Related papers: SMWDs as SGRs/AXPs and the lepton number violation

Photon Attenuation and Pair Creation in Highly-Magnetized Pulsars

Developments over the last couple of years have supported the interpretation that anomalous X-ray pulsars (AXPs) and soft gamma repeaters (SGRs) possess unusually high magnetic fields, and furthermore may represent a class or classes of…

Astrophysics · Physics 2007-05-23 Matthew G. Baring , Alice K. Harding

A low-magnetic-field Soft Gamma Repeater

Soft gamma repeaters and anomalous x-ray pulsars form a rapidly increasing group of x-ray sources exhibiting sporadic emission of short bursts. They are believed to be magnetars, i.e. neutron stars powered by extreme magnetic fields,…

High Energy Astrophysical Phenomena · Physics 2015-05-20 N. Rea , P. Esposito , R. Turolla , G. L. Israel , S. Zane , L. Stella , S. Mereghetti , A. Tiengo , D. Gotz , E. Gogus , C. Kouveliotou

To understand the X-ray spectrum of anomalous X-ray pulsars and soft gamma-ray repeaters

Hard X-rays above 10 keV are detected from several anomalous X-ray pulsars (AXPs) and soft gamma-ray repeaters (SGRs), and different models have been proposed to explain the physical origin within the frame of either magnetar model or…

High Energy Astrophysical Phenomena · Physics 2015-06-19 Yan-Jun Guo , Shi Dai , Zhao-Sheng Li , Yuan Liu , Hao Tong , Ren-Xin Xu

Soft Gamma Repeaters and Anomalous X-ray Pulsars: Together Forever

I review of the observational properties of Soft Gamma Repeaters (SGRs) and Anomalous X-ray Pulsars (AXPs), two unusual manifestations of neutron stars. I summarize the reasoning for SGRs being "magnetars," neutron stars powered by the…

Astrophysics · Physics 2007-05-23 V. M. Kaspi

Pulsars and magnetars

The high-energy sources known as anomalous X-ray pulsars (AXPs) and soft gamma-ray repeaters (SGRs) are well explained as magnetars: isolated neutron stars powered by their own magnetic energy. After explaining why it is generally believed…

High Energy Astrophysical Phenomena · Physics 2015-06-15 Sandro Mereghetti

Search for Gravitational Wave Bursts from Six Magnetars

Soft gamma repeaters (SGRs) and anomalous X-ray pulsars (AXPs) are thought to be magnetars: neutron stars powered by extreme magnetic fields. These rare objects are characterized by repeated and sometimes spectacular gamma-ray bursts. The…

High Energy Astrophysical Phenomena · Physics 2019-08-15 J. Abadie , B. P. Abbott , R. Abbott , M. Abernathy , T. Accadia , F. Acerneseac , C. Adams , R. Adhikari , C. Affeldt , B. Allen , G. S. Allen , E. Amador Ceron , D. Amariutei , R. S. Amin , S. B. Anderson , W. G. Anderson , F. Antonuccia , K. Arai , M. A. Arain , M. C. Araya , S. M. Aston , P. Astonea , D. Atkinson , P. Aufmuth , C. Aulbert , B. E. Aylott , S. Babak , P. Baker , G. Ballardin , S. Ballmer , D. Barker , S. Barnum , F. Baroneac , B. Barr , P. Barriga , L. Barsotti , M. Barsuglia , M. A. Barton , I. Bartos , R. Bassiri , M. Bastarrika , A. Bastiab , J. Bauchrowitz , Th. S. Bauera , B. Behnke , M. G. Bekera , A. S. Bell , A. Belletoile , I. Belopolski , M. Benacquista , A. Bertolini , J. Betzwieser , N. Beveridge , P. T. Beyersdorf , I. A. Bilenko , G. Billingsley , J. Birch , S. Birindellia , R. Biswas , M. Bitossia , M. A. Bizouarda , E. Black , J. K. Blackburn , L. Blackburn , D. Blair , B. Bland , M. Bloma , O. Bock , T. P. Bodiya , C. Bogan , R. Bondarescu , F. Bondub , L. Bonelliab , R. Bonnand , R. Bork , M. Born , V. Boschia , S. Bose , L. Bosia , B. Bouhou , M. Boyle , S. Braccinia , C. Bradaschiaa , P. R. Brady , V. B. Braginsky , J. E. Brau , J. Breyer , D. O. Bridges , A. Brilleta , M. Brinkmann , V. Brissona , M. Britzger , A. F. Brooks , D. A. Brown , A. Brummit , R. Budzyńskib , T. Bulikbc , H. J. Bultenab , A. Buonanno , J. Burguet--Castell , O. Burmeister , D. Buskulic , C. Buy , R. L. Byer , L. Cadonati , G. Cagnolia , J. Cain , E. Calloniab , J. B. Camp , E. Campagnaab , P. Campsie , J. Cannizzo , K. Cannon , B. Canuel , J. Cao , C. Capano , F. Carbognani , S. Caride , S. Caudill , M. Cavaglià , F. Cavaliera , R. Cavalieri , G. Cellaa , C. Cepeda , E. Cesarinib , O. Chaibia , T. Chalermsongsak , E. Chalkley , P. Charlton , E. Chassande-Mottin , S. Chelkowski , Y. Chen , A. Chincarini , N. Christensen , S. S. Y. Chua , C. T. Y. Chung , S. Chung , F. Clara , D. Clark , J. Clark , J. H. Clayton , F. Clevaa , E. Cocciaab , C. N. Colacinoab , J. Colas , A. Collaab , M. Colombinib , R. Conte , D. Cook , T. R. Corbitt , N. Cornish , A. Corsia , C. A. Costa , M. Coughlin , J. -P. Coulona , D. M. Coward , D. C. Coyne , J. D. E. Creighton , T. D. Creighton , A. M. Cruise , R. M. Culter , A. Cumming , L. Cunningham , E. Cuoco , K. Dahl , S. L. Danilishin , R. Dannenberg , S. D'Antonioa , K. Danzmann , K. Das , V. Dattilo , B. Daudert , H. Daveloza , M. Daviera , G. Davies , E. J. Daw , R. Day , T. Dayanga , R. De Rosaab , D. DeBra , G. Debreczeni , J. Degallaix , M. del Preteac , T. Dent , V. Dergachev , R. DeRosa , R. DeSalvo , S. Dhurandhar , L. Di Fiorea , A. Di Lietoab , I. Di Palma , M. Di Paolo Emilioac , A. Di Virgilioa , M. Díaz , A. Dietz , F. Donovan , K. L. Dooley , S. Dorsher , E. S. D. Douglas , M. Dragocd , R. W. P. Drever , J. C. Driggers , J. -C. Dumas , S. Dwyer , T. Eberle , M. Edgar , M. Edwards , A. Effler , P. Ehrens , R. Engel , T. Etzel , M. Evans , T. Evans , M. Factourovich , V. Fafoneab , S. Fairhurst , Y. Fan , B. F. Farr , D. Fazi , H. Fehrmann , D. Feldbaum , I. Ferranteab , F. Fidecaroab , L. S. Finn , I. Fiori , R. Flaminio , M. Flanigan , S. Foley , E. Forsi , L. A. Fortea , N. Fotopoulos , J. -D. Fourniera , J. Franc , S. Frascaab , F. Frasconia , M. Frede , M. Frei , Z. Frei , A. Freise , R. Frey , T. T. Fricke , D. Friedrich , P. Fritschel , V. V. Frolov , P. Fulda , M. Fyffe , M. Galimberti , L. Gammaitoniab , J. Garcia , J. A. Garofoli , F. Garufiab , M. E. Gáspár , G. Gemme , E. Genin , A. Gennaia , S. Ghosh , J. A. Giaime , S. Giampanis , K. D. Giardina , A. Giazottoa , C. Gill , E. Goetz , L. M. Goggin , G. González , M. L. Gorodetsky , S. Goßler , R. Gouaty , C. Graef , M. Granata , A. Grant , S. Gras , C. Gray , R. J. S. Greenhalgh , A. M. Gretarsson , C. Greveriea , R. Grosso , H. Grote , S. Grunewald , G. M. Guidiab , C. Guido , R. Gupta , E. K. Gustafson , R. Gustafson , B. Hage , J. M. Hallam , D. Hammer , G. Hammond , J. Hanks , C. Hanna , J. Hanson , J. Harms , G. M. Harry , I. W. Harry , E. D. Harstad , M. T. Hartman , K. Haughian , K. Hayama , J. -F. Hayaub , T. Hayler , J. Heefner , H. Heitmann , P. Helloa , M. A. Hendry , I. S. Heng , A. W. Heptonstall , V. Herrera , M. Hewitson , S. Hild , D. Hoak , K. A. Hodge , K. Holt , T. Hong , S. Hooper , D. J. Hosken , J. Hough , E. J. Howell , D. Huet , B. Hughey , S. Husa , S. H. Huttner , D. R. Ingram , R. Inta , T. Isogai , A. Ivanov , P. Jaranowskid , W. W. Johnson , D. I. Jones , G. Jones , R. Jones , L. Ju , P. Kalmus , V. Kalogera , S. Kandhasamy , J. B. Kanner , E. Katsavounidis , W. Katzman , K. Kawabe , S. Kawamura , F. Kawazoe , W. Kells , M. Kelner , D. G. Keppel , A. Khalaidovski , F. Y. Khalili , E. A. Khazanov , H. Kim , N. Kim , P. J. King , D. L. Kinzel , J. S. Kissel , S. Klimenko , V. Kondrashov , R. Kopparapu , S. Koranda , W. Z. Korth , I. Kowalskab , D. Kozak , V. Kringel , S. Krishnamurthy , B. Krishnan , A. Królakae , G. Kuehn , R. Kumar , P. Kwee , M. Landry , B. Lantz , N. Lastzka , A. Lazzarini , P. Leaci , J. Leong , I. Leonor , N. Leroya , N. Letendre , J. Li , T. G. F. Lia , N. Liguoriab , P. E. Lindquist , N. A. Lockerbie , D. Lodhia , M. Lorenzinia , V. Lorietteb , M. Lormand , G. Losurdoa , P. Lu , J. Luan , M. Lubinski , H. Lück , A. P. Lundgren , E. Macdonald , B. Machenschalk , M. MacInnis , M. Mageswaran , K. Mailand , E. Majoranaa , I. Maksimovicb , N. Mana , I. Mandel , V. Mandic , M. Mantovaniac , A. Marandi , F. Marchesonia , F. Marion , S. Márka , Z. Márka , E. Maros , J. Marque , F. Martelliab , I. W. Martin , R. M. Martin , J. N. Marx , K. Mason , A. Masserot , F. Matichard , L. Matone , R. A. Matzner , N. Mavalvala , R. McCarthy , D. E. McClelland , S. C. McGuire , G. McIntyre , D. J. A. McKechan , G. Meadors , M. Mehmet , T. Meier , A. Melatos , A. C. Melissinos , G. Mendell , R. A. Mercer , L. Merill , S. Meshkov , C. Messenger , M. S. Meyer , H. Miao , C. Michel , L. Milanoab , J. Miller , Y. Minenkova , Y. Mino , V. P. Mitrofanov , G. Mitselmakher , R. Mittleman , O. Miyakawa , B. Moe , P. Moesta , M. Mohan , S. D. Mohanty , S. R. P. Mohapatra , D. Moraru , G. Moreno , N. Morgado , A. Morgiaab , S. Moscaab , V. Moscatellia , K. Mossavi , B. Mours , C. M. Mow--Lowry , G. Mueller , S. Mukherjee , A. Mullavey , H. Müller-Ebhardt , J. Munch , P. G. Murray , T. Nash , R. Nawrodt , J. Nelson , I. Neriab , G. Newton , E. Nishida , A. Nishizawa , F. Nocera , D. Nolting , E. Ochsner , J. O'Dell , G. H. Ogin , R. G. Oldenburg , B. O'Reilly , R. O'Shaughnessy , C. Osthelder , C. D. Ott , D. J. Ottaway , R. S. Ottens , H. Overmier , B. J. Owen , A. Page , G. Pagliaroliac , L. Palladinoac , C. Palombaa , Y. Pan , C. Pankow , F. Paolettia , M. A. Papa , A. Parameswaran , S. Pardiab , M. Parisiab , A. Pasqualetti , R. Passaquietiab , D. Passuelloa , P. Patel , D. Pathak , M. Pedraza , L. Pekowsky , S. Penn , C. Peralta , A. Perreca , G. Persichettiab , M. Phelps , M. Pichota , M. Pickenpack , F. Piergiovanniab , M. Pietkad , L. Pinard , I. M. Pinto , M. Pitkin , H. J. Pletsch , M. V. Plissi , J. Podkaminer , R. Poggianiab , J. Pöld , F. Postiglione , M. Prato , V. Predoi , L. R. Price , M. Prijatelj , M. Principe , S. Privitera , R. Prix , G. A. Prodiab , L. Prokhorov , O. Puncken , M. Punturoa , P. Puppoa , V. Quetschke , F. J. Raab , D. S. Rabelingab , I. Rácz , H. Radkins , P. Raffai , M. Rakhmanov , C. R. Ramet , B. Rankins , P. Rapagnaniab , V. Raymond , V. Reab , K. Redwine , C. M. Reed , T. Reed , T. Regimbaua , S. Reid , D. H. Reitze , F. Ricciab , R. Riesen , K. Riles , P. Roberts , N. A. Robertson , F. Robineta , C. Robinson , E. L. Robinson , A. Rocchia , S. Roddy , L. Rolland , J. Rollins , J. D. Romano , R. Romanoac , J. H. Romie , D. Rosińskacf , C. Röver , S. Rowan , A. Rüdiger , P. Ruggi , K. Ryan , S. Sakata , M. Sakosky , F. Salemi , M. Salit , L. Sammut , L. Sancho de la Jordana , V. Sandberg , V. Sannibale , L. Santamaría , I. Santiago-Prieto , G. Santostasi , S. Saraf , B. Sassolas , B. S. Sathyaprakash , S. Sato , M. Satterthwaite , P. R. Saulson , R. Savage , R. Schilling , S. Schlamminger , R. Schnabel , R. M. S. Schofield , B. Schulz , B. F. Schutz , P. Schwinberg , J. Scott , S. M. Scott , A. C. Searle , F. Seifert , D. Sellers , A. S. Sengupta , D. Sentenac , A. Sergeev , D. A. Shaddock , M. Shaltev , B. Shapiro , P. Shawhan , T. Shihan Weerathunga , D. H. Shoemaker , A. Sibley , X. Siemens , D. Sigg , A. Singer , L. Singer , A. M. Sintes , G. Skelton , B. J. J. Slagmolen , J. Slutsky , J. R. Smith , M. R. Smith , N. D. Smith , R. Smith , K. Somiya , B. Sorazu , J. Soto , F. C. Speirits , L. Sperandioab , M. Stefszky , A. J. Stein , J. Steinlechner , S. Steinlechner , S. Steplewski , A. Stochino , R. Stone , K. A. Strain , S. Strigin , A. S. Stroeer , R. Sturaniab , A. L. Stuver , T. Z. Summerscales , M. Sung , S. Susmithan , P. J. Sutton , B. Swinkels , G. P. Szokoly , M. Tacca , D. Talukder , D. B. Tanner , S. P. Tarabrin , J. R. Taylor , R. Taylor , P. Thomas , K. A. Thorne , K. S. Thorne , E. Thrane , A. Thüring , C. Titsler , K. V. Tokmakov , A. Toncelliab , M. Tonelliab , O. Torreac , C. Torres , C. I. Torrie , E. Tournefier , F. Travassoab , G. Traylor , M. Trias , K. Tseng , L. Turner , D. Ugolini , K. Urbanek , H. Vahlbruch , B. Vaishnav , G. Vajenteab , M. Vallisneri , J. F. J. van den Brandab , C. Van Den Broeck , S. van der Puttena , M. V. van der Sluys , A. A. van Veggel , S. Vass , M. Vasuth , R. Vaulin , M. Vavoulidisa , A. Vecchio , G. Vedovatoc , J. Veitch , P. J. Veitch , C. Veltkamp , D. Verkindt , F. Vetranoab , A. Viceréab , A. E. Villar , J. -Y. Vineta , H. Voccaa , C. Vorvick , S. P. Vyachanin , S. J. Waldman , L. Wallace , A. Wanner , R. L. Ward , M. Wasa , P. Wei , M. Weinert , A. J. Weinstein , R. Weiss , L. Wen , S. Wen , P. Wessels , M. West , T. Westphal , K. Wette , J. T. Whelan , S. E. Whitcomb , D. White , B. F. Whiting , C. Wilkinson , P. A. Willems , H. R. Williams , L. Williams , B. Willke , L. Winkelmann , W. Winkler , C. C. Wipf , A. G. Wiseman , G. Woan , R. Wooley , J. Worden , J. Yablon , I. Yakushin , H. Yamamoto , K. Yamamoto , H. Yang , D. Yeaton-Massey , S. Yoshida , P. Yu , M. Yvert , M. Zanolin , L. Zhang , Z. Zhang , C. Zhao , N. Zotov , M. E. Zucker , J. Zweizig , R. L. Aptekar , W. V. Boynton , M. S. Briggs , T. L. Cline , V. Connaughton , D. D. Frederiks , N. Gehrels , J. O Goldsten , D. Golovin , A. J. van der Horst , K. C. Hurley , Y. Kaneko , A. von Kienlin , C. Kouveliotou , H. A. Krimm , L. Lin , I. Mitrofanov , M. Ohno , V. D. Palshin , A. Rau , A. Sanin , M. S. Tashiro , Y. Terada , K. Yamaoka

SGR 0418+5729: a low-magnetic-field magnetar

Soft gamma-ray repeaters and anomalous X-ray pulsars are a small (but growing) group of X-ray sources characterized by the emission of short bursts and by a large variability in their persistent flux. They are believed to be magnetars, i.e.…

High Energy Astrophysical Phenomena · Physics 2015-05-27 P. Esposito , N. Rea , R. Turolla , G. L. Israel , S. Zane , L. Stella , C. Kouveliotou , S. Mereghetti , A. Tiengo , D. Gotz , E. Gogus

AXPs and SGRs in the outer gap model: confronting Fermi observations

Anomalous X-ray pulsars (AXPs) and soft gamma-ray repeaters (SGRs) are magnetar candidates, i.e., neutron stars powered by strong magnetic field. If they are indeed magnetars, they will emit high-energy gamma-rays which are detectable by…

High Energy Astrophysical Phenomena · Physics 2015-05-27 H. Tong , L. M. Song , R. X. Xu

Resolving dichotomy in compact objects through continuous gravitational waves observation

More than two dozen soft gamma-ray repeaters (SGRs) and anomalous X-ray pulsars (AXPs) have been detected so far. These are isolated compact objects. Many of them are either found to be associated with supernova remnants or their surface…

High Energy Astrophysical Phenomena · Physics 2021-10-08 Surajit Kalita , Tushar Mondal , Christopher A. Tout , Tomasz Bulik , Banibrata Mukhopadhyay

X-ray Perspective of the Twisted Magnetospheres of Magnetars

Anomalous X-ray pulsars (AXPs) and soft gamma-ray repeaters (SGRs) are recognized as the most promising magnetar candidates, as indicated by their energetic bursts and rapid spin-downs. It is expected that the strong magnetic field leaves…

High Energy Astrophysical Phenomena · Physics 2015-05-27 Shan-Shan Weng , Ersin Gogus , Tolga Guver , Lin Lin

SGRs and AXPs as rotation powered massive white dwarfs

SGR 0418+5729 is a "Rosetta Stone" for deciphering the energy source of Soft Gamma Ray Repeaters (SGRs) and Anomalous X-ray Pulsars (AXPs). We show a model based on canonical physics and astrophysics for SGRs and AXPs powered by massive…

Solar and Stellar Astrophysics · Physics 2015-05-27 Manuel Malheiro , Jorge A. Rueda , Remo Ruffini

General Relativistic White Dwarfs and Their Astrophysical Implications

We consider applications of general relativistic uniformly-rotating white dwarfs to several astrophysical phenomena related to the spin-up and the spin-down epochs and to delayed type Ia supernova explosions of super-Chandrasekhar white…

Solar and Stellar Astrophysics · Physics 2014-12-30 Kuantay Boshkayev , Jorge A. Rueda , Remo Ruffini , Ivan Siutsou

Magneto-rotational and thermal evolution of magnetars with crustal magnetic fields

Soft Gamma-ray Repeaters (SGRs) and Anomalous X-ray Pulsars (AXPs) are interpreted as young highly magnetized neutron stars (NSs). Their X-ray luminosity in quiescence, exceeding 10^{35} erg s^{-1} cannot be explained as due to cooling of a…

Astrophysics · Physics 2007-05-23 U. Geppert , D. Page , M. Colpi , T. Zannias

High Magnetic Field Rotation-powered Pulsars

Anomalous X-ray pulsars and soft gamma repeaters have recently emerged as a unified class of neutron stars, identified by dramatic X-ray and gamma-ray outbursts and via luminous X-ray pulsations, both thought to be powered by the decay of…

High Energy Astrophysical Phenomena · Physics 2015-05-20 C. -Y. Ng , V. M. Kaspi

A variable absorption feature in the X-ray spectrum of a magnetar

Soft gamma-ray repeaters (SGRs) and anomalous X-ray pulsars (AXPs) are slowly rotating, isolated neutron stars that sporadically undergo episodes of long-term flux enhancement (outbursts) generally accompanied by the emission of short…

High Energy Astrophysical Phenomena · Physics 2013-08-26 Andrea Tiengo , Paolo Esposito , Sandro Mereghetti , Roberto Turolla , Luciano Nobili , Fabio Gastaldello , Diego Gotz , GianLuca Israel , Nanda Rea , Luigi Stella , Silvia Zane , Giovanni F. Bignami

A white dwarf merger as progenitor of the anomalous X-ray pulsar 4U 0142+61?

It has been recently proposed that massive fast-rotating highly-magnetized white dwarfs could describe the observational properties of some of Soft Gamma-Ray Repeaters (SGRs) and Anomalous X-Ray Pulsars (AXPs). Moreover, it has also been…

Solar and Stellar Astrophysics · Physics 2014-03-28 J. A. Rueda , K. Boshkayev , L. Izzo , R. Ruffini , P. Loren Aguilar , B. Kulebi , G. Aznar Siguan , E. Garcia Berro

Is magnetar a fact or fiction to us?

The key point of studying AXPs/SGRs (anomalous X-ray pulsars/soft gamma-ray repeaters) is relevant to the energy budget. Historically, rotation was thought to be the only free energy of pulsar until the discovery of accretion power in X-ray…

High Energy Astrophysical Phenomena · Physics 2015-06-11 H. Tong , R. X. Xu

Low-magnetic-field magnetars

It is now widely accepted that soft gamma repeaters and anomalous X-ray pulsars are the observational manifestations of magnetars, i.e. sources powered by their own magnetic energy. This view was supported by the fact that these `magnetar…

High Energy Astrophysical Phenomena · Physics 2013-10-07 R. Turolla , P. Esposito

Can SGRs/AXPs originate from neutron star binaries?

Soft gamma repeaters (SGRs) and anomalous X-ray pulsars (AXPs) are two groups of enigmatic objects, which have been extensively investigated in past few decades. Based on the ample information about their timing behaviors, spectra, and…

High Energy Astrophysical Phenomena · Physics 2014-12-10 J. Wang , H. -K. Chang

Spectropolarimetric Survey of Hydrogen-rich White Dwarf Stars

We have conducted a survey of 61 southern white dwarfs searching for magnetic fields using Zeeman spectropolarimetry. Our objective is to obtain a magnetic field distribution for these objects and, in particular, to find white dwarfs with…

Astrophysics · Physics 2008-11-26 A. Kawka , S. Vennes , G. D. Schmidt , D. T. Wickramasinghe , R. Koch