Accueil > Publications > Catalogue POP > 2019

Catalogue POP – Notice individuelle de publication

Doressoundiram Alain, Maquet Lucie, Roques Françoise, Liu Chih-Yuan, Miosotys Team ..

An exploration of the trans-Neptunian region through stellar occultations and MIOSOTYS

In AAS/Division for Planetary Sciences Meeting Abstracts, October 1, 20162016, vol. 48

Référence ADS : 2016DPS....4812009D

Résumé :

As the Kuiper belt is located far from the sun, it is difficult to observe the small objects that are composing it. To understand how the Kuiper belt was formed , we need to study the size distribution of its objects. We have to be able to detect sub-kilometric objects . This is possible only by random stellar occultations. In order to perform those observations, we have an instrument called MIOSOTYS.MIOSOTYS (Multi-object Instrument for Occultations in the SOlar system and TransitorY Systems) is a fibre-based, high speed photometer which is designed mainly for serendipitously monitoring the occultation events caused by small Trans-Neptunian Objects (TNOs) located at the distance of 40 AU and beyond from the Sun, the so-called Kuiper Belt. Because of the small angular size of the star, the passing TNO through the line of sight of the star will produce a diffraction-dominated phenomena.This is a visitor instrument mounted on the 193 cm telescope at the Observatoire de Haute-Provence, France and on the 123 cm telescope at the Calar Alto Observatory, Spain. Our immediate goal is to characterize the spatial distribution and extension of the Kuiper Belt, and the physical size distribution of TNOs. We present the observation campaigns during 2010-2014, objectives and observing strategy. We report the detection of potential candidates for occultation events of TNOs. We will discuss more specifically the method used to process the data and the modelling of diffraction patterns. We, finally present the results obtained concerning the distribution of sub-kilometer TNOs in the Kuiper Belt.

Retour au catalogue