Using various spacecraft, astronomers from India and Chile have performed X-ray observations of a peculiar intermediate polar known as TX Columbae. Results of the observational campaign, published September 7 on the pre-print server arXiv, shed more light on the properties and behavior of this polar.
X-ray light curves and corresponding power spectra of TX Columbae at three different epochs of observations. Credit:Using various spacecraft, astronomers from India and Chile have performed X-ray observations of a peculiar intermediate polar known as TX Columbae. Results of the observational campaign, published September 7 on the pre-print serverbinary star systems
In some CVs, accretion occurs through a truncated accretion disk when the white dwarf is moderately magnetic. These systems are known as intermediate polars .orbital period TX Columbae was initially identified as an X-ray source in the HEAO-1 all-sky survey. Based on the soft X-ray detection and optical pulsation, it was classified as an IP, about 3,000Some of the previous observations of TX Col have found that it is accreting predominantly via a disk, while some studies suggested that it is substantially accreting via stream, making it a disk overflow system.
Furthermore, the research found that the power of dominant frequency changes from one observation to another. Thenoted that a similar result was obtained from the long-term high cadence data collected with NASA's TESS satellite.
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