5 Facts about LAMOST J0240+1952, the Fastest Rotation Star

5 Facts about LAMOST J0240+1952, the Fastest Rotation Star

5 Facts about LAMOST J0240+1952, the Fastest Rotation Star

White Dwarf Star Illustration


Netgenz - Sains | A surprising new discovery arrives from the world of astronomy. As quoted by Science News, some astronomers have succeeded in finding the star with the fastest rotation in the universe. This discovery occurred during the night of August 7, 2021. These researchers then conducted scientific publicity on August 26 at arXiv with the title Found: a rapidly spinning white dwarf in LAMOST J024048.51+195226.9.

The discovery of this star is quite surprising because this star has the fastest rotation in the universe. Please read the lines of evidence regarding the latest discovery of this star.

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1. 1x rotation only takes 25 seconds



LAMOST J0240+1952 holds the record for being the fastest-rotating star in the universe, for now with an exact rotation speed of 24.93 seconds. The star, which has a distance of 2,000 light-years, beats the record of the CTCV star J2056-3014 which rotates in 29.61 seconds.

In addition, there is a blue star HD 49798 which has a faster rotation but the fast rotation character is not bright. Based on recent research, some astronomers think that HD 49798 is a neutron star, not a white dwarf like LAMOST J0240+1952.

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2. The speed of rotation is affected by the red dwarf next to it



The red dwarf that surrounds it, is responsible for the rotational speed of the LAMOST J0240+1952. The gas from the red dwarf next to it fell into the LAMOST J0240+1952 making it spin faster.

It is the same as when waterfalls on a waterwheel, the wheel will move faster because of the force of the gas. This is what makes the LAMOST J0240+1952 spin very fast.

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3. Being in the form of Aries



LAMOST J0240+1952 is in the Aries form, precisely in the Northern Hemisphere between Pisces in the west and Taurus in the east. The Aries form is best seen at night in December, around 9 p.m. local time.

Alpha, Beta, and Gamma Arietis are the three most obvious stars in this form. Alpha Arietis, also known as Hamal, is the brightest red giant in this form.

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4. LAMOST J0240+1952 viewed with HiPERCAM high-speed camera and mounted on Gran Telescopio Canarias (GTC)



The assessment that was carried out in August 2021 was carried out using a high-speed CCD camera, namely HiPERCAM. This camera is mounted on the Gran Telescopio Canarias (GTC).

Gran Telescopio CANARIAS (GTC), is the largest and most advanced Spanish telescope operated by the Instituto de Astrofísica de Canarias (IAC). The telescope is at the Roque de los Muchachos Observatory on the island of La Palma, in the Canaries, Spain. GTC is the largest single aperture optical telescope in the world.

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5. Discovered by some astronomers from famous universities



This discovery was initiated by Ingrid Pelisoli of the University of Warwick, UK. He is not alone, this discovery is a collaboration of several researchers. Pelisoli was accompanied by Thomas Richard Marsh from a similar department at the University of Warwick.

In addition, there are Alex J. Brown, Vik S. Dhillon, Martin J. Dyer, Philip Kerry, Stuart P. Littlefair, Steven G. Parsons, D. I. Sahman, and James F. Wild from The University of Sheffield, England. From the University of Cambridge represented by Elmé Breedt.

Not only from England, but Pelisoli also took researchers from the Instituto de Astrofísica de Canarias, Spain, namely Vik S. Dhillon and Matthew J. Green from Tel Aviv University, Israel.

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