[Okc-wp4] Seminar on February 19th

[Haakon Andresen]

Dear Everyone,

The next EO seminar will take place this Thursday.

When: 13:15 19th of February
Where: A5:1003
Speaker: Julia Alhvind
Title: X-Ray Observations of Old Nearby Supernovae and Constraints on Compact Objects Population
Abstract:
The properties of compact objects formed in core-collapse supernovae (SNe) remain uncertain. X-ray observations years to decades after explosion provide a way to probe these young remnants, as hard emission from the central regions can emerge once the ejecta becomes sufficiently transparent. In this talk, I will present a systematic study of late-time X-ray emission from 242 nearby core-collapse SNe based on more than 600 archival observations. I will show new X-ray SN detections, highlight one case with a possible hard central component, and demonstrate how upper limits from the full sample can be used to constrain the young pulsar population.

Best,
Haakon (on behalf of the organisers)

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