Post eclipse thermal response of Uranian satellites with SINFONI: a status report .
- Others:
- INAF-Osservatorio Astronomico di Trieste (INAF-OATs)
- Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE) ; Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris ; Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)
- Observatoire de la Côte d'Azur ; COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)
- Steward Observatory, University of Arizona
- Lowell Observatory, Flagstaff
- INAF-Osservatorio di Arcetri, Italy
Description
We report on the status of a project to measure eclipse-induced changes in surface temperature on the major Uranian satellites. Such measurements enable a uniquely direct determination of the thermal inertia, a measure of the resistance to changes in surface temperature. Thermal inertia is a very sensitive indicator for the presence or absence of powdered materials and tenuous atmospheres. Two different telescopes and observation techniques are used: The post-eclipse temperature variation of the H_2O-ice component will be determined from analyzing observations of temperature-dependent H_2O absorption features in the near-IR (observations taken in 2007 with SINFONI at VLT). Variations of the disk-integrated thermal emission during and after eclipse events will be observed in the thermal infrared (Q band) using T-ReCS on Gemini South in July 2008.
Abstract
International audience
Additional details
- URL
- https://hal.archives-ouvertes.fr/hal-03742225
- URN
- urn:oai:HAL:hal-03742225v1
- Origin repository
- UNICA