@article{10272/9341,
year = {2013},
url = {http://hdl.handle.net/10272/9341},
abstract = {We present the observations of two fireballs that exhibit fast and quasi-periodic brightness variations along their atmospheric path.
This phenomenon, which is known as “flickering”, is associated to the entry of spinning non-spherical meteoroids into the atmosphere.
Both bolides were imaged in the framework of the continuous fireball monitoring and meteor spectroscopy campaigns organized by
the SPanish Meteor Network (SPMN) in 2012. Their atmospheric trajectory, radiant, and orbit were calculated. The preatmospheric
mass and tensile strength of the parent meteoroids were also estimated, and the rotation of these bodies analyzed on the basis of the
photometric behavior of the bolides. Although small (less than 80 grams), a non-zero terminal mass was determined for both events.
The emission spectra produced during the ablation of the meteoroids in the atmosphere are also discussed.},
organization = {We acknowledge support from the Spanish Ministry of Science and Innovation (project AYA2011-26522) and Junta de Andalucia (project P09-FQM-4555). We also thank the AstroHita Foundation for its support in the establishment and operation of the automated meteor observing station located at La Hita Astronomical Observatory (La Puebla de Almoradiel, Toledo, Spain).},
publisher = {EDP Sciences},
title = {Orbit, emission spectrum, and photometric analysis of two flickering sporadic fireballs},
doi = {10.1051/0004-6361/201321751},
author = {Madiedo Gil, José María and Trigo Rodríguez, Josep María and Konovalova, N. and Ortiz Moreno, José Luis and Castro Tirado, Alberto J. and Alonso Azcárate, Jacinto and Lacruz, J. and Cabrera Caño, Jesús},
}