One of the most important space missions was launched from the Baikonur cosmodrome on 13 July 2019 (14:31 CEST). The launch was, initially, scheduled for June 21st, however it was postponed three times due to technical issues of the “Proton Read More …
ALMA image of the disk of cool hydrogen gas flowing around Sagittarius A*. The colours represent the motion of the gas relative to Earth: the red portion is moving away and the blue colour represents gas moving toward Earth. Credit: Read More …
In the last decade there has been growing evidence supporting the coeval growth of galaxies and their resident Supermassive Black Hole (SMBH). However, it is still not clear what are the physical mechanisms that drive the black hole (BH) growth, how the large-scale environment (the mass of their Dark Matter Halo, DMHM) affects these feeding mechanisms and what is the connection between the environment of the SMBH and the host galaxy properties, e.g. Star- Formation Rate (SFR) and stellar mass (M⋆).
More than 200 astronomers collaborated and using the Event Horizon Telescope (EHT) succeeded in taking the first picture of a supermassive black hole!!
ESA’s satellite, XMM-Newton, has recently discovered two giant channels of hot, X-ray emitting material flowing outwards from the Milky Way’s core into two enormous cosmic “bubbles”. These “bubbles” span about 50000 light years above and below the plane of our Galaxy Read More …
Astronomers used data from three X-ray satellites and found a black hole that spins at about 50% the speed of light!
Astronomers used X-ray data from NASA’s Chandra X-ray observatory and ESA’s XMM-Newton satellite as well as ultraviolet data from Sloan Digital Sky survey (SDSS) and found evidence that dark energy is getting stronger with time!!
Scientists used the Fermi telescope to measure the entire amount of starlight ever emitted! According to the measurement, the number of photons (particles of visible light) that escaped into space after being emitted by stars translates to 4×1084!! This is 4 followed by 84 zeros!!!
Ricardo Giacconi, known as the founder of X-ray astronomy, died on Sunday 9th of December at the age of 87.
The X-ray group of IAASARS at NOA, organises a conference in Corfu, Greece, in 19-22 June 2019. The title of the conference is: “Supermassive Black Holes: Environment and Evolution”