Some results from an Some results from an optical monitoring of four optical monitoring of four quasars at Calar Alto quasars at Calar Alto Observatory (Almería, Observatory (Almería, Spain) Spain) Aurora Ullán (UC) Aurora Ullán (UC) Jan-Erik Ovaldsen (University of Oslo) Jan-Erik Ovaldsen (University of Oslo) Luis Goicoechea (UC) Luis Goicoechea (UC) Rolf Stabell (University of Oslo) Rolf Stabell (University of Oslo)
35
Embed
Some results from an optical monitoring of four quasars at Calar Alto Observatory (Almería, Spain) Aurora Ullán (UC) Jan-Erik Ovaldsen (University of Oslo)
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
Some results from an optical Some results from an optical monitoring of four quasars at monitoring of four quasars at Calar Alto Observatory Calar Alto Observatory (Almería, Spain)(Almería, Spain)
Aurora Ullán (UC)Aurora Ullán (UC)
Jan-Erik Ovaldsen (University of Oslo)Jan-Erik Ovaldsen (University of Oslo)
Luis Goicoechea (UC)Luis Goicoechea (UC)
Rolf Stabell (University of Oslo)Rolf Stabell (University of Oslo)
Collaboration:Collaboration:Department of Modern Department of Modern Physics of the University Physics of the University of Cantabria , Santander, of Cantabria , Santander, SpainSpain
&&
Institute of Theoretical Institute of Theoretical Astrophysics (University of Astrophysics (University of Oslo), Oslo, NorwayOslo), Oslo, Norway
CONTENTSCONTENTS
Introduction: optical monitoring and observationsIntroduction: optical monitoring and observations
Data analysis: UC & Univ. Data analysis: UC & Univ. OsloOslo
We tried to take at least three different frames for each We tried to take at least three different frames for each system and each night in order to obtain a “local” estimation system and each night in order to obtain a “local” estimation of the errorsof the errors
A typical exposure is 300s in V and 150 in R (in general A typical exposure is 300s in V and 150 in R (in general for all the targets)=> not very long in order to NOT saturate for all the targets)=> not very long in order to NOT saturate the reference starsthe reference stars
We used always R and V Johnson filtersWe used always R and V Johnson filters