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J/A+AS/129/155      Si XI & Si XIII lines Stark broadening (Dimitrijevic+ 1998)
Stark broadening of spectral lines of multicharged ions of astrophysical
interest XVIII: Si XI and Si XIII spectral lines
       Dimitrijevic M.S., Sahal-Brechot S.
      <Astron. Astrophys. Suppl. Ser. 129, 155 (1998)>
      =1998A&AS..129..155D      (SIMBAD/NED BibCode)
ADC_Keywords: Atomic physics

Keywords: atomic data - line: profiles - plamas


Abstract:
    Using a semiclassical perturbation approach, we have calculated
    electron-, proton-, and He III-impact line widths and shifts for
    4 Si XI multiplets for perturber densities 1018-1023cm-3 and
    temperatures T=500000-4000000K, and for 61 Si XIII multiplets for
    perturber densities 1016-1023cm-3 and temperatures
    T=500000-6000000K. For lower perturber densities, obtained results are
    linear with perturber density.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table1.dat       123     1890   Stark broadening parameters due to e-, p- and
                                  He III-impacts for Si XI and Si XIII


See also:
               VI/98 : Stark broadening of H lines (Stehle+, 1999)
  Stark broadening of other elements (Dimitrijevic, Sahal-Brechot, Popovic)

      J/A+AS/105/243 : BeI lines (Dimitrijevic+ 1994)
      J/A+AS/105/245 : Al XI and Si XII (Dimitrijevic+ 1994)
      J/A+AS/107/349 : Ne VIII and Na IX (Dimitrijevic+ 1994)
      J/A+AS/109/551 : OIV and OV (Dimitrijevic+ 1995)
      J/A+AS/115/351 : C V and P V (Dimitrijevic+, 1996)
      J/A+AS/116/359 : Xe II lines (Popovic+, 1996)
      J/A+AS/117/127 : solar Mg I lines (Dimitrijevic+, 1996)
      J/A+AS/119/369 : Be III and B III (Dimitrijevic+, 1996)
      J/A+AS/119/529 : Sr I spectral lines (Dimitrijevic+, 1996)
      J/A+AS/120/373 : Sc II, Y II and Zr II Stark width (Popovic+ 1996)
      J/A+AS/122/163 : Ba I and Ba II lines (Dimitrijevic+, 1996)
      J/A+AS/122/533 : P IV spectral lines (Dimitrijevic+, 1997)
      J/A+AS/127/295 : Kr II lines (Popovic+ 1998)
      J/A+AS/127/543 : S V lines (Dimitrijevic+ 1998)
      J/A+AS/128/203 : Mn, Ga & Ge multiplets (Popovic+ 1998)
      J/A+AS/128/359 : Ca IX and Ca X lines (Dimitrijevic+ 1998)
      J/A+AS/130/539 : Na X (Dimitrijevic+ 1998)
      J/A+AS/131/141 : O VII and Mg XI (Dimitrijevic+ 1998)
      J/A+AS/131/143 : Sc X, Sc XI, Ti XI and Ti XII (Dimitrijevic+ 1998)
      J/A+AS/133/227 : K VIII and K IX (Dimitrijevic+ 1998)
      J/A+AS/140/191 : Ca I (Dimitrijevic+ 1999)
      J/A+AS/140/193 : Zn I (Dimitrijevic+ 1999)
      J/A+A/400/791  : Be III (Dimitrijevic+ 2003)
      J/A+A/417/375  : Cd III (Milovanovic+, 2004)
      J/A+A/423/397  : Si V (Ben Nessib+, 2004)
      J/A+A/425/1147 : Ga I (Dimitrijevic+, 2004)


Byte-by-byte Description of file: table1.dat

   Bytes Format Units     Label     Explanations

   1-  7  E7.2  cm-3      N         Perturber density
   8- 14  A7    ---       El        Element
  15- 22  A8    ---       Tr        Transition
  23- 30  F8.1  0.1nm     lambda    Wavelength
  33- 40  E8.2  0.1nm/cm3 C         Parameter C (1)
  43- 50  F8.0  K         T         Temperature
      52  A1    ---       n_We      [*] (4)
  53- 61  E9.3  0.1nm     We        FWHM for electron impacts (2)
      63  A1    ---       n_de      [*] (4)
  64- 73  E10.3 0.1nm     de        shift for electron impacts (3)
      76  A1    ---       n_Wp      [*] (4)
  77- 85  E9.3  0.1nm     Wp        FWHM for proton impacts (2) (5)
      88  A1    ---       n_dp      [*] (4)
  89- 98  E10.3 0.1nm     dp        shift for proton impacts (3) (5)
     101  A1    ---       n_WHe++   [*] (4)
 102-110  E9.3  0.1nm     WHe++     FWHM for He III-impacts (2)
     113  A1    ---       n_dHe++   [*] (4)
 114-123  E10.3 0.1nm     dHe++     shift for He III-impacts (3)

Note (1): C/FWHM gives an estimate of the maximum perturber density for which
           the line may be treated as isolated and tabulated data may be used
Note (2): FWHM denotes Full Width at Half Maximum

Note (3): A positive (resp. negative) shift is towards the red (resp. blue)

Note (4): An asterisk in this column indicates that 0.1<NV<0.5,
           (V=collision volume); beware of the fact that the limit of validity
           of the impact approximation  is attained for the value that follows
Note (5): Values for NV>0.5 are not given, because in this case the impact
           approximation is no longer valid


Acknowledgements: Dr Milan Dimitrijevic 

(End)                                         Patricia Bauer [CDS]   09-Sep-1997