Scientists have observed the deeper structures of the quasar jet stream

Scientists have observed the deeper structures of the quasar jet stream
Scientists have observed the deeper structures of the quasar jet stream

Quasars, or quasars, are one of the brightest and most active types of supermassive black holes that feed on gas at the centers of distant galaxies. 3C 273 is the first quasar ever identified. It is located in the constellation Virgo.

An international group of scientists have published new observations of 3C 273. They recorded deeper and deeper sections of the prominent plasma glow in the quasar. It also includes observations of spacecraft 3C 273 at the highest angular resolution to date, to obtain data on the deepest part of the plane, near the central black hole.

A global network of radio antennas, including the Global Millimeter VLBI Array (GMVA) and Chile’s Atacama Large Millimeter/submillimeter Array (ALMA), worked in close coordination to complete the pilot research. Coordinated observations were also carried out using the High Sensitivity Array to examine 3C 273 in various fields and determine the overall shape of the aircraft. The data used in this study was collected in 2017, just as the Event Horizon Telescope (EHT) observations were produced. The first image of a black hole.

Scientists have taken their first look at the deepest jet stream region in A quasar where collimation occurs, thanks to the imagery of the 3C 273 spacecraft. Scientists have also discovered that at great distances, the angular stream of plasma emanating from the black hole becomes more intense. A very narrow part of the plane extends far beyond the area where the black hole’s gravity does not expire.

This new view and data will allow scientists to further study how quasar jets align or contract. “The results raise a new question: How does jet collimation occur consistently across various black hole systems?” says Kazunori Akiyama, research scientist at the MIT Haystack Observatory. Photos: Hiroki Okino and Kazunori Akiyama; GMVA+ALMA and HSA images: Okino et al.; HST Images: ESA/Hubble & NASA.

Kazunori Akiyama, a research scientist at the MIT Haystack Observatory and project leader, said, “It’s amazing to see strong currents form slowly over such long distances. Very active quasars. It has also been detected nearby in a much weaker and less energetic supermassive black hole. The results raise new questions: How does jet collimation occur consistently across various black hole systems? “

Lynn Matthews, principal research scientist at MIT’s Hastack Observatory and commissioning scientist told APP, “The ability to use ALMA as part of a global VLBI network is a complete game changer for black hole science. This allowed us to get the first-ever image of a supermassive black hole, and now it’s helping us see for the first time something amazing new. details about how black holes drive their jets.” .

Keiichi Asada, Associate Research Fellow at Academia Sinica, Institute of Astronomy and Astrophysics (ASIAA) in Taiwan, He saidDan “This discovery sheds light on collimation in quasar jets. The EHT’s keen eyes will allow them to reach similar areas in quasar jets farther away. We hope to make progress on our new ‘homework’ from this study, which will finally allow us to answer the problem. It’s been a hundred years about how planes crash.”

Journal Reference:

  1. Hiroki Okinawa and others. Relativistic jet collimator in Quasar 3C 273. Journal of Astrophysics. DOI 10.3847/1538-4357/ac97e5


The article is in Indonesian

Tags: Scientists observed deeper structures quasar jet stream

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