RT Journal Article
T1 Orbit, emission spectrum, and photometric analysis of two flickering sporadic fireballs
A1 Madiedo Gil, José María
A1 Trigo Rodríguez, Josep María
A1 Konovalova, N.
A1 Ortiz Moreno, José Luis
A1 Castro Tirado, Alberto J.
A1 Alonso Azcárate, Jacinto
A1 Lacruz, J.
A1 Cabrera Caño, Jesús
AB 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 bythe SPanish Meteor Network (SPMN) in 2012. Their atmospheric trajectory, radiant, and orbit were calculated. The preatmosphericmass and tensile strength of the parent meteoroids were also estimated, and the rotation of these bodies analyzed on the basis of thephotometric 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.
PB EDP Sciences
SN 0004-6361
SN 1432-0746 (electrónico)
YR 2013
FD 2013
LK http://hdl.handle.net/10272/9341
UL http://hdl.handle.net/10272/9341
LA eng
NO Madiedo Gil, José María ; Trigo Rodríguez, J.M., Konovalova, N., Ortiz Moreno, J.L., Castro Tirado, A.J., Alonso Azcárate, J., Lacruz, J., Cabrera Caño, J.: "Orbit, emission spectrum, and photometric analysis of two flickering sporadic fireballs". Astronomy and Astrophysics. Vol. 555, A149 (2013). ISSN 0004-6361
NO 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).
DS Repositorio Institucional de la Universidad de Huelva
RD 1 jun 2026