Researchers were able to find a pair of black holes in the galactic centers. This will help to better understand how exactly black holes grow and create the most powerful signals of gravitational waves.
The new study points to 5 pairs of supermassive black holes, each of which covers a million solar masses. They are formed in the process of galactic fusion. Couples recorded the analysis of a variety of data from various observatories, including Chandra with WISE.
Up to this point, scientists had ten confirmed pairs found at random. To confirm the truth of the dual nature, it was necessary to carefully re-examine the data on all telescopes.
The Galaxy Zoo project helped in this, in which optical information from the Sloan Digital Sky Survey was tested. From this set of information, researchers focused on objects where the distance between the galactic centers did not exceed 30,000 light years. Thus found 7 confluent systems. Powerful X-rays indicate the growth of supermassive black holes. In 5 sites, pairs of such sources were identified, which means there are two growing supermassive black holes there.
X-ray review of Chandra and infrared observations show that the holes are hidden in huge dust and gas cocoons.
The new method demonstrates the effectiveness of combining IR surveillance and X-ray visibility, as these two methods are capable of penetrating gas and dust flaps. This study is of paramount importance for the development of a gravitational wave of astrophysics.
When two supermassive black holes approach, gravity waves are formed, which help to study the deep Universe. Unfortunately, LIVO / VIRGO are not able to capture these events. Therefore, the task is performed by NANOGrav.
