Reference : WFPC2 photometry from subtraction of TinyTim PSFs
Scientific congresses and symposiums : Paper published in a book
Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
http://hdl.handle.net/2268/26221
WFPC2 photometry from subtraction of TinyTim PSFs
English
Remy, M. [ > > ]
Surdej, Jean mailto [Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Astroph. extragalactique et observations spatiales (AEOS) >]
Baggett, S. [Space Telescope Science Inst.]
Wiggs, M. [Space Telescope Science Inst.]
1-Jan-1997
The 1997 HST Calibration Workshop with a New Generation of Instruments, p. 374
374-377
No
Yes
International
[en] POINT SPREAD FUNCTIONS ; IMAGE PROCESSING ; CALIBRATING ; COMPUTATIONAL GRIDS ; ASTRONOMICAL PHOTOMETRY ; ITERATION ; QUASARS ; HIGH RESOLUTION ; VIBRATION ; CAMERAS ; SUBTRACTION
[en] Based upon the subtraction of TinyTim Point Spread Function (PSFs) from Principle Component Image (PC1) point-like objects, a method has been developed to determine the optimal values for the telescope jitter and the Z4 relative focus during calibration or science observations. Using these jitter and focus values, an optimal TinyTim PSF, computed over a resampled grid, is then iteratively fitted to the object, yielding an improvement in the PSF centering, more accurate photometric results and a better detection of underlying structures. Preliminary results seem to indicate that appropriate synthetic TinyTim PSFs perform as well as observed PSFs.
Researchers ; Professionals
http://hdl.handle.net/2268/26221
http://esoads.eso.org/abs/1997hstc.work..374R

File(s) associated to this reference

Fulltext file(s):

FileCommentaryVersionSizeAccess
Open access
Remy_1997_WFPC2 photometry from subtraction of TinyTim PSFs.pdfPublisher postprint104.12 kBView/Open

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.