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Italia and Russia at Dubna Round Table 4 Black Holes in Mathematics and Physics

Italia and Russia at Dubna Round Table 4 Black Holes in Mathematics and Physics December 15-18, 2011. Small , dark, and heavy: But is it a black hole ? Trust but verify!. Plamen Fiziev , Dmitrii Shirkov BLTF, JINR, Dubna. Black Holes. The term “Black Hole” in GR:

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Italia and Russia at Dubna Round Table 4 Black Holes in Mathematics and Physics

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  1. Italia and Russia at Dubna Round Table 4 Black Holes in Mathematics and Physics December 15-18, 2011

  2. Small, dark, and heavy: But is it a black hole?Trust but verify! PlamenFiziev, DmitriiShirkov BLTF, JINR, Dubna

  3. Black Holes The term “Black Hole” in GR: Born on 29 December 1967 West Ballroom, NY Hilton Hotel by John Wheeler (09.06.1911-13.04.2008)

  4. “This innocent question is more subtle than one might expect, and the answer depends very much on whether one is thinking as an observational astronomer, a classical general relativist, or a theoretical physicist.” Astronomers have certainly seen things that are small, dark, and heavy. Classical general relativist: Eternal black holes certainly exist mathematically. Theoretical physicist: We have not seen direct observational evidence of the event horizon. The mathematical solutions suffer essentialphysical shortcomings ! Visser M, Barcelo C, Liberati S, Sonego S: gr-qc/0902.0346 Small, dark, and heavy: But is it a black hole?

  5. Roy Patrick Kerr: arXiv:0706.1109, in “The Kerr Spacetime", Eds D.L. Wiltshire, M. Visser and S.M. Scott, Cambridge Univ. Press,2009. “…However, the Kruskal extension has no application to a real black hole formed by the collapse of a spherically symmetric body and the same is true for Kerr. … What I believe to be more likely is that the inner event horizon never actually forms. … Many theorems have been claimed stating that a singularity must exist if certain conditions are satisfied, but they all make assumptions that may not be true for collapse to a black hole.” PRL, 28, 452 (1972) Ya.B. Zeldovich, Phys. Lett. A 59, 254 (1976); Zh. Eksp. Teor. Fiz. 72, 18 (1977). Proton decay can be mediated by a virtual BH. According to common belief, the decay/evaporation of BHs does not conserve any global U(1)-quantum numbers and, in particular, baryonic, B, and leptonic, L, charges. F. C. Adams, G. Laughlin, M. Mbonye, Phys.Rev. D 58 (1998) 083003.

  6. A.A. Logunov, M. A. Mestvirishvili, • S.S. Gershtein (2010-11), • claim: • Hilbert’s Causality Principle • Baryon Number Conservation • and • Equations of General Relativity • Exclude a Possibility of the Black Hole Formation • A TOUGH CHOICE FOR ME: • (remember Hamlet’s doubt) • BLACK HOLES or Standard Conservation Laws ??? • And for YOU ???

  7. arXiv:0801.2786 C.Bambi, A. D. Dolgov, and A. A. Petrov Many production mechanisms have been suggested, but so far no one is completely satisfactory. ? BH mimikers George Chapline: Black holes 'do not exist‘ “These mysterious objects are dark-energy stars”, physicist claims. (march, 2005)

  8. arXiv:hep-ph/0511217 Scott A. Hughes Trust but verify: The case for astrophysical black holes GW? ? M87 jet versus HH46-47 jet

  9. astro-ph/0803.0322Ramesh Narayan, Jeffrey E. McClintock Eddington-scaled luminosities (0.5–10 keV) of BH transients (filled circles) and NS transients (open circles) versus the orbital period .

  10. How to see the event horizon Detweiler S., Black holes and gravitational waves. III - The resonant frequencies of rotating holes, ApJ239, 292-295, (1980). Dreyer O., Kelly B., Krishnan B., Finn L. S., Garrison D., Lopez- Aleman R., Black-hole spectroscopy: testing general relativity through gravitational-wave observations, Class. Quantum Grav. 21, 787-803 (2004) Chirenti C. B. M. H., Rezzolla L., How to tell a gravastar from a black hole, CQG 24,I.16: pp. 4191-4206 PF CQG, 23, 2006. JPC, 2007: Grav-modes using the Heun functions

  11. EM modes PF, D Staicova: ASS, PRD 2010-11 using the Heunfunctions Kerr EM modes for primary jets Kerr EM QNM

  12. arXiv:0905.1028 [astro-ph.HE]

  13. Wolfgang Kund arXiv:0905.1028 arXiv:0902.351 Critical Thoughts on Cosmology old yang arXiv:0911.1355 62,185 quazars 15,180 quazars Original: ApJ Lett. 674 L1-4, 2008,MASS FUNCTIONS OF THE ACTIVE BLACK HOLES IN DISTANT QUASARS FROM THE SLOAN DIGITAL SKY SURVEY DATA RELEASE 3 M. Vestergaard, X. Fan, C. A. Tremonti, Patrick S. Osmer, and Gordon T. Richards

  14. Neutron Star Discovered Where a Black Hole Was Expect (November, 2005), Westerlund1 A very massive star collapsed to form a neutron star and not a black hole as expected, according results from NASA's Chandra X-ray Observatory. This discovery shows that nature has a harder time making black holes than previously thought.

  15. ArXiv:0903.010

  16. Testing black hole no-hair theorem with OJ287, arXiv:1108.586 OJ 287 binary black hole system, arXiv:1112.1162 In

  17. One of the results of Columbusexpedition: We are still speaking about (American) Indians who have never seen India It was AmerigoVespucci who first had recognized that they have discovered not India, but SOMETHING MUCH MORE INTERSTING A NEW CONTINENT AMERICA ?

  18. Thank You

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