NICER observation list: Target ID 764605

Abstract

The canonical picture of Tidal Disruption Events (TDEs) suggests that the soft X-ray emission should rise sharply then decline smoothly over months, but in recent years, NICER and Swift high-cadence monitoring has revealed that the X-rays frequently do not follow this simple prescription. Furthering our understanding requires more complete late-time coverage to search for rebrightening, measure spectral evolution, and characterize any short-term variability. Based on a systematic X-ray archival analysis, we have identified 6 targets well suited for late-time follow-up. We propose to obtain NICER late-time follow-up of these TDEs, in order to test how they compare to evolution predicted by models of viewing-angle unification and slim disk evolution.
Obsid RA DEC l b Start End Exposure Number of
Modules		 Number of
Processing		 Status of
Processing		 Date of
Processing		 Public
date
7646050101 185.507 16.997 267.551 77.798 60356.3581 60356.9493 1426.0 50 7 VALIDATED 60377.2 60550
7646050102 185.505 16.995 267.547 77.796 60357.0736 60357.9861 2614.7 50 7 VALIDATED 60379.1 60551
7646050201 185.504 16.997 267.537 77.796 60367.0169 60367.9877 3882.5 50 2 VALIDATED 60385.1 60561
7646050202 185.506 16.999 267.539 77.800 60368.0335 60368.1718 1107.0 50 2 VALIDATED 60385.2 60562
7646050301 185.505 16.996 267.544 77.796 60381.0843 60381.9964 3813.2 50 3 VALIDATED 60393.5 60575
7646050302 185.505 16.996 267.543 77.796 60382.1174 60382.1899 1768.5 50 3 VALIDATED 60393.7 60576
7646050401 185.505 16.996 267.543 77.796 60396.1312 60396.8924 1223.0 50 6 VALIDATED 60409.8 60590
7646050402 185.504 16.995 267.543 77.795 60397.0808 60397.8609 2182.0 50 5 VALIDATED 60410.0 60591
7646050501 185.505 16.992 267.554 77.793 60409.6676 60409.8691 259.0 50 4 VALIDATED 60421.2 60603
7646050502 185.505 16.994 267.550 77.795 60410.0519 60410.8360 1211.1 50 4 VALIDATED 60421.3 60604
7646050503 185.507 16.992 267.562 77.794 60411.0239 60411.4241 1880.0 50 5 VALIDATED 60423.1 60605
7646050504 185.507 16.991 267.565 77.793 60772.6199 60772.6230 219.0 50 6 VALIDATED 60787.2 60966
7646050601 185.506 16.996 267.547 77.796 60423.0248 60423.9352 1626.0 50 3 VALIDATED 60437.4 60617
7646050602 185.506 16.995 267.551 77.796 60424.1204 60424.8382 1672.0 50 3 VALIDATED 60437.5 60618
7646050603 185.507 16.996 267.550 77.797 60425.0227 60425.0317 138.0 50 2 VALIDATED 60437.6 60619
7646050701 185.504 16.997 267.537 77.796 60441.3475 60441.9977 5973.0 41 4 VALIDATED 60452.2 60635
7646050702 185.504 16.996 267.541 77.796 60442.0565 60442.5803 3215.0 41 5 VALIDATED 60453.8 60636
7646050703 185.505 16.996 267.543 77.797 60456.1856 60456.8361 1422.0 50 3 VALIDATED 60473.2 60650
7646050801 185.506 16.996 267.549 77.797 60471.2785 60471.7977 1111.0 52 2 VALIDATED 60486.7 60665
7646050802 185.504 16.995 267.543 77.795 60472.0488 60472.8285 1715.0 52 2 VALIDATED 60486.8 60666
7646050803 185.505 16.995 267.544 77.796 60473.0130 60473.0218 65.0 52 2 VALIDATED 60487.0 60667
7646050901 185.507 16.998 267.546 77.799 60489.5414 60489.9343 1134.0 52 3 VALIDATED 60500.9 60683
7646050902 185.508 16.999 267.547 77.800 60490.2519 60490.5736 1482.0 52 4 VALIDATED 60501.0 60684