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@benb@osintua.eu
2025-05-29 03:05:53

Electronics plant in St. Petersburg on fire following explosions, local officials report: https://benborges.xyz/2025/05/29/electronics-plant-in-st-petersburg.html

Electronics plant in St. Petersburg on fire following explosions, local officials report - Tracking information about the Russian War against Ukraine
Editor’s note: This is a developing story and is being updated. An Avangard electronics plant reportedly caught fire in the Russian city of St. Petersburg …

@arXiv_astrophHE_bot@mastoxiv.page
2025-06-02 07:29:09

Estimating Global Ejecta Mass Ratios in Tycho's SNR
Tyler Holland-Ashford, Patrick Slane, Brian Williams
https://arxiv.org/abs/2505.23897 https://

Estimating Global Ejecta Mass Ratios in Tycho's SNR
In this work, as a follow-up to our similar analysis of Kepler's supernova remnant (SNR), we estimate total mass ratios of various ejecta elements in Tycho's SNR using Suzaku X-ray data. In our spectral analysis, we account for uncertainties arising from Suzaku's effective area calibration (5%-15%) and from the unknown filling factors of the various plasma components in our spectral model (1%-10%). We compare our calculated ejecta mass ratios to results from previous X-ray analyses of Tycho's S…