rest frame light curves of swift grbs
DESCRIPTION
Rest frame light curves of Swift GRBs. Vanessa Mangano, Giancarlo Cusumano, Valentina La Parola, Eleonora Troja, Teresa Mineo. Outline of the Talk. The sample of Gamma-ray burst with known redshift triggered by Swift Their light curves: shape and and average properties Energetics. - PowerPoint PPT PresentationTRANSCRIPT
Vanessa Mangano - Venice 2006Vanessa Mangano - Venice 2006
Rest frame light curves of Swift GRBs
Vanessa Mangano,Giancarlo Cusumano, Valentina La Parola,
Eleonora Troja, Teresa Mineo
Vanessa Mangano - Venice 2006Vanessa Mangano - Venice 2006
Outline of the Talk
• The sample of Gamma-ray burst with known redshift triggered by Swift
• Their light curves: shape and and average properties
• Energetics
Vanessa Mangano - Venice 2006Vanessa Mangano - Venice 2006
26 GRB with flares
14 GRB w/o flares
High zShortXRFothersHigh-z/XRF
8 High z/GRB
3 Short
8 XRF20 Others
1 High z/XRFThe sample
Vanessa Mangano - Venice 2006Vanessa Mangano - Venice 2006
The redshift distribution
Vanessa Mangano - Venice 2006Vanessa Mangano - Venice 2006
Nousek at al. 2006
Chincarini et al. 2005
Previous works
Vanessa Mangano - Venice 2006Vanessa Mangano - Venice 2006
luminositylight curves
with4 < z < 7
<Log Lx>=49.8 ± 0.6
<Log Lx>=48.3 ± 0.8
<Log Lx>=46.1 ± 0.6
Vanessa Mangano - Venice 2006Vanessa Mangano - Venice 2006
<Log Lx>=49.6 ± 0.5
<Log Lx>=48.3 ± 0.9
<Log Lx>=46.7 ± 0.6
luminositylight curves
with2 < z < 4
Vanessa Mangano - Venice 2006Vanessa Mangano - Venice 2006
<Log Lx>=50.19 ± 0.73
<Log Lx>=47.7 ± 0.6
<Log Lx>=46.1 ± 0.7
luminositylight curves
with1 < z < 2
Vanessa Mangano - Venice 2006Vanessa Mangano - Venice 2006
Long bursts
Short bursts
Luminosity light curves with z < 1
<Log Lx>=45.0 ± 0.8
<Log Lx>=46.0 ± 1.5
Vanessa Mangano - Venice 2006Vanessa Mangano - Venice 2006
X-ray luminosities atfixed rest frame timessince the trigger
@ 35 s@ 1 ks@ 11 hr
Only the continuum underlying flares
Vanessa Mangano - Venice 2006Vanessa Mangano - Venice 2006
Afterglow light curves with two breaks
(at least)
Light curves with one break
no breaks...
Vanessa Mangano - Venice 2006Vanessa Mangano - Venice 2006
Average properties of the light curves
Vanessa Mangano - Venice 2006Vanessa Mangano - Venice 2006
The durations of long bursts
Vanessa Mangano - Venice 2006Vanessa Mangano - Venice 2006
Nousek et al. 2006
Correlation between Eiso and the X-ray afterglow luminosity
BeppoSAX andHETE data from
Bloom et al. 2003Berger et al. 2003
Vanessa Mangano - Venice 2006Vanessa Mangano - Venice 2006
Using the larger Swift sample…..
10
Vanessa Mangano - Venice 2006Vanessa Mangano - Venice 2006
Energetics15-150 keV rest frame energy of the prompt
versus0.2-10 keV rest frame energy of the afterglow
X-rays from 35 to 1000 s X-rays from 1000 s to 11 hr
Vanessa Mangano - Venice 2006Vanessa Mangano - Venice 2006
To be continued……
Summary:
• Average properties of the luminosity light curves in rest frame studied in detail• Energetics of flares and different afteglow phases need further investigation