BATSE Bright Source Monitor (Pulsed Sources)

Frequency & Flux Histories


Most Recent Mission-to-date Long-term Summary of transient outbursts

Most Recent:

Key: = Active Sources = Past 100 days = Inactive sources (last outburst plotted)

[Relative to May 26, 2000, the last day of operations for CGRO]

Most Recent
Mission-to-date
Long-term
Summary of
transient outbursts

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2S 1417-624 4U 0115+634 4U 1145-619 4U 1626-67
Cen X-3 Cep X-4 (GS 2138 + 56) EXO 2030 +375 GRO J1008-57
GRO J1744-28 GRO J1944+26 GRO J2058+42 GS 1843+00
GX 1+4 GX 301-2 Her X-1 OAO 1657-415
Vela X-1 XTE J0111.2-7317 4U 1538-52 XTE J1543-568


The plots above are obtained using the BATSE Pulsar Monitor.
Information on pulsar monitor run parameters (assumed spectral form and system orbit) can be found here

CGRO Mission to Date: April 1991 - June 1999

Most Recent
Mission-to-date
Long-term
Summary of
transient outbursts

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4U 1538-52 4U 1626-67 Cen X-3 GX 1+4
GX 301-2 Vela X-1


Long-term Histories: Discovery - June 1999

Most Recent
Mission-to-date
Long-term
Summary of
transient outbursts

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4U 1538-52 4U 1626-67 Cen X-3 GX 1+4
GX 301-2 Vela X-1


Transient Outburst Summary

The plot at right summarizes all outbursts of transient pulsed sources seen by BATSE since launch of the CGRO (using optimal analysis techniques and longer observation intervals than 1 day where necessary, not directly obtained from standard daily Monitor).
Transient Outbursts
(last updated Apr 30,1999)

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Page and plots produced by Bob Wilson (NASA/MSFC)