observational overview of state transitions in x-ray binaries

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LIGHT CURVE GX 339-4 Let me illustrate the typical spectral evolution that is seen in most transient outburst. I’m taking GX 339-4 as an example, as it show fairly clean behavior, compared to some other systems. This is a light curve in the full RXTE/PCA energy band
ENERGY DEPENDENCE This movie (Homan_GX339-4_movie.mov) shows how the outburst shape depends on energy. During the movie the energy of the light curve goes down from 20 keV to 2 keV. In the high energy band we see a large peak at the start of the outburst. Going down to lower energies that peak disappears. Instead we see peaks appear later in the outburst. Obviously, there are considerable spectral changes during the outburst.
Page 1 and 2: !""#$%&'()*#'"$++$+)&(),-#!.+/ 4566
Page 3 and 4: MORE BACKGROUND • 1996>: Dedicate
Page 5 and 6: TRANSIENT SOURCES • Relation betw
Page 7: OUTBURST LIGHT CURVES 4U 1543-47 GR
Page 11 and 12: SPECTRAL EVOLUTION GX 339-4 First I
Page 13 and 14: COLOR EVOLUTION hardness-intensity
Page 15 and 16: Luminosity (erg/s) SPECTRAL EVOLUTI
Page 17 and 18: XTE J1752-223 XTE J1908+094 SPECTRA
Page 19 and 20: SPECTRAL EVOLUTION GRO J1655-40 I
Page 21 and 22: SPECTRAL EVOLUTION GRO J1655-40 We
Page 23 and 24: SPECTRAL EVOLUTION GX 339-4 Transit
Page 25 and 26: IMPLICATIONS FOR ACCRETION • outb
Page 27 and 28: STATE CLASSIFICATION • Various cl
Page 29 and 30: RAPID X-RAY VARIABILITY • power d
Page 31 and 32: • low-luminosity version of the h
Page 33 and 34: INTERMEDIATE STATE Intermediate (tr
Page 35 and 36: RAPID X-RAY VARIABILITY Okay, let
Page 37 and 38: Power type-B frequency up 1 10 100
Page 39 and 40: No Compact Jet (interaction with IS
Page 41 and 42: GRO J1655-40 weak abs. lines weak e
Page 43 and 44: Aql X-1 NEUTRON STARS hard - soft -
Page 45 and 46: Aql X-1 Back to the HID again. NEUT
Page 47 and 48: hard transitional Lin et al. 2009 H
Page 49 and 50: Lin et al. 2009 Homan et al. 2010 N

observational overview of state transitions in x-ray binaries

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