Spectral features and variable circular polarisation in the radio emission from the pre-cataclysmic variable QS Vir

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Table 1.

X-ray flux of QS Vir as observed by Swift/XRT.

Target ID	Date	Flux	Luminosity	Photon index	0−10 keV counts
		(10⁻¹² erg s⁻¹ cm⁻²)	10²⁹ erg s⁻¹
15432	2022 Dec. 11	2.0 $_{- 0.8}^{+ 1.1}$ $^{+1.1}_{-0.8}$	6 $_{- 2}^{+ 3}$ $^{+3}_{-2}$	1.6 ± 0.4	20
15432	2022 Dec. 31	1.6 $_{- 0.7}^{+ 1.1}$ $^{+1.1}_{-0.7}$	4 $_{- 2}^{+ 3}$ $^{+3}_{-2}$	1.6 ± 0.4	27
15477	2023 Jan. 19	1.9 $_{- 1.0}^{+ 1.8}$ $^{+1.8}_{-1.0}$	6 $_{- 3}^{+ 5}$ $^{+5}_{-3}$	1.6 ± 0.4	11
Combined	–	1.8 $_{- 0.6}^{+ 0.9}$ $^{+0.9}_{-0.6}$	5.4 $_{- 1.8}^{+ 2.7}$ $^{+2.7}_{-1.8}$	1.5 $_{- 0.4}^{+ 0.3}$ $^{+0.3}_{-0.4}$	58

Notes. 1−10 keV Swift X-ray flux of QS Vir over three epochs. The first three rows show the flux calculated for each epoch, when the photon index was linked for all observations. The last row was calculated assuming that both the flux and photon index were constant for all observations. Errors are 90% confidence limits. The luminosity was calculated using the Gaia EDR3 distance of Bailer-Jones et al. (2021), 50.10 $_{- 0.06}^{+ 0.07}$ $^{+0.07}_{-0.06}$ pc.

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