NICER observation list: Target ID 251801

Abstract

AGN Reverberation mapping in is a well established technique in the optical/UV, where delays between the H-beta line and the continuum are used to probe the optical broad line region (BLR) and estimate the black hole mass. The techniques was applied recently in X-rays, obtaining an upper limit to the delay of the narrow Fe-K line in NGC 4151 relative to the continuum of ~6 days. This is a new powerful tool to probe the circumnuclear environment. We propose monitoring this source to constrain the delay instead of the upper limit. The unique flexibility and sensitivity of NICER will allow unprecedented view of the line emitting region, and of the location of the cold gas and its relation to the ionized BLR, guiding development of accretion and BLR formation models.
Obsid RA DEC l b Start End Exposure Number of
Modules		 Number of
Processing		 Status of
Processing		 Date of
Processing		 Public
date
2518010101 182.634 39.406 155.080 75.062 58572.8869 58572.9819 4082.0 52 3 VALIDATED 58576.9 58766
2518010102 182.635 39.405 155.079 75.063 58573.0158 58573.9990 27992.0 52 3 VALIDATED 58578.5 58767
2518010103 182.635 39.406 155.079 75.063 58574.0458 58574.9782 30446.0 52 3 VALIDATED 58579.9 58768
2518010104 182.636 39.406 155.078 75.063 58575.0123 58575.5579 19478.0 52 3 VALIDATED 58991.9 58769
2518010201 182.635 39.405 155.080 75.064 58577.6033 58577.6192 892.0 52 3 VALIDATED 58582.7 58771
2518010301 182.636 39.405 155.079 75.063 58579.2620 58579.2835 1584.0 52 2 VALIDATED 58585.9 58773
2518010401 182.636 39.405 155.078 75.064 58581.3232 58581.3400 1195.0 52 1 VALIDATED 58586.0 58775
2518010501 182.635 39.405 155.079 75.063 58583.3298 58583.3470 1375.0 52 2 VALIDATED 58587.9 58777
2518010601 182.635 39.405 155.079 75.063 58585.2646 58585.4023 1814.0 52 3 VALIDATED 58590.7 58779
2518010701 182.636 39.403 155.085 75.065 58587.1335 58587.2058 1287.0 52 2 VALIDATED 58602.8 58781
2518010801 182.636 39.406 155.077 75.063 58600.0273 58600.0368 42.0 52 2 VALIDATED 58603.6 58794
2518010901 182.638 39.407 155.068 75.064 58601.3213 58601.3963 1317.0 52 3 VALIDATED 58604.7 58795
2518011001 182.636 39.406 155.075 75.063 58603.1156 58603.2520 274.0 52 3 VALIDATED 58606.6 58797
2518011201 182.636 39.406 155.077 75.063 58607.6873 58607.7021 987.0 52 3 VALIDATED 58610.7 58801
2518011301 182.637 39.405 155.078 75.064 58609.6250 58609.6477 1787.0 52 3 VALIDATED 58612.6 58803
2518011401 182.637 39.405 155.076 75.064 58611.6356 58611.7086 1302.0 52 3 VALIDATED 58615.7 58805
2518011601 182.637 39.406 155.075 75.063 58605.3047 58605.3199 935.0 52 3 VALIDATED 58608.7 58799
2518011701 182.637 39.405 155.076 75.065 58613.8827 58613.8986 1031.0 52 2 VALIDATED 58616.6 58807
2518011702 182.637 39.405 155.077 75.064 58615.6859 58615.7023 1253.0 52 3 VALIDATED 58618.7 58809
2518011703 182.636 39.406 155.078 75.063 58617.1543 58617.1833 2372.0 52 3 VALIDATED 58624.1 58811
2518011801 182.636 39.405 155.079 75.064 58619.4871 58619.5014 1188.0 52 1 VALIDATED 58624.2 58813
2518011901 182.637 39.406 155.076 75.064 58621.4674 58621.4810 891.0 52 3 VALIDATED 58625.6 58815
2518012001 182.636 39.406 155.077 75.063 58623.3352 58623.3481 775.0 52 3 VALIDATED 58627.6 58817
2518012101 182.636 39.406 155.076 75.063 58625.2824 58625.4826 1027.0 52 2 VALIDATED 58631.8 58819
2518012201 182.636 39.406 155.077 75.063 58626.8783 58626.9484 602.0 52 1 VALIDATED 58631.9 58820
2518012301 182.636 39.407 155.076 75.062 58627.0070 58627.0778 616.0 52 1 VALIDATED 58631.9 58821
2518012401 182.635 39.406 155.078 75.063 58632.6203 58632.6900 475.0 52 3 VALIDATED 58636.6 58826
2518012501 182.635 39.406 155.080 75.063 58632.7491 58632.8190 438.0 52 3 VALIDATED 58636.7 58826
2518012601 182.637 39.406 155.075 75.064 58635.5160 58635.5938 1644.0 52 3 VALIDATED 58639.6 58829
2518012701 182.637 39.406 155.074 75.063 58637.6449 58637.7208 1107.7 52 3 VALIDATED 58642.9 58831
2518012801 182.635 39.405 155.079 75.063 58643.9151 58643.9873 988.0 52 3 VALIDATED 58648.9 58837
2518012802 182.635 39.405 155.079 75.063 58644.0443 58644.0521 396.0 52 2 VALIDATED 58648.9 58838
2518012901 182.635 39.406 155.078 75.063 58645.4598 58645.4748 1144.0 52 2 VALIDATED 58652.6 58839
2518013001 182.636 39.406 155.078 75.063 58646.9984 58647.0218 1277.0 52 3 VALIDATED 58653.7 58841
2518013301 182.635 39.406 155.079 75.063 58649.1818 58649.1997 1368.0 52 2 VALIDATED 58655.7 58843
2518013401 182.635 39.406 155.079 75.063 58650.4738 58650.4966 1824.0 52 3 VALIDATED 58658.9 58844
2518013402 182.636 39.406 155.078 75.063 58650.9896 58651.0822 2758.0 52 2 VALIDATED 58658.9 58845
2518013501 182.635 39.406 155.080 75.063 58653.5649 58653.5884 898.0 50 2 VALIDATED 58659.9 58847
2518013601 182.635 39.406 155.078 75.063 58655.1763 58655.1933 1329.0 52 2 VALIDATED 58660.9 58849
2518013701 182.635 39.405 155.079 75.063 58657.1750 58657.2487 1434.0 52 2 VALIDATED 58662.8 58851
2518013801 182.635 39.405 155.080 75.063 58659.1726 58659.2465 1412.0 52 2 VALIDATED 58664.8 58853
2518013901 182.635 39.405 155.081 75.063 58661.1061 58661.1847 1906.0 52 2 VALIDATED 58665.6 58855
2518014001 182.635 39.406 155.078 75.063 58663.0413 58663.0637 669.0 52 3 VALIDATED 58667.6 58857
2518014101 182.627 39.406 155.097 75.059 58665.0412 58665.1160 0.0 52 2 VALIDATED 58669.7 58859
2518014201 182.638 39.408 155.068 75.063 58673.7066 58673.7222 1189.0 52 3 VALIDATED 58677.6 58867
2518014601 182.640 39.409 155.058 75.062 58675.7137 58675.7280 1039.0 52 2 VALIDATED 58679.7 58869
2518014701 182.640 39.406 155.066 75.065 58677.2512 58677.2660 1186.0 52 3 VALIDATED 58681.6 58871
2518014801 182.640 39.406 155.066 75.065 58678.0244 58678.1088 621.0 52 3 VALIDATED 58682.8 58872
2518014802 182.638 39.409 155.064 75.061 58679.0011 58679.0072 385.0 52 3 VALIDATED 58684.5 58873
2518014901 182.637 39.407 155.070 75.062 58679.0656 58679.0718 380.0 52 3 VALIDATED 58684.5 58873
2518014902 182.637 39.405 155.076 75.064 58680.8116 58680.8875 1319.0 50 3 VALIDATED 58686.6 58874
2518014903 182.636 39.406 155.076 75.063 58681.3972 58681.5965 227.0 50 3 VALIDATED 58687.8 58875
2518015001 182.637 39.405 155.076 75.064 58684.7241 58684.8861 747.0 50 3 VALIDATED 58690.1 58878
2518015101 182.637 39.405 155.076 75.064 58684.9992 58685.0623 0.0 50 2 VALIDATED 58690.1 58879
2518015201 182.636 39.406 155.077 75.063 58687.1756 58687.2058 376.0 50 2 VALIDATED 58690.8 58881
2518015301 182.636 39.405 155.077 75.064 58688.9796 58689.0086 243.0 50 3 VALIDATED 58695.8 58883
2518015401 182.636 39.406 155.076 75.064 58691.0419 58691.0597 0.0 50 1 VALIDATED 58695.9 58885
2518015501 182.636 39.406 155.077 75.063 58692.9757 58692.9898 0.0 50 2 VALIDATED 58696.7 58886
2518015502 182.636 39.406 155.078 75.063 58693.0400 58693.0542 0.0 49 3 VALIDATED 58697.7 58887
2518015601 182.636 39.405 155.077 75.063 58695.1675 58695.1911 0.0 50 3 VALIDATED 58699.6 58889
2518015701 182.636 39.406 155.077 75.063 58696.9725 58696.9856 0.0 50 3 VALIDATED 58700.7 58890
2518015702 182.636 39.406 155.077 75.063 58697.0377 58697.0500 0.0 50 3 VALIDATED 58701.6 58891
2518015801 182.636 39.405 155.078 75.064 58699.0363 58699.1132 0.0 50 3 VALIDATED 58704.7 58893
2518015901 182.636 39.406 155.077 75.063 58701.0346 58701.1118 0.0 50 2 VALIDATED 58705.6 58895