Publication: Orbits and emission spectra from the 2014 Camelopardalids
Loading...
Official URL
Full text at PDC
Publication Date
2014-12-11
Authors
Advisors (or tutors)
Editors
Journal Title
Journal ISSN
Volume Title
Publisher
Wiley
Citations
Exportar
Abstract
We have analysed the meteor activity associated with meteoroids of fresh dust trails of Comet 209P/LINEAR, which produced an outburst of the Camelopardalid meteor shower (IAU code #451, CAM) in 2014 May. With this aim, we have employed an array of high-sensitivity CCD video devices and spectrographs deployed at 10 meteor observing stations in Spain in the framework of the Spanish Meteor Network. Additional meteoroid flux data were obtained by means of two forward-scatter radio systems. The observed peak zenithal hourly rate was much lower than expected, of around 20 meteors h(-1). Despite of the small meteor flux in the optical range, we have obtained precise atmospheric trajectory, radiant and orbital information for 11 meteor and fireball events associated with this stream. The ablation behaviour and low tensile strength calculated for these particles reveal that Camelopardalid meteoroids are very fragile, mostly pristine aggregates with strength similar to that of the Orionids and the Leonids. The mineral grains seem to be glued together by a volatile phase. We also present and discuss two unique emission spectra produced by two Camelopardalid bright meteors. These suggest a non-chondritic nature for these particles, which exhibit Fe depletion in their composition.
Description
This article has been accepted for publication in Monthly notices of the Royal Astronomical Society. © 2014 The Autors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. Meteor stations deployed at Sevilla, La Hita, Huelva, El Arenosillo, Sierra Nevada and La Pedriza have been funded by the first author. We acknowledge partial support from the Spanish Ministry of Science and Innovation (projects AYA2011-26522, AYA2012-31277 and AYA2012-30717). We thank the AstroHita Foundation for its continuous support in the operation of the meteor observing station located at La Hita Astronomical Observatory.
UCM subjects
Unesco subjects
Keywords
Citation
Borovička J., Koten P., Spurny P., Boček J., Stork R., 2005, Icarus, 174, 15
Brown P., 2014, Cent. Bur. Electron. Telegrams, 3886, 1
Brownlee D. E., 2001, in Peucker-Ehrenbrink B., Schmitz B., eds, Accretion of Extraterrestrial Matter Throughout Earth’s History. Kluwer, New York, p. 1
Brownlee D. E., 2006, Science, 5806, 1711
Ceplecha Z., 1987, Bull. Astron. Inst. Cz., 38, 222
Jenniskens P., 2006, Meteor Showers and their Parent Comets. Cambridge Univ. Press, Cambridge
Jenniskens P., Lyytinen E., 2014, Cent. Bur. Electron. Telegrams, 3869, 1
Jenniskens P., 2014, WGN, J. Inter. Meteor Organ., 42, 98
Jessberger E. K. 2001, in Grün E., Gustafson B. A. S., Dermott S., Fechtig H. et al., eds, Interplanetary Dust. Springer-Verlag, Berlin, p. 253
Lindblad B. A., 1971a, Smiths. Contr. Astrophys., 12, 1
Lindblad B. A., 1971b, Smiths. Contr. Astrophys., 12, 14
Madiedo J. M., Trigo Rodríguez J. M., 2008, Earth Moon Planets, 102, 133
Madiedo J. M., Trigo Rodríguez J. M., Ortiz J. L., Morales N., 2010, Adv. Astron., 2010, 1
Madiedo J. M., Trigo Rodríguez J. M., Lyytinen E., 2011, Data Reduction and Control Software for Meteor Observing Stations Based on CCD Video Systems. NASA/CP-2011-216469, 330
Madiedo J. M., Trigo Rodríguez J. M., Lyytinen E., Dergham J., Pujols P., Ortiz J. L., Cabrera J., 2013a, MNRAS, 431, 1678
Madiedo J. M., Trigo Rodríguez J. M., Konovalova N., Williams I. P., Castro Tirado A. J., Ortiz J. L., Cabrera J., 2013b, MNRAS, 433, 571
Madiedo J. M., 2014, Earth Planets Space, 66, 70
Madiedo J. M., Trigo Rodríguez J. M., Ortiz J. L., Castro Tirado A. J., Cabrera Caño J., 2014, Icarus, 239, 273
Maslov M., 2013, available at: http://feraj.narod.ru/Radiants/Predictions/209pids2014eng.html10.1093/mnras/stu1990.html
Moore C. E., 1945, Contribution No. 20, A Multiplet Table of Astrophysical Interest. Princeton Univ. Press, Princeton, NJ
Rao J., 2013, Sky Telesc., 5, 30
Southworth R. B., Hawkins G. S., 1963, Smithson Contr. Astrophys., 7, 261
Trigo Rodríguez J. M., Llorca J., 2006, MNRAS, 372, 655
Trigo Rodríguez J. M., Llorca J., 2007, MNRAS, 375, 415
Trigo Rodríguez J. M. et al., 2013, MNRAS, 433, 560
US Standard Atmosphere, 1976, NOA-NASA-USAF, Washington, DC
Wooden D., Desch S., Harker D., Gail H.-P., Keller L., 2007, in Reipurt B., et al., eds, Protostars and Planets V. Univ. Arizona Press, Tucson, p. 815
Vaubaillon J., 2012, available at: http://www.imcce.fr/langues/en/ephemerides/phenomenes/meteor/DATABASE/209_LINEAR/2014/index.php10.1093/mnras/stu1990.html
Williams I. P., 2011, A&G, 52, 2.20
Ye Q., Wiegert P., 2014, MNRAS, 437, 3283