21Sep 2022 by Nigel Fleming No Comments

linkedin post 2021-06-29 03:46:34

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BRIGHT ACCRETION. “By estimating the total energy radiated by AGN over their whole lifetime, it can be shown that nearly all the mass seen in dormant BHs today can be accumulated during the periods of observed bright AGN activity. This implies that there is not a great deal of room for ‘dark’ or obscured accretion.” (BH = black hole; AGN = active galactic nuclei). https://lnkd.in/d9JV8md View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments

linkedin post 2021-06-28 04:21:51

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Mr. Praline: (yelling and hitting the cage repeatedly) 'ELLO POLLY!!!!! Testing! Testing! Testing! Testing! This is your nine o'clock alarm call!" "(Takes parrot out of the cage and thumps its head on the counter. Throws it up in the air and watches it plummet to the floor.) https://lnkd.in/dt_3NP6 View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments
linkedin post 2021-06-28 04:16:58

linkedin post 2021-06-28 04:16:58

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SPACE IS BUBBLING WITH ENERGY. “Despite rejection by the scientific community, harnessing zero-point energy remains an interest of research by non-scientific entities, particularly in the US where it has attracted the attention of major aerospace/defence contractors and the U.S. Department of Defense as well as in China, Germany, Russia and Brazil.” (Teslas’s dream of free energy from the ether). https://en.m.wikipedia.org/wiki/Zero-point_energy View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments

linkedin post 2021-06-28 04:13:12

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UNCERTAINTIES. “This can be interpreted as evidence for co-evolution between the host galaxies and their BHs, but some observations of BH growth and star formation in individual objects appear to contradict the picture of simple one-to-one co-evolution over time. Thus the details of BH and galaxy co-evolution remain unclear.” (BH = black hole). https://lnkd.in/d9JV8md View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments

linkedin post 2021-06-30 04:01:58

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“THE GOAL of this work is to explore the interplay of different physical processes that determine the masses of seed BHs, the triggering of AGN activity and the efficiency of gas accretion during the active phases of BHs, with the aim of understanding the physical origin of the observed downsizing trend in BH growth.” (BH = black hole; AGN = active galactic nuclei). https://lnkd.in/d9JV8md View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments

linkedin post 2021-07-02 04:02:50

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STELLAR SEEDING. Our model “does not produce enough very luminous QSOs at high redshift (z > 5). Our third, main conclusion is that a heavy seeding mechanism for black holes provides a physically motivated way to increase the predicted number density of very luminous QSOs at high redshift, in line with observations.” (QSO = Quasi Stellar Objects). https://lnkd.in/d9JV8md View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments

linkedin post 2021-06-30 04:01:00

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BLACK HOLE ACCRETION. “However, the observational situation remains murky. Observational studies have repeatedly failed to find evidence for a statistically significant enhancement of merger-related signatures, such as close pairs or morphological disturbance.” https://lnkd.in/d9JV8md View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments

linkedin post 2021-07-02 04:00:20

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TWO FACTORS. “Our results therefore favour a ‘hybrid’ picture in which major merger events are the main driver of luminous AGN, especially at high redshift, while disc instabilities are the main mechanism powering moderately luminous Seyfert galaxies at low redshift.” (AGN = active galactic nuclei). https://lnkd.in/d9JV8md View in LinkedIn
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