Pôster para a XLI Reunião da Sociedade Brasileira Astronômica

1. S-PLUS: THE DATA REDUCTION PROCESS.
EDUARDO DOS SANTOS PEREIRA
pereira.somoza@gmail.com
XLI Reunião Anual da Sociedade Astronômica Brasileira.
INTRODUCTION
The Southern Photometric Local Universe Survey (S-PLUS) aims to map about 8000 sq. deg. of Southern sky with twelve optical bands using a new
dedicate 0.8m robotic telescope in Cerro Tololo. The T80-South is equipped with a 9.2k x 9.2k 10 micron pixel E2V detector giving a plate scale of 0.55"/pixel
and a field of view of 2 sq. deg. In this work is presented the reduction process of the images obtained for the period of 2016/09/26 – 2016/09/30. Also it
will be showed the model that will be implemented to process the data in an automatic and massive way.
REDUCTION PROCESS
The reduction process consist in six steps from the raw image. We starting by generating the master frames. First, we generate the master bias, following
the process of creation of mater sky-flat for each filter. The next step is the reduction of individual image, where is removed the master frames, bad pixel
mask, cosmetic correction like airplane and satellite track, and combine all amplifier to remove the gaps between amplifiers. The last reduction step is the
combination of three reduced image in order to produce a deeper image. Using the final reduced image by filter, it is possible to combine this image to
produce a color RGB astronomical image.
RESULT
Raw Image Master Bias Master Flat
Individual Reduced Image
Combined Image RGB Image
In the top of the above panel, we have the raw image, master bias and master sky-flat, respectively. In the meddle it is
presented the individual reduced image. In the bottom of the panel, the left image is the combined image for R filter, and, in
the left panel it is presented the RGB image of NGC5128. The RBG image was produced combining the following filters: R is
for F660 band, G is for R band, B is for G band.
ACKNOWLEDGMENTS
Pereira would like to thank the
Brazilian Agencie CNPq (grant
155666/2016-9) for the financial
support.
XLI Reunião Anual da Sociedade Astronômica Brasileira.
Sao Paulo, Brazil. 4 a 8 de Setembro de 2017