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Astronomers discover 2000 year old supernova remnant



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Astronomers discover 2000 year old supernova remnant

Near the center of the globular cluster Messier 22, a team of scientists has discovered the remains of a supernova. Credit: ESA / Hubble and NASA, F Göttgens (IAG)

For the first time, a European research group with the participation of the University of Goettingen found supernova remnants in the galaxy invasion ball. The residue is located near the center of the globular cluster Messier 22 and has recently seen with the use of modern tools. The results will be published in the journal Astronomy and Astrophysics.


New hydrogen explosion on the surface of the star, which makes it much brighter. Remains form luminous nebula. "The position and brightness remains match entries from 48 BC in ancient Chinese astronomers collection of observations, "says first author Fabian Göttgens from the Institute of Astrophysics at the University of Göttingen. He performed this Ph.D. research in the field of stellar astrophysics research group led by Professor Dreizler. "They must have seen the original nova in the same place," he adds. This means that current measurements confirm one of the oldest observations of events outside our solar system.

Globular clusters with & # 39 are large, spherical clusters of hundreds of thousands of very old stars orbiting together around their home galaxy. There are 150 known globular clusters that orbit the Milky Way. Messier 22 & # 39 is one of these star clusters. It is located in Suzorye & # 39; and Sagittarius, in the direction of the Milky Way's center. It was noted, along with two dozen other globular clusters with the MUSE instrument on ESO's Very Large Telescope in Chile. MUSE tool was developed with the participation of the Institute of Astrophysics, which is funded by the BMBF. This not only creates an image but at the same time splits the starlight color by measuring the brightness of stars, depending on the color. This makes it particularly suitable for the search of nebulae, which are often only glow a certain color, usually red.

Again discovered a new star form remains red radiant gaseous nebula hydrogen and other gases, which has a diameter of about 8,000 times greater than the distance between the earth and sun. Despite its size, the nebula is relatively easy, with a mass about 30 times larger than Earth, since the gas was dispersed by the explosion.

  • Astronomers discover 2000 year old supernova remnant

    This Chinese text (marked in orange) with an ancient collection of observations (https://ctext.org/) describes the impact of the original Nova Chinese astronomers Credit OK, 48: ctext.org/ Chinese Text Project

  • Astronomers discover 2000 year old supernova remnant

    The telescope is used to view the remainder of the 2000 summer new star: the most powerful laser guide star system in the world, showing its four laser beams from the system in the main telescope at the 4 VLT (Very Large Telescope). Credit: ESO / F Kamphues


Image: Hubble snaps a crowded cluster


Additional Information:
Fabian Göttgens et al. The opening of the new balance of old stars in the globular cluster M22 Galactic. Astronomy and Astrophysics (2019). DOI: 10,1051 / 0004-6361 / 201935221, Preprint: Arxiv: 1904,11515: https://arxiv.org/abs/1904.11515

provided
University of Göttingen

citation:
Astronomers discover 2000 year old supernova remnant (2019, April 30)
received April 30, 2019
by https://phys.org/news/2019-04-astronomers-year-old-remnant-nova.html

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