Good current paper on mass / luminosity and rotation curves
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From: BURT on 10 Jul 2010 15:07 On Jul 9, 10:35 am, "Y.Porat" <y.y.po...(a)gmail.com> wrote: > On Jul 2, 3:48 pm, Sam Wormley <sworml...(a)gmail.com> wrote: > > > > > > > On 6/30/10 12:52 PM, dlzc wrote: > > > >http://arxiv.org/abs/1005.3154 > > > > Provides a lot of background into how Dark Matter is arrived at (as a > > > free parameter, whose spatial distribution is far from simple, > > > depending on the M/L modelled internal to the target galaxy). > > > > David A. Smith > > > David--The case for the existence of dark matter is strong. > > There is copious observational data showing way more gracvitational > > influencve than can be accounted for bu baryonic matter. Background: > > http://en.wikipedia.org/wiki/Dark_matter > > > Quoting from Ned Wright's > > http://www.astro.ucla.edu/~wright/cosmology_faq.html#DM > > > What is the dark matter? > > > "When astronomers add up the masses and luminosities of the stars near > > the Sun, they find that there are about 3 solar masses for every 1 solar > > luminosity. When they measure the total mass of clusters of galaxies and > > compare that to the total luminosity of the clusters, they find about > > 300 solar masses for every solar luminosity. Evidently most of the mass > > in the Universe is dark. If the Universe has the critical density then > > there are about 1000 solar masses for every solar luminosity, so an even > > greater fraction of the Universe is dark matter. But the theory of Big > > Bang nucleosynthesis says that the density of ordinary matter (anything > > made from atoms) can be at most 10% of the critical density, so the > > majority of the Universe does not emit light, does not scatter light, > > does not absorb light, and is not even made out of atoms. It can only be > > "seen" by its gravitational effects. This "non-baryonic" dark matter can > > be neutrinos, if they have small masses instead of being massless, or it > > can be WIMPs (Weakly Interacting Massive Particles), or it could be > > primordial black holes. My nominee for the "least likely to be caught" > > award goes to hypothetical stable Planck mass remnants of primordial > > black holes that have evaporated due to Hawking radiation. The Hawking > > radiation from the not-yet evaporated primordial black holes may be > > detectable by future gamma ray telescopes, but the 20 microgram remnants > > would be very hard to detect". > > ---------------------- > th e mass of the single photon that i found > is about > exp-90 Kilograms > it is based on Plank time emission !!!!! > iow > Black matter might be > th e basic single photons !!! > that at the same time > moves naturally in a closed circle > ie > it can do a double movement > 1 > in a small or big circle > 2 > the center of that circle > moves in addition in a straight line > perpendicular to the plan of that circle -- > (all together a hell ix movement !!!)) > > TIA > Y.Porat > ------------------------------- Hide quoted text - > > - Show quoted text - There is no galactic rotation. There is orbits of stars. Mitch Raemsch
From: dlzc on 10 Jul 2010 17:14 Dear Y.Porat: On Jul 9, 7:51 pm, "Y.Porat" <y.y.po...(a)gmail.com> wrote: > On Jul 9, 7:48 pm,dlzc<dl...(a)cox.net> wrote: > > > Dear Y.Porat: > > > On Jul 9, 10:23 am, "Y.Porat" <y.y.po...(a)gmail.com> wrote: > > > > On Jun 30, 7:52 pm,dlzc<dl...(a)cox.net> wrote: > > > > >http://arxiv.org/abs/1005.3154 > > > > > Provides a lot of background into how Dark > > > > Matter is arrived at (as a free parameter, > > > > whose spatial distribution is far from > > > > simple, depending on the M/L modelled > > > > internal to the target galaxy). > > > > -------------------- > > > see My 'Circlon'' idea !!! > > > Y.Porat > > > --------------------- > > > Doesn't work, even if light had mass. The mass > > is bound to galaxies, and there is not enough > > gravity to do that far from black holes. > > ---------------------- > YOU HAVE TO DECIDE ONCE AND FOR ALL > WHETHER TH EPHOTON HAS MASS OR NOT > OR ELSE YOU CANT MAKE REAL ADVANCE !!! DO NOT SHOUT. Your circlons still travel at c. They cannot be Dark Matter. That is my total concern. If I were trying to reconcile my utter disdain of Dark Matter, I certainly would not choose a model of light that is obviated by all the other most successful physics theories we have. Hard enough to get people to look at the band-aid that is Dark Matter, without bringing in *your* personal kook-ese. I don't mind kook-ese, as long as I have enough milk. I don't. David A. Smith
From: Y.Porat on 11 Jul 2010 23:14 On Jul 10, 11:14 pm, dlzc <dl...(a)cox.net> wrote: > Dear Y.Porat: > > On Jul 9, 7:51 pm, "Y.Porat" <y.y.po...(a)gmail.com> wrote: > > > > > On Jul 9, 7:48 pm,dlzc<dl...(a)cox.net> wrote: > > > > Dear Y.Porat: > > > > On Jul 9, 10:23 am, "Y.Porat" <y.y.po...(a)gmail.com> wrote: > > > > > On Jun 30, 7:52 pm,dlzc<dl...(a)cox.net> wrote: > > > > > >http://arxiv.org/abs/1005.3154 > > > > > > Provides a lot of background into how Dark > > > > > Matter is arrived at (as a free parameter, > > > > > whose spatial distribution is far from > > > > > simple, depending on the M/L modelled > > > > > internal to the target galaxy). > > > > > -------------------- > > > > see My 'Circlon'' idea !!! > > > > Y.Porat > > > > --------------------- > > > > Doesn't work, even if light had mass. The mass > > > is bound to galaxies, and there is not enough > > > gravity to do that far from black holes. > > > ---------------------- > > YOU HAVE TO DECIDE ONCE AND FOR ALL > > WHETHER TH EPHOTON HAS MASS OR NOT > > OR ELSE YOU CANT MAKE REAL ADVANCE !!! > > DO NOT SHOUT. > > Your circlons still travel at c. They cannot be Dark Matter. That is > my total concern. >---------------------- did i say anything about the velocity of the Circlon ??!! i said that its motion is a double motion 1 the velocity in its circle 2 the velocity of the plan in which it moves **perpendicular to that plan** althogether a hellix !! (you see i dont shout now ... (:-) so onlynoe i suggest a velocity for it it is velocity desctibed i part 2 above iow thevelocity perpendicular toth eplan of its circula motion ie the velocity in which that ;hellix' moves is c !!! so now i just wonder if that velocity **in that above circle** (of the hellix)-- might be Pai times c ?? is it better for your findings ?? or may be no connection between velocity 1 and velocity 2 ??? 3 how does your dark matter makes any attraction?? TIA Y.Porat -------------------------- > If I were trying to reconcile my utter disdain of Dark Matter, I > certainly would not choose a model of light that is obviated by all > the other most successful physics theories we have. Hard enough to get > people to look at the band-aid that is Dark Matter, without bringing > in *your* personal kook-ese. > > I don't mind kook-ese, as long as I have enough milk. I don't. > > David A. Smith
From: dlzc on 13 Jul 2010 10:25
Dear Y.Porat: On Jul 11, 8:14 pm, "Y.Porat" <y.y.po...(a)gmail.com> wrote: > On Jul 10, 11:14 pm,dlzc<dl...(a)cox.net> wrote: > > On Jul 9, 7:51 pm, "Y.Porat" <y.y.po...(a)gmail.com> wrote: > > > On Jul 9, 7:48 pm,dlzc<dl...(a)cox.net> wrote: > > > > On Jul 9, 10:23 am, "Y.Porat" <y.y.po...(a)gmail.com> wrote: > > > > > On Jun 30, 7:52 pm,dlzc<dl...(a)cox.net> wrote: > > > > > >http://arxiv.org/abs/1005.3154 > > > > > > > Provides a lot of background into how Dark > > > > > > Matter is arrived at (as a free parameter, > > > > > > whose spatial distribution is far from > > > > > > simple, depending on the M/L modelled > > > > > > internal to the target galaxy). > > > > > > -------------------- > > > > > see My 'Circlon'' idea !!! > > > > > Y.Porat > > > > > --------------------- > > > > > Doesn't work, even if light had mass. The mass > > > > is bound to galaxies, and there is not enough > > > > gravity to do that far from black holes. > > > > ---------------------- > > > YOU HAVE TO DECIDE ONCE AND FOR ALL > > > WHETHER TH EPHOTON HAS MASS OR NOT > > > OR ELSE YOU CANT MAKE REAL ADVANCE !!! > > > DO NOT SHOUT. > > > Your circlons still travel at c. They cannot be Dark > > Matter. That is my total concern. > >---------------------- > > did i say anything about the velocity of the Circlon ??!! > i said that its motion is a double motion You have not said how it knows to be one or the other. .... > how does your dark matter makes any attraction?? Via its mass, presumably. David A. Smith |