The extreme environment surrounding the black hole at the centre of our galaxy is birthplace for new stars, according to a scientist from the University of Leicester.
Dr Sergei Nayakshin and his co-author, Rashid Sunyaev of the Max Plank Institute for Physics in Germany, used Chandra X-ray Observatory images to study the region around Sgr A*, the supermassive black hole at the centre of the Milky Way. Their results challenge the traditional theories of star formation, as they show that stars have formed close in to the black hole and contain a much smaller percentage of low mass stars than predicted.
This is the first solid observational evidence for star formation in an accretion disc around a black hole, and it implies that the inner parsecs of galaxies are even more exotic and interesting places than we thought so far. The results are to be published in the Monthly Notices of the Royal Astronomical Society.
Anita Heward | alfa
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The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.
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