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arXiv · 1110.5273

VLT observations of Fermi pulsars

R. P. Mignani·A. Shearer·A. de Luca·P. Moran·S. Collins·M. Marelli
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Abstract

Many energetic gamma-ray pulsars discovered by Fermi are promising candidates for optical follow-ups. We present the results of the first deep optical observations of the two Vela-like Fermi pulsars PSR J1357-6429 and PSR J1048-5832 performed with the VLT. However, they have not been detected down to V~27 and V~27.6, respectively (3 sigma). These upper limits suggest an efficiency in converting spin-down power into optical luminosity < 7x10d-7 and <6x10d-6, respectively, lower than the Crab pulsar and, possibly, more compatible with the spin-down age of these two pulsars.

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R. P. Mignani, A. Shearer, A. de Luca, P. Moran, S. Collins, M. Marelli. 2011-10-24. VLT observations of Fermi pulsars. https://arxiv.org/abs/1110.5273

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