|
par1= | continuum temperature, keV |
par2= | line temperature, keV |
par3 | Metal abundances (He fixed at that defined by the abund command). The elements included are C, N, O, Ne, Mg, Al, Si, S, Ar, Ca, Fe, Ni. Relative abundances are set by the abund command. The trace element abundances are from xset APEC_TRACE_ABUND, the default is 1.0. |
par4 | Redshift, z |
norm | , where is the angular diameter distance to the source (cm), is the volume element (cm), and and are the electron and H densities (cm), respectively |
For the vtapec variant the parameters are as follows.
par1= | continuum temperature, keV |
par2= | line temperature, keV |
par3–par15 | Abundances for He, C, N, O, Ne, Mg,Al, Si, S, Ar, Ca, Fe, Ni wrt Solar (defined by the abund command). The trace element abundances are from xset APEC_TRACE_ABUND, the default is 1.0. |
par16 | redshift, z |
norm | , where is the angular diameter distance to the source (cm), is the volume element (cm), and and are the electron and H densities (cm), respectively |
For the vvtapec variant the parameters are as follows.
par1= | continuum temperature, keV |
par2= | line temperature, keV |
par3–par32 | Abundances for H, He, Li, Be, B, C, N, O, F, Ne, Na, Mg, Al, Si, P, S, Cl, Ar, K, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn wrt Solar (defined by the abund command) |
Par33 | redshift, z |
norm | , where is the angular diameter distance to the source (cm), is the volume element (cm), and and are the electron and H densities (cm), respectively |
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Last modified: Friday, 23-Aug-2024 13:20:40 EDT