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Discovery of a New X-ray Filled Radio Supernova Remnant Around the Pulsar Wind Nebula in 3EG J1809-2328

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abstract

We report the discovery of a partial ~2deg. diameter non-thermal radio shell coincident with Taz, the pulsar wind nebula (PWN) in the error box of the apparently variable gamma-ray source 3EG J1809-2328. We propose that this radio shell is a newly identified supernova remnant (SNR G7.5-1.7) associated with the PWN. The SNR surrounds an amorphous region of thermal X-rays detected in archival ROSAT and ASCA observations putting this system in the mixed-morphology class of supernova remnants. G7.5-1.7 is the fifth such supernova remnant coincident with a bright GeV source, and the fourth containing a pulsar wind nebulae.

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2026 1

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A catalogue of TeV pulsar environments

astro-ph.HE · 2026-06-16 · unverdicted · novelty 7.0

A homogenized catalogue of 128 TeV sources associated with 66 pulsars, covering all evolutionary stages and showing only weak correlation between luminosity and pulsar age.

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  • A catalogue of TeV pulsar environments astro-ph.HE · 2026-06-16 · unverdicted · none · ref 69 · internal anchor

    A homogenized catalogue of 128 TeV sources associated with 66 pulsars, covering all evolutionary stages and showing only weak correlation between luminosity and pulsar age.