Abstract
Magnetars are neutron stars in which a strong magnetic field is the main energy source. About two dozens of magnetars, plus several candidates, are currently known in our Galaxy and in the Magellanic Clouds. They appear as highly variable X-ray sources and, in some cases, also as radio and/or optical pulsars. Their spin periods (2–12 s) and spin-down rates (∼10−13–10−10 s s−1) indicate external dipole fields of ∼1013−15 G, and there is evidence that even stronger magnetic fields are present inside the star and in non-dipolar magnetospheric components. Here we review the observed properties of the persistent emission from magnetars, discuss the main models proposed to explain the origin of their magnetic field and present recent developments in the study of their evolution and connection with other classes of neutron stars.
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Notes
Ironically, it is now known that the nebulae associated to two of the three first discovered SGRs are not supernova remnants.
An updated list is maintained at http://www.physics.mcgill.ca/~pulsar/magnetar/main.html (Olausen and Kaspi 2014).
The association with the supernova remnant N49 in the Large Magellanic Cloud yielded the distance and energetics of this event.
In the lack of a better nomenclature, we use this adjective somehow improperly also for transient and variable sources, just to distinguish this emission from that of the short bursts and of the intermediate/giant flares.
The MeV-GeV source in the region of 1E 2259+586 is well explained as emission from the supernova remnant CTB 109 interacting with molecular clouds (Castro et al. 2012).
Several features have been observed during bursts, e.g.: emission lines at ∼13–14 keV in 1E 1048.1−5937 (Gavriil et al. 2002; An et al. 2014), in 4U 0142+61 (Gavriil et al. 2011), and in XTE J1810−197 (Woods et al. 2005); an absorption line at 5 keV (and possibly its harmonics) in SGR 1806−20 (Ibrahim et al. 2003); an emission line at 6.4 keV in SGR 1900+14 (Strohmayer and Ibrahim 2000).
The estimate from 26Al is subject to systematic uncertainties (included in the quoted error), as the isotopic yield is model dependent, and there is an unknown yield contribution from local spallation processes and specific star-forming regions. This rate is broadly consistent with extragalactic estimates (Dahlen et al. 2012; Taylor et al. 2014) which are undifferentiated by galactic type, e.g. comparative studies in the Local Volume which are limited statistically by the small number of events (Botticella et al. 2012).
X-ray Dim Isolated Neutron Stars, a class of relatively old, purely thermally emitting neutron stars discovered by the ROSAT satellite (see, e.g., Turolla 2009, for a review of their properties).
References
A.A. Abdo, M. Ackermann, M. Ajello et al., Astrophys. J. Lett. 725, L73 (2010)
D.N. Aguilera, J.A. Pons, J.A. Miralles, Astron. Astrophys. 486, 255 (2008)
T. Akgün, A. Reisenegger, A. Mastrano, P. Marchant, Mon. Not. R. Astron. Soc. 433, 2445 (2013)
A. Albano, R. Turolla, G.L. Israel et al., Astrophys. J. 722, 788 (2010)
J. Aleksić, L.A. Antonelli, P. Antoranz et al., Astron. Astrophys. 549, A23 (2013)
M.A. Alpar, Astrophys. J. 554, 1245 (2001)
H. An, R. Hascoët, V.M. Kaspi et al., Astrophys. J. 779, 163 (2013a)
H. An, V.M. Kaspi, R. Archibald, A. Cumming, Astrophys. J. 763, 82 (2013b)
H. An, V.M. Kaspi, A.M. Beloborodov et al., Astrophys. J. 790, 60 (2014)
G.E. Anderson, B.M. Gaensler, P.O. Slane et al., Astrophys. J. 751, 53 (2012)
R.L. Aptekar, T.L. Cline, D.D. Frederiks et al., Astrophys. J. Lett. 698, L82 (2009)
R.F. Archibald, V.M. Kaspi, C.-Y. Ng et al., Nature 497, 591 (2013)
M.G. Baring, A.K. Harding, Astrophys. Space Sci. 308, 109 (2007)
G. Baym, C. Pethick, D. Pines, M. Ruderman, Nature 224, 872 (1969)
A.M. Beloborodov, Astrophys. J. 703, 1044 (2009)
A.M. Beloborodov, in High-Energy Emission from Pulsars and Their Systems, ed. by D.F. Torres, N. Rea (2011), p. 299
A.M. Beloborodov, Astrophys. J. 777, 114 (2013a)
A.M. Beloborodov, Astrophys. J. 762, 13 (2013b)
A.M. Beloborodov, C. Thompson, Astrophys. J. 657, 967 (2007)
F. Bernardini, G.L. Israel, L. Stella et al., Astron. Astrophys. 529, A19 (2011)
A. Bonanno, V. Urpin, G. Belvedere, Astron. Astrophys. 440, 199 (2005)
M.T. Botticella, S.J. Smartt, R.C. Kennicutt et al., Astron. Astrophys. 537, A132 (2012)
G.C. Bower, A. Deller, P. Demorest et al., Astrophys. J. 798, 120 (2015)
J. Braithwaite, Astron. Astrophys. 449, 451 (2006)
J. Braithwaite, Å. Nordlund, Astron. Astrophys. 450, 1077 (2006)
A. Camero, A. Papitto, N. Rea et al., Mon. Not. R. Astron. Soc. 438, 3291 (2014)
F. Camilo, S.M. Ransom, J.P. Halpern et al., Nature 442, 892 (2006)
F. Camilo, I. Cognard, S.M. Ransom et al., Astrophys. J. 663, 497 (2007a)
F. Camilo, S.M. Ransom, J.P. Halpern, J. Reynolds, Astrophys. J. Lett. 666, L93 (2007b)
F. Camilo, J. Reynolds, S. Johnston et al., Astrophys. J. Lett. 659, L37 (2007c)
F. Camilo, J. Reynolds, S. Johnston, J.P. Halpern, S.M. Ransom, Astrophys. J. 679, 681 (2008)
D. Castro, P. Slane, D.C. Ellison, D.J. Patnaude, Astrophys. J. 756, 88 (2012)
Q. Cheng, Y.-W. Yu, Astrophys. J. Lett. 786, L13 (2014)
K.S. Cheng, L. Zhang, Astrophys. J. 562, 918 (2001)
R. Ciolfi, L. Rezzolla, Mon. Not. R. Astron. Soc. 435, L43 (2013)
J.S. Clark, B.W. Ritchie, F. Najarro, N. Langer, I. Negueruela, Astron. Astrophys. 565, A90 (2014)
M. Colpi, U. Geppert, D. Page, Astrophys. J. Lett. 529, L29 (2000)
J.N. Cook, S.L. Shapiro, B.C. Stephens, Astrophys. J. 599, 1272 (2003)
T. Dahlen, L.-G. Strolger, A.G. Riess et al., Astrophys. J. 757, 70 (2012)
S. Dall’Osso, G.L. Israel, L. Stella, A. Possenti, E. Perozzi, Astrophys. J. 599, 485 (2003)
S. Dall’Osso, S.N. Shore, L. Stella, Mon. Not. R. Astron. Soc. 398, 1869 (2009)
S. Dall’Osso, J. Granot, T. Piran, Mon. Not. R. Astron. Soc. 422, 2878 (2012)
A.T. Deller, F. Camilo, J.E. Reynolds, J.P. Halpern, Astrophys. J. Lett. 748, L1 (2012)
P.R. den Hartog, W. Hermsen, L. Kuiper et al., Astron. Astrophys. 451, 587 (2006)
P.R. den Hartog, L. Kuiper, W. Hermsen, Astron. Astrophys. 489, 263 (2008a)
P.R. den Hartog, L. Kuiper, W. Hermsen et al., Astron. Astrophys. 489, 245 (2008b)
V.S. Dhillon, T.R. Marsh, F. Hulleman et al., Mon. Not. R. Astron. Soc. 363, 609 (2005)
V.S. Dhillon, T.R. Marsh, S.P. Littlefair et al., Mon. Not. R. Astron. Soc. 394, L112 (2009)
V.S. Dhillon, T.R. Marsh, S.P. Littlefair et al., Mon. Not. R. Astron. Soc. 416, L16 (2011)
T. Di Salvo, L. Burderi, N.R. Robba, M. Guainazzi, Astrophys. J. 509, 897 (1998)
R. Dib, V.M. Kaspi, Astrophys. J. 784, 37 (2014)
R. Dib, V.M. Kaspi, F.P. Gavriil, Astrophys. J. 673, 1044 (2008)
R. Dib, V.M. Kaspi, F.P. Gavriil, Astrophys. J. 702, 614 (2009)
R. Diehl, H. Halloin, K. Kretschmer et al., Nature 439, 45 (2006)
R.C. Duncan, C. Thompson, Astrophys. J. Lett. 392, L9 (1992)
M. Durant, M.H. van Kerkwijk, Astrophys. J. 627, 376 (2005)
R.P. Eatough, H. Falcke, R. Karuppusamy et al., Nature 501, 391 (2013)
D. Eichler, M. Gedalin, Y. Lyubarsky, Astrophys. J. Lett. 578, L121 (2002)
S.S. Eikenberry, K. Matthews, J.L. LaVine et al., Astrophys. J. 616, 506 (2004)
T. Enoto, K. Nakazawa, K. Makishima et al., Publ. Astron. Soc. Jpn. 62, 475 (2010a)
T. Enoto, K. Nakazawa, K. Makishima et al., Astrophys. J. Lett. 722, L162 (2010b)
T. Enoto, N. Rea, Y.E. Nakagawa et al., Astrophys. J. 715, 665 (2010c)
P. Esposito, G.L. Israel, S. Zane et al., Mon. Not. R. Astron. Soc. 390, L34 (2008)
P. Esposito, A. Tiengo, S. Mereghetti et al., Astrophys. J. Lett. 690, L105 (2009)
C.A. Faucher-Giguère, V.M. Kaspi, Astrophys. J. 643, 332 (2006)
R. Fernández, C. Thompson, Astrophys. J. 660, 615 (2007)
L. Ferrario, D. Wickramasinghe, Mon. Not. R. Astron. Soc. 367, 1323 (2006)
L. Ferrario et al., Space Sci. Rev. (2015, this issue). doi:10.1007/s11214-015-0138-y
F.P. Gavriil, V.M. Kaspi, Astrophys. J. Lett. 609, L67 (2004)
F.P. Gavriil, V.M. Kaspi, P.M. Woods, Nature 419, 142 (2002)
F.P. Gavriil, R. Dib, V.M. Kaspi, Astrophys. J. 736, 138 (2011)
U. Geppert, D. Page, T. Zannias, Astron. Astrophys. 345, 847 (1999)
R. Gill, J. Heyl, Mon. Not. R. Astron. Soc. 381, 52 (2007)
K. Glampedakis, D.I. Jones, L. Samuelsson, Mon. Not. R. Astron. Soc. 413, 2021 (2011)
D. Götz, S. Mereghetti, A. Tiengo, P. Esposito, Astron. Astrophys. 449, L31 (2006)
K.N. Gourgouliatos, A. Cumming, Mon. Not. R. Astron. Soc. 438, 1618 (2014)
M.E. Gusakov, E.M. Kantor, Phys. Rev. D 88, 101302 (2013)
T. Güver, F. Özel, E. Göǧüş, C. Kouveliotou, Astrophys. J. Lett. 667, L73 (2007)
T. Güver, E. Göǧüş, F. Özel, Mon. Not. R. Astron. Soc. 418, 2773 (2011)
J.P. Halpern, E.V. Gotthelf, Astrophys. J. 618, 874 (2005)
R. Hascoët, A.M. Beloborodov, P.R. den Hartog, Astrophys. J. Lett. 786, L1 (2014)
D.J. Helfand, S. Chatterjee, W.F. Brisken et al., Astrophys. J. 662, 1198 (2007)
J.S. Heyl, L. Hernquist, Astrophys. J. 618, 463 (2005)
G. Hobbs, D.R. Lorimer, A.G. Lyne, M. Kramer, Mon. Not. R. Astron. Soc. 360, 974 (2005)
R. Hollerbach, G. Rüdiger, Mon. Not. R. Astron. Soc. 337, 216 (2002)
Y.F. Huang, J.J. Geng, Astrophys. J. Lett. 782, L20 (2014)
K. Hurley, P. Li, C. Kouveliotou et al., Astrophys. J. Lett. 510, L111 (1999)
A.I. Ibrahim, J.H. Swank, W. Parke, Astrophys. J. Lett. 584, L17 (2003)
G. Israel, S. Covino, R. Mignani et al., Astron. Astrophys. 438, L1 (2005)
K. Iwasawa, K. Koyama, J.P. Halpern, Publ. Astron. Soc. Jpn. 44, 9 (1992)
M.S. Jackson, J.P. Halpern, Astrophys. J. 633, 1114 (2005)
A.M. Juett, H.L. Marshall, D. Chakrabarty, N.S. Schulz, Astrophys. J. Lett. 568, L31 (2002)
V.M. Kaspi, K. Boydstun, Astrophys. J. Lett. 710, L115 (2010)
V.M. Kaspi, J.R. Lackey, D. Chakrabarty, Astrophys. J. Lett. 537, L31 (2000)
V.M. Kaspi, F.P. Gavriil, P.M. Woods et al., Astrophys. J. Lett. 588, L93 (2003)
V.M. Kaspi, R.F. Archibald, V. Bhalerao et al., Astrophys. J. 786, 84 (2014)
E.F. Keane, M. Kramer, Mon. Not. R. Astron. Soc. 391, 2009 (2008)
B. Kern, C. Martin, Nature 417, 527 (2002)
P.D. Kiel, J.R. Hurley, M. Bailes, J.R. Murray, Mon. Not. R. Astron. Soc. 388, 393 (2008)
C. Kouveliotou, S. Dieters, T. Strohmayer et al., Nature 393, 235 (1998)
C. Kouveliotou, T. Strohmayer, K. Hurley et al., Astrophys. J. Lett. 510, L115 (1999)
L. Kuiper, W. Hermsen, M. Mendez, Astrophys. J. 613, 1173 (2004)
L. Kuiper, W. Hermsen, P.R. den Hartog, W. Collmar, Astrophys. J. 645, 556 (2006)
L. Kuiper, W. Hermsen, P.R. den Hartog, J.O. Urama, Astrophys. J. 748, 133 (2012)
S.R. Kulkarni, D.L. Kaplan, H.L. Marshall et al., Astrophys. J. 585, 948 (2003)
D. Lai, Space Sci. Rev. 1 (2015). doi:10.1007/s11214-015-0137-z
S.K. Lander, D.I. Jones, Mon. Not. R. Astron. Soc. 424, 482 (2012)
J.D. Landstreet, S. Bagnulo, V. Andretta et al., Astron. Astrophys. 470, 685 (2007)
L. Levin, M. Bailes, S. Bates et al., Astrophys. J. Lett. 721, L33 (2010)
M. Lyutikov, Mon. Not. R. Astron. Soc. 367, 1594 (2006)
M. Lyutikov, Magnetospheric “anti-glitches” in magnetars. ArXiv e-prints (2013). arXiv:1306.2264
M. Lyutikov, F.P. Gavriil, Mon. Not. R. Astron. Soc. 368, 690 (2006)
D. Marsden, N.E. White, Astrophys. J. Lett. 551, L155 (2001)
J. Martin, N. Rea, D.F. Torres, A. Papitto, Mon. Not. R. Astron. Soc. 444, 2910 (2014)
A. Mastrano, A. Melatos, Mon. Not. R. Astron. Soc. 421, 760 (2012)
A. Mastrano, A. Melatos, A. Reisenegger, T. Akgün, Mon. Not. R. Astron. Soc. 417, 2288 (2011)
E.P. Mazets, S.V. Golenetskij, Y.A. Guryan, Sov. Astron. Lett. 5, 343 (1979a)
E.P. Mazets, S.V. Golentskii, V.N. Ilinskii, R.L. Aptekar, I.A. Guryan, Nature 282, 587 (1979b)
A. Melatos, Astrophys. J. 761, 32 (2012)
S. Mereghetti, Astron. Astrophys. Rev. 15, 225 (2008)
S. Mereghetti, Adv. Space Res. 47, 1317 (2011a)
S. Mereghetti, in High-Energy Emission from Pulsars and Their Systems, ed. by D.F. Torres, N. Rea (2011b), p. 345
S. Mereghetti, L. Stella, Astrophys. J. Lett. 442, L17 (1995)
S. Mereghetti, A. Tiengo, L. Stella et al., Astrophys. J. 608, 427 (2004)
S. Mereghetti, D. Götz, I.F. Mirabel, K. Hurley, Astron. Astrophys. 433, L9 (2005a)
S. Mereghetti, A. Tiengo, P. Esposito et al., Astrophys. J. 628, 938 (2005b)
S. Mereghetti, P. Esposito, A. Tiengo et al., Astrophys. J. 653, 1423 (2006)
S. Mereghetti, D. Götz, G. Weidenspointner et al., Astrophys. J. Lett. 696, L74 (2009)
A.B. Migdal, Nucl. Phys. 13, 655 (1959)
S.G. Moiseenko, G.S. Bisnovatyi-Kogan, N.V. Ardeljan, Mon. Not. R. Astron. Soc. 370, 501 (2006)
K. Mori, E.V. Gotthelf, S. Zhang et al., Astrophys. J. Lett. 770, L23 (2013)
M.P. Muno, J.S. Clark, P.A. Crowther et al., Astrophys. J. Lett. 636, L41 (2006)
M.P. Muno, B.M. Gaensler, J.S. Clark et al., Mon. Not. R. Astron. Soc. 378, L44 (2007)
T. Murakami, Y. Tanaka, S.R. Kulkarni et al., Nature 368, 127 (1994)
L. Nobili, R. Turolla, S. Zane, Mon. Not. R. Astron. Soc. 386, 1527 (2008a)
L. Nobili, R. Turolla, S. Zane, Mon. Not. R. Astron. Soc. 389, 989 (2008b)
J.P. Norris, P. Hertz, K.S. Wood, C. Kouveliotou, Astrophys. J. 366, 240 (1991)
S.A. Olausen, V.M. Kaspi, Astrophys. J. Suppl. Ser. 212, 6 (2014)
S.A. Olausen, W.W. Zhu, J.K. Vogel et al., Astrophys. J. 764, 1 (2013)
T. Oosterbroek, A.N. Parmar, S. Mereghetti, G.L. Israel, Astron. Astrophys. 334, 925 (1998)
B. Paczynski, Acta Astron. 42, 145 (1992)
D. Page, U. Geppert, T. Zannias, Astron. Astrophys. 360, 1052 (2000)
D.M. Palmer, Mem. Soc. Astron. Ital. 73, 578 (2002)
A.N. Parmar, T. Oosterbroek, F. Favata et al., Astron. Astrophys. 330, 175 (1998)
S.K. Patel, C. Kouveliotou, P.M. Woods et al., Astrophys. J. Lett. 563, L45 (2001)
R. Perna, J.A. Pons, Astrophys. J. Lett. 727, L51 (2011)
J.A. Pons, U. Geppert, Astron. Astrophys. 470, 303 (2007)
J.A. Pons, R. Perna, Astrophys. J. 741, 123 (2011)
J.A. Pons, J.A. Miralles, U. Geppert, Astron. Astrophys. 496, 207 (2009)
N. Rea, P. Esposito, in High-Energy Emission from Pulsars and Their Systems, ed. by D.F. Torres, N. Rea (2011), p. 247
N. Rea, G.L. Israel, L. Stella et al., Astrophys. J. Lett. 586, L65 (2003)
N. Rea, V. Testa, G.L. Israel et al., Astron. Astrophys. 425, L5 (2004)
N. Rea, T. Oosterbroek, S. Zane et al., Mon. Not. R. Astron. Soc. 361, 710 (2005)
N. Rea, R. Turolla, S. Zane et al., Astrophys. J. Lett. 661, L65 (2007)
N. Rea, S. Zane, R. Turolla, M. Lyutikov, D. Götz, Astrophys. J. 686, 1245 (2008)
N. Rea, G.L. Israel, R. Turolla et al., Mon. Not. R. Astron. Soc. 396, 2419 (2009)
N. Rea, P. Esposito, R. Turolla et al., Science 330, 944 (2010)
N. Rea, G.L. Israel, P. Esposito et al., Astrophys. J. 754, 27 (2012)
N. Rea, P. Esposito, J.A. Pons et al., Astrophys. J. Lett. 775, L34 (2013a)
N. Rea, G.L. Israel, J.A. Pons et al., Astrophys. J. 770, 65 (2013b)
N. Rea, D. Viganò, G.L. Israel, J.A. Pons, D.F. Torres, Astrophys. J. Lett. 781, L17 (2014)
A. Reisenegger, P. Goldreich, Astrophys. J. 395, 240 (1992)
M. Revnivtsev, S. Mereghetti, Space Sci. Rev. (2014). doi:10.1007/s11214-014-0123-x
R.E. Rothschild, S.R. Kulkarni, R.E. Lingenfelter, Nature 368, 432 (1994)
M. Ruderman, Annu. Rev. Astron. Astrophys. 10, 427 (1972)
S. Şaşmaz Muş, E. Göǧüş, Astrophys. J. 723, 100 (2010)
P. Scholz, V.M. Kaspi, A. Cumming, Astrophys. J. 786, 62 (2014)
R.M. Shannon, S. Johnston, Mon. Not. R. Astron. Soc. 435, L29 (2013)
H.C. Spruit, in IAU Symposium, ed. by K.G. Strassmeier, A.G. Kosovichev, J.E. Beckman. IAU Symposium, vol. 259 (2009), pp. 61–74
H. Spruit, E.S. Phinney, Nature 393, 139 (1998)
T.E. Strohmayer, A.I. Ibrahim, Astrophys. J. Lett. 537, L111 (2000)
M. Sugizaki, F. Nagase, K. Torii et al., Publ. Astron. Soc. Jpn. 49, L25 (1997)
C.R. Tam, V.M. Kaspi, M.H. van Kerkwijk, M. Durant, Astrophys. J. Lett. 617, L53 (2004)
M. Taylor, D. Cinabro, B. Dilday et al., Astrophys. J. 792, 135 (2014)
S.P. Tendulkar, P.B. Cameron, S.R. Kulkarni, Astrophys. J. 761, 76 (2012)
S.P. Tendulkar, P.B. Cameron, S.R. Kulkarni, Astrophys. J. 772, 31 (2013)
V. Testa, N. Rea, R.P. Mignani et al., Astron. Astrophys. 482, 607 (2008)
C. Thompson, A.M. Beloborodov, Astrophys. J. 634, 565 (2005)
C. Thompson, R.C. Duncan, Astrophys. J. 408, 194 (1993)
C. Thompson, R.C. Duncan, Mon. Not. R. Astron. Soc. 275, 255 (1995)
C. Thompson, R.C. Duncan, Astrophys. J. 473, 322 (1996)
C. Thompson, M. Lyutikov, S.R. Kulkarni, Astrophys. J. 574, 332 (2002)
A. Tiengo, S. Mereghetti, R. Turolla et al., Astron. Astrophys. 437, 997 (2005)
A. Tiengo, P. Esposito, S. Mereghetti, Astrophys. J. Lett. 680, L133 (2008)
A. Tiengo, P. Esposito, S. Mereghetti et al., Nature 500, 312 (2013)
H. Tong, Astrophys. J. 784, 86 (2014)
J.E. Trümper, A. Zezas, Ü. Ertan, N.D. Kylafis, Astron. Astrophys. 518, A46 (2010)
R. Turolla, in Astrophysics and Space Science Library, ed. by W. Becker. Astrophysics and Space Science Library, vol. 357 (2009), p. 141
R. Turolla, P. Esposito, Int. J. Mod. Phys. D 22, 30024 (2013)
A.J. van der Horst, V. Connaughton, C. Kouveliotou et al., Astrophys. J. Lett. 711, L1 (2010)
D. Viganò, J.A. Pons, J.A. Miralles, Comput. Phys. Commun. 183, 2042 (2012)
D. Viganò, N. Rea, J.A. Pons et al., Mon. Not. R. Astron. Soc. 434, 123 (2013)
J. Vink, L. Kuiper, Mon. Not. R. Astron. Soc. 370, L14 (2006)
J.K. Vogel, R. Hascoët, V.M. Kaspi et al., Astrophys. J. 789, 75 (2014)
F.J. Vrba, A.A. Henden, C.B. Luginbuhl et al., Astrophys. J. Lett. 533, L17 (2000)
G.A. Wade, J. Grunhut, E. Alecian et al., in IAU Symposium. IAU Symposium, vol. 302 (2014), pp. 265–269
N.E. White, K.O. Mason, P. Giommi et al., Mon. Not. R. Astron. Soc. 226, 645 (1987)
N.E. White, L. Angelini, K. Ebisawa, Y. Tanaka, P. Ghosh, Astrophys. J. Lett. 463, L83 (1996)
D.T. Wickramasinghe, C.A. Tout, L. Ferrario, Mon. Not. R. Astron. Soc. 437, 675 (2014)
L. Woltjer, Astrophys. J. 140, 1309 (1964)
P.M. Woods, in 40 Years of Pulsars: Millisecond Pulsars, Magnetars and More, ed. by C. Bassa, Z. Wang, A. Cumming, V.M. Kaspi. American Institute of Physics Conference Series, vol. 983 (2008), pp. 227–233
P.M. Woods, C. Thompson, Soft gamma repeaters and anomalous X-ray pulsars: Magnetar candidates, in Compact Stellar X-Ray Sources (2006), pp. 547–586
P.M. Woods, C. Kouveliotou, J. van Paradijs et al., Astrophys. J. Lett. 524, L55 (1999a)
P.M. Woods, C. Kouveliotou, J. van Paradijs et al., Astrophys. J. Lett. 519, L139 (1999b)
P.M. Woods, V.M. Kaspi, C. Thompson et al., Astrophys. J. 605, 378 (2004)
P.M. Woods, C. Kouveliotou, F.P. Gavriil et al., Astrophys. J. 629, 985 (2005)
S. Zane, N. Rea, R. Turolla, L. Nobili, Mon. Not. R. Astron. Soc. 398, 1403 (2009)
S. Zane, L. Nobili, R. Turolla, in High-Energy Emission from Pulsars and Their Systems, ed. by D.F. Torres, N. Rea (2011a), p. 329
S. Zane, R. Turolla, L. Nobili, N. Rea, Adv. Space Res. 47, 1298 (2011b)
L. Zhang, K.S. Cheng, Astrophys. J. 579, 716 (2002)
Acknowledgements
We thank all the staff of the International Space Science Institute and the organizers of the stimulating Workshop “The Strongest Magnetic Fields in the Universe”. The work of SM has been partially supported through the agreement ASI-INAF I/037/12/0. JAP acknowledges support of the Spanish national grant AYA 2013-42184-P and of the New Compstar COST action MP1304. AM acknowledges support of an Australian Research Council Discovery Project grant and is grateful to Nicole Darman for assistance with typesetting.
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Mereghetti, S., Pons, J.A. & Melatos, A. Magnetars: Properties, Origin and Evolution. Space Sci Rev 191, 315–338 (2015). https://doi.org/10.1007/s11214-015-0146-y
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DOI: https://doi.org/10.1007/s11214-015-0146-y