THE VELA PULSAR AND ITS LIKELY COUNTER-JET IN THE<i>K<sub>s</sub></i>BAND

Zyuzin, D.; Shibanov, Yu. A.; Danilenko, A.; Mennickent, R. E.; Zharikov, S. V.

doi:10.1088/0004-637x/775/2/101

Cited by 17 publications

(24 citation statements)

References 16 publications

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“…Our ALMA observations, together with archival VLT ones in the near-IR, also confirmed the existence of an extended emission structure (the "nebula") at 1. ′′ 4 from the pulsar (Zyuzin et al 2013). JWST observations would better characterise its spectrum in the near-IR/submm.…”

Section: Discussionmentioning

confidence: 99%

“…The open triangles with the error bars are our ALMA data (see Table 1). The rest of the spectrum is built from measurements collected from the literature (see Danilenko et al 2011;Zyuzin et al 2013 and references therein). The dot-dashed line is the extrapolation of the near-UV-optical-near-IR PL spectrum (Zyuzin et al 2013) towards the ALMA bands.…”

Section: Discussionmentioning

confidence: 99%

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The First Detection of a Pulsar with ALMA

Mignani¹,

Paladino²,

Rudak³

et al. 2017

ApJL

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Although there is a general consensus on the fact that pulsars' radio emission is coherent in nature, whereas the emission from the optical to high-energy γrays is due to incoherent processes, it has not been established yet at which wavelengths the transition occurs, a key information for all emission models of pulsar magnetospheres. Of course, to address this issue covering the spectral region between the GHz radio frequencies and the mid-infrared (IR) is crucial. We used the Atacama Large Millimetre Array (ALMA) to observe the Vela pulsar (PSR B0833−45), one of the very few observed in radio and from the mid-IR up to the very high-energy γ-rays. We detected Vela at frequencies of 97.5, 145, 233, and 343.5 GHz, which makes it the first pulsar ever detected with ALMA. Its energy density spectrum follows a power-law of spectral index α = −0.93 ± 0.16. This corresponds to very high brightness temperatures -from 10 17

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

The First Detection of a Pulsar with ALMA

Mignani¹,

Paladino²,

Rudak³

et al. 2017

ApJL

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“…The observed K s magnitudes and A V values for all pulsars except of J1357 and Vela are taken from Zharikov et al (2013). The observed K s magnitude for Vela is taken from Zyuzin et al (2013). X-ray data and other parameters of pulsars are adopted from Kargaltsev & Pavlov (2008).…”

Section: Discussionmentioning

confidence: 99%

Near-infrared observations of PSR J1357−6429

Zyuzin

Zharikov

Shibanov

et al. 2015

Monthly Notices of the Royal Astronomical Society

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PSR J1357−6429 is a young radio pulsar that was detected in X-rays and γ-rays. We present the high spatial resolution near-infrared imaging of the pulsar field in J, H and K s bands obtained with the VLT/NaCo using the Adaptive Optic system. We found a faint source at the most precise pulsar radio position which we propose as the pulsar near-infrared counterpart candidate. It is confidently detected in the J and K s bands, with J = 23.51±0.24 and K s = 21.82±0.25. There is a hint of the source in the H band with an upper limit H > 22.8. The dereddened source fluxes are compatible with the extrapolation of the pulsar X-ray spectrum towards the near-infrared. If the candidate is the true counterpart, by this property PSR J1357−6429 would be similar to the nearby middle-age pulsar PSR B0656+14. In this case, both pulsars demonstrate an unusually high near-infrared efficiency relative to the X-ray efficiency as compared to other pulsars detected in both ranges.

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“…Zyuzin et al (2013) recently reported the extended feature seen in the NIR (K s band) which could be associated with bar at the base of the SE jet or could be analog of the Crab's inner knot. However, this result still requires confirmation.…”

Section: The Crab and Vela Pwne: Similarities And Differencesmentioning

confidence: 99%