L2KEV_J07#
Name#
L2KEV_J07
Purpose#
Calculates the 2 keV monochromatic luminosity of an AGN given its intrinsic monochromatic luminosity at 2500 Angstroms using the Just et al. (2007) relationship:
\(\alpha_{ox} = -0.137 \log(L_{2500}) + 2.638\)
for \(L_{2500}\) in \(\rm ergs\ s^{-1}\ Hz^{-1}\), and the definition of \(\alpha_{ox}\), the UV-to-X-ray slope:
\(\alpha_{ox} = -0.3838 \log(L_{2500} / L_{\rm 2keV})\).
Calling Sequence#
L2keV = L2keV_J07(L2500 [, dalpha = , /error_check])
Input#
L2500
float or double array(…)The rest-frame 2500 Angstrom monochromatic luminosity \([L_\odot\ {\rm Hz}^{-1}]\).
Optional Inputs#
dalpha
float or double array(…)Deviation from Just et al. (2007) relationship. A “fudge factor” added to the expected value of \(\alpha_{ox}\). (Default =
0.0
)error_check
flagIf set, all inputs are checked for errors. Otherwise, all inputs are assumed to be of correct format.
Outputs#
L2keV
double array(…)The 2 keV monochromatic luminosity \([L_\odot\ {\rm Hz}^{-1}]\).
Reference#
Just, D. W., Brandt, W. N., Shemmer, O., et al. 2007, ApJ, 665, 2
Modification History#
2021/03/19: Created (Erik B. Monson)
2022/03/16: Moved to separate file and documentation improved (Erik B. Monson).
2022/06/20: Replaced
!cv
with!lightning_cgs
(Keith Doore)2022/06/20: Updated documentation (Keith Doore)
2022/06/20: Added error handling (Keith Doore)
2022/06/20: Added
error_check
keyword to do error handling (Keith Doore)2022/06/20: Removed
alpha_ox_L2500_J07
function, since only one line of code (Keith Doore)