Size: 2161
Comment:
|
Size: 2460
Comment:
|
Deletions are marked like this. | Additions are marked like this. |
Line 12: | Line 12: |
== MAMBO == | == Fluxes of the secondary calibrators == |
Line 14: | Line 14: |
The old pool database provides MAMBO fluxes for a list of [[https://pool.iram.es/bolocalsources.php | secondary bolometer calibrators ]]. | The [[https://pool.iram.es/ | IRAM DataBase for Pooled Observations]] provides MAMBO fluxes for a list of secondary bolometer calibrators (ask Israel Hermelo for the login information). To access the list of calibrators go to Astro -> Calib Sources. |
Line 16: | Line 16: |
See also the [[attachment:Secondary calibrators for continuum measurements]] report by Lisenfeld et al. (2000). | See also the secondary calibrators for continuum measurements [[attachment:lisenfeld-2000-secondary-calibs-for-mambo.pdf | report ]] by Lisenfeld et al. (2000). |
Line 25: | Line 25: |
they can be used as secondary calibrators for the IRAM 30m continuum cameras. | they can be used as reliable calibrators for the IRAM 30m continuum cameras (see the [[attachment:AstPrimeCal_poster.pdf | poster]] courtesy of Thomas Mueller). |
Line 27: | Line 27: |
Thomas Mueller provided model predictions for these four asteroids until 2020: | Thomas Mueller provided flux predictions at different wavelengths for these four asteroids until 2020: |
Line 31: | Line 31: |
The poster [[attachment:Asteroids]] (also courtesy of Thomas Mueller) contains useful information about these asteroids. | The following figure summarizes the flux predictions at 1.3 mm for the period 2014-2015: {{attachment:Flux1300mu.png}} |
Line 66: | Line 68: |
Last update: 2014.01.15 | Last update: 2014.01.25 |
Secondary Calibrators
The primary calibrators used at the IRAM 30m telescope are Mars, Uranus and Neptune. Here we propose some secondary calibratots to observe when none of this planets is visible.
Fluxes of the secondary calibrators
The IRAM DataBase for Pooled Observations provides MAMBO fluxes for a list of secondary bolometer calibrators (ask Israel Hermelo for the login information). To access the list of calibrators go to Astro -> Calib Sources.
See also the secondary calibrators for continuum measurements report by Lisenfeld et al. (2000).
Asteroids
Some asteroids have quite excentric orbits, and their temperatures thus vary quite a bit. In addition, the smaller ones have non-circular shapes and thus also rotational variability on scales of few hours. However, the four largest asteroids (Ceres, Pallas, Vesta, and Lutetia) present a flux accuracy better than 5% and therefore, they can be used as reliable calibrators for the IRAM 30m continuum cameras (see the poster courtesy of Thomas Mueller).
Thomas Mueller provided flux predictions at different wavelengths for these four asteroids until 2020:
The following figure summarizes the flux predictions at 1.3 mm for the period 2014-2015:
Ceres
SOURCE Body Ceres 2456551.202069534158 80.32764144660911 72.29215117844517 10.59398142371781 2.557090856996202 .07579725984872261
Pallas
SOURCE Body Pallas 2456634.320680106518 173.1023717671647 309.9337060321055 34.83625656930519 2.130435195136733 .2315650120848084
Vesta
SOURCE Body Vesta 2456923.695134388993 103.8514828145328 151.1995756082146 7.140518203879475 2.152395790927782 .08850244223456388
Lutetia
SOURCE Body Lutetia 2457274.428494472523 80.88533411704726 250.2363739926752 3.06386567315565 2.034005484901541 .1644593151184061
Author: Israel Hermelo (IRAM 30m continuum pool manager)
email: hermelo@iram.es
Created: 2014.01.14
Last update: 2014.01.25