HARPS Exposure Time Calculator
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Optical Echelle Spectroscopy Mode
Version 3.2.13
Description.
F.A.Q
Performance
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Input Flux Distribution
Blackbody
T:
Kelvin
Power Law
Index:
F(λ) is proportional to λ
(Index)
Template Spectra
O5V (Pickles)
O9V (Pickles)
B1V (Pickles)
B2IV (Pickles)
B3V (Pickles)
B8V (Pickles)
B9III (Pickles)
B9V (Pickles)
A0III (Pickles)
A0V (Pickles)
A2V (Pickles)
F0V (Pickles)
G0 (Pickles)
G2V (Pickles)
K2V (Pickles)
K7V (Pickles)
M2V (Pickles)
Planetary Nebula
HII Region (ORION)
Elliptical Galaxy
S0 Galaxy
Sa Galaxy
Sb Galaxy
Starburst Galaxy 1
Starburst Galaxy 2
Starburst Galaxy 3
Starburst Galaxy 4
Starburst Galaxy 5
Starburst Galaxy 6
QSO
Redshift Z:
Object Magnitude:
Band:
U
B
V
R
I
Magnitudes are given per square arcsec for extended sources. Note that some template spectra are defined over a limited wavelength range and may not allow calculations for all instrument configurations. The object magnitude is not taken into account for single line sources.
Single line
λ:
[380-690] nm
FWHM:
nm
Flux
10
-16
ergs/s/cm
2
Spatial Distribution:
Point Source
Sky Conditions
Moon:
0 days
3 days
7 days
10 days
14 days
from new moon
Airmass:
Seeing:
arcsec (range: [ 0.30 ; 3.00 ])
Instrument Setup
Polarimetry:
None
Linear
Circular
The S/N and flux estimates in polarimetric mode are computed for fiber A only taking into account the transmission of the polarimetric optics. Fiber B suffers an efficiency loss of ~30% with respect to fiber A solely due to the fiber transmission.
CCD mode:
1x1 (Fast Readout, Low Gain)
1x1 (Slow Readout, High Gain)
Exposure Time:
Results
Tables:
Spectral Format
Expected Counts
Graphs:
Efficiency
Obj
Sky
Imax
S/N
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