Transition to digital meteor spectra - a study in progress

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F23%3A00604903" target="_blank" >RIV/67985815:_____/23:00604903 - isvavai.cz</a>

Výsledek na webu

<a href="https://articles.adsabs.harvard.edu/pdf/2023pimo.conf...76S" target="_blank" >https://articles.adsabs.harvard.edu/pdf/2023pimo.conf...76S</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Transition to digital meteor spectra - a study in progress

Popis výsledku v původním jazyce

With the evolution of technology, digital sensors replaced photographic plates and films previously used in cameras for the acquisition of meteor spectra. During the transition phase, both recording methods were operative. Several fireball spectra captured from both analogue and digital cameras were used for comparison. Details of the complete analysis procedure are discussed, starting with obtaining the observed spectral information from the image, up to the synthetic fit of the spectrum used to determine the instrumental response of the observing system. The spectra of two meteors captured by the analogue camera and several digital cameras are compared using the newly-developed SynthFit software, to determine measurement errors and other discrepancies. From the results, it was found that the spectral sensitivity of the analogue cameras was wrongly determined at short wavelengths. Applying different scaling factors along the spectral range to account for it, the relative intensities of nearby lines are mostly in good agreement with spectra captured from different stations. Other differences in the analysed spectra of a fast meteor most likely arise from an unprecise continuum identification and better results can be expected after performing the physical fit.

Název v anglickém jazyce

Transition to digital meteor spectra - a study in progress

Popis výsledku anglicky

With the evolution of technology, digital sensors replaced photographic plates and films previously used in cameras for the acquisition of meteor spectra. During the transition phase, both recording methods were operative. Several fireball spectra captured from both analogue and digital cameras were used for comparison. Details of the complete analysis procedure are discussed, starting with obtaining the observed spectral information from the image, up to the synthetic fit of the spectrum used to determine the instrumental response of the observing system. The spectra of two meteors captured by the analogue camera and several digital cameras are compared using the newly-developed SynthFit software, to determine measurement errors and other discrepancies. From the results, it was found that the spectral sensitivity of the analogue cameras was wrongly determined at short wavelengths. Applying different scaling factors along the spectral range to account for it, the relative intensities of nearby lines are mostly in good agreement with spectra captured from different stations. Other differences in the analysed spectra of a fast meteor most likely arise from an unprecise continuum identification and better results can be expected after performing the physical fit.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the International Meteor Conference

ISBN

978-2-87355-035-6

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

70-73

Název nakladatele

International Meteor Organization

Místo vydání

Mechelen

Místo konání akce

Poroszlo

Datum konání akce

29. 9. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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