Optical observations of PSR1706-44 with the Test Camera of the VLT-UT1
Abstract
We report on the optical observations of the gamma-ray pulsar PSR1706-44 performed with the Test Camera of the VLT-UT1 during the telescope Science Verification programme. With a limiting magnitude of V~ 27.5, these are the deepest optical observations ever performed for this pulsar, for which, however, no likely counterpart has been detected. The non-detection of PSR1706-44 sets an upper limit on its optical luminosity varying from 2 1028 to 5 1029 erg/ s, depending on the exact amount of interstellar absorption.
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