Thursday 30 de November
SALÓN DORADO (120)
10:20 - 11:00
COFFEE BREAK
11:00 - 11:45
A: Fundamental Astronomy
Fundamental Astronomy
Chair: Andrea Sosa
#412 |
Secular and resonant effects of Planet 9 in the trans-Neptunian region.
Emilio Viera
1
;
Tabaré Gallardo
2
1 - Facultad de ciencias/CFE/CES.
2 - Facultad de ciencias.
Abstract:
The hypothesis of the existence of a planet with a high eccentricity, not yet discovered, beyond the orbit of Neptune
(called Planet 9), was developed to explain a series of anomalous dynamic behaviors in objects transneptunians
(TNOs), such as the existence of objects grouped in their perihelion longitude, the distance of their perihelions from
the Neptune region, or the existence of objects with a high inclination. In this work, using semi-analytic models, we
study the secular and resonant effects of the hypothetical Planet 9. It is presented under what conditions and due to
which of the two dynamics studied one would expect to find TNOs with high inclination and with accumulation of
the perihelion longitude in certain directions. The characteristics of the resonances generated by planet 9, the zones
where they interact with Neptune’s resonances, and the generation of chaotic zones are presented. Finally, the results
of secular evolution within the resonances generated by Planet 9 are presented.
#133 |
Star membership in three nearby open clusters
Jeison Alfonso
1
;
Alejandro García Varela
1
1 - Universidad de los Andes.
Abstract:
Galactic open clusters are ideal labs to explore and test stellar and dynamical astrophysical models in order to gain a broad outlook on the properties of the Milky Way. Now, the high quality astrometric and photometric information from the Gaia Data Release 3 catalogue allows us to further search for new stellar members in the clusters, which can be used to update their kinematic and stellar properties. The amount of Gaia data requires machine learning algorithms to be handled to retrieve patterns and characteristics. Our goal is to carry out a star membership study in three nearby open clusters: Pleiades, Praesepe and Blanco 1, employing an astrometric model with proper motions and an unsupervised clustering machine learning algorithm using positions, proper motions and parallaxes. The star members are selected from the cross-matching between both methods. We obtained catalogues of star members, and updated kinematic and stellar parameters for these open clusters.
#324 |
The benefits of extending the FRIPON-Chile network to surrounding countries
Sébastien Bouquillon
1
;
Felipe Gutierrez
2
;
Rene Mendez
2
;
Hernan Pulgar
2
;
Marcelo Tala Pinto
3
;
Katherine Vieira
4
;
Millarca Valenzuela Picón
5
;
Andrés Jordán
6
;
Christian H.R. Nitschelm
7
;
Massinissa Hadjara
8
;
Maja Vuckovic
9
;
Hebe Cremades
10
;
Bin Yang
11
;
Adrien Malgoyre
12
;
Francois Colas
13
;
Pierre Vernazza
12
;
Pierre Bourget
14
;
Emmanuel Jehin
15
;
Alain Klotz
16
1 - Observatoire de Paris y LFCA.
2 - Universidad de Chile.
3 - Universidad Adolfo Ibáñez y Millennium Institute for Astrophysics.
4 - Universidad de Atacama.
5 - Universidad Católica del Norte y Instituto Milenio de Astrofísica.
6 - Universidad Adolfo Ibáñez y Millennium Institute for Astrophysics y Data Observatory Foundation.
7 - Universidad de Antofagasta.
8 - CASSACA.
9 - Universidad de Valparaíso.
10 - University of Mendoza.
11 - Universidad Diego Portales.
12 - Aix-Marseille University.
13 - Observatoire de Paris.
14 - European Southern Observatory.
15 - Université de Liège.
16 - Université de Toulouse.
Abstract:
FRIPON (https://www.fripon.org) is an acronym for Fireball Recovery and Inter-Planetary Observation Network. It is an efficient ground-based network of more than a hundred all-sky cameras mainly installed in France and dedicated to the observation of fireballs to characterize the extra-terrestrial matter falling on Earth, and determining the impact area for facilitating the recovery of freshly fallen meteorites.
This network started in France in 2016 and has been extended first to Europe and Canada and more recently to Chile (https://www.fcla.cl/fripon-chile) for filling in the gap in the detection of these events in the southern skies and thereby obtaining an exhaustive view of fireball activity.
In this talk, we will first introduce the FRIPON network with a special focus on its recent extension in Chile as well as a short report of the first detections we obtained from the southern hemisphere. Then we will emphasize the necessity of extending the network to the surrounding countries of Chile for increasing the probability of meteorite recovery after meteor detection by the network.
11:45 - 12:30
C: Education, Outreach and Heritage
Heritage and Astronomy Networks
Chair: Andrea Sosa
#114 |
COSPAR Capacity Building in Latin America: past, present and future
Carlos Gabriel
1
1 - Committee on Space Research (COSPAR).
Abstract:
COSPAR's global capacity building programme started precisely in Latin America, in Brazil, with a workshop on X-ray astronomy in 2001. Aimed particularly at developing countries through the organisation of highly practical workshops, it was extended worldwide and to all space science disciplines. More than 40 workshops have meanwhile been organised in 22 countries, including 12 in 7 Latin American countries, which have benefited from the strengthening of scientific activities in hitherto largely unexplored fields. This presentation will discuss the characteristics of the workshops, the results achieved so far, as well as plans for the immediate future, including the establishment of a new type of capacity building based on the development of collaborative programmes in the area of small satellites.
#583 |
First Andean Network of entreperneurs in Astrotourism
Giovanni Pinzon
1
;
NICOLAS VASQUEZ
2
;
BEATRIZ GARCIA
3
1 - UNIVERSIDAD NACIONAL DE COLOMBIA.
2 - ESCUELA POLITECNICA NACIONAL.
3 - ITeDAM (CNEA-CONICET-UNSAM).
Abstract:
Most of the astrotourism activities along the Andean Region are currently being conducted by small entreperneurships based on big cities as well as in rural regions with very little or null support from universities and professional astronomers. With the aim to promote a platform for dialogues between entreperneurs and experts in astrotourism, the Regional Office of Astronomy for Development (IAU) in collaboration with the Escuela Politecnica Nacional (Ecuador) constitutes the first andean network of entreperneurs in astrotourism during the III Workshop Astronomia en los Andes : “Engaged communities in development through Astrotourism”. In this contribution we describe the structure of this andean network of entreperneurs and possible channels for supporting them in short and medium term.
#291 |
Bridges between cultures: the Astronomy as universal language
Rosa Ros
1
;
Beatriz Garcia
2
;
Ederlinda Vinuales
3
;
Ricardo Moreno
4
1 - Universidar Politecnica de Catalunia.
2 - Universidad Tecnológica Nacional Mendoza.
3 - Universidad de Zaragoza.
4 - Colegio Retamar.
Abstract:
Throughout history, Astronomy marked the lives of human beings in diverse ways. The approach to the starry sky was important from the ritual and daily ceremonial point of view and occupied a good part of the activity of all people on Earth. Although we have fragments of knowledge of the peoples of the past, we know that astronomy allowed us to establish patterns that became part of universal culture: compass, clock, calendar, intangible heritage of humanity, according to the UNESCO declaration of 2007. Bridges between cultures, is the annual proposal of the Astronomy Education Network in the School (NASE) associated with the UNESCO call for May 16th, the International Day of Light. This activity aims, hand in hand with universal astronomical themes, ancestral knowledge, discoveries of the modern era and great challenges of science dedicated to the study of the “light” that arrives from the Cosmos, to reestablish the links that identify us as a species. In this presentation we will show the topics addressed in recent years, the indicators that allow evaluating the impact of the activities proposals and the testimonies of participants who constitute diverse audiences that come, many times for the first time, to the discipline that, without a doubt, constitutes that universal language that It even allows us to write our stories in and thanks to the stars.
12:30 - 14:30
LUNCH
16:00 - 16:45
COFFEE BREAK
