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Oleg Verkhodanov, Vladimir Sokolov, Margarita Khabibullina Special astrophysical observatory Nizhnij Arkhyz, Russia. Correlation of GRB and CMB peaks ( view from the CMB frame ). GRBs: BeppoSAX (red) + BATSE (white). BATSE. BeppoSAX. t<2s. t<2s. t >2s.

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## Correlation of GRB and CMB peaks ( view from the CMB frame )

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**Oleg Verkhodanov,**Vladimir Sokolov, Margarita Khabibullina Special astrophysical observatory Nizhnij Arkhyz, Russia Correlation of GRB and CMB peaks (view from the CMB frame)**BATSE**BeppoSAX t<2s t<2s t >2s t >2s**Multipole expansion**L =3 (octupole) L = 2 (quadrupole) L = 5 L = 4**ILC map: different resolution**Lmax=150, w=36'x36' Lmax=20, w=260'x260'**ILC map: Lmax=150**BATSE BeppoSAX t < 2s t < 2s t > 2s t > 2s**ILC map: Lmax=20**BATSE BeppoSAX t < 2s t < 2s t > 2s t > 2s**What could we await from correlation ?**1) GRBs as cosmological star formation regions a) Sunyaev-Zeldovich effect (< ~4') b) Sachs-Wolfe effect (>200') 2) Something else 3) Nothing**What could we await from correlation ?**1) GRBs as cosmological star formation regions a) Sunyaev-Zeldovich effect (< ~4') b) Sachs-Wolfe effect (>200') 2) Something else 3) Nothing Let us look at statistics**First way:**measuring pixel values of CMB in the GRB pixels**First way:**measuring pixel values of CMB in the GRB pixels T Mission Lmax Nt Ne Model t<2s BATSE 150 497 244 249+/-11 t>2s BATSE 150 1540 763 769+/-19 t<2s BATSE 20 497 250 248+/-13 t>2s BATSE 20 1540 781 768+/-32 t<2s BeppoSAX 150 87 43 44+/- 5 t>2s BeppoSAX 150 694 339 347+/-15 t<2s BeppoSAX 20 87 50 44+/- 5 ? t>2s BeppoSAX 20 694 346 348+/-18**ILC map statistics: Lmax=20**BeppoSAX BATSE t < 2s t < 2s t > 2s t > 2s**ILC map statistics: Lmax=150**BeppoSAX BATSE t < 2s t < 2s t > 2s t > 2s**Put pixels on a sphere and**add ecliptic coordinate system...**Put pixels on a sphere and**and intergrate them in 700'x700' pix**Map of CMB pixels in GRB positions**Pixel integration Smoothed**Quadrupole of CMB pixels in GRB positions**Quadrupole Ecliptic C.S.**Quadrupole of CMB pixels in GRB positions**Ecliptic C.S. OR Equatorial C.S. (both ?)**So, what do we see ?**Small extra-pixel statistics knows about ecliptic or/and equatorial coordinate system...**Second way:**correlation of CMB and GRB maps**GRBs maps, pixel w=200'x200'**BeppoSAX BATSE t < 2s t < 2s t > 2s t > 2s**BATSE correlation 500' with**BeppoSAX CMB t < 2s t < 2s t > 2s t > 2s**BATSE correlation with**BeppoSAX CMB t < 2s t < 2s t > 2s t > 2s smoothed**BATSE correlation with**BeppoSAX CMB Spectrum, max at L=2 Spectrum, max at L=3 t > 2s t > 2s**BATSE correlation with**BeppoSAX CMB L=2 L=3 t > 2s t > 2s**BATSE correlation with**BeppoSAX CMB L=2 L=3 t > 2s t > 2s Equatorial coord. system**There are some non-gaussian features in the GRB-CMB**correlations in: 1) Ecliptic coordinate system – solar wind in Ecl.Poles ? 2) Equatorial Coor. S. - cosmic rays around Earth? 3) Small strange statistics ? ? Not only GRBs know coordinate systems, but CMB knows equatorial system too !... Interesting information can be obtained from GRBs redshifts.

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