Visualizzazione post con etichetta black hole. Mostra tutti i post
Visualizzazione post con etichetta black hole. Mostra tutti i post
martedì 1 ottobre 2024

# gst: dynamics of pulsating spheres orbiting black holes.

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AA << study the chaotic dynamics of spinless extended bodies in a wide class of spherically symmetric spacetimes, which encompasses bl...
sabato 23 marzo 2024

# astro: black hole portraits will become more frequent

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<< This year marks the fifth anniversary of the release of the first-ever image of a black hole, which revealed the glowin...
sabato 20 gennaio 2024

# gst: the fascinating possibility of two black holes masquerading as one.

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<< a pair of black holes whose mutual attraction is balanced by the cosmic expansion would look the same to a distant obse...
venerdì 9 giugno 2023

# gst: another way for the evaporation of a black hole

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<< The quantum fluctuations that pervade empty space spontaneously give birth to pairs of particles and antiparticles. Ordinarily, the...
lunedì 17 ottobre 2022

# life: a proposito di bizzarri scenari, qui un ipotetico scenario22 dipinto dal reale ...

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img: Congo Square, New Orleans, Louisiana (wikipedia.org) In definitiva qui si configurerebbe un - intrigante assai - scenario c...
giovedì 22 settembre 2022

# life: apropos of quasi-stochastic (bizarre) landscapes in high-dimension, a case of double RAG-time inside a black hole with vortices

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Here a hypotetical bizarre scenario of coexistence of double RAG-time (RAG: Ralph, Al, George) inside a black hole with vortices: (1)   ...
lunedì 19 settembre 2022

# astro: black holes (as Q-ball-type saturons) could admit multi-vortex dynamics

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<< Theoretical physicists argue that black holes admit vortex structures >> Img << Sketch of a black hole end...
giovedì 21 luglio 2022

# life: a proposito di vaticini ...

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a proposito di vaticini (dal lat.  vates «vate» e canĕre «cantare» )... Mr. Mario Draghi, la simmetria rifiutata ...  Simmetrico, purtuttavi...
martedì 19 luglio 2022

# gst: apropos of prolate- oblate spheroid transition, the chaotic behavior of a spinless entity around a black hole.

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AA << investigate the long-term orbital dynamics of spinless extended bodies in Schwarzschild geometry, and show that peri...
sabato 25 giugno 2022

# astro: eight new echoing black hole binaries (in Milky Way)

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<< Scattered across our Milky Way galaxy are tens of millions of black holes—immensely strong gravitational wells of spacetime, from w...
martedì 22 febbraio 2022

# gst: apropos of a immaginary transition (with a tipping point), which simulates the chaotic interactions of three black holes.

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<< The interactions between three bodies such as stars or planets or black holes cannot be predicted with an elegant formu...
lunedì 8 febbraio 2021

# gst; apropos of hair that can be combed, some perturbation fields, along the event horizon of extreme black holes, seem to evolve in time indefinitely

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 <<  black holes can be fully characterized by only three physical quantities: their mass, spin and charge. Since they have no additio...
venerdì 3 aprile 2020

# astro: apropos of elusive predators ... the mid-sized mass black hole

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<< Astronomers have found the best evidence for the perpetrator of a cosmic homicide: a black hole of an elusive class known as "...
domenica 15 settembre 2019

# astro: test the 'no-hair' hypothesis on coalescent black holes (at the ~ 10% or ~ 20% levels)

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<< Agreement between the postinspiral measurements of mass and spin and those using the full waveform supports the hypothesis that the...