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AstrophysicsCosmology
A particularly exciting period has arrived for studying the overall properties of the Universe. A wide range of ground and space experiments are gathering an unprecedented amount of high-quality data, which allow us to tackle some of the most interesting and fundamental physical problems: the nature of dark energy and dark matter, the properties of the early Universe and structure formation from the scale of galaxies to the scale of the largest known matter configurations, galaxy superclusters and filaments. Galaxy Physics
Galaxies are the largest single objects in the Universe. Within them, some of the most important processes take place: the circulation of the cosmic material from gas to stars and back, resulting in the enrichment of matter with various chemical elements. In our galaxy physics team we study the structure and composition of both local and distant galaxies. We also consider the influence of neighbouring galaxies and the general distribution of the surrounding matter on the evolution of galaxies. Stellar Physics
Stars are the main building blocks of the visible universe. They act as thermonuclear reactors, synthesizing all the chemical elements heavier than hydrogen and helium. Stellar physicists at Tartu Observatory are studying single and binary stars, both theoretically and observationally. The main research areas are as follows: variability and evolution of massive stars; shells, discs and other outflows from stars; symbiotic and related binary stars; preparations to the analysis of the Gaia data; computations of stellar model atmospheres and synthetic spectra; relativistic physics in the sources of gamma-ray-bursts; statistical analysis of astronomical time series.
International Research Partners in the Field of Astrophysics
Current Reasearch Projects in the Field of Astrophysics
European Space Agency (ESA PECS) Projects
Estonian Science Agency Projects
Personal Research Grants
European Regional Development Fund Projects for Improving of the Research Infrastructure
- Improvement of accessibility to telescope buildings and pavilions of Tartu Observatory
2011 - 2012 JUP 3.2.0902.11–0003
Publications in the field of Astrophysics
Cosmology
- Detecting filamentary pattern in the cosmic web: a catalogue of filaments for the SDSS
Tempel, E.; Stoica, R. S.; Martínez, V. J.; et al. (2014)
- Angular fluctuations in the CXB: is Fe 6.4 keV line tomography of the large-scale structure feasible?
Hütsi, G.; Gilfanov, M.; Sunyaev, R. (2012)
- Fermi 130 GeV gamma-ray excess and dark matter annihilation in sub-haloes and in the Galactic centre
Tempel, E; Hektor, A.; Raidal, M. (2012)
- Groups and clusters of galaxies in the SDSS DR8. Value-added catalogues
Tempel, E.; Tago, E.; Liivamägi, L. J. (2012)
- SDSS DR7 superclusters. The catalogues
Liivamägi, L. J.; Tempel, E.; Saar, E. (2012)
- Multimodality in galaxy clusters from SDSS DR8: substructure and velocity distribution
Einasto, M.; Vennik, J.; Nurmi, P.; et al. (2012)
- Wavelet analysis of baryon acoustic structures in the galaxy distribution
Arnalte-Mur, P.; Labatie, A.; Clerc, N.; et al. (2012)
- The Sloan Great Wall. Morphology and Galaxy Content
Einasto, M.; Liivamägi, L. J.; Tempel, E.; et al. (2011)
- Planck early results. VIII. The all-sky early Sunyaev-Zeldovich cluster sample
Planck collaboration (2011)
- Towards understanding the structure of voids in the cosmic web
Einasto, J.; Suhhonenko, I.; Hütsi, G.; et al. (2011)
- Power spectrum of the maxBCG sample: detection of acoustic oscillations using galaxy clusters
Hütsi et al. (2010)
- Cross-calibrating X-ray detectors with clusters of galaxies: an IACHEC study
Nevalainen, J.; David, L.; Guainazzi, M. (2010)
Galaxy Physics
- Narrow-line H i and cold structures in the interstellar medium
Haud, U. (2013)
- BUDHIES I: characterizing the environments in and around two clusters at z⋍0.2
Jaffé, Y. L.; Poggianti, B. M.; Verheijen, M. A. W.; et al. (2013)
- Stellar mass map and dark matter distribution in M 31
Tamm, A.; Tempel, E.; Tenjes, P.; Tihhonova, O.; Tuvikene, T. (2012)
- Galaxy morphology, luminosity, and environment in the SDSS DR7
Tempel, E.; Saar, E.; Liivamägi, L. J.; et al. (2011)
- SDSS surface photometry of M 31 with absorption corrections
Tempel, E.; Tuvikene, T.; Tamm, A.; Tenjes, P. (2011)
Stellar Physics
- Ionization break-out from millisecond pulsar wind nebulae: an X-ray probe of the origin of superluminous supernovae. Metzger, Brian D.; Vurm, Indrek; Hascoët, Romain; Beloborodov, Andrei M. (2014)
- The Gaia astrophysical parameters inference system (Apsis). Pre-launch description
Bailer-Jones et al. (2013)
- Flip-flops of FK Comae Berenices
Hackman, T.; Pelt, J.; Mantere, M. J.; et al (2013)
- Molecular emission from GG Carinae's circumbinary disk
Kraus, M.; Oksala, M. E.; Nickeler, D. H.; et al. (2013)
- On Thermalization in Gamma-Ray Burst Jets and the Peak Energies of Photospheric Spectra
Vurm, I.; Lyubarsky, Y.; Piran, T. et al. (2013)
- A new observational tracer for high-density disc-like structures around B[e] supergiants
Aret, A.; Kraus, M.; Muratore, M. F.; Borges Fernandes, M. (2012)
- Variability Survey of Massive Stars in OB-Associations: Preliminary Results on the Cygnus Region
Laur, J.; Tuvikene, T.; Eenmäe, T.; Kolka, I.; Leedjärv, L. (2012)
- A Three-dimensional View of the Remnant of Nova Persei 1901 (GK Per)
Liimets, T.; Corradi, R. L. M.; Santander-García, M. et al. (2012)
- The hypergiant HR 8752 evolving through the yellow evolutionary void
Nieuwenhuijzen, H.; De Jager, C.; Kolka, I. et al (2012)
- Multiperiodicity, modulations and flip-flops in variable star light curves. I. Carrier fit method
Pelt, J.; Olspert, N.; Mantere, M. J.; Tuominen, I. (2011)
Teaching in the Field of Astrophysics
- LOFY.04.014, 3 ECP, Hydrodynamics I (B.S. Students) - Peeter Tenjes
- LOFY.04.022, 3 ECP Physical Cosmology (B.S. Students) - Mirt Gramann
- LOFY. 04.023, 3 ECP, Astronomy (B.S. Students, algebra based) - Rain Kipper
- LOFY.04.026, 6 ECP, General Astronomy (B.S. Students, calculus based) - Peeter Tenjes
- LOFY.01.010, 3 ECP, Large Scale Physics (B.S. Students) - Mirt Gramann
- LOFY.04.035, 6 ECP, Equations of Mathematical Physics (B.S. Students) - Tõnu Viik
- LOFY.04.027, 12 ECP, Seminar in Astrophysics (B.S. and M.S. Students) - Rain Kipper
- LOFY.04.058, 6 ECP Practical astronomy (M.S. and PhD Students) - Tõnis Eenmäe, Tiina Liimets, Uno Veismann
- LOFY.04.071, 6 ECP, Theoretical astrophysics (M.S. and PhD Students) - Tõnu Viik
- LOFY.04.069, 3 ECP, Hydrodynamics II (M.S. and PhD Students) - Peeter Tenjes
- LOFY.04.075, 3 ECP, High Energy Astrophysics (M.S. and PhD Students) - Jukka Nevalainen
- LOFY.04.060, 6 ECP, Methods of Mathematical Physics (M.S. and PhD Students) - Peeter Tenjes
- LOFY.04.028, 6 ECP, Physics of Stellar Systems and Galaxies (M.S. and PhD Students) - Peeter Tenjes
- LOFY.04.072, 6 ECP, Cosmology (M.S. and PhD Students) - Enn Saar
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