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ВАК-2007, Казань, 17-22 сентября 2007

ВАК-2007, Казань, 17-22 сентября 2007. Jets activity from RATAN and X-ray monitoring of microquasars Sergei Trushkin, N. Bursov, N. Nizhelskij SAO RAS T. Kotani, N. Kawai, M.Tsuboi ( Tokyo Tech, NRO ) ‏. RATAN-600 radio telescope. North Caucas, al:1000 m band: 1-30 Ghz, 5-30mJy

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ВАК-2007, Казань, 17-22 сентября 2007

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  1. ВАК-2007, Казань, 17-22 сентября 2007 Jets activity from RATAN and X-ray monitoring of microquasars Sergei Trushkin, N. Bursov, N. Nizhelskij SAO RAS T. Kotani, N. Kawai, M.Tsuboi (Tokyo Tech, NRO)‏

  2. RATAN-600 radio telescope North Caucas, al:1000 m band: 1-30 Ghz, 5-30mJy Aeff ~ 1000-1500m^2, HPBW ~ 15''x5' at 5 GHz

  3. Focal plane of the radiometers horns

  4. RT32 (IAA RAS)‏

  5. A X-ray binary from R. Hynes

  6. SS433 – the first XRB with jets

  7. VLBA images of SS433

  8. Mean quiet spectrum of SS433 At http://cats.sao.ru -- on-line ~1500 radio spectra in 1987-2007

  9. Radio light curves of SS433 in 2001

  10. (Transient?) 6.06 day periodicity of SS433

  11. SS433 QPO in XTE PCA data

  12. Cyg X-3 (WR-star+BH?/NS?)‏ • First flaring Galactic source (Nature) 1972 – during 34 years ~50 flares >1Jy (in 2006: 7!)‏ • Very close binary: 4.8h orbit period • Variable velocity of jets: 0.1-0.9c • Very clear «classic» synchrotron radio flares. • Periods of the activity ~100 days. (2006:~200d)‏ • Enigma: radio flux drops down before strong flares during: ~1-3 weeks, max: ~8 weeks!

  13. INTEGRAL spectrum on 26 July

  14. X-ray spectra of the Cyg X-3 states • Blue – quiet state (low radio); red -- before a flare (dip to 10 mJy); green - a radio flare > 1Jy -> jets.

  15. Cyg X-3 flares in April 2000

  16. Cyg X-3 flare 16 September 2001

  17. Spectra of the Cyg X-3 flare in Sep.2001

  18. Cyg X-3 VLBA maps in September 2001from Miller-Jones+ (2004)

  19. Cyg X-3 light curves in 2005-2006 2005 2006

  20. Cyg X-3 in quiet state (left) and in a flare (first maps with eVLBI, J. Miller-Jones+)‏

  21. 15-50 keV (Swift/BAT) & 5-11 GHz (RATAN)‏

  22. RATAN & NRO data

  23. Flares from Cyg X-3 (Jan-March 2006)‏ !!!

  24. Cyg X-3 in MJD 53789 (23 Feb)‏ Spectral index =+0.75

  25. Activity in March 2006

  26. Spectra of the 2006 May flare

  27. Cyg X-3 flare in July 2006

  28. Model light curve of the July flare • t_i ~ 3.1 d • t_expo_expa = ~2.4d • n_ther =3*10^5 cm^-3 • Mdot_rel = 6.62*10^18 • v_jet =0.3-0.6c • B0 = 0.05 Gs • N(E) ~ N*E^-1.85 • T_e =10^4 K

  29. Spectra of Cyg X-3 in July 2006

  30. Fitting of the model and real spectra

  31. RT32 and Ryle telescope detected fast variations of the Cyg X-3 flux

  32. Light curves with РАТАН+NMA

  33. GRS 1915+105 • First superluminal source in the Galaxy, D=12kpc • A_v = 25m but VLT IR spectroscopy gives mass function f=9.5M_sun • M(BH) =14+-4 M_sun • M(prim)=1.2M_sun • 33.5 day orbit with 108R_sun separation • Proper motion ~6mas/y

  34. GBI (NRAO) and RXTE data in 1998

  35. GRS1915+105 in 2005-2006

  36. Is it a spurious coincidence? - No! --X-ray hardness became lower in a flare

  37. A softing of the X-ray event?

  38. Spectra of maxima of the flares

  39. Radio monitoring of mQSO: • Radio flaring light curves – tracers of the the jet activity. • Very close relation between X-ray (1-200 keV) and radio (dm-mm) emission (X-ray states <=> internal shockes). • Multi-frequency-ness gives us the spectral info in optically thick & thin regions – evidence of initial acceleration of electrons. • Radio monitoring of mQSO is extremely valuable during cosmic INTEGRAL, RXTE, CHANDA and Suzaku missions and the present HESS+MAGIC success.

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