Keyword: Tuorla Observatory

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Polarized X-rays reveal shape and orientation of extremely hot matter around black hole


The researchers observed the X-ray radiation from the matter around a black hole. According to the researchers the shape and orientation of the X-ray glow support the theory, that the X-rays come from the disc-shaped material flowing into the black hole which is perpendicular to previously imaged relativistic outflows of matter called jets. These findings give a better understanding about the inner workings of black holes and how they consume mass.

Researchers Managed to Model Violent Flares in Centre of Black Hole System


An international team of astronomers has used the optical HiPERCAM camera of the Gran Telescopio Canarias in La Palma and NASA’s NICER X-ray observatory aboard the International Space Station to create a video of a growing black hole system at an unprecedented level of detail. The study has increased scientific understanding on the immediate surroundings of black holes.

New Astro-polarimeter Sees First Light at the Nordic Optical Telescope – Enables More Accurate Observation of Celestial Objects


Astro-polarimetry is an important method in astronomical observation, aimed at detecting and measuring polarisation of light emitted, reflected, or scattered by astronomical objects such as asteroids, planets, nebulae, stars and exoplanets.  The astro-polamiter built with the lead of a research group from the University of Turku made its first observations in July 2019 at the Nordic Optical Telescope on the Canary Islands. In October 2019, the University of Turku becomes the joint owner of the Telescope.