The University of Wroclaw (Poland) is pleased to announce the international summer school "Spectroscopic data analysis with iSpec". That will take place in Wroclaw, Poland between 26 and 29 June 2018.

The aim of this school is to give participants a thorough introduction into the treatment and analysis of stellar spectra, including deriving the atmospheric parameters and the chemical abundances. The tool which will be used for this purpose is the code iSpec.

iSpec is a tool for the treatment and analysis of stellar spectra. Some of the main functionalities for spectra treatment and library creation that are integrated into iSpec are the following: cosmic rays removal, continuum normalization, resolution degradation, radial velocity determination and correction, telluric lines identification, re-sampling. iSpec is also capable of determining atmospheric parameters (i.e effective temperature, surface gravity, metallicity, micro/macroturbulence, rotation) and individual chemical abundances for FGKM stars by using two different approaches: synthetic spectra fitting technique or equivalent widths method. iSpec integrates MARCS and ATLAS model atmospheres together with the following radial transfer codes: SPECTRUM (R. O. Gray), Turbospectrum (Bertrand Plez), SME (Valenti & Piskunov), MOOG (Chris Sneden), and Synthe/WIDTH9 (Kurucz/Atmos). The user-friendly interface is perfect for learning and testing. However, to take advantage of the full potential, iSpec can be used from Python. This is the recommended way to use iSpec for complex scientific studies, it ensures reproducibility and give access to a wider range of functionalities and options.

The participants of the school "Spectroscopic data analysis with iSpec" will be given introductory lectures to iSpec and some hands-on experience with determination of the atmospheric parameters of A, F, G, K, and M type stars. The exercises will be based on publicly available stellar spectra as well as on pre-computed synthetic spectra.

Who can apply?

The course is open to PhD and master students, and early career scientists.

The master and PhD students will be required to provide a short explanation how this school will be beneficial for their future career development, and to provide a recommendation letter written by the supervisor of their master or PhD thesis.

Technical requirements

The participants will be required to have installed and tested on their own computers all the software that will be used during the school, i.e. iSpec and python.

The instructions for installing iSpec have been provided on this web site. The organizers will distribute the needed instructions, including several ways of installing iSpec, several weeks before the beginning of the workshop, encouraging everybody to have iSpec installed. They will also provide all help that will be possible remotely.

The registration fee will be no more than 200 euros, a small fee reduction may be granted for a limited number of students that apply for it.


(all lectures and exercises will be in English)

  • Sergi Blanco-Cuaresma (Harvard-Smithsonian Center for Astrophysics, USA)
  • Barry Smalley (Keele University, United Kingdom)
  • Zbigniew Kołaczkowski (Centrum Astronomiczne im. Mikołaja Kopernika Polskiej Akademii Nauk, Poland; University of Wrocław, Poland)
  • Ewa Niemczura (University of Wrocław, Poland)



University of Wroclaw, Wroclaw, Poland

Science Organizing Committee

  • Ewa Niemczura (University of Wrocław, Poland)
  • Sergi Blanco-Cuaresma (Harvard-Smithsonian Center for Astrophysics, USA)
  • Barry Smalley (Keele University, United Kingdom)
  • Victoria Antoci (Department of Physics and Astronomy, Aarhus University, Denmark)
  • Joanna Molenda-Żakowicz (University of Wrocław, Poland)

Local Organizing Committee

  • Ewa Niemczura (University of Wrocław, Poland)
  • Katarzyna Mikuła (University of Wrocław, Poland)
  • Joanna Molenda-Żakowicz (University of Wrocław, Poland)
  • Milena Ratajczak (University of Wrocław, Poland)


Wroclaw Centre for Networking and Supercomputing at the Wroclaw University of Technology, Wroclaw, Poland