Enigma of ultraluminous Xray sources may be resolved by 3Dspectroscopy

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Enigma of ultraluminous X-ray sources may be
resolved by 3D-spectroscopy
S. Fabrika
Special Astrophysical Observatory, Russia
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ULX in Peculiar SNR MF16 in NGC6946
X-1
NGC6946, T. Rector (Gemini, AURA)
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Ecology of ULXs
Star-burst regions spiral and interacting
galaxies, galactic nuclei Frequency 0.05 per
a spiral galaxy X-ray luminosity functions
(XLFs) a number of ULXs (gt 1039 erg/s) follows
roughly to distribution of HMXRBs and depends on
Star Formation Rate
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X-ray properties of ULXs
X-ray luminosities L 0.5-100 keV 10 39-42
erg/s Spectra hard, kT 1-3 keV (XRBs)
or power law, ? 1.5-3 thermal component kT
0.1-0.3 keV hard/low transitions Variability e
xtremely strong, down to minutes, QPO
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Models of ULXs

• Supercritical accretion disks (SCADs) in close
  bynaries with stellar-mass black hole (SS433,
  microquasars), observed close to the disk axes.
  SCADs structure
  funneling boosting
• Intermediate-mass black holes (IMBHs) 102 104
  M? Extention of luminosity range

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SS433 jets
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SS433 Supercritical Disk and Funnel
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Face-on Luminosity of SS433

Observed (edge-on) luminosity of SS433 Lbol
1040 erg/s we suggest Lfunnel Lbol
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SS433 nebula (W50)
r50pc Ekin2 1051 erg 3 1039erg/s for
20 000 years velocity dispersion 50
km/s NII/H? corresponds to 300 km/s 300 km/s
50 km/s / sin i
Zealey et al., 1980
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ULX HoII X-1 Integral and Long-Slit Spectroscopy
(Lehmann et al., 2005)
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ULX in Holmberg II. CFHT optical identification
and the MPFS 3D-spectroscopy (Lehmann et al.,
2005)
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Holmberg II X-1, ULX impacts the
associated nebula
(Lehmann et al., 2005)
Radial velocity gradient 50km/s at 2?
(30pc)
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MF16/NGC6946
HST, WFPC2, F450W
HST, ACS, F658N
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MF16/NGC6946
MPFS data, HeII4686 and OIII 5007 line
profiles (velocities given in 1000 km/s)
Relative Intensity
Radial Velocity
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MF16/NGC6946 radial velocity gradients
HeII 4686, Gauss analysis ?
HeII 4686, ? line barycenter
?H?
OIII 5007 ?
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IC342
ULX-1 The tooth-nebula and OIII-bipolar
structure (Roberts et al., 2003)
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IC342 ULX-1, MPFS data
SII 6717 6731
H?
OIII 5007
HeII 4686
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IC342 ULX-1 H? map with radial velocities
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IC342 ULX-1
East
OIII 5007
West
W
E
S
South
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Supernovae Remnants" around ULXs scaled to one
physical length. SS433 (VLA) Dubner et al,
1998 Holmberg II ULX-1 (HSTVLA) Miller et al.,
2005 MF16 and NGC6946 ULX-1 (ChandraHSTVLA) R
adio isophotes from Van Dyk et al., 1994
0.5 deg

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?handra spectra of NGC 6946 ULX-1 (Roberts,
Colbert, 2003)
MCD, kT0.15 keV and PL, ? 2.5
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QPO 54 mHz (gt
2 keV) in ULX CXOM82 J095550.2694047
(Strohmayer
Mushotzky, 2003)
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Radio nebula W50 around SS433 (VLA, VLBI, G.
Dubner, Z. Paragi)