Be/X-ray Binaries with LOFT

Abstract:

Be/X-ray Binaries with LOFT Page 1 Be/X-ray Binaries with LOFT Colleen A. Wilson-Hodge, C. Ferrigno, D.Klochkov, R. Rothchild, MJ Coe, MH Finger, P. Jenke NASA/MSFC 25 September 2012 Page 2 Outline • Yellow book science – Cyclotron Features and pulse to pulse variability – Centrifugal inhibition – Small Magellanic Clouds • Importance of coordinated optical/IR observations • Other open questions • Summary 2 Page 3 Be X-ray Binaries • High B-field 1012-13 G • Be Star surrounded by decretion disk • Spin periods 1-1000s • Elliptical orbits with periods of 101000 d • Two classes of outbursts – Normal/Type I (orbitally modulated) – Giant/Type II (very bright) – Also faint persistent systems • Most numerous HMXB – ~80 in Milky Way – ~60 in SMC – ~12 in LMC 3 Be Star Circumstellar disk Pulsar in orbit Page 4 Cyclotron Scattering Absorption Features • Electrons interact with the magnetic field, producing line…

Año de publicación:

2012

Keywords:

Fuente:

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