This page presents revised calculations of the encircled energy values published in
Sirianni et al. (2005, hereafter S05). Tabled corrections for WFC and HRC on this page are from Bohlin ISR 16-03 (2016), corrections for SBC are from Avila et al ISR 16-05 (2016).
Encircled Energy fractions for K type and hotter stars
in 0.5" and 1.0" apertures.
Table of WFC Encircled Energy corrections from
Table of HRC Encircled Energy corrections from
Table of SBC Encircled Energy corrections from
Encircled Energy within 0.5" for very cool stars as a function of spectral type. Updated values from ISR 16-03 are flagged with an asterisk, while the rest are from S05. For unspecified entires, refer to Table 1.
As for Table 2, except that the Encircled Energy fractions are for a 1.0" aperture.
Avila et al 2016, Instrument Science Report, ACS 2016-05, (Baltimore:STScI)
Bohlin, R. C. 2016,
Instrument Science Report, ACS 2016-03, (Baltimore:STScI)
Sirianni, M., et
al. 2005, PASP, 117, 1049S (S05)
Last modified on Nov 10, 2016.