Photometric analysis of the pi of the sky data
A database containing star measurements from the period 2006-2009 taken by the Pi of the Sky detector located in Las Campanas Observatory in Chile contains more than 2 billion measurements of almost 17 million objects. All measurements are available on the Pi of the Sky web site through a dedicated...
| Main Authors: | , , , , , |
|---|---|
| Format: | Journal Article |
| Published: |
Ceske Vysoke Uceni Technicke
2011
|
| Online Access: | http://hdl.handle.net/20.500.11937/55660 |
| _version_ | 1848759676745809920 |
|---|---|
| author | Siudek, M. Malek, K. Mankiewicz, L. Opiela, R. Sokolowski, Marcin Zarnecki, A. |
| author_facet | Siudek, M. Malek, K. Mankiewicz, L. Opiela, R. Sokolowski, Marcin Zarnecki, A. |
| author_sort | Siudek, M. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | A database containing star measurements from the period 2006-2009 taken by the Pi of the Sky detector located in Las Campanas Observatory in Chile contains more than 2 billion measurements of almost 17 million objects. All measurements are available on the Pi of the Sky web site through a dedicated interface, which also allows users to download selected data. Accurate analysis of Pi of the Sky data is a real challenge, because of a number of factors that can influence the measurements. Possible sources of errors in our measurements include: reading the chip with the shutter open, strong and varying sky background, passing planets or planetoids, and clouds and hot pixels. In order to facilitate the analysis of variable stars we have developed a system of dedicated filters to remove bad measurements or frames. The spectral sensitivity of the detector is taken into account by appropriate corrections based on the spectral type of reference stars. This process is illustrated by an analysis of the BG Ind system, where we have been able to reduce the systematic uncertainty to about 0.05 magnitudo. |
| first_indexed | 2025-11-14T10:03:40Z |
| format | Journal Article |
| id | curtin-20.500.11937-55660 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:03:40Z |
| publishDate | 2011 |
| publisher | Ceske Vysoke Uceni Technicke |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-556602017-08-24T02:19:52Z Photometric analysis of the pi of the sky data Siudek, M. Malek, K. Mankiewicz, L. Opiela, R. Sokolowski, Marcin Zarnecki, A. A database containing star measurements from the period 2006-2009 taken by the Pi of the Sky detector located in Las Campanas Observatory in Chile contains more than 2 billion measurements of almost 17 million objects. All measurements are available on the Pi of the Sky web site through a dedicated interface, which also allows users to download selected data. Accurate analysis of Pi of the Sky data is a real challenge, because of a number of factors that can influence the measurements. Possible sources of errors in our measurements include: reading the chip with the shutter open, strong and varying sky background, passing planets or planetoids, and clouds and hot pixels. In order to facilitate the analysis of variable stars we have developed a system of dedicated filters to remove bad measurements or frames. The spectral sensitivity of the detector is taken into account by appropriate corrections based on the spectral type of reference stars. This process is illustrated by an analysis of the BG Ind system, where we have been able to reduce the systematic uncertainty to about 0.05 magnitudo. 2011 Journal Article http://hdl.handle.net/20.500.11937/55660 Ceske Vysoke Uceni Technicke restricted |
| spellingShingle | Siudek, M. Malek, K. Mankiewicz, L. Opiela, R. Sokolowski, Marcin Zarnecki, A. Photometric analysis of the pi of the sky data |
| title | Photometric analysis of the pi of the sky data |
| title_full | Photometric analysis of the pi of the sky data |
| title_fullStr | Photometric analysis of the pi of the sky data |
| title_full_unstemmed | Photometric analysis of the pi of the sky data |
| title_short | Photometric analysis of the pi of the sky data |
| title_sort | photometric analysis of the pi of the sky data |
| url | http://hdl.handle.net/20.500.11937/55660 |