Optical and NIR studies of short period low mass X-ray binaries (LMXB)

Authors
Dr.
Pasi Hakala
Date and time
19 Nov 2009 - 23:00 Europe/London
Address

Aula

Talk language
English
Slides language
English
Serie number
0
Description

I present some recent results from our Optical and NIR studies of five short period low-mass X-ray binaries (LMXB's; X1822-371, X1957+115, UW CrB, X1916-05 and X0614+091). Optical photometry and spectroscopy reveal some surprising results on the geometry and evolution of accretions discs in LMXB's. Based on our data, it is increasingly clear that accretion discs in these systems are far from being stable and must undergo substantial precession and/or warping behaviour on timescales less than a day in case of the shortest period systems.

Format
Seminar
Talk Video
https://youtu.be/-eBeh_H3_iQ

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