Impressive image of mammoth star

The Hubble telescope has recently captured a breathtaking picture of a pair of giant stars, WR 25 and Tr16-244, located in the open star cluster Trumpler 16. This star cluster is associated with the Carina nebula, which is a giant dusty gas It is located about 7500 light years from Earth.

The Carina Nebula contains several extremely hot stars, including two stars and the famous green star Eta Cariane with the strongest brightness confirmed so far. Generating huge amounts of heat, these stars are brilliant, releasing most of the radiation in the form of ultraviolet rays and green. They are so "powerful" that they burn their hydrogen energy faster than any other form, leading to their "fast, young and dead" lifestyles .

WR 25 is the brightest star, located near the center of the image. Its neighbor, star Tr16-244, is the third brightest star, above the left of WR 25. The second brightest star, on the left of WR 25, is a star closer to Earth than the star. Carina vein. Stars like WR 25 and Tr16-244 are relatively rare compared to other cold stars. They attract astronomers because they are related to star-forming nebulae, and affect the structure and development of galaxies.

WR 25 seems to be the brighter and more interesting star among the two stars. Its nature was revealed only two years before a group of international astronomers led by Roberto Gamen (at the time he worked for Universidad de La Serena in Chile) discovered that it was consists of at least two stars. The larger star is the Wolf-Rayet star, which can be 50 times heavier than the Sun. It loses mass rapidly through stellar winds, stellar winds can remove most of the rich hydrogen layer at the top. While a companion is probably only half the size of Wolf-Rayet, and revolves around it with a 208-day cycle.

On the photo are a pair of giant stars, WR 25 and Tr16-244, located in the star cluster opening Trumple 16. This cluster is associated with the Carina Nebula, which is a great gas-filled cauldron located 7500 light-years from Earth Carina constellation. WR 25 is the brightest star near the center of the image. Its neighbor, star Tr16-244, is the third brightest star, above the left of WR 25. The second brightest star, on the left of WR 25, is a star closer to Earth than the star. Carina vein. (Photo: NASA, ESA, and J. Mael Apellániz (Instituto de Astrofísica de Andalucía, Spain))

Giant stars are often formed in dense clusters. Usually single stars are quite similar in nature, so it is difficult to distinguish them into individual objects thanks only to the telescope. Hubble telescope observations have revealed that the Tr16-244 system is in fact a three-part star. Two of them are so close together that they look like a homogeneous object, but the Hubble telescope's modern camera has shown that they are actually two objects. The third star takes tens of thousands or hundreds of thousands of years to orbit the two stars. The brightness and proximity of these elements in the three-star system and the binary star system make it more challenging to discover the properties of giant stars.

WR 25 and Tr16-244 are sources of radiation that form giant gas droplets in the Carina Nebula, which gradually or slightly enter space while promoting the formation of new stars within the nebula. Radiation is also thought to be causing the air droplet to have an unusual shape, which is clearly shown in previous photographs Hubble captured. These droplets look like hands with a challenging finger pointing straight towards WR 25 and Tr16-244.

The new observation was obtained by researchers from astronomers from research institutes in the United States, Chile, Spain and Argentina, under the direction of the Institut de Astrofísica de Andalucía Jesús Maíz Apellániz in the West. Spain They used Hubble telescopes in conjunction with terrestrial observatories in Spain, Chile and Argentina to build a comprehensive observation list of all the giant stars found in the galaxy by wavelengths. see.