Optical observations of PSR 1706 − 44 with the test camera of the VLT - UT 1 ?
نویسندگان
چکیده
We report on the optical observations of the γ-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 × 10 28 to 5 × 10 29 erg s −1 , depending on the exact amount of interstellar absorption.
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