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== NIKA2 Bandpasses == <<TableOfContents(5)>>
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=== Information for Observers === == Information for Observers on NIKA2 Bandpasses ==
=== Bandpasses of the NIKA2 Arrays ===
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NIKA2 bandpasses of the 3 arrays are described in Section 2.5 and Figure 1 of [[https://ui.adsabs.harvard.edu/abs/2020A%26A...637A..71P/abstract|Perotto et al. (2020)]]. For convenience, we provide here a fits file [[attachment:Transmission_2017_Jan_NIKA2_v1.fits]] (priv. com. Juan-Macias Perez 12-Jun-2020). The 2mm bandpass is valid since September 2016 (Run N2R5). The following figure shows a resulting plot: For convenience, we provide one ASCII file with the three NIKA2 bandpasses and three atmospheric transmission curves for 2mm, 4mm, and 7mm of precipitable water vapour: [[attachment:nika2-bandpasses-atm.dat]]. The instrumental bandpasses have already been corrected for the Rayleigh-Jeans source emission. They are shown in the figure below and also in Figure 1 of [[https://ui.adsabs.harvard.edu/abs/2020A%26A...637A..71P/abstract|Perotto et al. (2020)]]. These bandpasses were measured in the laboratory in Grenoble.
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{{attachment:nika2_bands.png}} === Atmospheric transmission curves ===
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The ATM model of J.Pardo & P.Cernicharo was used to calculate the atmospheric transmission at Pico Veleta. See also the figure below.
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=== Bandpasses of 2015 === === Figures ===

{{attachment:nika2-bandpasses3.png||height=550}}
{{attachment:atmos-transmission9.png||height=550}}

=== Old information ===

Back to the NIKA2 main page

Information for Observers on NIKA2 Bandpasses

Bandpasses of the NIKA2 Arrays

For convenience, we provide one ASCII file with the three NIKA2 bandpasses and three atmospheric transmission curves for 2mm, 4mm, and 7mm of precipitable water vapour: nika2-bandpasses-atm.dat. The instrumental bandpasses have already been corrected for the Rayleigh-Jeans source emission. They are shown in the figure below and also in Figure 1 of Perotto et al. (2020). These bandpasses were measured in the laboratory in Grenoble.

Atmospheric transmission curves

The ATM model of J.Pardo & P.Cernicharo was used to calculate the atmospheric transmission at Pico Veleta. See also the figure below.

Figures

nika2-bandpasses3.png atmos-transmission9.png

Old information

The spectral bands as measured in Néel (note that the two 1.15mm arrays are pretty similar but there is a detectable difference):

xavier_v1.jpg

xavier_v2.jpg

Spectral bands (last edited 2020-06-15 12:16:37 by CarstenKramer)