Reference : Instrumental effects and the Stroemgren photometric system
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/20178
Instrumental effects and the Stroemgren photometric system
English
Manfroid, Jean mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO) >]
Sterken, C. [Brussel, Vrije Universiteit, Brussels, Belgium]
1-Dec-1987
Astronomy and Astrophysics. Supplement Series
EDP Sciences
71
539-555
Yes (verified by ORBi)
International
0365-0138
Les Ulis
France
[en] ASTRONOMICAL PHOTOMETRY ; STELLAR COLOR ; UBV SPECTRA ; COLOR-MAGNITUDE DIAGRAM ; DATA REDUCTION ; MATCHED FILTERS ; NUMERICAL ANALYSIS
[en] The extent to which the use of different photometers can affect results on stellar color indices was investigated by simultaneously observing a sample of widely different stars with several uvby photometric systems available at the ESO, La Silla, Chile. In one instance, the ESO 50-cm telescope and the four-channel photometer at the Danish 50-cm telescope were used simultaneously. The reductions were performed separately on each data set, using a linear color transformation procedure. The results agree with theoretical investigations which showed that substantial errors can arise from the nonconformity of passbands. It is emphasized that it is necessary to use separate color transformations for various stellar types and classes and for different interstellar reddenings.
Researchers ; Students
http://hdl.handle.net/2268/20178
http://cdsads.u-strasbg.fr/abs/1987A%26AS...71..539M

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