Photometric monitoring of Luminous Blue Variables

arxiv: 1011.3346 · v1 · pith:ZGRFPITEnew · submitted 2010-11-15 · 🌌 astro-ph.SR

Photometric monitoring of Luminous Blue Variables

Carla Buemi , Elisa Distefano , Paolo Leto , Francesco Schilliro' , Corrado Trigilio , Grazia Umana , Stefano Bernabei , Giuseppe Cutispoto

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Sergio Messina

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keywords blueluminousmonitoringphotometricvariabilityvariablesamplitudesband

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We present some preliminary results from our program of intensive near-infrared photometric monitoring of a sample of confirmed and candidate Luminous Blue Variables (LBVs) conducted from 2008 to 2010. Clear long-term variability has been observed for Wray 17-96 and V481 Sct, with overall brightness variation greater than 1 mag in the J band. Other sources, such as LBV 1806-20 showed detectable variability with amplitudes of few tenths of a magnitude with time-scale of about 60 days.

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Photometric monitoring of Luminous Blue Variables

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