BATSE Bright Source Monitor (Pulsed Sources)

4U 1538-52

Recent Flux & Frequency History

Source Not Detected with Standard 1-day Monitor

CGRO/BATSE Mission Frequency History

Pulsar HOME
PS file
FITS file
(FITS readme file)
Typical Pulse Profile
Top of page
Long-term History
Data for the above plot are obtained from an enhanced analysis. One frequency measurement per 22.38 days (6x system orbital period) is made.

Long-term Frequency History

Pulsar HOME
PS file
Mission History
Top of page
The same BATSE data is plotted here, along with measurements of the source made since discovery of pulsations.