NICER Observation of the Temporal and Spectral Evolution of Swift J1818.0−1607: A Missing Link between Magnetars and Rotation-powered Pulsars

Chin-Ping Hu, Beste Begiçarslan, Tolga Güver, Teruaki Enoto, George Younes, Takanori Sakamoto, Paul S. Ray, Tod E. Strohmayer, Sebastien Guillot, Zaven Arzoumanian, David M. Palmer, Keith C. Gendreau, C. Malacaria, Zorawar Wadiasingh, Gaurava K. Jaisawal, Walid A. Majid

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

We report on the hard X-ray burst and the first ~100 days of NICER monitoring of the soft X-ray temporal and spectral evolution of the newly discovered magnetar Swift J1818.0−1607. The burst properties are typical of magnetars with a duration of T 90 = 10 ± 4 ms and a temperature of kT = 8.4 ± 0.7 keV. The 2–8 keV pulse shows a broad, single-peak profile with a pulse fraction increasing with time from 30% to 43%.
Original languageEnglish
JournalAstrophysical Journal Supplement Series
Volume902
Issue number1
Number of pages10
ISSN0067-0049
DOIs
Publication statusPublished - 2020

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