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Browsing by Author "Castro Tirado, Alberto J."
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Large meteoroids on minor cometary streams : recent events detected by the Spanish fireball network
Moreno-Ventas Bravo, Ignacio
; Trigo Rodríguez, Josep María; Alonso Azcárate, Jacinto; Izquierdo Gómez, Jaime; Ocaña Gónzalez, Francisco; Castro Tirado, Alberto J.; Llorca, Jordi; Madiedo Gil, José María; Montanyà, J.; Velde, O. van der; Lacruz, J.; Pujols, P.; Cortés, J. (2010)
F. L. Whipple first modeled the forma-tion of meteoroid streams from the continuous subli-mation of the ice-rich regions in cometary nuclei [1,2,3]. Particles lifted off from ice-rich regions by the sublimated gas drag ... -
Linking a fireball to its likely parent near earth object by means of orbital analysis software tools
Alonso, C.; Madiedo Gil, José María; Trigo Rodríguez, Josep María; Ortiz Moreno, José Luis; Castro Tirado, Alberto J.; Pastor, S.; Reyes, J. A. de los (2013)
The identification of their progenitor bodies is crucial to increase our knowledge on the origin and evolution of meteoroid streams. Traditionally, the similarity between two orbits has been used to link a given meteoroid ... -
A meteorite-dropping superbolide from the catastrophycally disrupted comet C1919Q2 metcalf : a pathway for meteorites from jupiter family comets
Madiedo Gil, José María; Trigo Rodríguez, Josep María; Williams, I. P.; Castro Tirado, Alberto J.; Llorca, Jordi; Vítek, Stanislav; Jelinek, M. (2009)
It is widely accepted that cometary nu- clei are composed of a mix of volatile ices and meteor- itic materials. In a series of seminal papers F. L. Whipple tried to explain how the irregular internal structure of each ... -
Near earth object 2012XJ112 as a source of bright bolides of achondritic nature
Madiedo Gil, José María; Trigo Rodríguez, Josep María; Williams, I. P.; Konovalova, N.; Ortiz Moreno, José Luis; Castro Tirado, Alberto J.; Pastor, S.; Reyes, J. A. de los; Cabrera Caño, Jesús (Oxford University Press, 2014)
We analyze the likely link between the recently discovered Near Earth Object 2012XJ112 and a bright fireball observed over the south of Spain on December 27, 2012. The bolide, with an absolute magnitude of -9±1, was ... -
Observations of a very bright fireball and its likely link with comet C/1919 Q2 Metcalf
Trigo Rodríguez, Josep María; Madiedo Gil, José María; Williams, I. P.; Castro Tirado, Alberto J.; Llorca, Jordi; Vítek, Stanislav; Jelinek, M. (Oxford University Press, 2009)
A very bright fireball called B´ejar (SPMN110708), with a maximum brightness of −18, was observed over much of Spain as well as parts of Portugal and France on 2008 July 11 at 21:17:39 UTC. Fortuitously, it flew over ... -
On the chemical composition and orbit of a diurnal fireball
Toscano, F. M.; Madiedo Gil, José María; Ortiz Moreno, José Luis; Castro Tirado, Alberto J.; Trigo Rodríguez, Josep María; Pastor, S.; Reyes, J. A. de los (2012)
In general, meteor and fireball imaging systems operate during the night, as these mostly employ high-sensitivity recording devices that get fully saturated even under twilight conditions. Lowsensitivity video cameras ... -
On the development of robotic CCD video meteor observing station in Spain
Madiedo Gil, José María; Ortiz Moreno, José Luis; Castro Tirado, Alberto J.; Díaz Blanco, Manuel Jesús; Trigo Rodríguez, Josep María (2010)
Since 2006 the SPanish Meteor Network (SPMN) has set up several automated video stations in Spain for increasing the atmospheric cover-age of the already existing low-scan-rate all-sky CCD systems [1, 2]. However, in spite ... -
Orbit, emission spectrum, and photometric analysis of two flickering sporadic fireballs
Madiedo Gil, José María; Trigo Rodríguez, Josep María; Konovalova, N.; Ortiz Moreno, José Luis; Castro Tirado, Alberto J.; Alonso Azcárate, Jacinto; Lacruz, J.; Cabrera Caño, Jesús (EDP Sciences, 2013)
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 ... -
Orbital elements and emission spectrum of a Comae Berenicids fireball
Martínez, L.; Madiedo Gil, José María; Toscano, F. M.; Castro Tirado, Alberto J.; Trigo Rodríguez, Josep María; Pastor, S.; Reyes, J. A. de los (2012)
The Comae Berenicids (COM) is a minor meteor shower with an activity period that extends from Dec. 12 to January 23 and a maximum around the end of December. This shower was tentatively linked to comet 1913 I (Lowe), ... -
The outburst of the κ Cygnids in 2007: clues about the catastrophic break up of a comet to produce an Earth-crossing meteoroid stream
Trigo Rodríguez, Josep María; Madiedo Gil, José María; Williams, I. P.; Castro Tirado, Alberto J. (Oxford University Press, 2009)
Using high-resolution, low-scan-rate, all-sky CCD cameras and high-level CCD video cameras, the SPanish Meteor and fireball Network (SPMN) recorded the 2007 κ Cygnid fireball outburst from several observing stations. ... -
Physico-chemical properties of meteoroids from the alpha-capricornid stream
Toscano, F. M.; Madiedo Gil, José María; Trigo Rodríguez, Josep María; Ortiz Moreno, José Luis; Castro Tirado, Alberto J.; Cabrera Caño, Jesús (2013)
Several objects have been proposed as the parent body of the α-Capricornid meteoroid stream. Among these we can find the short period comets 141P/Machholz and 45P/Honda-Mrkos- Pajdusakova, but also asteroids such as ... -
A potential meteorite-dropping fireball recorded over Spain in 2011
Rodríguez Ramírez, Antonio; Madiedo Gil, José María; Lyytinen, E.; Ortiz Moreno, José Luis; Castro Tirado, Alberto J. (2013)
Although most meteoroids impacting our atmosphere ablate completely, some fireball events may produce, under favourable conditions, a non-zero terminal mass. In these cases these materials reach the ground as meteorites. ... -
Spanish meteor network : 2006 all-sky and video monitoring highlights
Trigo Rodríguez, Josep María; Madiedo Gil, José María; Castro Tirado, Alberto J.; Ortiz Moreno, José Luis; Gural, P. S.; Llorca, Jordi; Fabregat Llueca, Juan; Vítek, Stanislav; Pujols, P.; Troughton, Blanca (2007)
We previously reported [1] the first steps in the development of the SPanish Meteor Network (SPMN) by using innovative low-scan all-sky CCD cameras that are reaching +2/+3 meteor limiting magnitude [1]. During 2006 new ... -
Spectral analysis and orbit of the "Doñana" fireball, recorded on Jan, 25, 2012
Torre, C. de la; Madiedo Gil, José María; Trigo Rodríguez, Josep María; Castro Tirado, Alberto J. (2013)
The continuous monitoring of meteor and fireball activity provides helpful information about meteoroid streams, but also about the mechanisms that deliver these particles of interplanetary matter to the Earth [1, 2, ... -
Spectroscopy and orbital analysis of bright bolides observed over the Iberian Peninsula from 2010 to 2012
Madiedo Gil, José María; Trigo Rodríguez, Josep María; Ortiz Moreno, José Luis; Castro Tirado, Alberto J.; Pastor, S.; Reyes, J. A. de los; Cabrera Caño, Jesús (Oxford University Press, 2013)
We present the analysis of the atmospheric trajectory and orbital data of four bright bolides observed over Spain, one of which is a potential meteorite dropping event. Their absolute magnitude ranges from −10 to −11. ... -
A sporadic fireball produced by a meteoroid trapped in a jovian resonance
The analysis of meteor and fireball events simultaneously recorded from multiple observing stations allows getting valuable orbital information of large meteoroids striking our atmosphere. From these orbits we can try ... -
A superbolide recorded over Spain on July 13, 2012
Madiedo Gil, José María; Trigo Rodríguez, Josep María; Zamorano, J.; Sánchez de Miguel, A.; Ocaña Gónzalez, Francisco; Izquierdo Gómez, Jaime; Ortiz Moreno, José Luis; Castro Tirado, Alberto J.; Morales, Nicolás; Galadí, D.; Guindos, E. de; Lacruz, J.; Organero, F.; Hernández, L. A.; Fonseca, F.; Tapia, Mar; Cabrera Caño, Jesús (2013)
One of the aims of the SPanish Meteor Network (SPMN) is the recovery and analysis of meteorites. So, we focus special attention on very bright fireballs, as under appropriate conditions these unusual events may give ... -
The "Valencia de las Torres" superbolide of August 23, 2012
Rodríguez Vallejo, M. L.; Madiedo Gil, José María; Trigo Rodríguez, Josep María; Zamorano, J.; Izquierdo Gómez, Jaime; Castro Tirado, Alberto J.; Ortiz Moreno, José Luis; Ocaña Gónzalez, Francisco; Sánchez de Miguel, A. (2013)
On August 23, 2012, a superbolide was recorded by our fireball monitoring systems operating in the south and center of Spain. Its emission spectrum was also obtained in the framework of the continuous spectroscopic ...
