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4U 1820-30 2009 Jun

This profile forms part of the sample assembled for the paper "Thermonuclear burst observations for model comparisons: a reference catalogue" by Galloway, Goodwin & Keek (2017), to be submitted to PASA

This profile is an average calculated from the profiles of MINBAR bursts #3835 & 3836 (not present in Galloway et al. 2008, ApJS 179, 360), of 4U 1820-303 observed on MJD 54994 by the Rossi X-ray Timing Explorer (RXTE). Burst #3835 is the "key", from which the time bins for the average profile are taken.

Recurrence time 1.892 hr, based on the separation (no other bursts were observed around this time)

Click here to download the data file

The figure shows the results of time-resolved spectroscopic analysis. The estimated bolometric flux is plotted as green symbols & line, in units of 10-9 erg cm-2 s-1 (inner left-hand y-scale). The blackbody temperature kT is shown as purple symbols & line (right-hand y-axis, units of keV) and the normalisation as the aqua symbols & line (outermost left-hand y-scale, units of R2/d2, where R is the emitting radius in km, and d the distance to the source in units of 10 kpc).

This version of the data now includes deadtime correction (see and has the updated effective area of the v11.7 responses (see

All uncertainties are at 1-sigma (68%) confidence. Note that the time value specifies the BEGINNING of the time bin

For full details of the source sample see the MINBAR home page

back to the reference burst table

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Page last modified on December 19, 2016, at 11:29 PM