July 1, 2013

Competing Black Hole Jet Origins; models for Gamma Ray Burst?

Filed under: Letters from Ionia — Tags: , , — zankaon @ 2:56 pm

Thermodynamics: heat (energy) flows from hot to cold. For BH engine, is there only one way out for energy – via polar vortices? From vortical wall energy density surface and BH interior perhaps, and even from any infalling mass? For galactic BH, perhaps not much ongoing infalling mass, yet continuous beaming? Would rebound off some vortical wall energy density surface seem less likely? Thus an energy source other than infalling mass seems reasonable. Also collimation of jet would suggest a very deep origin for energy of such beam.For ~20 km (?) diameter stellar BH, 10 -13 of radius, would represent, and be, ~1-10 Angstrom. But a few Angstroms is energy level of only the chemical bond. Would perhaps a radius of ~10 -30 (or perhaps ~10-15  cm?) be closer to nucleosynthesis NS energy density levels? Would this also be consistent with modeled inner cone component of GRB 080319B? Would energy densities be so high (but not high enough to be from gravitational collapse alone?) as to reach nucleosynthesis energy densities (~10degrees °K)? Might there be bulk internal circulation

(see BH figure at for BH, resulting in inward spiraling on inner aspect of respective vortices; giving an idealized model of colliding (merging?) beams (accelerator?), which give rise to uni-directed jet? Might jet outflow be new matter and gamma radiation from ongoing BB scale nucleosynthesis?

Might vortices wobble, under ambient heterogeneity, thus might their apices (cusps) wander or spiral about each other? Thus only intermittent alignment of beams? Beams ‘exploring’ configuration or phase space, changing very rapidly; eventually (how long, in 3-dimensional simulation?) resulting in beam alignment? Thus no need for external nor internal aggregated mass inward spiraling, as etiology for GRB? Over age of universe, might one have any significant contributions to mass re-distribution and thus curvature change, such as for voids?

Might coarser scale SN nucleosynthesis energy level process be similar in supernova implosion and subsequent explosion; just down to any SN nucleosynthesis energy scale? 1 erg ~1012 ev, and 107 ergs ~1 Joule. Or for compact object formation, might one have just a bounce off energy density surface; hence no BB like nucleosynthesis, nor gamma radiation, and thus no GRB for latter type SN? Might BH formation just simply result from sufficient larger mass density?

Since supernovae don’t generate much gamma rays; thus a higher energy source for GRB, such as perhaps associated with energy scale nucleosynthesis (~109 degrees kelvin) with copious gamma rays?) ?

Might pressure of alleged BH plasma contribute significantly (but off axis) to stress tensor, and hence to gravitational potential (i.e. curvature) and to gravitational red shift? For a gas (and plasma), for such smaller volume galactic BH, there would be no limit to pressure increase.Thus consistent with a very high temperature and energy density, either for a 100 solar mass luminous star, or for a 2 B solar mass dark star. Thus might a random walk within a more centralized volume result eventually in egress through a transient vortical vent? Thus might a pressure argument alone be sufficient to conclude that the origin of a BH jet is from within such black hole? Also is venting inevitable, based on thermodynamics (entropy) considerations? But what about gamma rays of GRB; isn’t a higher energy density than that of a supernova, required?

More specifically, might one have a scenario of a vortical cusp bouncing off an energy density surface? But then higher energy scale than that for BB NS), and diverted off axis transiently? Then for a more central volume of assumed nucleosynthesis energy density, heterogeneous in regards to pressure and temperature, might changing conditions, such as pressure, turbulence etc.,  give rise to transient disruption and opening of such vortical cusp, with egress of BB matter and gamma radiation; resulting in GRB jet formation? Would such variant scenario seem consistent with a mono-polar jet; whereas colliding accelerator beams’ basic model (see above) of GRB jets’ origin, might seem to give bipolar jets? Distinguished by any afterglow observation of nearby GRB? Also if jets originate from within a BH, then wouldn’t this be consistent with no horizon; hence also consistent with acoustic/optical BH model (adapted to polar vortex) not having a horizon?  see Oct 1, 2014 update for black hole thermodynamics and gamma ray burst. TMM


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