Wednesday , June 7 2023

There is a new content on the moonlit Messenger of Omnibus.


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Omwamwi was less than scientists expected.In this new study, which yields data on the first interstellar material that flies through the solar system, is written with a record of the whole body.

Omwamwi was first registered as a telescope Pan-STARRS 1 while reviewing Earth asteroids near Hawaii in October 2017. More observations performed by numerous ground-based telescopes and the space telescope "Hubble" showed sunlight reflected from the surface of the object. A large change in subject brightness led to the conclusion that Omwamwi had an elongated shape and did not exceed 800 meters in length.

There is some new research on the Omnibus in the recent journal Astronomical Journal, which is not in fact some speculation.

Space Telescope "Spitzer" tracks asteroids and comets by infrared energy or heat. It can provide more accurate information about the size of the object than optical observation or reflected sunlight. The fact that Omwamwi is too dark for "Spitzer" sets certain limits on the total surface area.

Using three models that provide different assumptions about the composition of the object, "Spitzer" limited the spherical diameter Omwamwi to 400, 140 and 100 meters. The big difference in results is based on a hypothesis about the configuration that affects how Omwamwi sees the "Spitzer" at a certain size.

"Omwamwi was full of surprises on the first day, so I could not wait to show" Spitzer. "David Trilling of Northern Arizona University – Omwamwi is too small for" Spitzer " The fact is actually a worthwhile outcome. "

The new size limit corresponds to a recent study by ESA astronomer Marco Micheli. According to them, small changes in speed and direction Omwamwi occurred as a result of degassing. In other words, what was assigned on the surface of the gas acted like a small accelerator.

Omwamwi also proved to be somewhat smaller than normal comets in the solar system. The conclusion that he had experienced a degassing suggests that it was composed of frozen gases like a comet.

"Our research suggests that Omwamwi can be reflected ten times more than comets in the solar system (with higher albedo – roughly Ed)," says Trilling.

The comet's albedo can change during "life". As you approach the sun, the ice becomes hot and turns into gas, which sweeps away dust and dirt on the surface and finds reflections of ice.

Omwamwi traveled the interstellar space, which could "refresh" the surface of the star by millions of years away from the star. However, it will probably warm up enough when approaching the sun for about five weeks before opening.

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