Fig. 3. Multiwavelength spectrum, versus , for PSR1706-44. Data are taken from the compilations of Thompson et al. (1996, 1999), except for the points marked `V' which are from this work. The point marked `RXTE' is from Ray et al. (1999), and that marked `R' is from CK98. Our two V points correspond to two estimates which should bracket the dereddened upper limit in the visual: assumes minimum extinction () and the pulsar lying outside the PSF of Star 1, assumses maximum extinction () and the pulsar lying close to Star 1 in projection. The point by CK98 is likely to underestimate the extinction.