This paper shows the first observational result of a spectrum of a June Boötid meteor obtained by the High-Definition TV observational system. The very faint spectrum appeared at $15^{\rm h} 59^{\rm m} 29.693^{\rm s}$ on 2004 June 23 UT, which was about 5th magnitude. Wavelengths between 360-620 nm were observed, and the strong emissions of neutral atoms as MgI, FeI and NaI were identified. Emissions of single ionized atoms were not observed. The abundances of metallic atoms, their excitation temperature were obtained under the Local Thermal Equilibrium (LTE) conditions. The results, $\rm Fe/Mg = 0.15$ and $\rm Na/Mg = 0.00027$ suggest the possibility that the abundances of June Boötid meteor are extremely different from the solar s...
Context. Determining the source regions of meteorites is one of the major goals of current research ...
We have optically recorded faint meteors using a large aperture LLLTV (low light level television) s...
Aims. We investigate the spectra, material properties, and orbital distribution of millimeter- to de...
This paper shows the first result of a Geminid meteor spectrum in the visible–ultraviolet region. W...
Context.It has been thought that fast-moving meteor spectra consist of only two excitation temperat...
High-definition TV spectra in the ultraviolet–visible region were obtained during the 2002 Leonid a...
Aims. We present a library of low-resolution meteor spectra that includes sporadic meteors...
Meteoroids are often billions of years old and as they ablate and ionize in the atmosphere, they giv...
A spectrogram of a fast optical meteor was reduced and analyzed, and 60 features were identified in ...
Mössbauer (nuclear γ-resonance) spectroscopy is a powerful technique that is actively used in variou...
Meridiani Planum is the first iron meteorite found on Mars. It was discovered in 2005 by the Mars Ex...
Aims. The complex study of millimetre-sized meteoroids can reveal more about the structure and origi...
The characterisation of physical and chemical properties of meteoroids can be performed from the a...
Studies on meteor spectroscopy are reported. The following topics are discussed: photometric spectra...
The speed and mass dependence of meteor air plasma temperatures is perhaps the most im-portant data ...
Context. Determining the source regions of meteorites is one of the major goals of current research ...
We have optically recorded faint meteors using a large aperture LLLTV (low light level television) s...
Aims. We investigate the spectra, material properties, and orbital distribution of millimeter- to de...
This paper shows the first result of a Geminid meteor spectrum in the visible–ultraviolet region. W...
Context.It has been thought that fast-moving meteor spectra consist of only two excitation temperat...
High-definition TV spectra in the ultraviolet–visible region were obtained during the 2002 Leonid a...
Aims. We present a library of low-resolution meteor spectra that includes sporadic meteors...
Meteoroids are often billions of years old and as they ablate and ionize in the atmosphere, they giv...
A spectrogram of a fast optical meteor was reduced and analyzed, and 60 features were identified in ...
Mössbauer (nuclear γ-resonance) spectroscopy is a powerful technique that is actively used in variou...
Meridiani Planum is the first iron meteorite found on Mars. It was discovered in 2005 by the Mars Ex...
Aims. The complex study of millimetre-sized meteoroids can reveal more about the structure and origi...
The characterisation of physical and chemical properties of meteoroids can be performed from the a...
Studies on meteor spectroscopy are reported. The following topics are discussed: photometric spectra...
The speed and mass dependence of meteor air plasma temperatures is perhaps the most im-portant data ...
Context. Determining the source regions of meteorites is one of the major goals of current research ...
We have optically recorded faint meteors using a large aperture LLLTV (low light level television) s...
Aims. We investigate the spectra, material properties, and orbital distribution of millimeter- to de...