FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2768793471> ?p ?o ?g. }

• W2768793471 abstract "We introduce observational evidence obtained using the co-axial 430 MHz and 46.8 MHz radars at Arecibo Observatory for meteoroid flare processes that produce radar detectable scattering 1–2 kilometers delayed from the point of the flare on the meteoroid trajectory through the atmosphere. While several such events have been observed, we concentrate on one particularly interesting event. For this ∼90 km event, the head-echo at both frequencies is indicative of multiple fragments and of flaring based on the approach described by Mathews et al. [1]. The UHF radar meteor head-echo yields evidence of two major fragments but did not show the meteoroid flare while only the much less sensitive but wider-beam VHF radar revealed the unusual “delayed-echo” feature as well as complex fragmentation and the progenitor flare. For this event the flare and the resultant delayed-echo feature were well defined in the Range-Time-Intensity results and together point to an apparent propagation speed of the process giving rise to the delayed-echo of 50–100 km/sec. This is far too fast for shock waves thus pointing to intense plasma waves generated in the presumably “explosive” termination of a meteoroid fragment that produced the intense, well-defined radar flare-echo. We assume that the plasma “waves” generated by the explosive flare propagate in the trail-plasma “waveguide” and produce strong, highly non-thermal perturbations in the distribution of the trail-plasma thus engendering the observed strong VHF radar scattering at 1–2 km delay from the flare. We note convincing recent reports [2 and references therein] of transient HF/VHF radio emissions seen from the LWA1 (Long Wavelength Array prototype) and identified as originating from along the trajectory of optical bolides observed by a network of meteor cameras. Obenberger et al. [2] attribute these emissions to mode conversion to RF of Langmuir waves in the large gradients of the trail plasma. We agree with this assessment and, based on our delayed-echo results, further suggest that the meteoroid flaring generates these waves and also that the waves are contained within the trail-plasma waveguide thus limiting dissipation. We have not seen evidence of RF emission in our observations." @default.
• W2768793471 created "2017-12-04" @default.
• W2768793471 creator A5081904325 @default.
• W2768793471 creator A5086529952 @default.
• W2768793471 date "2017-08-01" @default.
• W2768793471 modified "2023-09-23" @default.
• W2768793471 title "Meteoroid flaring as a possible source of intense Langmuir waves" @default.
• W2768793471 cites W1735306317 @default.
• W2768793471 cites W2013312126 @default.
• W2768793471 cites W2023145118 @default.
• W2768793471 cites W2165931789 @default.
• W2768793471 cites W2430043742 @default.
• W2768793471 cites W2558843456 @default.
• W2768793471 cites W2771041701 @default.
• W2768793471 doi "https://doi.org/10.23919/ursigass.2017.8105190" @default.
• W2768793471 hasPublicationYear "2017" @default.
• W2768793471 type Work @default.
• W2768793471 sameAs 2768793471 @default.
• W2768793471 citedByCount "0" @default.
• W2768793471 crossrefType "proceedings-article" @default.
• W2768793471 hasAuthorship W2768793471A5081904325 @default.
• W2768793471 hasAuthorship W2768793471A5086529952 @default.
• W2768793471 hasConcept C10393806 @default.
• W2768793471 hasConcept C120665830 @default.
• W2768793471 hasConcept C121332964 @default.
• W2768793471 hasConcept C127313418 @default.
• W2768793471 hasConcept C1276947 @default.
• W2768793471 hasConcept C185001636 @default.
• W2768793471 hasConcept C191486275 @default.
• W2768793471 hasConcept C2779588948 @default.
• W2768793471 hasConcept C41008148 @default.
• W2768793471 hasConcept C554190296 @default.
• W2768793471 hasConcept C76155785 @default.
• W2768793471 hasConceptScore W2768793471C10393806 @default.
• W2768793471 hasConceptScore W2768793471C120665830 @default.
• W2768793471 hasConceptScore W2768793471C121332964 @default.
• W2768793471 hasConceptScore W2768793471C127313418 @default.
• W2768793471 hasConceptScore W2768793471C1276947 @default.
• W2768793471 hasConceptScore W2768793471C185001636 @default.
• W2768793471 hasConceptScore W2768793471C191486275 @default.
• W2768793471 hasConceptScore W2768793471C2779588948 @default.
• W2768793471 hasConceptScore W2768793471C41008148 @default.
• W2768793471 hasConceptScore W2768793471C554190296 @default.
• W2768793471 hasConceptScore W2768793471C76155785 @default.
• W2768793471 hasLocation W27687934711 @default.
• W2768793471 hasOpenAccess W2768793471 @default.
• W2768793471 hasPrimaryLocation W27687934711 @default.
• W2768793471 hasRelatedWork W1966255074 @default.
• W2768793471 hasRelatedWork W1993664025 @default.
• W2768793471 hasRelatedWork W2005717819 @default.
• W2768793471 hasRelatedWork W2022040493 @default.
• W2768793471 hasRelatedWork W2022170759 @default.
• W2768793471 hasRelatedWork W2059613271 @default.
• W2768793471 hasRelatedWork W2062002564 @default.
• W2768793471 hasRelatedWork W2066265130 @default.
• W2768793471 hasRelatedWork W2087521332 @default.
• W2768793471 hasRelatedWork W2109116947 @default.
• W2768793471 hasRelatedWork W2126671670 @default.
• W2768793471 hasRelatedWork W2506577675 @default.
• W2768793471 hasRelatedWork W3086199111 @default.
• W2768793471 hasRelatedWork W3102852135 @default.
• W2768793471 hasRelatedWork W3104805514 @default.
• W2768793471 hasRelatedWork W3121395677 @default.
• W2768793471 hasRelatedWork W3122145111 @default.
• W2768793471 hasRelatedWork W332876213 @default.
• W2768793471 hasRelatedWork W2072404963 @default.
• W2768793471 hasRelatedWork W2607686832 @default.
• W2768793471 isParatext "false" @default.
• W2768793471 isRetracted "false" @default.
• W2768793471 magId "2768793471" @default.
• W2768793471 workType "article" @default.