Astronomy and Astrophysics – Astrophysics – Galaxy Astrophysics
Scientific paper
2011-05-22
Astronomy and Astrophysics
Astrophysics
Galaxy Astrophysics
10 pages, 12 figures, submitted to A&A
Scientific paper
We present infrared observations of G21.5-0.9 with the Very Large Telescope, the Canada-France-Hawaii Telescope and the Spitzer Space Telescope. Using the VLT/ISAAC camera equipped with a narrow band [Fe II] 1.64 $\mu$m filter the entire pulsar wind nebula in G21.5-0.9 was imaged. This led to detection of iron line-emitting material in the shape of a broken ring-like structure following the nebula's edge. The detected emission is limb-brightened. We also detect the compact nebula surrounding PSR J1833-1034, both through imaging with the CFHT/AOB-KIR instrument (K' band) and the IRAC camera (all bands) and also through polarimetric observations performed with VLT/ISAAC (Ks band). The emission from the compact nebula is highly polarised with an average value of the linear polarisation fraction $P_{L}^{avg} \simeq 0.47$, and the swing of the electric vector across the nebula can be observed. The infrared spectrum of the compact nebula can be described as a power law of index $\alpha_{IR} = 0.72 \pm 0.11$, and suggests that the spectrum flattens between the infrared and X-ray bands.
Bandiera Rino
Comeron Fernando
Gallant Yves A.
Gouiffès Ch.
Koch Miramond L.
No associations
LandOfFree
Infrared imaging and polarimetric observations of the pulsar wind nebula in G21.5-0.9 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Infrared imaging and polarimetric observations of the pulsar wind nebula in G21.5-0.9, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Infrared imaging and polarimetric observations of the pulsar wind nebula in G21.5-0.9 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-21788