X-ray observations of the accreting Be, X-ray binary pulsar A 0535+26 in outburst [Elektronische Ressource] / vorgelegt von Isabel Caballero Doménech

X-ray observations of theaccreting Be/X-ray binary pulsarA 0535+26 in outburstDissertationzur Erlangung des Grades einesDoktors der Naturwissenschaftender Fakultät für Mathematik und Physikder Eberhard Karls Universität Tübingenvorgelegt vonISABEL CABALLERO DOMÉNECHaus Madrid2009Selbstverlegt von: I. Caballero Doménech, Neue Straße 16, 72070 TübingenTag der mündlichen Prüfung: 20.04.2009Dekan: Prof. Dr. W. Knapp1. Berichterstatter: Prof. Dr. A. Santangelo2. Berichterstatter: Prof. Dr. K. WernerAbstractNeutron stars are compact objects, characterized byR∼ 10−14 km radius,M ∼15 −31.4 M mass and extremely high central densities ρ ∼ 10 g cm . If they are part⊙of a binary system, a flow of matter can take place from the companion star onto theneutron star. The accretion of matter onto neutron stars is one of the most powerfulsources of energy in the universe. The accretion of matter takes place under extreme8−15physical conditions, with magnetic fields in the range B ∼ 10 G, which areimpossible to reproduce on terrestrial laboratories. Therefore, accreting neutron starsare unique laboratories to study the matter under extreme conditions.In this thesis, X-ray observations of the accreting Be/X-ray binary A 0535+26during a normal (type I) outburst are presented.