Black Hole as a Consideration in Explanation for a Recently Detected Unusual FRB Pulse from Outer Space, In Regard to Recent Science-Related News Articles on a Mysterious Per .2-millisecond (two-tenths of one-thousandth of one second) Recurrent FRB Pulse Resembling a Heartbeat Pattern, Recurring at Fixed Intervals Over the Unprecedented Total Duration of 3 Seconds, and of the Source Energy Output of Hundreds of Millions of Suns, https://news.mit.edu/2022/astronomers-detect-radio-heartbeat-billions-light-years-earth-0713
On 07-19-2022 I read a science news article on the mysterious .2-second, recurrent FRB resembling a heartbeat pattern and lasting for a record total duration for an FRB of 3 seconds. The article reported, in paraphrase of it, that the energy source of that FRB would have to have been that of hundreds of millions of solar masses, and that pulsar or magnetar neutron stars that otherwise could explain the source of past FRBs did not fit as sources because of their single-digit masses, equated with energy magnitude, recurrent heartbeat pattern and comparative, to past FRBs, extreme duration. I attempted to save the article, to which I posted the following comment; however, the article did not save. So I tried to research it online but could not find an article mentioning the reference to the hundreds of millions of solar masses, but I did find a reputable science article on the same FRB without reference to the said solar-mass energy, whose click-on hyperlink is posted at the conclusion of this herein Twitter post of mine. The comment I posted was: “Celestial FRBs (fast radiofrequency or radio-wavelength bursts) associated with the energy output of hundreds of millions of times of the energy magnitude of or output produced by our sun, our solar-planetary system's star, of .2-milliseconds and repeating for three seconds could only be produced by a supermassive black hole, of equivalence or greater in mass, of some kind and in some way, and nothing else.” (I questioned the term .2 milliseconds (two-tenths of one-thousandth of a second for the FRB in my aforementioned quoted comment, a term I saw used in the numerous news stories I read on this particular FRB before, in that article, and after, but a term that I thought could have been incorrectly used in its application and meant to refer to decimal or fractional seconds as of intervals of two-tenths of a second per repetition of the FRB). I thought that the scientist, if not that scientist's public relations or communications aide or secretary, who communicated the news on this FRB to the mass news media may have reported that the pulse was a millisecond or so many milliseconds in length and repeated every .2 seconds over the total time span of its occurrence of 3 seconds.) Supermassive black holes with such magnitudes of solar masses are well known to astronomers and human astronomy to exist.
In afterthought, I add the caveat that there is a weak outside chance that a small galaxy or large star cluster (a globular star cluster) with hundreds of millions of solar masses, rotating globularly as a unit, at the extreme speed of a pulsar or magnetar neutron star, or a black hole, that could be the energy source and cause of this particular heartbeat-pattern repeating FRB, a weak chance because neither a small galaxy nor globular cluster of stars has ever shown anything close to the observed necessary extreme spin velocity to generate the millisecond/decimal-second time of any FRB, including the concerned FRB, whereas pulsar and magnetar neutron stars commonly have and so have black holes, some black holes of which have been radio-telescopically clocked to spin at half the speed of light, circa 335,000,000 miles per hour. Nor has any galaxy, small or large, nor globular star cluster made up of only or primarily either or a mix of pulsar and/or magnetar neutron stars, or all variety of neutron stars, ever been reported to have been observed in the astronomical observations of astronomy. Among other explanations as to how a black hole or black holes could produce this and some of the other FRBs, is the one that when two or more black holes merge, they probably generate more than outwardly going gravitational shock waves, insofar as their individually orbiting huge and powerful accretion disks of volatile chemical gas and particulate matter, and photospheres, most probably collide on the way toward and during the process of their merger and ignite or trigger a chaos of astronomically large and powerful explosions of all possible kinds, possibly including nuclear explosions, that as a result radiate their own concomitant, with gravitational waves, radio frequency or wavelength blasts, and/or nuclear explosion-related EMP (electromagnetic-pulse) blast/s, into and through the surrounding outer space of the universe. Supermassive black holes, of hundreds of millions to billions of solar masses in magnitude, might have gravitationally entrained orbiting satellites, beyond their accretion disks and toruses, of stars, with or without celestial-body solar systems, whose stars might include neutron stars, maybe pulsars and/or magnetars, and binary, or multisystem, stars, that are absorbed in, and smash up during, the black hole mergers and in some situations are cause for or contributors of cause for the concerned FRBs. Also, like their pulsar and magnetar neutron-star celestial cousins, black holes may eject or blast out from their magnetic poles into outer space huge and powerful bursts of electromagnetic radio-wave beams under some circumstances that may be the source of FRBs.
References
https://news.mit.edu/2022/astronomers-detect-radio-heartbeat-billions-light-years-earth-0713,
https://www.newscientist.com/article/dn8576-fast-spinning-neutron-star-smashes-speed-limit/
- https://www.universetoday.com/109308/how-fast-do-black-holes-spin/
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