Add to ORKGWe discuss photometric errors that arise from the use of differing color-transformation schemes when extrapolating outside the range of the standard values that define the system. An example based on data from the Long-Term Photometry of Variables project (LTPV) at ESO is analyzed. Practically, the extrapolation errors are most evident as systematic brightness jumps of some program stars, seen when monitored over several observing runs. Conclusions are drawn about the choice of standard stars in the Stromgren system
Context. Synthetic photometry is a great tool for studying globular clusters, especially for underst...
. In recent years, several authors have revised the calibrations used to compute physical parameter...
Photometry is the measure of the brightness of an object. When making such measurements on stars, it...
A major cause of errors in photometry is to be attributed to the color transformation. A thorough an...
The extent to which the use of different photometers can affect results on stellar color indices was...
International audienceMeeting the science goals for many current and future ground-based optical lar...
International audienceThe technique of photometric redshifts has become essential for the exploitati...
The author has carried out a preliminary investigation of a method of observation and reduction whic...
This paper presents a comprehensive error analysis of photometric stereo with colour lights for surf...
Context. Understanding the source of systematic errors in photometry is essential for their calibrat...
By simulating uvby observations under various conditions, an analysis has been made of the precision...
In this paper we propose a spectroscopy-based stellar color regression (SCR) method to perform accur...
<p>The Tycho and Tycho-2 catalogs and the SuperWASP survey report photometry for millions of stars o...
Aims. Surface brightness asymmetries are a very common feature of stars. Among other effects they ca...
Obtaining color coordinates from an image is a complicated process, in which calibration and charact...
Context. Synthetic photometry is a great tool for studying globular clusters, especially for underst...
. In recent years, several authors have revised the calibrations used to compute physical parameter...
Photometry is the measure of the brightness of an object. When making such measurements on stars, it...
A major cause of errors in photometry is to be attributed to the color transformation. A thorough an...
The extent to which the use of different photometers can affect results on stellar color indices was...
International audienceMeeting the science goals for many current and future ground-based optical lar...
International audienceThe technique of photometric redshifts has become essential for the exploitati...
The author has carried out a preliminary investigation of a method of observation and reduction whic...
This paper presents a comprehensive error analysis of photometric stereo with colour lights for surf...
Context. Understanding the source of systematic errors in photometry is essential for their calibrat...
By simulating uvby observations under various conditions, an analysis has been made of the precision...
In this paper we propose a spectroscopy-based stellar color regression (SCR) method to perform accur...
<p>The Tycho and Tycho-2 catalogs and the SuperWASP survey report photometry for millions of stars o...
Aims. Surface brightness asymmetries are a very common feature of stars. Among other effects they ca...
Obtaining color coordinates from an image is a complicated process, in which calibration and charact...
Context. Synthetic photometry is a great tool for studying globular clusters, especially for underst...
. In recent years, several authors have revised the calibrations used to compute physical parameter...
Photometry is the measure of the brightness of an object. When making such measurements on stars, it...