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Дата изменения: Wed Jul 2 04:42:18 2008
Дата индексирования: Fri Sep 5 20:45:24 2008
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Поисковые слова: arp 220

XMM-Newton Science Analysis System


emldetect (emldetect-4.60.1) [xmmsas_20080701_1801-8.0.0]

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Parameters

This section documents the parameters recognized by this task (if any).

Parameter	Mand	Type	Default	Constraints
imagesets	yes	filename list	image.fits
Names of input EPIC fits images$^{1,2}$ or event lists$^3$ (if useevents = true; not yet implemented)
expimagesets	no	filename list	expimage.fits
Names of exposure images$^{1,2}$
detmasksets	no	filename list	detmask.fits
Names of detection masks$^{3}$
bkgimagesets	yes	filename list	bkgimage.fits
Names of background maps$^{1,2}$
boxlistset	yes	filename	eboxlist.fits
Name of eboxdetect source list
mllistset	yes	filename	emllist.fits
Name of output emldetect source list
mergedlistset	no	filename	mergedlist.fits
Name of merged source list
mlmin	no	float	10.0	[1.0$<$param$<$50.0]
Minimum detection likelihood for inclusion of source in output list
dmlextmin	no	float	10.0	[1.0$<$param$<$100.0]
Required likelihood improvement for source extent
scut	no	float	0.9	[0.4$<$param$<$0.99]
Source selection radius for multi-source fitting (expressed as fraction of the normalized PSF integrated to the desired radius)
ecut	no	float	0.68	[0.4$<$param$<$0.99]
Event cut-out radius for multi-source fitting (expressed as fraction of the normalized PSF integrated to the desired cut-out radius)$^4$
ecf	no	float	1.0	[0.001$<$param$<$1000]
Energy conversion factors, given in units of $10^{11}$ counts cm$^2$ erg$^{-1}$ $^{1,2}$
xidecf	no	float	1.0	[0.001$<$param$<$1000]
XID band energy conversion factors, given in units of $10^{11}$ counts cm$^2$ erg$^{-1}$ $^3$
useevents	no	binary	false
Photon mode flag$^6$
fitposition	no	binary	true
Fit source positions
fitextent	no	binary	false
Fit source extent
fitcounts	no	binary	true
Fit source counts
fitnegative	no	binary	false
Allow fitted count rates to become negative
determineerrors	no	binary	true
Determine statisitical errors
withexpimage	no	binary	true
Use exposure maps
withdetmask	no	binary	false
Only sky pixels inside the detection mask will be used in the PSF fits if set to true
withoffsets	no	boolean	false
Controls whether the merged source list will be read
withxidband	no	boolean	false
Controls whether XID band output will be written
withsourcemap	no	boolean	false
Controls whether source maps (one per input image) will be written
sourceimagesets	no	filename list	srcmap.fits
Names of source maps (one per input image)
usecalpsf	no	boolean	true
True: read PSF from the calibration db; false: use hardcoded PSF$^5$
extentmodel	no	string	gaussian	gaussian|beta
Model function for source extent
minextent	no	float	1.5	[0.0$<$param$<$300.]
Minimum allowed value for the extent parameter of an extent model in image pixels
maxextent	no	float	20.0	[0.1$<$param$<$300.]
Maximum allowed value for the extent parameter of an extent model in image pixels
withhotpixelfilter	no	boolean	false
if true, the likelihood contribution of the brightest pixel will be ignored (i.e., detections relying on a single pixel will be disregarded)
nmaxfit	no	integer	1	1,6
Max. number of sources to be fit simultaneously
nmulsou	no	integer	1	1,3
Allow fit to split up one input source in maximum nmulsou sources
pimin	no	integer	2000	[0$<$param$<$20000]
Lower energy boundaries of exposure images; units: eV
pimax	no	integer	4500	[0$<$param$<$20000]
Higher energy boundaries of exposure images; units: eV
hrpndef	no	integer	1 2 2 3 3 4	0,10
Array of six integer numbers specifiying the upper and lower energy band for each of three hardness ratios (PN)
hrm1def	no	integer	1 2 2 3 3 4	0,10
Array of six integer numbers specifiying the upper and lower energy band for each of three hardness ratios (MOS1)
hrm2def	no	integer	1 2 2 3 3 4	0,10
Array of six integer numbers specifiying the upper and lower energy band for each of three hardness ratios (MOS2)
xidpndef	no	integer	2 3	0,10
energy bands used as xid band (PN)
xidm1def	no	integer	2 3	0,10
energy bands used as xid band (MOS1)
xidm2def	no	integer	2 3	0,10
energy bands used as xid band (MOS 2)
xidfixed	no	boolean	false
Run emldetect on XID band image with positions and source extent fixed to input values
withthreshold	no	boolean	false
Allow splitting up into multi-PSF fitting only for sources above threshold
threshold	no	float	20	[1.0$<$param$<$50.0]
Value of threshold for multi-PSF fitting
threshcolumn	no	string	LIKE	LIKE|SCTS|RATE
Column in input list, on which threshold will be applied
withtwostage	no	boolean	false
use two stage process for multi PSF (nmulsou > 1) fitting
Parameter	Mand	Type	Default	Constraints

$^1$ Space separated list, sorted by instrument and energy band. I.e.,energy band 1 to energy band $n$ of instrument one is followed by energy band one to $n$ of instrument two.
$^2$ One per instrument per energy band
$^3$ One per instrument
$^4$ A parameter value of 1.0 would thus correspond to an infinite radius.
$^6$ Photon mode is not yet implemented in the current task version.