Mario Sucerquia

Hi, My name is Mario. I'm a young astrophysicist involved in planetary sciences. I have recently finished my PhD studies at Universidad de Antioquia - Colombia. Currently, I'm interested in the formation, evolution, behaviour and detectability of exomoons and exorings, which nowadays are a couple of missing pieces of the exoplanetary puzzle. 

Contact info: mario.sucerquia@udea.edu.co

Google Scholar: Mario Sucerquia

ORCID code: 0000-0002-8065-4199

MY LATEST RESEARCH


Authors:
Zuluaga, Jorge I.Sucerquia, Mario

Monthly Notices of the Royal Astronomical Society, Volume 477, Issue 2, p.1970-1983.

Publication date: 06/2018 

Abstract:

Tunguska and Chelyabinsk impact events occurred inside a geographical area of only 3.4 per cent of the Earth's surface. Although two events hardly constitute a statistically significant demonstration of a geographical pattern of impacts, their spatial coincidence is at least tantalizing. To understand if this concurrence reflects an underlying geographical and/or temporal pattern, we must aim at predicting the spatio-temporal distribution of meteoroid impacts on Earth. For this purpose we designed, implemented, and tested a novel numerical technique, the `Gravitational Ray Tracing' (GRT) designed to compute the relative impact probability (RIP) on the surface of any planet. GRT is inspired by the so-called ray-casting techniques used to render realistic images of complex 3D scenes. In this paper we describe the method and the results of testing it at the time of large impact events. Our findings suggest a non-trivial pattern of impact probabilities at any given time on the Earth. Locations at 60-90° from the apex are more prone to impacts, especially at midnight. Counterintuitively, sites close to apex direction have the lowest RIP, while in the antapex RIP are slightly larger than average. We present here preliminary maps of RIP at the time of Tunguska and Chelyabinsk events and found no evidence of a spatial or temporal pattern, suggesting that their coincidence was fortuitous. We apply the GRT method to compute theoretical RIP at the location and time of 394 large fireballs. Although the predicted spatio-temporal impact distribution matches marginally the observed events, we successfully predict their impact speed distribution.

The Science & 

Mathematics University

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