NICER observation list: Target ID 251501

Abstract

Magnetar emission is powered by the instability and/or decay of their huge magnetic fields. They emit outbursts, where the X-ray luminosity rises up to 3 orders of magnitude, and subsequently decays back to the quiescent value on different timescales. The mechanism responsible for the activation and the long-term evolution of these outbursts is still poorly understood. We propose a timing campaign of the magnetar 1E 1547-5408 to assess its current rotational properties while recovering from its last major outburst about a decade ago, and test the theoretical models proposed to explain magnetar outbursts. The proposed observations will be crucial to understand the driver of the prolonged, sustained emission of this source and, ultimately, the physical mechanisms behind magnetar outbursts.
Obsid RA DEC l b Start End Exposure Number of
Modules
Number of
Processing
Status of
Processing
Date of
Processing
Public
date
2515010101 237.730 -54.311 327.236 -0.137 58627.9997 58628.3961 2590.0 52 2 VALIDATED 58632.8 58642
2515010201 237.729 -54.309 327.237 -0.135 58629.0323 58629.3653 3651.0 52 3 VALIDATED 58633.6 58643
2515010301 237.729 -54.307 327.238 -0.133 58633.2266 58633.4958 2591.0 52 3 VALIDATED 58637.7 58647
2515010401 237.726 -54.307 327.237 -0.132 58648.1056 58648.3106 3545.0 52 2 VALIDATED 58653.7 58662
2515010501 237.726 -54.307 327.237 -0.132 58658.0314 58658.2368 3728.0 52 2 VALIDATED 58662.9 58672
2515010601 237.725 -54.302 327.239 -0.128 58673.0568 58673.3252 3391.0 52 3 VALIDATED 58677.6 58687
2515010701 237.725 -54.307 327.237 -0.132 58687.8134 58687.9613 2287.7 52 2 VALIDATED 58690.8 58701