COBIPLANE: Discovering New Spider Pulsar Candidates

Astronomy#Pulsars🔬 Research|Analyzed: Jan 3, 2026 18:28
Published: Dec 29, 2025 19:19
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ArXiv

Analysis

This paper presents the discovery of five new candidate 'spider' binary millisecond pulsars, identified through an optical photometric survey (COBIPLANE) targeting gamma-ray sources. The survey's focus on low Galactic latitudes is significant, as it probes regions closer to the Galactic plane than previous surveys, potentially uncovering a larger population of these systems. The identification of optical flux modulation at specific orbital periods, along with the observed photometric temperatures and X-ray properties, provides strong evidence for the 'spider' classification, contributing to our understanding of these fascinating binary systems.
Reference / Citation
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"The paper reports the discovery of five optical variables coincident with the localizations of 4FGL J0821.5-1436, 4FGL J1517.9-5233, 4FGL J1639.3-5146, 4FGL J1748.8-3915, and 4FGL J2056.4+3142."
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ArXivDec 29, 2025 19:19
* Cited for critical analysis under Article 32.