Multi-Wavelength Observations of the Radio Magnetar PSR J1622–4950 and Discovery of its Possibly Associated Supernova Remnant

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Multi-Wavelength Observations of the Radio Magnetar PSR J1622–4950 and Discovery of its Possibly Associated Supernova Remnant

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Title: Multi-Wavelength Observations of the Radio Magnetar PSR J1622–4950 and Discovery of its Possibly Associated Supernova Remnant
Author: Anderson, Gemma E.; Gaensler, B. M.; Slane, Patrick Olson; Rea, Nanda; Kaplan, David L.; Posselt, Bettina; Levin, Lina; Johnston, Simon; Murray, Stephen S.; Brogan, Crystal L.; 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; 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; Stappers, Ben; Steeghs, Danny T. H.

Note: Order does not necessarily reflect citation order of authors.

Citation: Anderson, Gemma E., B. M. Gaensler, Patrick O. Slane, Nanda Rea, David L. Kaplan, Bettina Posselt, Lina Levin, et al. 2012. “MULTI-WAVELENGTH OBSERVATIONS OF THE RADIO MAGNETAR PSR J1622–4950 AND DISCOVERY OF ITS POSSIBLY ASSOCIATED SUPERNOVA REMNANT.” The Astrophysical Journal 751 (1) (May 4): 53. doi:10.1088/0004-637x/751/1/53.
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Abstract: 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 360 +/- 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. If G333.9+0.0 is a supernova remnant then the estimates of its size and age, combined with the close proximity and reasonable implied velocity of PSR J1622-4950, suggests that these two objects could be physically associated.
Published Version: doi:10.1088/0004-637x/751/1/53
Other Sources: http://arxiv.org/pdf/1203.2719v1.pdf
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:14068407
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