2008MNRAS.384.1034P

Query : 2008MNRAS.384.1034P

2008MNRAS.384.1034P - Mon. Not. R. Astron. Soc., 384, 1034-1038 (2008/March-1)

Pulsar slow glitches in a solid quark star model.

PENG C. and XU R.X.

Abstract (from CDS):

A series of five unusual slow glitches of the radio pulsar B1822-09 (PSR J1825-0935) was observed between 1995 and 2005. This is a phenomenon that is understood in a solid quark star model, and reasonable parameters for slow glitches are given in this paper. We propose that, because of increasing shear stress as the pulsar spins down, a slow glitch may occur, beginning with the collapse of a superficial layer of the quark star. This layer of material turns to viscous fluid at first, the viscosity of which helps to deplete the energy released from both the accumulated elastic energy and the gravitation potential. There is then a slow glitch. Numerical calculations show that the slow glitches that have been observed could be reproduced if the effective coefficient of viscosity is ∼102 cm2/s and the initial velocity of the superficial layer is of the order of 10–10 cm/s in the coordinate rotating frame of the star.

Abstract Copyright: © 2008 The Authors

Journal keyword(s): dense matter - stars: neutron - pulsars: general - pulsars: individual: PSR B1822-09

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 PSR B1822-09 Psr 18 25 30.62000 -09 35 22.0000           ~ 382 0

Query : 2008MNRAS.384.1034P

Basic data :
PSR B1822-09 -- Pulsar
Other object types: otypes_help 		Psr (PSR), Rad (NVSS)
ICRS coord. (ep=J2000) : 		18 25 30.62000 -09 35 22.0000 (Radio) [ 890 4000 90 ] B 2020MNRAS.494..228L
FK4 coord. (ep=B1950 eq=1950) : 		18 22 45.69407 -09 37 12.8636 [ 890 4000 90 ]
Gal coord. (ep=J2000) : 		021.44934167 +01.32394618 [ 890 4000 90 ]
Proper motions mas/yr : 		-30.00 110.00 [6.00 21.00 90] D 2019MNRAS.484.3691J
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Identifiers (4) :
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PSR B1822-09 NVSS J182530-093521 PSR J1825-0935 PSR B1822-09.6

References (382 between 1850 and 2026) (Total 382)
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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Collections of Measurements Description of Measurements

Distance : 1    PM : 1   

   

Observing logs
XMM : 2   

   

External archives :

Data at NED - NASA/IPAC Extragalactic Database : PSR B1822-09

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NVSS J182530-093521

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