XMM-Newton's view of a RS CVn binary CF Tuc.
In: New Astronomy, Jg. 106 (2024-02-01), S. N.PAG
academicJournal
Zugriff:
Coronal emission exhibited by the chromospherically active binaries is important to understand the underlying mechanism. We report the X-ray spectral studies of an RS CVn source CF Tuc using XMM-Newton archival data. The light curve was found to be steady with no flaring activity and the source was in a quiescent X-ray emission state. The source spectrum can be explained by a three-component thin plasma model with temperatures ∼ 0.26 keV, ∼ 1.01 keV, and ∼ 2.14 keV using EPIC MOS and pn data. We found that the source exhibits low abundance Z = 0.1−0.2 Z ⊙ , well in agreement with previous studies. Based on the RGS spectral fits of OVII triplets, we estimated the temperature to be about 1−2 × 106 K and density n e = 1−2 × 1010 cm−3 of the coronal emission region during the quiescent state. [ABSTRACT FROM AUTHOR]
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XMM-Newton's view of a RS CVn binary CF Tuc.
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Autor/in / Beteiligte Person: | Sriram, K. ; Vijaya, A. ; Lahiri, Deblina ; Agrawal, Vivek K. |
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Zeitschrift: | New Astronomy, Jg. 106 (2024-02-01), S. N.PAG |
Veröffentlichung: | 2024 |
Medientyp: | academicJournal |
ISSN: | 1384-1076 (print) |
DOI: | 10.1016/j.newast.2023.102127 |
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