Results 71 to 80 of about 335 (184)
Meteoritics &Planetary Science, Volume 59, Issue 6, Page 1236-1257, June 2024.Abstract Cosmic dust particles originate from a wide variety of solar system and interstellar objects, including sources not identified among meteorite collections. Particles that survive atmospheric entry are retrieved on the Earth's surface as micrometeorites. The recovery of these micrometeorites has recently advanced to rooftop sites.
Guido Jonker +4 more
wiley +1 more source
Photometric observations of the binary nuclei of three Abell planetary nebulae
, 2004 Meeting on Asymmetrical Planetary Nebulae III -- JUL 28-AUG 01, 2003 -- Mt Rainier, WACCD photometric observations of the three Abell planetary nebulae (Abell 63, Abell 46 and Abell 41) nuclei are presented.
Afsar, M, Ibanoglu, C
core
I. Physical Studies of Distant Comets. II. Morphologies of Planetary Nebulae [PDF]
, 1983 Part 1: Broadband observations of comets P/Stephan-Oterma (1980g), Bowell (1980b) and Panther (1980u) in the visual (0.5 ≾ λ(µm) ≾ 0.9) and infrared (1.2 ≾ λ(µm) ≾ 20) wavelength regions are reported together with measurements in the 1.5 to 2.4 µm ...
Jewitt, David Clifford
core +1 more source
A Raman Spectroscopic Study of Lightning‐Induced Glass Produced From Five Mineral Phases
Earth and Space Science, Volume 11, Issue 5, May 2024.Abstract Lightning‐induced volcanic spherules (LIVS) are glasses produced by the rapid melting and solidification of molten volcanic ash grains. High temperatures generated by lightning will alter the physical and chemical properties of minerals exposed to the discharge.
T. W. Woods, K. Genareau, C. Park
wiley +1 more source
Spectroscopic survey of faint planetary-nebula nuclei. I. Six new "O VI" central stars
, 2023 We report initial results from an ongoing spectroscopic survey of central stars of faint planetary nebulae (PNe), obtained with the Low-Resolution Spectrograph on the Hobby-Eberly Telescope.
Bond, Howard E. +3 more
core +1 more source
Meteoritics &Planetary Science, Volume 59, Issue 5, Page 1101-1130, May 2024.Abstract The rapid recovery of the Winchcombe meteorite offers a valuable opportunity to study the soluble organic matter (SOM) profile in pristine carbonaceous astromaterials. Our interests in the biologically relevant molecules, amino acids—monomers of protein, and the most prevalent meteoritic organics—polycyclic aromatic hydrocarbons (PAHs) are ...
Queenie H. S. Chan +4 more
wiley +1 more source
, 1992 A brief summary of the research highlights is presented. The topics covered include the following: binary nuclei of planetary nebulae; other variable planetary nuclei; low-mass supergiants; and other IUE-related ...
Bond, Howard E.
core
Physical and Chemical Properties of Planetary Nebulae with WR-type Nuclei [PDF]
, 2014 We have carried out optical spectroscopic measurements of emission lines for a sample of Galactic planetary nebulae with Wolf-Rayet (WR) stars and weak emission-line stars (wels).
Wesson, R +3 more
core
The observed position of planetary nebulae nuclei on the luminosity - temperature diagram
, 2004 The position of the central stars of planetary nebulae on the T/L diagram provides an important test of the stellar evolution theory. In this paper, we present, at first, a brief review of the recent works presented on this subject.
B. Stenholm +3 more
core +1 more source
, 2020 Research into the processes of photoionised nebulae plays a significant part in our understanding of stellar evolution. It is extremely difficult to visually represent or model ionised nebula, requiring astronomers to employ sophisticated modelling code ...
Redman, Matthew +3 more
core +1 more source