Article
Bright fireballs associated with the potentially hazardous asteroid 2007LQ19
Author/s | Madiedo Gil, José María
Cabrera Caño, Jesús María Trigo Rodríguez, Josep Maria Ortiz, José L. Castro Tirado, Alberto J. |
Department | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Publication Date | 2014 |
Deposit Date | 2017-09-28 |
Published in |
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Abstract | We analyse here two very bright fireballs produced by the ablation in the atmosphere of two large meteoroids in 2009 and 2010. These slow-moving and deep-penetrating events were observed over Spain in the framework of our ... We analyse here two very bright fireballs produced by the ablation in the atmosphere of two large meteoroids in 2009 and 2010. These slow-moving and deep-penetrating events were observed over Spain in the framework of our Spanish Fireball Network continuous meteor monitoring campaign. The analysis of the emission spectrum imaged for one of these fireballs has provided the first clues about the chemical nature of the progenitor meteoroids. The orbital parameters of these particles suggest a likely association with the recently identified July ρ-Herculid (JRH) meteoroid stream. In addition, considerations about the likely parent body of this stream are also made on the basis of orbital dissimilarity criteria. This orbital analysis reveals that both meteoroids and PHA 2007LQ19 exhibit a similar evolution during a time period of almost 8000 years, which suggests that either this near Earth object (NEO) is the potential parent of these particles or that this NEO and both meteoroids had a common progenitor in the past. |
Funding agencies | Ministerio de Ciencia e Innovación (MICIN). España Junta de Andalucía |
Project ID. | YA2011-26522
P09-FQM-4555 |
Citation | Madiedo, J.M., Cabrera Caño, J.M., Trigo Rodríguez, J.M., Ortiz, J.L. y Castro Tirado, A.J. (2014). Bright fireballs associated with the potentially hazardous asteroid 2007LQ19. Monthly Notices of the Royal Astronomical Society, 443 (2), 1643-1650. |
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