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Luridiana

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Paper presented by Valentina Luridiana and Jorge García-Rojas at the IAU Symposium 283, Planetary Nebulae: an Eye to the Future, 25-29 July 2011, Tenerife, Spain.

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Luridiana

  1. 1. A brief report on the workshop held in Tenerife on 25-27 October 2010 Valentina Luridiana (IAC, ULL) Jorge García-Rojas (IAC, ULL) PlanetaryIAU 283 An eye Nebulae to the future 25-29 July, 2011 Puerto de la Cruz
  2. 2. rationale of the workshop •  Do uncertainties in atomic data matter? " Planetary NebulaeIAU 283 - Puerto de la Cruz, 25-29 July, 2011 An eye to the future
  3. 3. rationale of the workshop HH204 (courtesy of M. Núñez-Díaz) Planetary NebulaeIAU 283 - Puerto de la Cruz, 25-29 July, 2011 An eye to the future
  4. 4. rationale of the workshop •  How large are uncertainties in atomic data?" •  Why are they not usually specified?" •  If they are not given, how can I estimate them?" •  How can I decide which ones to use? " •  How will they affect my final results?" Planetary NebulaeIAU 283 - Puerto de la Cruz, 25-29 July, 2011 An eye to the future
  5. 5. participants PRODUCERS" " Aggarwal, Bautista, Mendoza..." USERS" " ASSESSORS" Stellar + nebular: " Wesson, Bergemann, .." Ferland (Cloudy), Del Zanna (CHIANTI), Shaw (nebular)... " Planetary NebulaeIAU 283 - Puerto de la Cruz, 25-29 July, 2011 An eye to the future
  6. 6. rationale of the workshop •  How large are uncertainties in atomic data? " •  Crucially depends on the particular calculation and its scope" •  Strong transitions better than weak transitions " •  High Te better than low Te " •  Ei better than Aij better than Ω (Ei∼1%, Αij ~ 3-10%, Ω 5 50% or more!)" •  Why are they not usually specified?" •  If they are not given, how can I estimate them?" •  How can I decide which ones to use? " •  How will they affect my final results?" Planetary NebulaeIAU 283 - Puerto de la Cruz, 25-29 July, 2011 An eye to the future
  7. 7. rationale of the workshop [Ne V] (Mendoza) •  How large are uncertainties in atomic data? " •  Crucially depends on the particular calculation and its scope" •  Strong transitions better than weak transitions " •  High Te better than low Te " •  Ei better than Aij better than Ω (Ei∼1%, Αij ~ 3-10%, Ω 5 50% or more!)" •  Why are they not usually specified?" •  If they are not given, how can I estimate them?" •  How can I decide which ones to use? " •  How will they affect my final results?" Planetary NebulaeIAU 283 - Puerto de la Cruz, 25-29 July, 2011 An eye to the future
  8. 8. rationale of the workshop •  How large are uncertainties in atomic data? " •  Crucially depends on the particular calculation and its scope" •  Strong transitions better than weak transitions " •  High Te better than low Te " •  Ei better than Aij better than Ω (Ei∼1%, Αij ~ 3-10%, Ω 5 50% or more!)" •  Why are they not usually specified?" •  If they are not given, how can I estimate them?" •  How can I decide which ones to use? " •  How will they affect my final results?" Planetary NebulaeIAU 283 - Puerto de la Cruz, 25-29 July, 2011 An eye to the future
  9. 9. advice to producers •  Compare explicitly to previous data " •  In case of large differences, try to understand and explain them without making assumptions" •  Tailor your calculations to the potential market" Planetary NebulaeIAU 283 - Puerto de la Cruz, 25-29 July, 2011 An eye to the future
  10. 10. advice to users   •  Compare among different data sets " •  Ask the authors" •  Remember that the newest data are not always the best" •  Find observational tests" •  Do not extrapolate" •  Cite the work you are using" •  Ask other modellers for their experience/opinion/assessment" " " " Planetary NebulaeIAU 283 - Puerto de la Cruz, 25-29 July, 2011 An eye to the future
  11. 11. advice to users Ramsbottom et al 1996   •  Compare among different data sets " •  Ask the authors" •  Remember that the newest data are not always the best" •  Find observational tests" •  Do not extrapolate" Tayal & Zatsarinny 2010 •  Cite the work you are using" •  Ask other modellers for their experience/opinion/assessment" " " " Planetary NebulaeIAU 283 - Puerto de la Cruz, 25-29 July, 2011 An eye to the future
  12. 12. advice to users   •  Compare among different data sets " •  Ask the authors" •  Remember that the newest data are not always the best" •  Find observational tests" •  Do not extrapolate" •  Cite the work you are using" •  Ask other modellers for their experience/opinion/assessment" " " " Planetary NebulaeIAU 283 - Puerto de la Cruz, 25-29 July, 2011 An eye to the future
  13. 13. communication Planetary NebulaeIAU 283 - Puerto de la Cruz, 25-29 July, 2011 An eye to the future
  14. 14. communication astroatom.wordpress.com Planetary NebulaeIAU 283 - Puerto de la Cruz, 25-29 July, 2011 An eye to the future
  15. 15. thank you! Planetary NebulaeIAU 283 - Puerto de la Cruz, 25-29 July, 2011 An eye to the future

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