output
19922026
Showing 2020 · astro-ph.HEShow all

13 papers · 2 filters

astro-ph.HE2020★ 1 cited

The Mysterious Magnetospheres of Magnetars

Matthew G. Baring, Zorawar Wadiasingh, Peter L. Gonthier +2

Magnetars are the most luminous compact objects in the stellar mass range observed in the Milky Way, with giant flares of hard X-ray power ~10^45 erg/sec being detected from three…

astro-ph.HE2020★ 12 cited

Persistent Emission Properties of SGR J1935+2154 During Its 2020 Active Episode

Ersin Gogus, Matthew G. Baring, Chryssa Kouveliotou +6

We present detailed spectral and temporal characteristics of the persistent X-ray emission of SGR J1935+2154 based on our XMM-Newton and Chandra observations taken in the aftermath…

astro-ph.HE2020★ 6 cited

Medium-band observation of the neutrino emitting blazar, TXS 0506+056

Sungyong Hwang, Myungshin Im, Yoon Chan Taak +15

TXS 0506+056 is a blazar that has been recently identified as the counterpart of the neutrino event IceCube-170922A. Understanding blazar type of TXS 0506+056 is important to const…

astro-ph.HE2020★ 15 cited

Polarized Radiation Transfer in Neutron Star Surface Layers

Joseph A. Barchas, Kun Hu, Matthew G. Baring

The study of polarized radiation transfer in the highly-magnetized surface locales of neutron stars is of great interest to the understanding of accreting X-ray pulsars, rotation-p…

astro-ph.HE2020★ 98 cited

SNEWS 2.0: A Next-Generation SuperNova Early Warning System for Multi-messenger Astronomy

S. Al Kharusi, S. Y. BenZvi, J. S. Bobowski +68

The next core-collapse supernova in the Milky Way or its satellites will represent a once-in-a-generation opportunity to obtain detailed information about the explosion of a star a…

astro-ph.HE2020★ 23 cited

Fermi-type particle acceleration from magnetic reconnection at the termination shock of a relativistic striped wind

Yingchao Lu, Fan Guo, Patrick Kilian +3

An oblique-rotating pulsar generates a relativistic striped wind in a pulsar wind nebula (PWN). The termination shock of the PWN compresses the Poynting-flux-dominated flow and dri…

astro-ph.HE2020★ 69 cited

Fermi/GBM View of the 2019 and 2020 Burst Active Episodes of SGR J1935+2154

Lin Lin, Ersin Gogus, Oliver J. Roberts +5

We present temporal and time-integrated spectral analyses of 148 bursts from the latest activation of SGR J1935+2154, observed with Fermi/GBM from October 4th 2019 through May 20th…

astro-ph.HE2020★ 43 cited

X-ray Through Very-High-Energy Intrabinary Shock Emission from Black Widows and Redbacks

Christian J. T. van der Merwe, Zorawar Wadiasingh, Christo Venter +2

Black widow and redback systems are compact binaries in which a millisecond pulsar heats and may even ablate its low-mass companion by its intense wind of relativistic particles an…

astro-ph.HE2020★ 28 cited

A radiatively-quiet glitch and anti-glitch in the magnetar 1E 2259+586

G. Younes, P. S. Ray, M. G. Baring +5

We report on the timing and spectral properties of the soft X-ray emission from the magnetar 1E 2259+586 from January 2013, months after the detection of an anti-glitch, u…

astro-ph.HE2020★ 226 cited

Observation of inverse Compton emission from a long -ray burst

V. A. Acciari, S. Ansoldi, L. A. Antonelli +301

Long-duration gamma-ray bursts (GRBs) originate from ultra-relativistic jets launched from the collapsing cores of dying massive stars. They are characterised by an initial phase o…

astro-ph.HE2020★ 7 cited

Broadband X-ray Burst Spectroscopy of the FRB-Emitting Galactic Magnetar

G. Younes, M. G. Baring, C. Kouveliotou +22

Magnetars are young, magnetically-powered neutron stars possessing the strongest magnetic fields in the Universe. Fast Radio Bursts (FRBs) are extremely intense millisecond-long ra…

astro-ph.HE2020★ 17 cited

Simultaneous magnetic polar cap heating during a flaring episode from the magnetar 1RXS J170849.0-400910

George Younes, Matthew G. Baring, Chryssa Kouveliotou +3

During a pointed 2018 NuSTAR observation, we detected a flare with a 2.2 hour duration from the magnetar 1RXS J170849.0400910. The flare, which rose in seconds to a max…

astro-ph.HE2020★ 37 cited

Observations of a GX 301-2 Apastron Flare with the X-Calibur Hard X-Ray Polarimeter Supported by NICER, the Swift XRT and BAT, and Fermi GBM

Q. Abarr, M. Baring, B. Beheshtipour +28

The accretion-powered X-ray pulsar GX 301-2 was observed with the balloon-borne X-Calibur hard X-ray polarimeter during late December 2018, with contiguous observations by the NICE…