Quantitative meteor spectroscopy: Elemental abundances

Jenniskens, Peter

doi:10.1016/j.asr.2007.03.040

Cited by 41 publications

(34 citation statements)

References 26 publications

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“…This value is about one order of magnitude lower than that corresponding to the average tensile strength determined for sporadic meteoroids and one order of magnitude higher than the strength exhibited by meteoroids belonging to the October Draconid stream (Trigo-Rodríguez & Llorca 2006, 2007. In any event, the value is consistent with the cometary nature of the impactor.…”

Section: Discussionsupporting

confidence: 56%

“…meteor, which gives rise in turn to a sudden increase in luminosity. (Trigo-Rodriguez & Llorca 2006, 2007. According to this approach, the tensile strength S was obtained by means of the following equation (Bronshten 1981):…”

Section: Tensile Strengthmentioning

confidence: 99%

“…But emission bands of different molecules (such as CN, N 2 , C 2 , FeO, and CaO), have also been observed (Borovička 1994;Jenniskens 2004). Spectroscopy clearly also plays a fundamental role in the analysis of these events, since fireball emission spectra can provide very useful data about the physicochemical conditions in meteor plasmas and about the composition of the progenitor meteoroids (see, e.g., Borovička 1993;2005;Babadzhanov & Kokhirova 2007;Jenniskens 2007). In addition, these compositions can be employed to infer key information about the parent bodies of these particles (Koten et al 2006;Madiedo et al 2013aMadiedo et al , 2014.…”

Section: Introductionmentioning

confidence: 99%

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Trajectory, orbit, and spectroscopic analysis of a bright fireball observed over Spain on April 13, 2013

Madiedo¹,

Trigo-Rodríguez²,

Zamorano³

et al. 2014

A&A

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On April 13, 2013 a very bright fireball with an absolute magnitude of −13.0 ± 0.5 was recorded over the center of Spain. This sporadic event, which was witnessed by numerous casual observers throughout the whole country, was imaged from seven meteorobserving stations operated by the Spanish Meteor Network (SPMN), and its emission spectrum was also obtained in the framework of our meteor spectroscopy campaign. The atmospheric trajectory of the bolide and the heliocentric orbit of the parent meteoroid are analyzed here. The spectrum reveals a chondritic nature for this particle, which was following a Jupiter family comet orbit before its encounter with the Earth. In addition, the emission spectrum of the meteoric afterglow was recorded during about 0.8 s. The main emission lines appearing in this signal were identified and their evolution with time is also discussed. Afterglow spectra are not abundant in the literature, and these can provide important clues about the physical proceses taking place in meteoric persistent trains.

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Section: Discussionsupporting

confidence: 56%

Section: Tensile Strengthmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Trajectory, orbit, and spectroscopic analysis of a bright fireball observed over Spain on April 13, 2013

Madiedo¹,

Trigo-Rodríguez²,

Zamorano³

et al. 2014

A&A

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“…The instrument was first developed for meteor spectroscopy during the 1998 Leonid Multi-Instrument Aircraft Campaign [2][3][4][5]. The camera itself has only a narrow 5 5 field of view, but the objective grating collects light along a 5 wideband on the sky (Fig.…”

Section: Instrumentmentioning

confidence: 99%

“…In this paper, observations are analyzed that were made with a fixed-mounted staring slitless spectrograph, called ASTRO, designed to obtain spectra at the highest possible spectral resolution, albeit over a small wavelength range and over a brief period of time [2]. The high spectral resolution was achieved in part by recording the overlapping second-and third-order spectra, while most other spectrographic cameras recorded only the first-order spectrum.…”

Section: Introductionmentioning

confidence: 99%

Resolved CN Band Profile of Stardust Capsule Radiation at Peak Heating

Jenniskens

Wilson

Winter

et al. 2010

Journal of Spacecraft and Rockets

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During the 2006 Stardust Sample Return Capsule entry observing campaign, the highest spectral resolution data gathered onboard NASA's DC-8 Airborne Laboratory was measured with a fixed-mounted slitless cooled chargecoupled-device spectrograph, called ASTRO. Spectra were recorded around the time of peak heating 09 : 57 : 33 Coordinated Universal Time (UTC) on 15 January. The data covered three 0.8-second time intervals centered on 09:57:32.5, 34.4 and 36.3 s (0:5 s) UTC, when the capsule was at an altitude of 60 and 210 km from the spectrometer. The observed spectrum was a composite of first-, second-, and third-order emissions. The first-order spectrum contained only continuum emission. Second-order emissions included the 615 nm atomic line of oxygen; third-order emissions included the CN violet 0-0 band, the isoelectric N 2 band, and two Ca atomic lines. The Ca lines had an instrumental full-width at half-maximum of 0:15 0:01 nm. The CN violet band contour measured vibrational and rotational excitation temperatures of T v T r 8; 000 1; 000 K, if self-absorption is neglected.

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Natural Variations in Comet-Aggregate Meteoroid Compositions

Rietmeijer

Advances in Meteoroid and Meteor Science

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Quantitative meteor spectroscopy: Elemental abundances

Cited by 41 publications

References 26 publications

Trajectory, orbit, and spectroscopic analysis of a bright fireball observed over Spain on April 13, 2013

Trajectory, orbit, and spectroscopic analysis of a bright fireball observed over Spain on April 13, 2013

Resolved CN Band Profile of Stardust Capsule Radiation at Peak Heating

Natural Variations in Comet-Aggregate Meteoroid Compositions

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