NICER observation list: Target ID 660801

Abstract

We are requesting for a joint NICER and Swift (X-ray + UV) monitoring of two X-ray bright, repeating stellar tidal disruption events (TDEs) AT2018fyk and eRASStJ045650. Joint NICER+Swift campaign over the past 4 years (2018-2022) has captured a second outburst from these TDEs which has been interpreted as the signature of a repeating partial disruption. Our main goals are 1) to capture the full evolution of AT2018fyk's second outburst and additional outbursts from eRASStJ045650, and 2) acquire high-quality X-ray and UV data during these subsequent outbursts and compare them with previous flares. Our goals require long-term monitoring, high quality X-ray spectra, high X-ray sensitivity, and UV coverage. This makes NICER+Swift the best combination for this study.
Obsid RA DEC l b Start End Exposure Number of
Modules
Number of
Processing
Status of
Processing
Date of
Processing
Public
date
6608010101 342.569 -44.868 348.634 -60.035 60059.9917 60060.2642 5226.0 48 5 VALIDATED 60070.1 60074
6608010201 342.567 -44.864 348.642 -60.036 60092.3727 60092.6368 3925.0 51 6 VALIDATED 60107.4 60106
6608010301 342.567 -44.864 348.643 -60.036 60120.3044 60120.9567 2542.7 51 4 VALIDATED 60131.8 60134
6608010302 342.568 -44.861 348.647 -60.038 60121.0157 60121.3421 2136.0 51 3 VALIDATED 60131.9 60135
6608010401 342.568 -44.863 348.643 -60.037 60149.8596 60149.9299 1263.0 51 4 VALIDATED 60164.0 60163
6608010402 342.568 -44.864 348.643 -60.037 60149.9905 60150.2496 3000.0 51 4 VALIDATED 60164.0 60164
6608010501 342.566 -44.863 348.645 -60.036 60180.7016 60180.9648 2622.0 51 3 VALIDATED 60192.9 60194
6608010601 342.568 -44.864 348.643 -60.037 60210.1551 60210.6808 4392.0 51 4 VALIDATED 60220.8 60224
6608010701 342.567 -44.864 348.643 -60.036 60239.9016 60239.9789 1058.0 51 4 VALIDATED 60251.1 60253
6608010702 342.567 -44.864 348.642 -60.036 60240.0300 60240.2368 1339.0 51 4 VALIDATED 60251.2 60254
6608010801 342.566 -44.865 348.642 -60.036 60265.3126 60265.9653 0.0 42 3 VALIDATED 60275.9 60279