2023ApJ...947L..16L

Query : 2023ApJ...947L..16L

2023ApJ...947L..16L - Astrophys. J., 947, L16 (2023/April-2)

The Game of Life on a Magnetar Crust: From Gamma-Ray Flares to FRBs.

LANDER S.K.

Abstract (from CDS):

This Letter presents a model to unify the diverse range of magnetar activity, through the building and release of elastic stress from the crust. A cellular automaton drives both local and global yielding of the crust, leading to braiding of coronal loops and energy release. The model behaves like a real magnetar in many ways: giant flares and small bursts both occur, as well as periods of quiescence whose typical duration is either ≲1 yr or ∼10-30 yr. The burst energy distribution broadly follows an earthquake-like power law over the energy range 1040-1045 erg. The local nature of coronal loops allows for the possibility of high-energy and fast radio bursts from the same magnetar. Within this paradigm, magnetar observations can be used to constrain the poorly understood mechanical properties of the neutron-star crust.

Abstract Copyright: © 2023. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Neutron stars - X-ray bursts - Radio bursts - Magnetars

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NAME Sgr 1935+2154 * 19 34 55.68 +21 53 48.2           ~ 820 1

Query : 2023ApJ...947L..16L

Basic data :
NAME Sgr 1935+2154 -- Star
Other object types: otypes_help 		* (), Psr (PSR)
ICRS coord. (ep=J2000) : 		19 34 55.68 +21 53 48.2 (X-ray) [ 2300 2300 0 ] E 2014ATel.6294....1C
FK4 coord. (ep=B1950 eq=1950) : 		19 32 46.46 +21 47 09.2 [ 2300 2300 0 ]
Gal coord. (ep=J2000) : 		057.24701 +00.81875 [ 2300 2300 0 ]
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Identifiers (3) :
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NAME Sgr 1935+2154 NAME Sgr J1935+2154 PSR J1935+2154

References (820 between 1850 and 2026) (Total 820)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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