Details

Autor(en) / Beteiligte

• ANDERSON, Gemma E
• GAENSLER, B. M
• BAILES, Matthew
• BATES, Samuel
• BENJAMIN, Robert A
• RAMESH BHAT, N. D
• BURGAY, Marta
• BURKE-SPOLAOR, Sarah
• CHAKRABARTY, Deepto
• D'AMICO, Nichi
• DRAKE, Jeremy J
• ESPOSITO, Paolo
• SLANE, Patrick O
• GRINDLAY, Jonathan E
• HONG, Jaesub
• ISRAEL, G. L
• KEITH, Michael J
• KRAMER, Michael
• LAZIO, T. Joseph W
• LEE, Julia C
• MAUERHAN, Jon C
• MILIA, Sabrina
• POSSENTI, Andrea
• REA, Nanda
• STAPPERS, Ben
• STEEGHS, Danny T. H
• KAPLAN, David L
• POSSELT, Bettina
• LEVIN, Lina
• JOHNSTON, Simon
• MURRAY, Stephen S
• BROGAN, Crystal L

Titel

MULTI-WAVELENGTH OBSERVATIONS OF THE RADIO MAGNETAR PSR J1622―4950 AND DISCOVERY OF ITS POSSIBLY ASSOCIATED SUPERNOVA REMNANT

Ist Teil von

• The Astrophysical journal, 2012-05, Vol.751 (1), p.1-12

Ort / Verlag

Bristol: IOP

Erscheinungsjahr

2012

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• We present multi-wavelength observations of the radio magnetar PSR J1622-4950 and its environment. Observations of PSR J1622-4950 with Chandra (in 2007 and 2009) and XMM (in 2011) show that the X-ray flux of PSR J1622-4950 has decreased by a factor of ~50 over 3.7 years, decaying exponentially with a characteristic time of [tau] = 360 + or - 11 days. This behavior identifies PSR J1622-4950 as a possible addition to the small class of transient magnetars. The X-ray decay likely indicates that PSR J1622-4950 is recovering from an X-ray outburst that occurred earlier in 2007, before the 2007 Chandra observations. Observations with the Australia Telescope Compact Array show strong radio variability, including a possible radio flaring event at least one and a half years after the 2007 X-ray outburst that may be a direct result of this X-ray event. Radio observations with the Molonglo Observatory Synthesis Telescope reveal that PSR J1622-4950 is 8' southeast of a diffuse radio arc, G333.9+0.0, which appears non-thermal in nature and which could possibly be a previously undiscovered supernova remnant (SNR). If G333.9+0.0 is an SNR then the estimates of its size and age, combined with the close proximity and reasonable implied velocity of PSR J1622-4950, suggest that these two objects could be physically associated.