Title of article
X-ray emission from PTT stars Original Research Article
Author/Authors
G. Del Zanna، نويسنده , , H.L. Worters، نويسنده , , G.E. Bromage، نويسنده , , C.A. Foley، نويسنده , , H.E. Mason، نويسنده , , By M. Landini ، نويسنده , , David A. Whiting، نويسنده ,
Issue Information
دوهفته نامه با شماره پیاپی سال 2006
Pages
7
From page
1475
To page
1481
Abstract
We present preliminary results on an XMM-Newton observation dedicated to Post-T-Tauri (PTT) stars. We observed the visual binary 2RE J0241-53 of the Horologium association of nearby PTT stars. The XMM observations have been complemented with ground-based optical spectroscopy and photometry. Several flares have been observed. The X-ray spectrum of the brightest star during quiescence indicates a rather cool corona (with no emission at temperatures ⩾10 MK) more similar to that of the Classical T-Tauri star TW Hya (observed with Chandra and XMM-Newton) and at variance with that of another PTT Star (PZ Tel) observed with Chandra. Approximate analysis shows large Ne/Fe, N/Fe, C/Fe abundances (compared to solar photospheric values).
Keywords
Post-T-Tauri stars , X-ray emission , Spectroscopy
Journal title
Advances in Space Research
Serial Year
2006
Journal title
Advances in Space Research
Record number
1131160
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