Dima Zyuzin, Yury Shibanov, Andrey Danilenko, Ronald E. Mennickent, Sergey Zharikov
We report the first high spatial resolution near-infrared imaging of the Vela pulsar in the $K_s$ band obtained with new adaptive optics system recently mounted on Gemini-South telescope. We firmly detect the pulsar, for the first time, in this band with $K_s$ $\approx$ 21\fm8, and resolve in details an extended feature barely detected previously in the immediate vicinity of the pulsar in $J_sH$ bands. The pulsar $K_s$ flux is fully consistent with the extension of a flat optical spectrum of the pulsar towards the infrared and does not confirm a strong infrared flux excess in the pulsar emission suggested early by low spatial resolution data. The extended feature is about twice brighter than the pulsar and likely associated with its X-ray counter-jet. It is extended $\sim$ 2\asec southwards of the pulsar along the X-ray counter-jet and shows knot-like structures and a red spectrum.
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http://arxiv.org/abs/1306.0346
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