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MUSE observations of the optical nebula surrounding the central compact object in the Vela Junior Supernova Remnant by Suherli, Janette; Safi-Harb, Samar; Seitenzahl, Ivo R.; Ghavamian, Parviz; Ho, Wynn C. G.; Li, Chuan-Jui; Ruiter, Ashley J.; Sutherland, Ralph S.; Vogt, Frédéric P. A. is a scholarly article available to read on EtoBox.

What is MUSE observations of the optical nebula surrounding the central compact object in the Vela Junior Supernova Remnant about?

Central Compact Objects (CCOs), neutron stars found near the centre of some Supernova Remnants (SNRs), have been almost exclusively studied in X-rays and are thought to lack the wind nebulae typically seen around young, rotation-powered pulsars. We present the first, spatially-resolved, morphological and spectroscopic study of the optical nebula observed at the location of CXOU J085201.4-461753, the CCO in the heart of the Vela Junior SNR. It is currently the only Galactic CCO with a spatially coincident nebula detected at optical wavelengths, whose exact nature remains uncertain. New MUSE integral field spectroscopy data confirm that the nebula, shaped like a smooth blob extending 8" in diameter, is dominated by [N II]$\lambda\lambda$6548,6583 emission. The data reveals a distinct and previously unobserved morphology of the H$\alpha$ emission, exhibiting an arc-like shape reminiscent of a bow shock nebula. We observe a significantly strong [N II] emission relative to H$\alpha$, with the [N II]$\lambda\lambda$6548,6583 up to 34 times the intensity of the H$\alpha$ emission within the optical nebula environment. Notably, the [N II] and H$\alpha$ structures are not spatially coincide

Author

Suherli, Janette; Safi-Harb, Samar; Seitenzahl, Ivo R.; Ghavamian, Parviz; Ho, Wynn C. G.; Li, Chuan-Jui; Ruiter, Ashley J.; Sutherland, Ralph S.; Vogt, Frédéric P. A.

Published

2023

Language

EN