X-shooter
User Manual
Doc:
Issue
Date
Page
VLT-MAN-ESO-12000-0115
1
01.03.2009
5 of 60
ESO, Karl-Schwarzschild-Str. 2, 85748 Garching bei München, Germany
3.4
Instrument and telescope overheads.........................................................................30
3.4.1
Summary of telescope and instrument overheads .............................................30
3.4.2
Example of execution time computation .............................................................30
4.
Calibrating and reducing X-shooter data .........................................................................31
4.1
X-shooter calibration plan ..........................................................................................31
4.2
Wavelength and spatial scale calibration...................................................................32
4.3
Flat-field .....................................................................................................................33
4.4
Spectrophotometric calibration ..................................................................................33
4.4.1
Telluric absorption correction..............................................................................33
4.4.2
Absolute flux calibration......................................................................................34
4.5
The X-shooter pipeline...............................................................................................35
5.
Reference material ..........................................................................................................36
5.1
Templates reference..................................................................................................36
5.1.1
Orientation and conventions ...............................................................................36
5.1.2
Acquisition templates..........................................................................................37
Slit acquisition template ..............................................................................................37
IFU acquisition template .............................................................................................38
5.1.3
Science templates ..............................................................................................39
Slit observations .........................................................................................................39
5.1.3.1.1
Staring...................................................................................................39
5.1.3.1.2
Synchronized staring slit observations..................................................40
5.1.3.1.3
Nod-on-slit observations .......................................................................41
5.1.3.1.4
Fixed offset to sky .................................................................................42
5.1.3.1.5
Generic offsets......................................................................................43
IFU observations.........................................................................................................44
5.1.3.1.6
Staring...................................................................................................44
5.1.3.1.7
Synchronized IFU staring observations ................................................45
5.1.3.1.8
Fixed offset to sky .................................................................................46
5.1.3.1.9
Generic offsets......................................................................................47
5.1.4
Daytime Calibration templates............................................................................48
Slit and IFU arc lamp calibrations ...............................................................................48
Format check ..............................................................................................................49
Order definition ...........................................................................................................50
Arcs multi-pinhole .......................................................................................................51
Flatfield .......................................................................................................................52
Detector calibrations ...................................................................................................54
5.1.5
Night-time Calibration Templates .......................................................................55
Spectro-photometric Standard Stars ..........................................................................55
Telluric standards .......................................................................................................56
5.2
Slit masks ..................................................................................................................57
5.2.1
UVB ....................................................................................................................57
5.2.2
VIS ......................................................................................................................57
5.2.3
NIR......................................................................................................................58
5.3
Detector QE curves ...................................................................................................58
5.4
A&G camera filter curves...........................................................................................59
