Astronomers have discovered the high-speed outflow of gas from a quasar, the light from which was up to us 10 billion years. The substance in the outflow is moving at a speed of 13 per cent of the speed of light, this process can significantly affect the rate of star formation in the vicinity of the quasar. Article published in the journal The Astrophysical Journal.
Quasars (quasi-star radio sources) are among the brightest astronomical objects in the visible Universe, and constitute the nuclei of galaxies at an early stage of formation in which massive black holes are actively devouring material. The average luminosity of a quasar is about ten trillion times bigger than the Sun. One type of such astrophysical objects are BAL quasars-QSO — are observed in their spectra of broad absorption lines of different elements. It is believed that this indicates the presence of gas flows outward from a Central source. The study of these objects provides rich material for understanding the nature of active galactic nuclei.
A team of astronomers led by Sarah Gallagher (Sarah Gallagher) reported the results of observations of the quasar SDSS J135246.37+423923.5 with spectrograph GNIRS (Gemini Near-Infrared Spectrograph) mounted on a ground-based telescope “Gemini-North”. This object has in its spectrum a broad absorption line of iron, we see him as he was 10 billion years ago.
Analysis of the obtained data allowed us to determine that from the nucleus of quasar outflow of gas moving at a speed of 38 thousand kilometers per second, which is a record for quasars value. Able to estimate the mass of a supermassive black hole, which is 8.6 billion solar masses that is two thousand times the mass of the black hole in the center of the milky way. The radius of the outflow is about ten parsecs, and it starts near the dust torus surrounding the black hole.
It is believed that flowing from the core gas flows with energy in excess of 0.5-5 percent of the luminosity of the quasar can greatly reduce the rate of star formation throughout the galaxy due to created lack of matter for new stars. Thus, this discovery proves once again the feedback between active galactic nuclei and the way they form stars. Now scientists are interested in how quasars can accelerate the gas to such high speeds, to find out, it is necessary to find such objects among the already discovered quasars.
Earlier we talked about how the Telescope event horizon got the most detailed image of the jet of the quasar 3C 279, where was found a record of a distant blazar, and how scientists first identified the source of neutrinos of ultrahigh energies.