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PX269 Galaxies. Part 5: Galactic nuclei 5.1 Active galaxies. Seyfert galaxies. NGC 5548 (Seyfert galaxy). NGC 3277 (normal galaxy). Typical galaxy spectrum (optical). Optical spectra of Seyfert nuclei. Type 1(broad allowed lines). Type 2 (narrow lines). XMM-Newton X-ray telescope. - PowerPoint PPT Presentation
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PX269 Galaxies
PX269 Galaxies
Part 5: Galactic nuclei
5.1 Active galaxies
Seyfert galaxies
NGC 5548 (Seyfert galaxy) NGC 3277 (normal galaxy)
PX269 Galaxies
Typical galaxy spectrum (optical)
PX269 Galaxies
Optical spectra of Seyfert nuclei
Type 1(broad allowed lines)
Type 2 (narrow lines)
XMM-Newton X-ray telescope
X-ray spectra of active galaxies
Type 1
Type 1
Type 2
Type 2
PX269 GalaxiesBroadband energy spectrum
X-rays
Rapid Variability
PX269 Galaxies
PX269 Galaxies
76m Lovell Radio Telescope
Radio image of Cygnus A (a radio galaxy)
Combined optical and radio images of Cen A
Optical jet in M87
a nearby gE galaxy
HST
HST image of the quasar 3C 273
X-ray jet from the quasar 3C 273
Optical spectra of active galaxies
Unified Model
PX269 Galaxies
Unified Model
PX269 Galaxies
PX269 Galaxies
PX269 Galaxies
Crucial evidence supporting unified modelTotal flux
Polarised flux
Type 2 spectrum
Type 1 spectrum
NGC1068
PX269 Galaxies
Transition between Type 1 and 2 in a single object
1984: Type 2
1974: Type 1
PX269 Galaxies
Part 5: Galactic nuclei
5.2 Super-massive black holes in normal galaxies
PX269 Galaxies
Kormendy 1988
Evidence for a super-massive black hole at the nucleus of M31
Hubble Space Telescope
Very Large Telescope (VLT)
European Southern Observatory (ESO) in Chile
PX269 Galaxies
Schoedel et al 2002, Nature 419, 694
PX269 Galaxies
Schoedel et al 2002, Nature 419, 694
PX269 GalaxiesSchoedel et al 2002, Nature 419, 694
PX269 GalaxiesSchoedel et al 2002, Nature 419, 694
PX269 Galaxies
PX269 Galaxies
The M-Sigma relation
Tremaine et al 2002, ApJ 574, 740
PX269 Galaxies
Kormendy 1988
Evidence for a super-massive black hole at the nucleus of M31