LDR1/2   ?=- Line-depth ratio
                                      λ6199.19 VI-λ6200.32 FeI
  36- 40  F5.3  ---     e_LDR1/2  ?=- Error on LDR1/2
  42- 46  F5.3  ---      LDR3/6   ?=- Line-depth ratio
                                      λ6210.67 ScI-λ6215.2 FeI+TiI
  48- 52  F5.3  ---     e_LDR3/6  ?=- Error on LDR3/6
  54- 58  F5.3  ---      LDR5/4   ?=- Line-depth ratio
                                      λ6213.83 VI-λ6213.44 FeI
  60- 64  F5.3  ---     e_LDR5/4  ?=- Error on LDR5/4
  66- 70  F5.3  ---      LDR7/6   ?=- Line-depth ratio
                                      λ6216.36 VI-λ6215.2 FeI+TiI
  72- 76  F5.3  ---     e_LDR7/6  ?=- Error on LDR7/6
  78- 82  F5.3  ---      LDR9/8   ?=- Line-depth ratio
                                      λ6224.51 VI-λ6223.99 NiI
  84- 88  F5.3  ---     e_LDR9/8  ?=- Error on LDR9/8
  90- 94  F5.3  ---     LDR11/10  ?=- Line-depth ratio
                                      λ6233.20 VI-λ6232.65 FeI
  96-101  F6.4  ---   e_LDR11/10  ?=- Error on LDR11/10
 103-107  F5.3  ---     LDR12/14  ?=- Line-depth ratio
                                      λ6242.84 VI-λ6243.82 SiI
 109-113  F5.3  ---   e_LDR12/14  ?=- Error on LDR12/14
 115-119  F5.3  ---     LDR13/15  ?=- Line-depth ratio
                                      λ6243.11 VI-λ6246.33 FeI
 121-125  F5.3  ---   e_LDR13/15  ?=- Error on LDR13/15
 127-132  F6.3  ---     LDR13/16  ?=- Line-depth ratio
                                      λ6243.11 VI-λ6247.56 FeII
 134-138  F5.3  ---   e_LDR13/16  ?=- Error on LDR13/16
 140-144  F5.3  ---     LDR17/18  ?=- Line-depth ratio
                                      λ6251.83 VI-λ6252.57 FeI
 146-150  F5.3  ---   e_LDR17/18  ?=- Error on LDR17/18
 152-156  F5.3  ---     LDR21/19  ?=- Line-depth ratio
                                      λ6256.89 VI-λ6255.95 FeI
 158-162  F5.3  ---   e_LDR21/19  ?=- Error on LDR21/29
 164-168  F5.3  ---     LDR21/20  ?=- Line-depth ratio
                                      λ6256.89 VI-λ6256.4 NiI+FeI
 170-174  F5.3  ---   e_LDR21/20  ?=- Error on LDR21/20
 176-180  F5.3  ---     LDR23/22  ?=- Line-depth ratio
                                      λ6266.33 VI-λ6265.14 FeI
 182-186  F5.3  ---   e_LDR23/22  ?=- Error on LDR23/22
 188-192  F5.3  ---     LDR24/25  ?=- Line-depth ratio
                                      λ6268.87 VI-λ6270.23 FeI
 194-199  F6.4  ---   e_LDR24/25  ?=- Error on LDR24/25
 201-205  F5.3  ---     LDR26/25  ?=- Line-depth ratio
                                      λ6274.66 VI-λ6270.23 FeI
 207-211  F5.3  ---   e_LDR26/25  ?=- Error on LDR26/25


Acknowledgements:
    Katia Biazzo, kbiazzo(at)oact.inaf.it
(End)            Katia Biazzo [INAF, Italy], Patricia Vannier [CDS]  20-Sep-2007