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Revival of the Magn...
Revival of the Magnetar PSR J1622-4950: Observations with MeerKAT, Parkes, XMM-Newton, Swift, Chandra, and NuSTAR
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Camilo, F. (author)
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- Scholz, P. (author)
- National Research Council Canada
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- Serylak, M. (author)
- Station de Radioastronomie de Nançay,University of the Western Cape
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Buchner, S. (author)
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- Merryfield, M. (author)
- University of Victoria,National Research Council Canada
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- Kaspi, V. M. (author)
- McGill University
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- Archibald, R. F. (author)
- McGill University,University of Toronto
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- Bailes, M. (author)
- Swinburne University of Technology
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- Jameson, A. (author)
- Swinburne University of Technology
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- Straten, W. Van (author)
- Auckland University of Technology,Swinburne University of Technology
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- Sarkissian, J. (author)
- Commonwealth Scientific and Industrial Research Organisation (CSIRO)
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- Reynolds, J.E. (author)
- Commonwealth Scientific and Industrial Research Organisation (CSIRO)
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- Johnston, S. (author)
- Commonwealth Scientific and Industrial Research Organisation (CSIRO)
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- Hobbs, G. (author)
- Commonwealth Scientific and Industrial Research Organisation (CSIRO)
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Abbott, T. D. (author)
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Adam, R. M. (author)
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Adams, G. B. (author)
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Alberts, T. (author)
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Andreas, R. (author)
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- Asad, K. M.B. (author)
- University of the Western Cape,Rhodes University
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Baker, D. E. (author)
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Baloyi, T. (author)
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Bauermeister, E. F. (author)
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Baxana, T. (author)
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Bennett, T. G.H. (author)
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- Bernardi, G. (author)
- Istituto di Radioastronomia,Rhodes University
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Booisen, D. (author)
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- Booth, Roy, 1938 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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Botha, D. H. (author)
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Boyana, L. (author)
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Brederode, L. R.S. (author)
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Burger, J. P. (author)
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Cheetham, T. (author)
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Conradie, J. (author)
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Conradie, J. P. (author)
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- Davidson, D. B. (author)
- Universiteit Stellenbosch,Stellenbosch University
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Bruin, G. De (author)
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Swardt, B. De (author)
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Villiers, C. De (author)
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- Villiers, D. I.L.De (author)
- Universiteit Stellenbosch,Stellenbosch University
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Villiers, M. S.De (author)
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Villiers, W. De (author)
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Waal, C. De (author)
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Dikgale, M. A. (author)
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Toit, G. Du (author)
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Toit, L. J.Du (author)
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Esterhuyse, S. W.P. (author)
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Fanaroff, B. (author)
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Fataar, S. (author)
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Foley, A. R. (author)
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- Foster, G. (author)
- University Of Oxford,University of California
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Fourie, D. (author)
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Gamatham, R. (author)
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Gatsi, T. (author)
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- Geschke, R. (author)
- University of Cape Town
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Goedhart, S. (author)
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- Grobler, T. L. (author)
- Universiteit Stellenbosch,Stellenbosch University
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Gumede, S. C. (author)
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Hlakola, M. J. (author)
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Hokwana, A. (author)
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Hoorn, D. H. (author)
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Horn, D. (author)
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Horrell, J. (author)
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- Hugo, B. (author)
- Rhodes University
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Isaacson, A. (author)
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Jacobs, O. (author)
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Van Rensburg, J. P.Jansen (author)
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- Jonas, J. L. (author)
- Rhodes University
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Jordaan, B. (author)
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Joubert, A. (author)
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Joubert, F. (author)
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- Józsa, G. I.G. (author)
- Rhodes University
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Julie, R. (author)
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Julius, C. C. (author)
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Kapp, F. (author)
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- Karastergiou, A. (author)
- Rhodes University,University of the Western Cape,University Of Oxford
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Karels, F. (author)
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Kariseb, M. (author)
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- Karuppusamy, R. (author)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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Kasper, V. (author)
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Knox-Davies, E. C. (author)
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Koch, D. (author)
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Kotzé, P. P.A. (author)
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Krebs, A. (author)
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(creator_code:org_t)
- 2018-04-05
- 2018
- English.
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In: Astrophysical Journal. - : American Astronomical Society. - 1538-4357 .- 0004-637X. ; 856:2
- Related links:
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https://research.cha... (primary) (free)
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https://doi.org/10.3...
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https://research.cha...
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https://doi.org/10.3...
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Abstract
Subject headings
Close
- New radio (MeerKAT and Parkes) and X-ray (XMM-Newton, Swift, Chandra, and NuSTAR) observations of PSR J1622-4950 indicate that the magnetar, in a quiescent state since at least early 2015, reactivated between 2017 March 19 and April 5. The radio flux density, while variable, is approximately 100 larger than during its dormant state. The X-ray flux one month after reactivation was at least 800 larger than during quiescence, and has been decaying exponentially on a 111 19 day timescale. This high-flux state, together with a radio-derived rotational ephemeris, enabled for the first time the detection of X-ray pulsations for this magnetar. At 5%, the 0.3-6 keV pulsed fraction is comparable to the smallest observed for magnetars. The overall pulsar geometry inferred from polarized radio emission appears to be broadly consistent with that determined 6-8 years earlier. However, rotating vector model fits suggest that we are now seeing radio emission from a different location in the magnetosphere than previously. This indicates a novel way in which radio emission from magnetars can differ from that of ordinary pulsars. The torque on the neutron star is varying rapidly and unsteadily, as is common for magnetars following outburst, having changed by a factor of 7 within six months of reactivation.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Meteorologi och atmosfärforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Meteorology and Atmospheric Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Keyword
- stars: magnetars
- pulsars: individual (PSR J16224950)
- pulsars: general
- stars: neutron
Publication and Content Type
- art (subject category)
- ref (subject category)
Find in a library
To the university's database
- By the author/editor
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Camilo, F.
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Scholz, P.
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Serylak, M.
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Buchner, S.
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Merryfield, M.
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Kaspi, V. M.
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show more...
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Archibald, R. F.
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Bailes, M.
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Jameson, A.
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Straten, W. Van
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Sarkissian, J.
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Reynolds, J.E.
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Johnston, S.
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Hobbs, G.
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Abbott, T. D.
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Adam, R. M.
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Adams, G. B.
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Alberts, T.
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Andreas, R.
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Asad, K. M.B.
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Baker, D. E.
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Baloyi, T.
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Bauermeister, E. ...
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Baxana, T.
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Bennett, T. G.H.
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Bernardi, G.
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Booisen, D.
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Booth, Roy, 1938
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Botha, D. H.
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Boyana, L.
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Brederode, L. R. ...
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Burger, J. P.
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Cheetham, T.
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Conradie, J.
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Conradie, J. P.
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Davidson, D. B.
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Bruin, G. De
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Swardt, B. De
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Villiers, C. De
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Villiers, D. I.L ...
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Villiers, M. S.D ...
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Villiers, W. De
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Waal, C. De
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Dikgale, M. A.
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Toit, G. Du
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Toit, L. J.Du
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Esterhuyse, S. W ...
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Fanaroff, B.
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Fataar, S.
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Foley, A. R.
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Foster, G.
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Fourie, D.
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Gamatham, R.
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Gatsi, T.
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Geschke, R.
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Goedhart, S.
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Grobler, T. L.
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Gumede, S. C.
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Hlakola, M. J.
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Hokwana, A.
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Hoorn, D. H.
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Horn, D.
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Horrell, J.
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Hugo, B.
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Isaacson, A.
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Jacobs, O.
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Van Rensburg, J. ...
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Jonas, J. L.
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Jordaan, B.
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Joubert, A.
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Joubert, F.
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Józsa, G. I.G.
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Julie, R.
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Julius, C. C.
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Kapp, F.
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Karastergiou, A.
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Karels, F.
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Kariseb, M.
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Karuppusamy, R.
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Kasper, V.
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Knox-Davies, E. ...
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Koch, D.
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Kotzé, P. P.A.
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Krebs, A.
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Meteorology and ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Fusion Plasma an ...
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Astrophysical Jo ...
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Chalmers University of Technology