I am interested in the development of astronomy in Lebanon in all its aspects, from the amateur community to the development of research. In that regard, I am involved in a project on the search for a good site for a national observatory in Lebanon and a project on the long-term spectroscopic monitoring of Be and AGB stars. The second project is run in collaboration with amateurs through what we call the Observers Group.

Ph.D. in Physics, Université de Montréal, Canada, 1997.

Honors in Physics, Lebanese University, Lebanon, 1989

Refereed Journal Articles

Hajjar, R. & Bastien, P. (2000). V633 Cassiopeiae (LkHα 198) and V628 Cassiopeiae (MWC1080) Revisited!, Astrophysical Journal, 531, 494.

Conference Proceedings

Bastien, P. & Hajjar, R. (2004) Density Distribution in Disks around Protostellar Objects,
in Planetary Systems in the Universe: Observation, Formation and Evolution, IAU Symposium202 , A.J. Penny, P. Artymowicz, A.-M. Lagrange, and S.S. Russell eds., p. 332.

Hajjar, R., Querci, F.R. & Querci, M. (2001) The Network of Oriental Robotic Telescopes
(NORT), in IAU Colloquium 183: Small Telescope Astronomy on Global Scales, ASP Conf.
Series, vol. 246, W.P. Chen, C. Lemme & B. Paczynski, eds. p33.