The J150052 tidal disruption event was caused by a rapidly spinning intermediate-mass black hole, study finds

The J150052 tidal disruption event was caused by a rapidly spinning intermediate-mass black hole, study finds

Lengthy-term mild curve of J150052 as of 2008. Credit score: Cao et al, 2022

Utilizing NASA’s Chandra and ESA’s XMM-Newton house telescopes, astronomers at Radboud College within the Netherlands and elsewhere have made X-ray observations of a tidal disruption occasion designated 3XMM J150052.0+015452, or J150052 for brief. The outcomes present that J150052 was activated by a quickly spinning intermediate-mass black gap. The discovering was detailed in a paper revealed Nov. 30 on arXiv.org.

Tidal disruption occasions (TDEs) are astronomical phenomena that happen when a star passes shut sufficient to a supermassive black gap and is separated by tidal forces from the black gap, which causes the disruption course of. This tidally disrupted stellar particles begins to rain down on the black gap and radiation emerges from the innermost area of the accrued particles, which is an indicator of the presence of a TDE.

For astronomers and astrophysicists, TDEs are doubtlessly vital probes of sturdy gravity and accretionary physics, offering solutions concerning the formation and evolution of supermassives. black holes.

J150052 was first detected in 2005 as an X-ray supply, throughout XMM-Newton and Chandra observations of the foreground group of galaxies NGC 5813 at a redshift of 0.0064. Its place coincides with the middle of the galaxy SDSS J150052.07+015453.8 with a redshift of 0.145.

Observe-up observations of this supply have discovered it to be a slowly decaying TDE, experiencing a decade-long decay. Some research have recommended that the black gap chargeable for J150052 has a mass of round 100,000 photo voltaic plenty, making it an intermediate mass black gap (IMBH).

Now a workforce of astronomers led by Zheng Cao de Radboud presents the outcomes of his examine that affirm the IMBH speculation.

“On this paper, we current and analyze all publicly accessible XMMNewton and Chandra knowledge from the J150052 tidal disruption occasion since 2008, obtained throughout its decade-long decay. We match the X-ray spectra with the skinny disk mannequin (Wen et al. al. 2020, 2021), thereby constraining the mass and spin of the black gap to a better precision than was beforehand doable,” the researchers wrote.

The black gap mass for J150052 was measured to be about 200,000 photo voltaic plenty. The dimensionless spin parameter of the black gap was calculated to be not less than 0.97. Subsequently, the researchers concluded that J150052 is a fast-spinning, and maybe virtually excessive, IMBH.

Mass and spin measurements point out that J150052 didn’t type anyplace close to its present mass. Subsequently, the authors of the article assume that the black gap will need to have accrued to its present mass in episodes through which the angular momentum vectors of the spin and the accrued materials had been aligned.

Moreover, spectral analyzes of J150052 recommend that it undergoes a transition throughout its decay, quenching the corona because the mass accretion fee decreases from super-Eddington to Eddington ranges. The examine additionally discovered that J150052’s corona is optically thick and heat.

Summarizing the outcomes, the researchers famous that their findings display the potential of utilizing the X-ray spectra of TDEs to seek out IMBHs and measure their plenty and spins.

Extra info:
Z. Cao et al, The fast-spinning intermediate-mass black gap 3XMM J150052.0+015452, arXiv (2022). DOI: 10.48550/arxiv.2211.16936

Newspaper info:
arXiv


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Quotation: Tidal disruption occasion J150052 was brought on by a quickly rotating intermediate-mass black gap, finds examine (Dec 8, 2022) retrieved Dec 9, 2022 from https://phys.org/information/2022 -12-tidal-disruption-event-j150052-quickly.html

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