A Possible Conection Between Magnetars and Gamma-Ray Bursts
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| Natura: | Artículo científico |
| Lingua: | en |
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Universidad Nacional Autónoma de México
2001
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| _version_ | 1876474776587862016 |
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| author | J. E. Horvath |
| author_facet | J. E. Horvath |
| contents | A Possible Conection Between Magnetars and Gamma-Ray Bursts J. E. Horvath M. P. Allen J. A. Pacheco de Freitas Física, Astronomía y Matemáticas We argue that magnetars, neutron stars with strong magnetic fields, can be the powerhouses behind some gamma-ray bursts (GRBs), thanks to effects only possible in presence of high magnetic fields. The production of axions in supernova cores by pair anihilation e+e- -> a is possible in such intense magnetic fields. A fraction of the ~ 1053 erg of binding energy of the newly created neutron star escapes with this axion flux. However, axions in high magnetic fields decay through a -> e+e- with mean life tau ~ 10-4 s, therefore close to the magnetar, producing the relativistic shock with ~ 1051 erg ("fireball") and the GRB. At least one GRB was coincident with an "anomalous" supernova Ic, supporting this scenario. 2001 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57101113 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Vol.11 |
| format | Artículo científico |
| id | redalyc_57101113 |
| institution | Redalyc |
| language | en |
| publishDate | 2001 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | A Possible Conection Between Magnetars and Gamma-Ray Bursts J. E. Horvath Física, Astronomía y Matemáticas A Possible Conection Between Magnetars and Gamma-Ray Bursts J. E. Horvath M. P. Allen J. A. Pacheco de Freitas Física, Astronomía y Matemáticas We argue that magnetars, neutron stars with strong magnetic fields, can be the powerhouses behind some gamma-ray bursts (GRBs), thanks to effects only possible in presence of high magnetic fields. The production of axions in supernova cores by pair anihilation e+e- -> a is possible in such intense magnetic fields. A fraction of the ~ 1053 erg of binding energy of the newly created neutron star escapes with this axion flux. However, axions in high magnetic fields decay through a -> e+e- with mean life tau ~ 10-4 s, therefore close to the magnetar, producing the relativistic shock with ~ 1051 erg ("fireball") and the GRB. At least one GRB was coincident with an "anomalous" supernova Ic, supporting this scenario. 2001 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57101113 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Vol.11 |
| title | A Possible Conection Between Magnetars and Gamma-Ray Bursts |
| topic | Física, Astronomía y Matemáticas |
| url | https://www.redalyc.org/articulo.oa?id=57101113 |