j_src_extract_spectra

This script derives JEM-X countrate spectra for all sources found in the current Science Window.

Output is in three data structures: JMXi-SRCL-BSP contains the background spectra at each source location, which have been used to correct the source spectrum itself. Background spectra are stored in PHA II format.

JMXi-SRCL-SPE contains the spectra for each individual found source. Spectra are stored in PHA II format.

JMXi-SRCL-ARF contains ancillary response for each source. The ARFs are stored in the ARF II format. (The ARF is scaled to the total detector area to correspond to the stored spectra. The scaling will probably be changed so that it corresponds to the source illuminated area.)

Table 48: Content of JMXi-SRCL-BSP Data Structure.

Column Name	Description
SPEC_NUM	Reference Number of spectrum in this row
ROWID	Unique identifier of spectrum
CHANNEL	Array of channel numbers for the countrates
RATE	Array of countrates in the defined channels
STAT_ERR	Array of estimated statistical uncertainty of the countrates
SYS_ERR	Array of estimated systematical uncertainty of the countrates
QUALITY	Array of quality flags for the channels
EXPOSURE	Effective integration time for the spectrum
TELAPSE	Total elapsed time of the data in seconds
ONTIME	Sum of good time intervals in seconds
DEADC	Deadtime correction factor
TFIRST	Start of the integration time interval in IJD
TLAST	End of the integration time interval in IJD

Table 49: Content of JMXi-SRCL-SPE Data Structure.

Column Name	Description
SPEC_NUM	Reference Number of spectrum in this row
ROWID	Unique identifier
CHANNEL	Array of channel numbers for the countrates
RATE	Array of countrates in the defined channels
STAT_ERR	Array of estimated statistical uncertainty of the countrates
SYS_ERR	Array of estimated systematical uncertainty of the countrates
QUALITY	Array of quality flags for the channels
BACKFILE	File and row of corresponding background spectrum
BACKSCAL	Background scaling factor
ANCRFILE	File and row of corresponding ARF
EXPOSURE	Effective integration time for the spectrum
TELAPSE	Total elapsed time of the data in seconds
ONTIME	Sum of good time intervals in seconds
DEADC	Deadtime correction factor
TFIRST	Start of the integration time interval in IJD
TLAST	End of the integration time interval in IJD
EVT_TYPE	Event type

Table 50: Content of JMXi-SRCL-ARF Data Structure.

Column Name	Description
ARF_NUM	Reference Number of ARF data in this row
ENERG_LO	Lower energy boundaries of bins
ENERG_HI	Upper energy boundaries of bins
SPECRESP	Effective area in cm of the detector for a given source taking all effects into account