NICER observation list: Target ID 467201

Abstract

zeta Pup is a well-studied, archetypal O-type supergiant with more than one period of cyclical variability detected in multiwavelength studies. Previous Chandra and XMM-Newton observations have shown the presence of a 1.78-d period, believed to be linked to rotation, and another, longer unexplained period of around 5-6d. Monitoring this star with NICER using two separate observing cadences, we seek to probe both signals and their coherence timescales, as well as constrain the presence of possible additional stochastic variability. By combining this dataset with simultaneous BRITE space-based optical photometry, we will trace these signals back to the wind structures -- both large-scale and possibly small-scale -- that cause them, and gain a deeper understanding of the outflows of OB stars.
Obsid RA DEC l b Start End Exposure Number of
Modules		 Number of
Processing		 Status of
Processing		 Date of
Processing		 Public
date
4672010101 120.896 -40.003 255.976 -4.706 59548.9927 59549.9738 4960.0 52 8 VALIDATED 59559.6 59563
4672010201 120.896 -40.004 255.976 -4.706 59550.1373 59550.9373 5680.0 52 7 VALIDATED 59560.6 59564
4672010301 120.896 -40.003 255.976 -4.706 59551.1157 59551.9127 4788.0 52 7 VALIDATED 59561.6 59565
4672010401 120.896 -40.003 255.976 -4.706 59552.0847 59552.8685 3438.0 52 7 VALIDATED 59562.6 59566
4672010501 120.897 -40.004 255.977 -4.706 59553.0556 59553.8373 4385.0 52 7 VALIDATED 59563.6 59567
4672010601 120.896 -40.003 255.976 -4.706 59554.0171 59554.9968 4259.0 52 7 VALIDATED 59565.7 59568
4672010701 120.896 -40.003 255.976 -4.706 59555.1745 59555.9630 5021.0 52 6 VALIDATED 59565.8 59569
4672010801 120.896 -40.004 255.976 -4.706 59556.1637 59556.5618 1629.0 52 6 VALIDATED 59566.6 59570
4672010901 120.896 -40.003 255.976 -4.706 59557.0581 59557.8525 4797.0 52 6 VALIDATED 59567.6 59571
4672011001 120.896 -40.003 255.976 -4.706 59558.0146 59558.8211 6344.0 52 7 VALIDATED 59568.6 59572
4672011101 120.896 -40.003 255.976 -4.706 59559.0049 59559.9775 4875.0 52 7 VALIDATED 59569.6 59573
4672011201 120.896 -40.004 255.976 -4.706 59560.1624 59560.9318 1667.0 52 7 VALIDATED 59570.6 59574
4672011202 120.896 -40.004 255.976 -4.706 59561.1314 59561.1384 164.0 52 5 VALIDATED 59570.6 59575
4672011301 120.897 -40.004 255.977 -4.706 59561.3100 59561.9032 2204.0 52 6 VALIDATED 59571.6 59575
4672011401 120.897 -40.004 255.976 -4.706 59562.0846 59562.8713 3247.0 52 6 VALIDATED 59572.6 59576
4672011501 120.897 -40.003 255.976 -4.705 59563.0530 59563.8394 2695.0 52 7 VALIDATED 59573.6 59577
4672011601 120.896 -40.003 255.976 -4.706 59564.0241 59564.8678 2263.0 52 7 VALIDATED 59574.6 59578
4672011701 120.896 -40.003 255.976 -4.705 59565.0536 59565.8369 2679.0 52 7 VALIDATED 59575.6 59579
4672011801 120.896 -40.003 255.976 -4.706 59566.0217 59566.9984 2269.0 52 7 VALIDATED 59576.8 59580
4672011901 120.895 -40.002 255.975 -4.706 59567.1843 59567.9699 1886.0 52 7 VALIDATED 59577.7 59581
4672012001 120.895 -40.002 255.974 -4.706 59568.1524 59568.9380 2615.0 52 7 VALIDATED 59578.8 59582
4672012101 120.893 -40.001 255.973 -4.706 59569.1207 59569.9065 2839.0 52 7 VALIDATED 59579.8 59583
4672012201 120.894 -40.002 255.974 -4.706 59570.0889 59570.8940 3209.0 52 7 VALIDATED 59580.6 59584
4672012301 120.896 -40.003 255.976 -4.706 59571.0573 59571.8412 2896.0 52 6 VALIDATED 59580.7 59585
4672012401 120.896 -40.004 255.976 -4.706 59572.0252 59572.8208 3041.0 52 6 VALIDATED 59582.8 59586
4672012402 120.895 -40.001 255.973 -4.705 59572.9910 59573.0009 115.0 52 6 VALIDATED 59582.8 59587
4672012501 120.895 -40.001 255.974 -4.705 59573.1914 59573.9785 4394.0 52 9 VALIDATED 59589.7 59587
4672012601 120.892 -39.999 255.971 -4.706 59574.1606 59574.3692 1696.0 52 8 VALIDATED 59588.7 59588
4672012701 120.894 -40.000 255.972 -4.706 59575.3264 59575.5277 1848.0 52 6 VALIDATED 59585.8 59589
4672012801 120.894 -40.001 255.973 -4.706 59576.2815 59576.4981 1169.0 52 6 VALIDATED 59585.8 59590
4672012901 120.894 -40.000 255.972 -4.705 59577.2525 59577.8525 2981.0 52 6 VALIDATED 59587.8 59591
4672013001 120.894 -40.000 255.972 -4.706 59578.0270 59578.8068 2480.0 52 6 VALIDATED 59588.7 59592
4672013002 120.897 -39.998 255.972 -4.703 59578.9984 59579.0137 610.0 52 7 VALIDATED 59588.8 59593
4672013101 120.895 -40.003 255.975 -4.706 59579.1856 59579.9789 5301.0 51 7 VALIDATED 59589.7 59593
4672013201 120.895 -40.003 255.975 -4.706 59580.1576 59580.9465 5496.0 52 9 VALIDATED 59604.0 59594