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Issue Astron. Astrophys. Suppl. Ser.
Volume 137, Number 3, June II 1999
Page 569
DOI http://dx.doi.org/10.1051/aas:1999255

DOI: 10.1051/aas:1999255

Astron. Astrophys. Suppl. Ser. 137, 569


Erratum


BeppoSAX LECS background subtraction techniques


A.N. Parmar1, T. Oosterbroek1, A. Orr1, M. Guainazzi1, N. Shane1,2, M.J. Freyberg3, D. Ricci4, and A. Malizia4,5


1 Astrophysics Division, Space Science Department of ESA, ESTEC, Postbus 299, 2200 AG Noordwijk, The Netherlands
2 Pembroke College, University of Oxford, St Aldates, Oxford, OX1 1DW, UK
3 Max-Planck-Institut für Extraterrestrische Physik, D-85740 Garching bei München, Germany
4 BeppoSAX Science Data Center, Nuova Telespazio, via Corcolle 19 I-00131 Roma, Italy
5 Department of Physics and Astronomy, Southampton University, SO17 1BJ, UK


Astron. Astrophys. Suppl. Ser. 136 (1999) 407-418


Table 3 in Parmar et al. contains an error: the two first coefficients printed in this table were inadvertently exchanged. The correct table is reproduced below.




Table 3. Coefficients of the fifth-order polynomial fit to the ratio of additional counts in the background semi-annuli divided by source counts as a function of energy in keV. These coefficients can be used to correct counts extracted from the background semi-annuli for source contamination. a0 is the constant term




\begin{tabular} {lccc} \hline\noalign{\smallskip} ${a_{n}}$\space & \multicolum... ..._{5}$\space & $+9.57\ 10^{-7}$\space \\ \noalign{\smallskip} \hline\end{tabular}
 
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