New Nebula Discovered By Astronomers; New Kind Of Celestial Features Unearthed

0
3
New Nebula Discovered By Astronomers; New Kind Of Celestial Features Unearthed

|

The universe is made up of so many celestial objects like stars, planets, nebulae, and so on. Interestingly, astronomers have discovered a new type of nebulae called galactic emission nebulae. To note, nebulae are mainly made up of gas that’s lit up with radiation from nearby stars. Nebula is considered one of the most beautiful forms in nature.

New Nebula Discovered By Astronomers With Unique Celestial Features

Astronomers Discover New Nebula

The team of astronomers says the new nebulae were discovered around binary stars, giving them the name of galactic emission nebulae. Particularly, the binary star YY Hya was the center of the new nebula discovery. Going into the details, the astronomers discovered that YY Hya is a periodic variable star consisting of a K dwarf star and a hot white dwarf (WD) partner.

Stefan Kimeswenger from the Department of Astro and Particle Physics at Innsbruck University, Austria, presented the new nebula discovered in the study titled ‘YY Hya and its interstellar environment’. Here, the study explains that the binary star underwent a red giant phase when it released its outer layers of gas into space, lighting up with stellar radiation of dispersed gas.

“Toward the end of their lives, normal stars inflate into red giant stars. Since a very large fraction of stars is in binary pairs, this affects the evolution at the end of their lives. In close binary systems, the inflating outer part of a star merges as a common envelope around both stars. However, inside this gas envelope, the cores of the two stars are practically undisturbed and follow their evolution like independent single stars,” Kimeswenger explained in a press release.

New Nebula Discovered With New Features

As one can see, the vast envelope is key here. And this was possible because of previous discoveries that go back 20 years. Interestingly, a group of French and German amateur astronomers was examining digitized historical astronomical images from the 1980s. As a matter of mere observation, they fragment of a nebula.

The record was later taken to the team of astronomers from the Innsbruck University, who found binary stars in a similar arrangement, but it was never with a fully developed envelope. This was also because a full envelope was never seen because of its massive size.

Particularly with the new nebula, the envelope is said to be over 15 light-years across. Astronomers believe it would be disrupted by the other stars in the universe. In the case of the YY Hya, it is above the galactic plane that is undisturbed by the other gas clouds.

“The diameter of the main cloud is 15.6 light-years across, almost 1 million times larger than the distance of the earth to the sun and much larger than the distance of our sun to its nearest neighboring star,” explains Kimeswenger.

“Moreover, fragments as large as 39 light-years apart have also been found. Since the object lies slightly above the Milky Way, the nebula was able to develop largely undisturbed by other clouds in the surrounding gas,” the statement reads. Ultimately, this shows us that there’s still a whole lot more of the universe that we’re simply unaware of.

(source)

Best Mobiles in India

  • Apple iPhone 13 Pro Max

    1,29,900

  • Vivo X70 Pro Plus

    79,990

  • OPPO Reno6 Pro 5G

    38,900

  • Apple iPhone 12 Pro

    1,19,900

  • Redmi Note 10 Pro Max

    18,999

  • Motorola Moto G60

    19,300

  • Xiaomi Mi 11 Ultra

    69,999

  • Samsung Galaxy S20 Ultra

    86,999

  • Xiaomi Mi 10i

    20,999

  • Samsung Galaxy Note20 Ultra 5G

    1,04,999

  • OnePlus 9

    49,999

  • Redmi Note 10 Pro

    15,999

  • Samsung Galaxy F62

    20,449

  • Redmi 9A

    7,332

  • OPPO F19

    18,990

  • Apple iPhone SE (2020)

    31,999

  • Samsung Galaxy S20 Plus

    54,999

  • OPPO F15

    17,091

  • Vivo S1 Pro

    17,091

  • Realme 6

    13,999

  • Realme GT 2


    31,570

  • Oppo A11s


    11,838

  • Tecno Pova 5G


    22,809

  • Xiaomi 12X


    37,505

  • Xiaomi 12 Pro


    55,115

  • iQOO 9 Pro


    58,999

  • iQOO 9


    46,999

  • iQOO U5


    15,300

  • Realme GT 2 Pro


    45,760

  • iQOO Neo 5S


    32,100

Story first published: Sunday, January 9, 2022, 8:00 [IST]

LEAVE A REPLY

Please enter your comment!
Please enter your name here