科研之友
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摘要
In the notes to Table 1, a unit conversion was incorrect. The text should read 1 M(J) Gyr(-1) = 6.02e + 13 g s(-1). As a consequence in the 3rd paragraph of Sect. 3, the mass loss taking place in tau Boo b should be. (M) over dot(X) = 0.011 M(J) Gyr(-1) for rho = 1g cm(-3), or (M) over dot(X) = 3.4 M(circle plus) Gyr(-1) in Earth mass units.
Independently, the values of "log F(X) accumulated", in Col. 12 of Table 1 were calculated using an obsolete formula and were thus slightly underestimated, generally by less than or similar to 0.2. As a consequence Fig. 2 should show all values at a slightly higher position, although this is of no relevance for the conclusions of the paper. Table 1 and Fig. 2 are reproduced in their correct version here. At the end of 5th paragraph of Sect. 2, the hard limit of X-ray flux accumulated after 10 Gyr should be similar to 10(22.14) erg cm(-2), instead of similar to 10(21.76) erg cm(-2), and our highest flux is now 10(21.23) erg cm-2 instead of 10(21.05) erg cm(-2)
- 出版日期2010-10
