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2557

KS 1731-260

MJD 51397.26052 — 1999 Aug 7 6:15:09.1 — PCA — obs 40025-02-03-00 — (140/366)

This page displays the lightcurve and parameters in MINBAR DR1 for this event (Galloway et al. 2020).

Click for table parameters or navigate to previous/next burst: < 1999 Jun 26 8:33:36.1 > 1999 Aug 14 6:18:53.1

⚠ (:html:) <script type="text/javascript" src="uploads/dygraph.min.js"> </script> <div id="graphdiv4" style="width:700px; height:320px;"> </div> <script type="text/javascript"> g4 = new Dygraph( document.getElementById("graphdiv4"), "uploads/MINBAR/bursts/2557_lc.csv", { showRoller: true, rollPeriod: 5, errorBars: true, ylabel: "PCA intensity (count/cm^2/s)", xlabel: "Time (s)", } ); </script> (:htmlend:)

This plot shows the segment of the 1-s binned lightcurve surrounding the event. Shaded regions indicate the error range for the count rate. The plot is resizeable; just click and drag on the figure area with the mouse. Double-click to restore the original shape. The figure in the box at the lower-left is the window size for the rolling average

References to other analyses of this burst: in 't Zand et al., (2017) (3928)

Table parameters

parametervalueunit
instrPCA 
obsid40025-02-03-00 
time51397.26052MJD UT
calendar date1999 Aug 7 6:15:09.1UT
entry_obs16129 
bnum1 
xref11 
mult1 
angle0.40arcmin
vigcorr0.994 
sflag- 
rexp1.00 
rise3.00s
tau16.6± 0.6s
dur43.0± 1.3s
edt12.2± 0.0s
tdel1005.7h
trec-h
perflx1.081± 0.0091e-9 erg/cm^2/s
alpha- 
bc- 
gamma0.0540 
sc0.584 
hc0.689 
s_z1.488 
pflux1.59± 0.02count/cm^2/s
fluen30.245± 0.409count/cm^2
bpflux29.67± 1.101e-9 erg/cm^2/s
kT2.25±0.05keV
rad10.3± 0.4km/d_10kpc
bfluen0.4892±0.00301e-6 erg/cm^2

Parameters from the MINBAR DR1 analysis for this burst; click here for a description of each parameter.

Time-resolved spectroscopy

Click here to download time-resolved spectral analysis for this burst

Time resolved spectral files are available for selected RXTE/PCA and BeppoSAX/WFC bursts only.

The file formats are described here.

Please report any issues with this page or the linked files to Duncan.Galloway@monash.edu

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Page last modified on April 13, 2026, at 09:29 AM