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The 2002 Outburst of the Black-Hole X-ray Binary 4U 1543-47: Optical and Infrared Light Curves

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arxiv astro-ph/0408156 v1 pith:N5C4C53D submitted 2004-08-09 astro-ph

M.M. Buxton , C.D. Bailyn This is my paper · ORCID
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keywords infraredmaximumopticaloutburstsecondarylightsimultaneousappears
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We have obtained simultaneous optical and near infrared observations of 4U 1543-47 during its 2002 outburst. The most striking feature of the outburst light curve is the secondary maximum which appears after the object transitions into the low-hard state. This secondary maximum is much stronger in the infrared bands than optical. We suggest that the origin of the secondary maximum flux may be synchrotron radiation associated with a jet. Close infrared monitoring may lead to reliable triggers for simultaneous multiwavelength campaigns to study jet formation processes.

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  1. Radio flares and X-ray hardening embedded in the long soft state of 4U 1543-475

    astro-ph.HE 2026-08 conditional novelty 6.0 of 10

    Radio flares in 4U 1543-475 coincided with X-ray hardening, enhanced coronal emission, and lower reflection fraction, suggesting transient inner-disk changes accompany jet launching.

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