This page presents lightcurves for Mean a277 produced using the KEPLER simulation code, and analysed following Lampe, Heger & Galloway (2015).
The curve presented here is as measured in the neutron star's Newtonian rest frame. To compare this to an observation it is necessary to apply redshift corrections. Instructions for doing this are provided in the companion paper and a summary is provided here
This averaged lightcurve comes from a train of 6 bursts that can be viewed here
Lightcurve
⚠ (:html:)
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<script type="text/javascript">
g4 = new Dygraph(
document.getElementById("graphdiv4"),
"uploads/Kepler/kepler_a277_mean.csv",
{
errorBars: true,
radius: { axis: {} },
ylabel: "Luminosity (1e37 erg/s)",
y2label: "Radius (km)",
xlabel: "Time (s)",
}
);
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(:htmlend:)
The mean luminosity (green line, left-hand y-axis), is plotted
with the lighter green band giving the 1-sigma error calculated from the
variation in the lightcurves included in the average. The radius is shown
in blue (right-hand y-axis)
Parameters
The following table presents the initial conditions for the model and if a burst occurred, the average burst parameters.
| Name | Value | Unit | Description |
|---|
| model | a277 | -- | Model ID |
|---|
| num | 6 | -- | Number of simulated bursts |
|---|
| z | 0.1 | % | Metallicity mass fraction |
|---|
| h | 75.9 | % | Hydrogen mass fraction |
|---|
| lAcc | 0.03 | -- | Accretion luminosity (1) |
|---|
| burstLength | 262.0 ± 4.7 | s | Burst duration |
|---|
| peakLum | 26.41 ± 0.84 | 10+30W | Peak lumonisity |
|---|
| persLum | 0.69 ± 0.07 | 10+28W | Persistent luminsoity |
|---|
| fluence | 18.61 ± 0.82 | 10+32W | Fluence |
|---|
| tau | 70.4 ± 2.0 | s | Equivalent burst duration (tau) |
|---|
| tDel | 35.27 ± 1.12 | h | Recurrence time |
|---|
| conv | 6.24 ± 0.17 | % | Convexity |
|---|
| r1090 | 5.606 ± 0.035 | s | 10% rise time |
|---|
| r2590 | 4.689 ± 0.052 | s | 25% rise time |
|---|
| singAlpha | 0.65 ± 0.02 | -- | Power law decay index |
|---|
| singDecay | 31.09 ± 1.01 | s | Exponential decay timescale |
|---|
| alpha | 41.6 ± 0.2 | -- | Fluence ratio (alpha) |
|---|
| flag | 0 | -- | Analysis quality flag (2) |
|---|
(1) The accretion rate is in terms of the Eddington accretion rate $ (1.75 \times 10^{-8} \, \mathrm{M}_\odot \, \mathrm{yr}^{-1}) $
(2) Guide To Analyis Flags
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