xspexmon

Context: models

Synopsis

Neutral Compton reflection with self-consistent Fe and Ni lines. XSpec model.

This model from Nandra et al. (2007; MNRAS 382, 194) combines pexrav (see 'ahelp xspexrav') with self-consistently generated Fe K-alpha, Fe K-beta, Ni K-alpha and the Fe K-alpha Compton shoulder. Line strengths are based on Monte Carlo calculations by George and Fabian (1991; MNRAS 249, 352) which are parametrized for 1.1 < gamma < 2.5 by:

EW = 9.66 EW_0(gamma^(-2.8) - 0.56)

with inclination dependence for i < 85 degrees :

EW = EW_0 (2.20 cos i - 1.749 (cos i)^2 + 0.541(cos i)^3)

and abundance dependence :

log EW = log EW_0 (0.0641 log A_Fe - 0.172 (log A_Fe)^2)

The Fe K-beta and Ni K-alpha line fluxes are 11.3% and 5% respectively of that for Fe K-alpha. The Fe K-alpha Compton shoulder is approximated as a gaussian with E = 6.315 keV and sigma = 0.035 keV. The inclination dependence is taken from Matt (2002; MNRAS 337, 147) such that :

EW_shoulder = EW_FeKalpha(0.1 + 0.1 cos i)

This is an additive model component.

xspexmon Parameters

Number	Name	Description
1	PhoIndex	power-law photon index, N_E prop. to E^(-PhoIndex)
2	foldE	cutoff energy in keV (if foldE = 0 there is no cutoff).
3	rel_refl	the scaling factor for reflection: < 0, no direct component; =1, isotropic source above the disk
4	redshift
5	abund	abundance of elements heavier than He relative to Solar
6	Fe_abund	iron abundance relative to Solar
7	Incl	cosine of the inclination angle
8	norm	normalization is the photon flux at 1 keV (photons/keV/cm2/s) of the cutoff power law only (without reflection) and in the Earth frame.

XSpec version

This information is taken from the XSpec User's Guide. Version 12.7.1 of the XSpec models is supplied with CIAO 4.4.1.

Bugs

For a list of known bugs and issues with the XSPEC models, please visit the XSPEC bugs page.

models: absorptionedge, absorptiongaussian, absorptionlorentz, absorptionvoigt, accretiondisk, atten, bbody, bbodyfreq, beta1d, beta2d, blackbody, box1d, box2d, bpl1d, bremsstrahlung, brokenpowerlaw, ccm, const1d, const2d, cos, delta1d, delta2d, dered, devaucouleurs2d, edge, emissiongaussian, emissionlorentz, emissionvoigt, erf, erfc, exp, exp10, fm, gauss1d, gauss2d, hubblereynolds, jdpileup, linebroad, list_model_components, list_models, lmc, log, log10, logabsorption, logemission, logparabola, lorentz1d, lorentz2d, models, normbeta1d, normgauss1d, normgauss2d, opticalgaussian, poisson, polynom1d, polynom2d, polynomial, powerlaw, powlaw1d, recombination, scale1d, scale2d, schechter, seaton, sersic2d, sin, sm, smc, sqrt, stephi1d, steplo1d, tablemodel, tan, xgal, xs, xsabsori, xsacisabs, xsapec, xsbapec, xsbbody, xsbbodyrad, xsbexrav, xsbexriv, xsbkn2pow, xsbknpower, xsbmc, xsbremss, xsbvapec, xsbvvapec, xsc6mekl, xsc6pmekl, xsc6pvmkl, xsc6vmekl, xscabs, xscemekl, xscevmkl, xscflow, xscompbb, xscompls, xscompps, xscompst, xscompth, xscomptt, xsconstant, xscplinear, xscutoffpl, xscyclabs, xsdisk, xsdiskbb, xsdiskir, xsdiskline, xsdiskm, xsdisko, xsdiskpbb, xsdiskpn, xsdust, xsedge, xseplogpar, xseqpair, xseqtherm, xsequil, xsexpabs, xsexpdec, xsexpfac, xsezdiskbb, xsgabs, xsgadem, xsgaussian, xsgnei, xsgrad, xsgrbm, xshighecut, xshrefl, xskerrbb, xskerrd, xskerrdisk, xslaor, xslaor2, xslogpar, xslorentz, xsmeka, xsmekal, xsmkcflow, xsnei, xsnotch, xsnpshock, xsnsa, xsnsagrav, xsnsatmos, xsnsmax, xsnteea, xsnthcomp, xsoptxagn, xsoptxagnf, xspcfabs, xspegpwrlw, xspexrav, xspexriv, xsphabs, xsplabs, xsplcabs, xsposm, xspowerlaw, xspshock, xspwab, xsraymond, xsredden, xsredge, xsrefsch, xssedov, xssirf, xssmedge, xsspexpcut, xsspline, xssrcut, xssresc, xssss_ice, xsstep, xsswind1, xstbabs, xstbgrain, xstbvarabs, xsuvred, xsvapec, xsvarabs, xsvbremss, xsvequil, xsvgadem, xsvgnei, xsvmcflow, xsvmeka, xsvmekal, xsvnei, xsvnpshock, xsvphabs, xsvpshock, xsvraymond, xsvsedov, xsvvapec, xswabs, xswndabs, xsxion, xszbbody, xszbremss, xszdust, xszedge, xszgauss, xszhighect, xszigm, xszpcfabs, xszphabs, xszpowerlw, xszredden, xszsmdust, xsztbabs, xszvarabs, xszvfeabs, xszvphabs, xszwabs, xszwndabs, xszxipcf