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Physics  2002 

Errata: The X-Ray Emission Measure (EM) of the Young Stellar Objects (YSOs) in the Rho Ophiuchi (Rho Oph) and Monoceros R2 Dark Clouds (Mon R2)

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Abstract:

Errors were made in the calculations of EMs using the best fit normalizations in XSPEC. Lists of the errors and corrections are as follows. (1)Tables 1, 3, and 4 in ApJ, 557, 747 and astro-ph/0104190 (YSOs in Rho Oph): All the EMs in these tables should be multiplied by pi; the log(EM) in the first raw in Table 1, for example, is 52.6(52.2--53.2), not 52.1(51.7--52.7). (2)Figures 7 and 9 in ApJ, 557, 747 and astro-ph/0104190 (YSOs in Rho Oph): The EM plots should be systematically up-shifted by the factor of pi. (3)Table 3 in ApJ, 563, 361 and astro-ph/0108078 (young brown dwarfs in Rho Oph): All the EMs in this table should be multiplied by pi; the log(EM) in the first raw, for example, is 52.1(52.0--52.6), not 51.6(51.5--52.1). (4)Table 1 in ApJ, 567, 423 and astro-ph/0110462 (YSOs in Mon R2): All the EMs in this table should be divided by 10; the log(EM) in the first raw, for example, is 52.5(52.1--52.9), not 53.5(53.1--53.9). All the spectral parameters except EM are unchanged. These errors of EM do not affect any of the conclusions of the relevant papers. In addition, Gregorio-Hetem, J., Montmerle, T., Casanova, S., and Feigelson, E. D.1998, A&A, 331, 193 should be included in the reference list of ApJ, 567, 423 (astro-ph/0110462).

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