NICER observation list: Target ID 566001

Abstract

Recent measurement of AGN accretion disk sizes rely on the interpretation of UV/optical continuum time delays as light-travel times, which assumes that X-ray variations drive the UV/optical variations. This 'X-ray reprocessing' model requires that X-ray heating of the accretion disk produces an X-ray reflection spectrum that is closely correlated with the UV/optical variations. We propose testing this model by searching for correlations of the X-ray reflection spectra in NGC 4051 with optical variations. We will use NICER to produce a time series of high SNR X-ray reflection spectra that are concurrent with a nearly continuous TESS light curve. Correlated variations wills strongly support the X-ray reprocessing paradigm, and a lack of correlation will constrain alternative models.
Obsid RA DEC l b Start End Exposure Number of
Modules
Number of
Processing
Status of
Processing
Date of
Processing
Public
date
5660010101 180.790 44.531 148.884 70.086 59639.0525 59639.3269 3720.0 52 6 VALIDATED 59649.8 59653
5660010201 180.791 44.531 148.882 70.085 59640.2787 59640.4877 3411.0 52 5 VALIDATED 59653.8 59654
5660010301 180.790 44.531 148.884 70.086 59641.4417 59641.7750 3899.0 52 5 VALIDATED 59652.3 59655
5660010401 180.790 44.531 148.883 70.085 59642.1507 59642.8694 3486.0 52 4 VALIDATED 59652.3 59656
5660010501 180.790 44.531 148.884 70.086 59643.1202 59643.9644 2590.0 52 3 VALIDATED 59653.9 59657
5660010601 180.790 44.531 148.884 70.086 59644.1513 59644.8583 1859.0 52 7 VALIDATED 59662.1 59658
5660010701 180.790 44.531 148.883 70.085 59645.1053 59645.8907 3225.0 52 5 VALIDATED 59659.4 59659
5660010801 180.791 44.532 148.882 70.085 59646.2039 59646.9231 2862.0 52 5 VALIDATED 59659.5 59660
5660010901 180.790 44.531 148.883 70.085 59647.1087 59647.9556 3098.9 52 5 VALIDATED 59662.2 59661
5660011001 180.791 44.532 148.882 70.085 59648.2048 59648.8590 2708.0 52 4 VALIDATED 59662.2 59662
5660011101 180.790 44.532 148.883 70.085 59649.1108 59649.2463 1476.0 52 2 VALIDATED 59654.2 59663
5660011301 180.790 44.532 148.882 70.085 59652.3977 59652.9850 2705.0 52 4 VALIDATED 59663.8 59666
5660011401 180.790 44.531 148.884 70.085 59653.1704 59653.8914 2570.0 52 6 VALIDATED 59666.0 59667
5660011501 180.790 44.531 148.883 70.085 59654.2683 59654.8611 3576.0 52 5 VALIDATED 59666.1 59668
5660011601 180.790 44.531 148.883 70.085 59655.3002 59655.9581 3362.0 52 3 VALIDATED 59666.1 59669
5660011701 180.790 44.532 148.882 70.085 59656.2887 59656.8644 1698.0 52 4 VALIDATED 59672.8 59670
5660011801 180.791 44.531 148.882 70.085 59657.3667 59657.8938 2481.0 52 4 VALIDATED 59668.8 59671
5660011901 180.791 44.531 148.882 70.086 59658.0734 59658.5375 2319.0 52 6 VALIDATED 59672.8 59672
5660012001 180.790 44.531 148.883 70.085 59659.1083 59659.8944 2860.0 52 5 VALIDATED 59670.9 59673
5660012101 180.790 44.531 148.884 70.085 59660.1407 59660.9213 3337.0 52 5 VALIDATED 59671.0 59674
5660012201 180.790 44.531 148.884 70.085 59661.0417 59661.9752 3890.0 52 4 VALIDATED 59672.8 59675
5660012301 180.789 44.531 148.885 70.085 59662.2057 59662.9884 3196.0 52 4 VALIDATED 59672.9 59676
5660012401 180.790 44.531 148.883 70.085 59663.2389 59663.7620 2425.0 52 7 VALIDATED 59676.8 59677
5660012501 180.790 44.531 148.883 70.086 59664.0130 59664.7925 2585.0 52 5 VALIDATED 59675.7 59678