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0227

4U 1728-34

MJD 51092.94282 — 1998 Oct 6 22:37:39.3 — WFC 2 — obs 5507 — (254/1173)

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: < 1998 Oct 6 19:58:22.3 > 1998 Oct 23 6:46:53.8

⚠ (: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/0227_lc.csv", { showRoller: true, rollPeriod: 5, errorBars: true, ylabel: "WFC 2 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: Cornelisse et al., (2003) (1226)

Table parameters

parametervalueunit
instrWFC 2 
obsid5507 
time51092.94282MJD UT
calendar date1998 Oct 6 22:37:39.3UT
entry_obs5956 
bnum4 
xref- 
mult1 
angle347.49arcmin
vigcorr0.650 
sflag- 
rexp1.72 
rise2.10s
tau4.2± 1.0s
dur10.3± 2.5s
edt2.6± 0.5s
tdel2.7h
trec-h
perflx4.734± 0.0891e-9 erg/cm^2/s
alpha- 
bc- 
gamma0.1139 
sc0.671 
hc0.635 
s_z1.623 
pflux2.66± 0.47count/cm^2/s
fluen14.550± 2.927count/cm^2
bpflux50.79± 8.181e-9 erg/cm^2/s
kT2.39±0.21keV
rad10.8± 1.7km/d_10kpc
bfluen0.2042±0.03291e-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 25, 2026, at 03:30 PM