Glitches; the Link Between the Typical Radio Pulsars and the Anomalous X-ray Pulsars
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Glitches; the Link Between the Typical Radio Pulsars and the Anomalous X-ray Pulsars Jinrong Lin & Shuangnan Zhang, 2003, in preparation Physics department & Center for Astrophysics in Tsinghua University. Contents. Brief introduction to the timing feature of AXP

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Glitches; the Link Between the Typical Radio Pulsars and the Anomalous X-ray Pulsars

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Glitches the link between the typical radio pulsars and the anomalous x ray pulsars

Glitches; the Link Between the Typical Radio Pulsars and the Anomalous X-ray Pulsars

Jinrong Lin & Shuangnan Zhang, 2003,

in preparation

Physics department & Center for Astrophysics in Tsinghua University


Contents

Contents

  • Brief introduction to the timing feature of AXP

  • Introduction to pulsar glitches and the post-glitch recovery

  • Explanations for the age problem of PSR B1757-24

  • The fate of PSR B1757-24 (a future candidate of Anomalous X-ray Pulsar).

  • Conclusions and discussion


What is axp anomalous x ray pulsar mereghetti et al 2002

What is AXP (Anomalous X-ray Pulsar) Mereghetti et al., 2002


Glitches

glitches


Theoretical models for pulsar glitches star quake and vortex creep

Theoretical models for pulsar glitches; star quake and vortex creep


Post glitch recovery for vela and crab

Post-glitch recovery for Vela and Crab


Detected glitch parameters for crab

Detected glitch parameters for Crab


Average ratio of permanent changes to slowdown rate

Average ratio of permanent changes to slowdown rate

For Vela

0.00092

For Crab

0.00009


Propeller

propeller


Spin down rate in the accretion model

Spin-down rate in the accretion model


Fate of pulsars in accretion model p chatterjee et al 2000

Fate of pulsars in accretion model (P. Chatterjee et al. 2000)


Chandra detection is consistent with standard magnetospheric emission kaspi et al 2001

Chandra detection is consistent with standard magnetospheric emission (Kaspi et al. 2001)


Estimation of the age of psr b1757 24 or similar pulsars

Estimation of the age of PSR B1757-24 or similar pulsars


Glitch pulsars and their associated snrs

Glitch pulsars and their associated SNRs


Young pulsars and their missing snrs

“young” pulsars and their missing SNRs


Spin down rate in the accretion model1

Spin-down rate in the accretion model


Timing feature of axps

Timing feature of AXPs


Fate of psr b1757 24 when it is 290000 yrs old

Fate of PSR B1757-24when it is 290000 yrs old;


Glitches in axp

Glitches in AXP?


Conclusions and discussion

Conclusions and discussion

  • New model bases on observation; glitches

  • We should carefully estimate the pulsars’ ages

  • the fate of a pulsar depends on its post-glitch recovery type.

  • The population of AXPs given by our model is reasonable.


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