Results 21 to 30 of about 17,275 (278)

THE HALF-YEAR MONITORING OF METEOROID INFLUX TO THE NEAR-EARTH SPACE BY TV-OBSERVATIONS

Odessa Astronomical Publications, 2017
The Astronomical Institute of Russian Academy of Science provides TV-meteor observations since 2000. We began them with hybrid camera for Space Control Survey, but now we use 6 simple wide-angle Patrol Camera (PatrolCa) for every-night monitoring of ...
A. P. Kartashova, A. V. Bagrov, G. T. Bolgova, V. A. Leonov   +3 more
doaj   +1 more source

A Review of Infrasound and Seismic Observations of Sample Return Capsules since the End of the Apollo Era in Anticipation of the OSIRIS-REx Arrival

Atmosphere, 2023
Advancements in space exploration and sample return technology present a unique opportunity to leverage sample return capsules (SRCs) towards studying atmospheric entry of meteoroids and asteroids.
Elizabeth A. Silber, Daniel C. Bowman, Sarah Albert   +2 more
doaj   +1 more source

Altitudinal dependence of meteor radio afterglows measured via optical counterparts

Geophysical Research Letters, 2016
Utilizing the all‐sky imaging capabilities of the first station of the Long Wavelength Array along with a host of all‐sky optical cameras, we have now observed 44 optical meteor counterparts to radio afterglows.
K. S. Obenberger, J. M. Holmes, J. D. Dowell, F. K. Schinzel, K. Stovall, E. K. Sutton, G. B. Taylor   +6 more
doaj   +1 more source

Contribution of meteor flux in the occurrence of sporadic-E (Es) layers over the Arabian Peninsula [PDF]

Annales Geophysicae, 2021
A sporadic-E (Es) layer is generally associated with a thin-layered structure present in the lower ionosphere, mostly consisting of metallic ions. This metallic ion layer is formed when meteors burn in the upper atmosphere, resulting in the deposition of
M. M. Shaikh, G. Gopakumar, G. Gopakumar, A. A. Al-owais, M. E. Sharif, I. Fernini, I. Fernini, I. Fernini   +7 more
doaj   +1 more source

Nitric Oxide Production by Centimeter-Sized Meteoroids and the Role of Linear and Nonlinear Processes in the Shock Bound Flow Fields

Atmosphere, 2018
Nitric oxide (NO) is a critical indicator of energy deposition in the lower thermosphere because of its formational pathways. Thus, it is important to constrain sources of NO, such as meteoroid generated hypersonic flows below 95 km altitude.
Elizabeth A. Silber, Mihai L. Niculescu, Peter Butka, Reynold E. Silber   +3 more
doaj   +1 more source

Scientific goals of optical instruments of the National Heliogeophysical Complex

Solar-Terrestrial Physics, 2020
Studies of the upper atmosphere have to be performed using optical photometric and spectrometric means. Modern devices allow precise photometry of the glow of the night atmosphere — airglow — with high temporal spatial and spectral resolution.
Vasilyev R.V., Artamonov M.F., Beletsky A.B., Zorkaltseva O.S., Komarova E.S., Medvedeva I.V., Mikhalev A.V., Podlesny S.V., Ratovsky K.G., Syrenova T.E., Tashchilin M.A., Tkachev I.D.   +11 more
doaj   +1 more source

Retinal meteor

Indian Journal of Ophthalmology, 2017
We describe a case of a 65-year old man diagnosed with retinal vasoproliferative tumour secondary to posterior uveitis. The fluorescein angiography shows an interesting meteor-like leak emanating from the tumour and rising towards the superior retina in the later frames of the angiogram.
Ramesh Venkatesh, Prachi Gurav, Prachi Abhishek Dave, Sankhadeep Roy   +3 more
openaire   +3 more sources

THE CHALLENGES IN HYPERVELOCITY MICROPHYSICS RESEARCH ON METEOROID IMPACTS INTO THE ATMOSPHERE

Zbornik Radova: Geografski institut "Jovan Cvijić", 2020
Meteor science contributes greatly to the study of the Solar System and the Earth’s atmosphere. However, despite its importance and very long history, meteor science still has a lot to explore in the domain of meteor plasma microphysics and the meteor ...
Dejan Vinković, Maria Gritsevich
doaj   +3 more sources

Possible Transfer of Life by Earth-Grazing Objects to Exoplanetary Systems

Life, 2020
Recently, a 30-cm object was discovered to graze the Earth’s atmosphere and shift into a Jupiter-crossing orbit. We use the related survey parameters to calibrate the total number of such objects.
Amir Siraj, Abraham Loeb
doaj   +1 more source

PF191012 Myszyniec - highest Orionid meteor ever recorded [PDF]

, 2013
On the night of Oct 18/19, 2012 at 00:23 UT a -14.7 mag Orionid fireball occurred over northeastern Poland. The precise orbit and atmospheric trajectory of the event is presented, based on the data collected by five video and one photographic Polish ...
Fietkiewicz, K., Krasnowski, M., Krzyzanowski, T., Kwinta, M., Maciejewski, M., Myszkiewicz, M., Olech, A., Polakowski, K., Tyminski, Z., Wisniewski, M., Zareba, P., Zoladek, P.   +11 more
core   +1 more source