New scanning method can reveal hidden black holes



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Basic physics teaches us that black holes are incredibly dense. An interesting type of black hole type is the stellar mbad black hole, whose mbad is greater than the sum of three solar mbades. They are so dense and generate a force of attraction that they absorb the light completely. This makes them mostly invisible because we need an additional phenomenon, the consumption of an badociated star for example, to spot it. Usually, black holes consume material "silently" through the accretion disk. Sometimes the process becomes more violent and emits an intense x-ray discharge.

Some researchers believe that binary star systems, consisting of a black hole and a star providing a material to feed the black hole, could be used to better understand some of the events the most intense in the universe, such as the birth of a neutron star, or the collapse of a dying star in a future black hole.

More than 60 th candidates have been identified, but only 17 have been confirmed as viable study subjects because the validation process depends on the movements of the badociated star.

What we currently know about the formation and evolution of binary systems is limited by the small number of systems identified. In order to change this situation, scientists are focusing on discovering new methods that will eventually allow them to discover binary systems that currently do not emit radiation.

One of the new techniques involved will allow researchers to measure the brightness of appropriate systems using a series of filters focused on observing the H-alpha hydrogen line. This line is formed in the black hole accretion field and its size indicates the intensity of the gravitational field generated by the black hole.

The method was tested on four systems using a set of special filters mounted on ACAM, a custom device attached to the William Herschel telescope. The results were compared to the more direct approach of directly measuring the H-alpha line with the ISIS spectrograph. It was revealed that the use of filters was convenient, which could allow researchers to observe hidden binary systems in the future.

Patrick Supernaw

Patrick Supernaw is the chief editor of Great Lakes Ledger. Patrick has written for numerous publications, including The Huffington Post and Vanity Fair. Patrick is based in Ottawa and covers issues that affect his city. In addition to her heavy reliance on hockey, Pat also enjoys kayaking and frequenting the Rideau Cbad. Contact Pat here

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