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ADCADC/CDS Standard Document for Catalog:
/journal_tables/A+AS/135/555/


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J/A+AS/135/555  Illuminated atmospheres limb-darkening coeff. 1. (Alencar+ 1999)
================================================================================
Limb-darkening coefficients of illuminated atmospheres
1. Results for illuminated line-blanketed models with 3700K < Teff < 7000K
       Alencar S.H.P., Vaz L.P.R.
      <Astron. Astrophys. Suppl. Ser. 135, 555 (1999)>
      =1999A&AS..135..555A      (SIMBAD/NED BibCode)
================================================================================
ADC_Keywords: Models, evolutionary
Keywords: stars: fundamental parameters - stars: atmospheres -
          binaries: close; eclipsing

Description:
    In Table 1 we present the bolometric and monochromatic limb-darkening
    coefficients for 196 different combinations of the parameters: T_eff
    (illuminated model's effective temperature), F_rel (relative incident
    flux, defined in Sect. 2.1), nu (the cosine of the incidence angle
    relative to the atmosphere normal), T_h (the effective temperature of
    the illuminating flux). We present coefficients for the linear,
    quadratic, cubic, logarithmic, and square root laws, together with the
    quality factor Q (see Sect. 2.2) of the fitting.

    In Table 2 we present the passband-specific limb-darkening
    coefficients. We present the coefficients for the Stroemgren uvby
    filters and for the Johnson-Morgan UBVRI filters. B2 and B3 are the
    response function of the B filter with and without the earth's
    atmosphere transmission function, respectively (see Buser R.
    1998A&A....62..411B)

    In Table 3 we give the polynomial coefficients (Eqs. 8-11)
    for the Stroemgren uvby filters and for the Johnson-Morgan UBVRI
    filters and the five limb-darkening laws analysed.

Structure of file table1.dat:
------------------------------------------------------------------------------
      Records Format   Explanations
------------------------------------------------------------------------------
   Blocks of model.
            1 A80      Model number and parameters (in model.dat file)
      3-    6 A80      Self explanatory header
            7 A80      Bolometric linear coefficients
      9-  376 A80      Law coefficients

    378-73891 A80      Repeating the above for the 195 models
------------------------------------------------------------------------------

 Line 7 Format:
--------------------------------------------------------------------------------
   Bytes Format Units  Label      Explanations
--------------------------------------------------------------------------------
   1- 10  A10   ---    bolometric comment
  12- 18  F7.3  ---    xLin       coefficient of the linear law
  19- 20  A2    ---    (          space character and opening parenthesis
  21- 26  F6.4  ---    QLin       quality factor of the linear law
  27- 28  A2    ---    )          closing parenthesis and space character
  29- 36  F8.3  ---    xQua       linear coefficient of the quadratic law
  37- 44  F8.3  ---    yQua       non-linear coefficients of the quadratic law
  45- 46  A2    ---    (          space character and opening parenthesis
  47- 52  F6.4  ---    QQua       quality factor of the quadratic law
  53- 54  A2    ---    )          closing parenthesis and space character
  55- 62  F8.3  ---    xCub       linear coefficient of the cubic law
  63- 70  F8.3  ---    yCub       non-linear coefficients of the cubic law
  71- 72  A2    ---    (          space character and opening parenthesis
  73- 78  F6.4  ---    QCub       quality factor of the cubic law
  79- 80  A2    ---    )          closing parenthesis and space character
  81- 88  F8.3  ---    xLog       linear coefficient of the logarithmic law
  89- 96  F8.3  ---    yLog       non-linear coefficients of the logarithmic law
  97- 98  A2    ---    (          space character and opening parenthesis
  99-104  F6.4  ---    QLog       quality factor of the logarithmic law
 105-106  A2    ---    )          closing parenthesis and space character
 107-114  F8.3  ---    xSqu       linear coefficient of the square root law
 115-122  F8.3  ---    ySqu       non-linear coefficients of the square root law
 123-124  A2    ---    (          space character and opening parenthesis
 125-130  F6.4  ---    QSqu       quality factor of the square root law
 131-131  A1    ---    )          closing parenthesis
--------------------------------------------------------------------------------

 Line 9-376 Format:
--------------------------------------------------------------------------------
   Bytes Format      Units  Label      Explanations
--------------------------------------------------------------------------------
   1- 10  F10.2      nm     lambda     Wavelength
  12- 18  F7.3       ---    xLin       Coefficient of the linear law
  19- 20  A2         ---    (          Space character and opening parenthesis
  21- 26  F6.4       ---    QLin       Quality factor of the linear law
  27- 28  A2         ---    )          Closing parenthesis and space character
  29- 36  F8.3       ---    xQua       Linear coefficient of the quadratic law
  37- 44  F8.3       ---    yQua       Non-linear coefficients of the
                                        quadratic law
  45- 46  A2         ---    (          Space character and opening parenthesis
  47- 52  F6.4       ---    QQua       Quality factor of the quadratic law
  53- 54  A2         ---    )          Closing parenthesis and space character
  55- 62  F8.3       ---    xCub       Linear coefficient of the cubic law
  63- 70  F8.3       ---    yCub       Non-linear coefficients of the cubic law
  71- 72  A2         ---    (          Space character and opening parenthesis
  73- 78  F6.4       ---    QCub       Quality factor of the cubic law
  79- 80  A2         ---    )          Closing parenthesis and space character
  81- 88  F8.3       ---    xLog       Linear coefficient of the logarithmic law
  89- 96  F8.3       ---    yLog       Non-linear coefficients of the
                                        logarithmic law
  97- 98  A2         ---    (          Space character and opening parenthesis
  99-104  F6.4       ---    QLog       Quality factor of the logarithmic law
 105-106  A2         ---    )          Closing parenthesis and space character
 107-114  F8.3       ---    xSqu       Linear coefficient of the square root law
 115-122  F8.3       ---    ySqu       Non-linear coefficients of the square
                                        root law
 123-124  A2         ---    (          Space character and opening parenthesis
 125-130  F6.4       ---    QSqu       Quality factor of the square root law
 131-131  A1         ---    )          Closing parenthesis
 132-143  E12.3 mW/m2/sr/nm I(l,mu=1)  Central monochromatic intensity
--------------------------------------------------------------------------------

Structure of file table2.dat:
------------------------------------------------------------------------------
      Records Format   Explanations
------------------------------------------------------------------------------
   Blocks of model.
            1 A80      Model number and parameters (in model.dat file)
      3-    5 A80      Self explanatory
      6-   15 A80      Law coefficients

     17- 3136 A80      Repeating the above for the 195 models
------------------------------------------------------------------------------

 Line 6-15 Format:
--------------------------------------------------------------------------------
   Bytes Format Units  Label      Explanations
--------------------------------------------------------------------------------
   2-  3  A2    ---    filter     [uvbyUB2 B3VRI] passband identification
   9- 16  F7.3  ---    xLin       coefficient of the linear law
  17- 18  A2    ---    (          space character and opening parenthesis
  19- 24  F6.4  ---    QLin       quality factor of the linear law
  25- 26  A2    ---    )          closing parenthesis and space character
  27- 34  F8.3  ---    xQua       linear coefficient of the quadratic law
  35- 42  F8.3  ---    yQua       non-linear coefficients of the quadratic law
  43- 44  A2    ---    (          space character and opening parenthesis
  45- 50  F6.4  ---    QQua       quality factor of the quadratic law
  51- 52  A2    ---    )          closing parenthesis and space character
  53- 60  F8.3  ---    xCub       linear coefficient of the cubic law
  61- 68  F8.3  ---    yCub       non-linear coefficients of the cubic law
  69- 70  A2    ---    (          space character and opening parenthesis
  71- 76  F6.4  ---    QCub       quality factor of the cubic law
  77- 78  A2    ---    )          closing parenthesis and space character
  79- 86  F8.3  ---    xLog       linear coefficient of the logarithmic law
  87- 94  F8.3  ---    yLog       non-linear coefficients of the logarithmic law
  95- 96  A2    ---    (          space character and opening parenthesis
  97-102  F6.4  ---    QLog       quality factor of the logarithmic law
 103-104  A2    ---    )          closing parenthesis and space character
 105-112  F8.3  ---    xSqu       linear coefficient of the square root law
 113-120  F8.3  ---    ySqu       non-linear coefficients of the square root law
 121-122  A2    ---    (          space character and opening parenthesis
 123-128  F6.4  ---    QSqu       quality factor of the square root law
 129-129  A1    ---    )          closing parenthesis
--------------------------------------------------------------------------------

Structure of file table3.dat:
------------------------------------------------------------------------------
      Records Format Explanations
------------------------------------------------------------------------------
            1 A10    Filter (u, v, b, y, U, B2, B3, V, R, I)
   Line  2-30: 4 blocks of 7 records each for linear law
                 polynomial coefficients (Eq, 8)
   -------------------------------------------------------
            2 A10    Law (linear)
            3 A2     [a0] Coeff
   -------------------------------------------------------
    4-      5 A100   Parameters identification
    6-      9 A100   Data
   -------------------------------------------------------
   10-     16 A100   Repeating lines 3-9 for a1 coefficient
   17-     23 A100   Repeating lines 3-9 for a2 coefficient
   23-     30 A100   Repeating lines 3-9 for a3 coefficient
   -------------------------------------------------------
           31 A10    Non-linear law (quadratic, cubic, logarithmic, square root)
   -------------------------------------------------------
           32 A2      [a0] Coeff
   -------------------------------------------------------
   33-     34 A100    Parameters identification
   35-     42 A100    Data
   -------------------------------------------------------
   43-     53 A100    Repeating lines 32-42 for a1 coefficient
   54-     64 A100    Repeating lines 32-42 for a2 coefficient
   65-     75 A100    Repeating lines 32-42 for a3 coefficient
   -------------------------------------------------------
   76-    120 A100    Repeating lines 31-75 for another law
  121-    165 A100    Repeating lines 31-75 for another law
  166-    210 A100    Repeating lines 31-75 for another law
   -------------------------------------------------------
  211-   2100 A100    Repeating lines 1-210 for another filter


Line 2-30 format: 4 blocks of 7 records each for linear law polynomial
        coefficients (Eq, 8). Each block of 7 records has the structure:

Line 6-9 Format (for linear law):
--------------------------------------------------------------------------------
   Bytes Format Units   Label     Explanations
--------------------------------------------------------------------------------
   1-  7 A7     comm.   coeff.    ident. of the polynomial coefficient (Eq. 11)
   8- 18 G11.4  number  coeff.    polynomial coefficient dn000
  19- 29 G11.4  number  coeff.    polynomial coefficient dn001
  30- 40 G11.4  number  coeff.    polynomial coefficient dn002
  41- 51 G11.4  number  coeff.    polynomial coefficient dn100
  52- 62 G11.4  number  coeff.    polynomial coefficient dn101
  63- 73 G11.4  number  coeff.    polynomial coefficient dn102
  74- 84 G11.4  number  coeff.    polynomial coefficient dn200
  85- 95 G11.4  number  coeff.    polynomial coefficient dn201
  96-106 G11.4  number  coeff.    polynomial coefficient dn202
 107-117 G11.4  number  coeff.    polynomial coefficient dn300
 118-128 G11.4  number  coeff.    polynomial coefficient dn301
 129-199 G11.4  number  coeff.    polynomial coefficient dn302
--------------------------------------------------------------------------------
............END OF DESCRIPTION OF BLOCK OF 4 RECORDS FOR LINEAR LAW.............


........BEGIN OF DESCRIPTION OF BLOCK OF 8 RECORDS FOR NON-LINEAR LAW..........
Line 35-42 Format: (non-linear laws)
--------------------------------------------------------------------------------
   Bytes Format Units   Label     Explanations
--------------------------------------------------------------------------------
   1-  7 A7     comm.   coeff.    ident. of the polynomial coefficient (Eq. 11)
   8- 18 G11.4  number  coeff.    polynomial coefficient dn0l0
  19- 29 G11.4  number  coeff.    polynomial coefficient dn0l1
  30- 40 G11.4  number  coeff.    polynomial coefficient dn0l2
  41- 51 G11.4  number  coeff.    polynomial coefficient dn1l0
  52- 62 G11.4  number  coeff.    polynomial coefficient dn1l1
  63- 73 G11.4  number  coeff.    polynomial coefficient dn1l2
  74- 84 G11.4  number  coeff.    polynomial coefficient dn2l0
  85- 95 G11.4  number  coeff.    polynomial coefficient dn2l1
  96-106 G11.4  number  coeff.    polynomial coefficient dn2l2
 107-117 G11.4  number  coeff.    polynomial coefficient dn3l0
 118-128 G11.4  number  coeff.    polynomial coefficient dn3l1
 129-199 G11.4  number  coeff.    polynomial coefficient dn3l2
--------------------------------------------------------------------------------
..........END OF DESCRIPTION OF BLOCK OF 8 RECORDS FOR NON-LINEAR LAW..........
--------------------------------------------------------------------------------

File Summary:
--------------------------------------------------------------------------------
  FileName      Lrecl  Records   Explanations
--------------------------------------------------------------------------------
ReadMe             80        .   This file
model.dat          28      196   Model parameters
table1.dat        150    73892   Bolometric and monochromatic linear and
                                  non-linear limb-darkening coefficients
table2.dat        129     3136   Passband-specific linear and non-linear
                                  limb-darkening coefficients
table3.dat        139     2100   Polynomial adjusted coefficients for the same
                                  passbands of Table 2 and 5 limb-darkening laws
--------------------------------------------------------------------------------

See also:
    J/A+A/335/647 : Limb-darkening coefficients for ubvyUBVRIJHK (Claret 1998)
   J/A+AS/110/329 : LTE model atmospheres coeff. (Diaz-cordoves+, 1995)
   J/A+AS/114/247 : Limb-darkening coefficients for R I J H K (Claret+, 1995)
    J/AJ/106/2096 : Limb-darkening coefficients in binaries (Van Hamme 1993)

Byte-by-byte Description of file: model.dat
--------------------------------------------------------------------------------
   Bytes Format Units   Label     Explanations
--------------------------------------------------------------------------------
   1-  3  I3    ---     N         Model number
   5-  8  I4    K       Teff      Effective temperature of the original model
                                   to be illuminated
  10- 14  F5.3  ---     Frel      Relative incident flux
  16- 22  F7.5  ---     nu        Cosine of the incident angle relative to the
                                   surface normal
  24- 28  I5    K       Th        Effective temperature of the illuminating flux
--------------------------------------------------------------------------------

Acknowledgements: Luiz Paulo Ribeiro Vaz <vaz@suya.fisica.ufmg.br>
================================================================================
(End)                                         Patricia Bauer [CDS]   27-Nov-1998

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