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Spectroscopic and Photometric Observations of the Magnetic Cataclysmic Variable TX Col

Published online by Cambridge University Press:  12 April 2016

Nceba Mhlahlo ,
Stephen B. Potter  and
David Buckley
Nceba Mhlahlo
Affiliation:
South African Astronomical Observatory, Observatory 7935, Cape Town, South Africa
Stephen B. Potter
Affiliation:
South African Astronomical Observatory, Observatory 7935, Cape Town, South Africa
David Buckley
Affiliation:
South African Astronomical Observatory, Observatory 7935, Cape Town, South Africa

Abstract

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Simultaneous photometry and spectroscopy of the Intermediate Polar TX Col were obtained in order to investigate its accretion mode and dynamics. The spectroscopic and photometric power spectra of TX Col are observed to change on relatively short timescales. Spectroscopy reveals a dominant periodicity at the orbital period (5.69 hr) and a spin period of 1909 s in radial velocities, while line equivalent widths show a strong periodicity at the beat period (2106 s). It is the first time that the orbital period has been detected in optical wavelengths.

Type
Part 3. A. Accretion Plasma diagnostics - Observations
Information
International Astronomical Union Colloquium , Volume 190: Magnetic Cataclysmic Variables , 2004 , pp. 156 - 162
Copyright
Copyright © Astronomical Society of the Pacific 2004

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