L2KEV_LR17#

Name#

L2KEV_LR17

Purpose#

Calculates the the 2 keV monochromatic luminosity of an AGN given its intrinsic monochromatic luminosity at 2500 Angstroms using the Lusso & Risaliti (2017) relationship:

\(\log(L_{\rm 2keV}) = 0.633 (\log(L_{2500A}) - 25) - 1.959 + 25\) \(\log(L_{\rm 2keV}) = 0.633 \log(L_{2500A}) + 7.216\)

where both monochromatic luminosities are in \(\rm ergs\ s^{-1}\ Hz^{-1}\).

Calling Sequence#

L2keV = L2keV_LR17(L2500 [, /error_check])

Input#

L2500float or double array(…)

The rest-frame 2500 Angstrom monochromatic luminosity \([L_\odot\ {\rm Hz}^{-1}]\).

Optional Input#

error_checkflag

If set, the input is checked for errors. Otherwise, the input is assumed to be of correct format.

Output#

L2keVdouble array(…)

The 2 keV monochromatic luminosity \([L_\odot\ {\rm Hz}^{-1}]\).

Notes#

The relation quoted above is from Kubota & Done (2018) and differs slightly from that in Lusso & Risaliti (2017), though it is still attributed to that paper. We also assume \(v_{FWHM} = 2000\ {\rm km\ s}^{-1}\) as measured from the Mg II line.

References#

Modification History#

  • 2021/07/06: 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)