Bulletin de la Société Royale des Sciences de Liège Bulletin de la Société Royale des Sciences de Liège -  Volume 80 - Année 2011 

Photometric monitoring of Luminous Blue Variables

Carla Buemi, 

INAF-Osservatorio Astrofisico di Catania, Catania Italy

Elisa Distefano, 

INAF-Osservatorio Astrofisico di Catania, Catania Italy, and Dipartimento di Fisica e Astronomia, Universitá di Catania, Catania Italy

Paolo Leto, 

INAF-Osservatorio Astrofisico di Catania, Catania Italy

Francesco Schillirò, 

INAF- Istituto di Radioastronomia, Noto, Italy

Corrado Trigilio, 

INAF-Osservatorio Astrofisico di Catania, Catania Italy

Grazia Umana, 

INAF-Osservatorio Astrofisico di Catania, Catania Italy

Stefano Bernabei, 

Osservatorio astronomico, Bologna,Italy

Giuseppe Cutispoto, 

INAF-Osservatorio Astrofisico di Catania, Catania Italy

Sergio Messina, 

INAF-Osservatorio Astrofisico di Catania, Catania Italy

Abstract

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 a time-scale of about 60 days.

Pour citer cet article

Carla Buemi, Elisa Distefano, Paolo Leto, Francesco Schillirò, Corrado Trigilio, Grazia Umana, Stefano Bernabei, Giuseppe Cutispoto & Sergio Messina, «Photometric monitoring of Luminous Blue Variables», Bulletin de la Société Royale des Sciences de Liège [En ligne], Volume 80 - Année 2011, 351 - 355 URL : http://popups.ulg.be/0037-9565/index.php?id=2811.