NICER, NuSTAR, and Swift-XRT observations of the Magnetar 1E 1841-045

Since the reported bursting activity of the magnetar 1E 1841-045 with Swift-BAT (ATEL #16784), Fermi-GBM (ATEL #16786), and NICER (ATEL #16789), we have acquired more NICER observations of the target, covering the time period 2024 August 20 at 23:28 to 2024 August 31 at 10:58 UT, for a total exposure of 27.6 ks. Additionally, we acquired a NuSTAR Directors Discretionary Time observation starting on 2024 August 29 at 04:21 UT for a total exposure of approximately 50 ks. Lastly, we analyze the Swift-XRT photon counting mode observation acquired beginning 2024-08-22 at 03:52 UT for a total of 1.8 ks. The NICER monitoring shows that the source bursting activity has strongly diminished since August 20. We detect only two faint bursts in addition to the ones reported in ATEL #16789.

Publication Details

Journal
Maryland Shared Open Access Repository (USMAI Consortium)
Published
2024-09-01
DOI
https://doi.org/10.13016/m2yv2r-sw5m
Primary Topic
Pulsars and Gravitational Waves Research
Type
article
Field-Weighted Citation Impact
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article

NICER, NuSTAR, and Swift-XRT observations of the Magnetar 1E 1841-045

Maryland Shared Open Access Repository (USMAI Consortium)
Pulsars and Gravitational Waves Research
article

NICER, NuSTAR, and Swift-XRT observations of the Magnetar 1E 1841-045

article en

Abstract

Since the reported bursting activity of the magnetar 1E 1841-045 with Swift-BAT (ATEL #16784), Fermi-GBM (ATEL #16786), and NICER (ATEL #16789), we have acquired more NICER observations of the target, covering the time period 2024 August 20 at 23:28 to 2024 August 31 at 10:58 UT, for a total exposure of 27.6 ks. Additionally, we acquired a NuSTAR Directors Discretionary Time observation starting on 2024 August 29 at 04:21 UT for a total exposure of approximately 50 ks. Lastly, we analyze the Swift-XRT photon counting mode observation acquired beginning 2024-08-22 at 03:52 UT for a total of 1.8 ks. The NICER monitoring shows that the source bursting activity has strongly diminished since August 20. We detect only two faint bursts in addition to the ones reported in ATEL #16789.

Maryland Shared Open Access Repository (USMAI Consortium)
Openalex Percentile: Top 77%
Pulsars and Gravitational Waves Research
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