ISP BL Lac X-ray Survey with IceCube Temporal Correlation: Discovery of Class-H Spectral Hardening Source

Yoshimitsu Katayama

doi:10.5281/zenodo.20476509

May 31, 2026Open Access

ISP BL Lac X-ray Survey with IceCube Temporal Correlation: Discovery of Class-H Spectral Hardening Source

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Key Points

The research aims to examine the X-ray spectra of ISP BL Lac objects and discover correlations with IceCube events.
Conducted a complete X-ray spectral survey of 347 ISP BL Lac objects from the 4LAC-DR3 catalog.
Identified sources exhibiting spectral hardening properties.
Performed cross-correlation analysis with IceCube GOLD events across defined temporal windows.
Discovered a unique class of sources that exhibit spectral hardening characteristics.
Significant correlation found between the spectral hardening sources and IceCube GOLD events.

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Implication

X-ray survey identifies spectral hardening in ISP BL Lac sources, suggesting connections with IceCube events.

Abstract

Complete X-ray spectral survey of 347 ISP BL Lac objects from 4LAC-DR3 catalog. Identifies spectral hardening class source. Cross-correlation with IceCube GOLD events using temporal windows.

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Yoshimitsu Katayama (2026) studied this question.

synapsesocial.com/papers/6a1e72e830b38c64201b624d https://doi.org/10.5281/zenodo.20476509

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ISP BL Lac X-ray Survey with IceCube Temporal Correlation: Discovery of Class-H Spectral Hardening Source

Key Points

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Abstract

Discussion

Cite This Study

ISP BL Lac X-ray Survey with IceCube Temporal Correlation: Discovery of Class-H Spectral Hardening Source

Key Points

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Implication

Abstract

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