Nils Ryde

Senior Lecturer, Excellent Teaching Practioner, Docent, MSc

Research areas and keywords

UKÄ subject classification

  • Astronomy, Astrophysics and Cosmology


  • Milky Way, Galactic Center, highresolution infrared stellar spectroscopy, red giants, abundance analysis, cosmic origin of the elements


My field of research is stellar spectroscopy. My main project deals with the origin of the galactic bulge and the chemical description of the Galactic Center and its connection to the inner 3 degrees of the bulge. The methodology I am using to achieve this goal is the investigation of giant stars in the bulge at high spectral resolution in the near-IR. A red thread through my research projects have been spectroscopy at high resolution with special emphasis on the opportunities that come with cutting-edge IR spectrometers and the development of methodologies for this new research field. See also


I am a member of the Pedagogical Academy at Lund University. I received the degree of Excellent Teaching Practitioner in May 2012.

I am the study advisor at the Department for Astronomy and Theoretical Physics, 2012-, and I am responsible for the courses ASTA03, Astronomins grunder (2009-) and ASTA34, Stellar Atmospheres and Radiation processes (2011-). I also supervise PhD-, master-, and bachelor-thesis students.


- Press release, July 2014, Lund University at (cover story) of our work in H. Jönsson,  N. Ryde, G. M. Harper, M. J. Richter, K. H. Hinkle, Astrophysics Journal Letters, 789, L41, 2014, in Swedish and English from Lund University. News in, among others, in TT News,, Göteborgs Posten,  and on Colgate's homepage. Our work was highlighted in an interview in Science Magazine, 11 September 2015 (DOI: 10.1126/science.aad1741). See more at

- Popular science article in Forskning och Framsteg on my research, see

- Interviewed by Sydsvenska Handelskammaren in the youtube series Med matematik i grunden

Recent research outputs

U. Heiter, K. Lind, M. Bergemann, M. Asplund, Š. Mikolaitis, P. S. Barklem, T. Masseron, P. de Laverny, L. Magrini, B. Edvardsson, H. Jönsson, J. C. Pickering, N. Ryde, A. Bayo Arán, T. Bensby, A. R. Casey, S. Feltzing, P. Jofré, A. J. Korn, E. Pancino & 10 others, F. Damiani, A. Lanzafame, C. Lardo, L. Monaco, L. Morbidelli, R. Smiljanic, C. Worley, S. Zaggia, S. Randich & G. F. Gilmore, 2021, In: Astronomy and Astrophysics. 645, 63 p., A106.

Research output: Contribution to journalArticle

Nils Ryde, Henrik Jönsson, Gregory Mace, Katia Cunha, Emanuele Spitoni, Melike Afşar, Daniel Jaffe, Rebecca Forsberg, Kyle F. Kaplan, Benjamin T. Kidder, Jae Joon Lee, Heeyoung Oh, Verne V. Smith, Christopher Sneden, Kimberly R. Sokal, Emily Strickland & Brian Thorsbro, 2020 Apr 14, In: Astrophysical Journal. 893, 1, 37.

Research output: Contribution to journalArticle

Graham M. Harper, Curtis N. Dewitt, Matthew J. Richter, Edward F. Guinan, Richard Wasatonic, Nils Ryde, Edward J. Montiel & Amanda J. Townsend, 2020 Apr 14, In: Astrophysical Journal Letters. 893, 1, L23.

Research output: Contribution to journalArticle

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