Monday , May 16 2022

New details about the mysterious interstellar messenger Omwamwi


З & # 39; явилися нові подробиці про таємниче міжзоряному посланнику Оумуамуа

Omwamwi was lower than expected by scientistsIn the new study, information was obtained about the first known interstellar object flying along the solar system, with reference to Telgrafa.

Omwamwi was first recorded in Hawaii in October 2017 during the inspection of asteroids in the world with the telescope Pan-STARRS 1. Many other ground-based telescopes and other observations by the space telescope yüzey Hubble yer showed that the object reflects sunlight from its surface. The large luminosity variations of the object concluded that Omwamwi had a long shape and probably reached a conclusion that was not longer than 800 meters.

A recent study in the Astronomical Journal in which some inferences about Omwamwi are not quite correct.

The space telescope ğı Spitzer eskop monitors the asteroids and comets or the heat emitted by them using infrared energy. It can provide more accurate information about the size of the object than optical observations or reflected sunlight. Omwamwi is too unstable for the in Spitzer &, it puts certain limits on the total area of ​​the surface.

Using three different models that provide different assumptions about the composition of the object, in Spitzer bileş has limited the global diameter of Omwamwi to 400, 140 and 100 meters. The big difference between the results is based on the hypotheses about the Omwamwi composition, influencing how Spitzer can be seen in a certain dimension.

Omwamwi was full of surprises from day one, so Professor David Trilling of the University of Northern Arizona cannot expect to show, Spitzer illing. – If Omwamwi is too small to olm Spitzer “it can be recorded, in fact it is a valuable result. "

The new size limits correspond to the latest investigation by the ESA astronomer Marco Micheli. According to them, the small changes in the speed and direction of Omwamwi were caused by the removal of gas. In other words, it acts as a small accelerator leaving the surface of the gas.

Omwamwi also proved to be a little less ordinary comet in the Solar system. The result of degassing suggests that it is made up of frozen gases such as a comet.

Ya Our study also suggests that Omwamwi may be 10 times more reflective in the Solar system than comets (with a higher albedo).

It may change during the albedo 'life' of the comet. As we approach the sun, the ice warms up and turns into gas, sweeps the surface dust and dirt, shows more ice.

Omwamwi traveled through interstellar space millions of years away from the stars that ayda can renew Om the surface. But perhaps it was warm enough to be approaching about five weeks before the Sun opened.


About the Author

Source link