[en] A common cause of errors in CCD differential photometry is an improper calibration of the array. The importance of these errors is evaluated for different cameras with fields between 3 and 30 arcminutes. The usual superflat illumination corrections based on night sky exposures are often found to be unsatisfactory. ``Photometric superflats'' based on stellar measurements are more reliable and should be used instead.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Manfroid, Jean ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Département d'astrophys., géophysique et océanographie (AGO)
Royer, P.
Rauw, Grégor ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Groupe d'astrophysique des hautes énergies (GAPHE) - Sciences spatiales
Gosset, Eric ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Groupe d'astrophysique des hautes énergies (GAPHE)
Language :
English
Title :
Correction of Systematic Errors in Differential Photometry
Publication date :
2001
Event name :
Astronomical Data Analysis Software and Systems X
Event date :
2001
Audience :
International
Main work title :
Astronomical Data Analysis Software and Systems X, ASP Conference Proceedings, Vol. 238
Author, co-author :
Harnden, F.R. Jr.
Primini, F.A.
Payne, H.E.
Publisher :
Astronomical Society of the Pacific, San Francisco, United States
