We compare in Figure 1 the brightness temperature spectrum
(from 70 GHz to 400 GHz) as found in the Legacy implementation in ASTRO (black
lines) with the 2024 values (blue lines) and the
CASA models (red lines). Figures 2–5 show the
same thing, zooming on the 4 IRAM bands.
The time used for Mars computation (the only model for which time variations are taken into account) is 01-Jan-2010.
Figure 1:
Comparison of brightness temperature spectra of planets as
present in the ASTRO Legacy version (black lines) with the 2024
models (blue lines) and CASA models (red lines). The colored areas represent the IRAM bands 1–4.
![\includegraphics[width=14cm]{TbPlanet-ZOOM.eps}](img16.svg) |
Figure 2:
Same as Fig. 1 but zoom on the IRAM B1 (70–120 GHz); Comparison of brightness temperature spectra of planets as
present in the ASTRO Legacy version (black lines) with the 2024
models (blue lines) and CASA models (red lines).
![\includegraphics[width=14cm]{TbPlanet-B1.eps}](img17.svg) |
Figure 3:
Same as Fig. 1 but zoom on the IRAM B2 (120–180 GHz); Comparison of brightness temperature spectra of planets as
present in the ASTRO Legacy version (black lines) with the 2024
models (blue lines) and CASA models (red lines)
![\includegraphics[width=14cm]{TbPlanet-B2.eps}](img18.svg) |
Figure 4:
Same as Fig. 1 but zoom on the IRAM B3 (200–280 GHz); Comparison of brightness temperature spectra of planets as
present in the ASTRO Legacy version (black lines) with the 2024
models (blue lines) and CASA models (red lines)
![\includegraphics[width=14cm]{TbPlanet-B3.eps}](img19.svg) |
Figure 5:
Same as Fig. 1 but zoom on the IRAM B4 (280–360 GHz); Comparison of brightness temperature spectra of planets as
present in the ASTRO Legacy version (black lines) with the 2024
models (blue lines) and CASA models (red lines)
![\includegraphics[width=14cm]{TbPlanet-B4.eps}](img20.svg) |
Subsections