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astro-ph2000★ 11 cited
Intrinsic colour calibration for F, G, K stars
Piercarlo Bonifacio, Elisabetta Caffau, Paolo Molaro
We derive an intrinsic colour calibration for F--K stars using broad band Johnson colours and line indices KP and HP2. Through this calibration we can determine E(B-V) of an indivi…
astro-ph2000
Photometry of Nova V 1493 Aql
Piercarlo Bonifacio, Pierluigi Selvelli, Elisabetta Caffau
We report on photometric observations of V 1493 Aql during the early decline and highlight some uncommon aspects of the light curve. V 1493 Aql was hotter at maximum light than in…