Results 51 to 60 of about 89,600 (153)

Not So Fast: A New Catalog of Meteor Persistent Trains

open access: yesJournal of Geophysical Research: Space Physics, Volume 129, Issue 7, July 2024.
Abstract This paper presents the results of a nearly 2‐year long campaign to detect and analyze meteor persistent trains (PTs)—self‐emitting phenomena which can linger up to an hour after their parent meteor. The modern understanding of PTs has been primarily developed from the Leonid storms at the turn of the century; our goal was to assess the ...
L. E. Cordonnier   +4 more
wiley   +1 more source

Comets in Australian Aboriginal Astronomy

open access: yes, 2010
We present 25 accounts of comets from 40 Australian Aboriginal communities, citing both supernatural perceptions of comets and historical accounts of bright comets.
Hamacher, Duane W., Norris, Ray P.
core   +1 more source

Witnessing a Poincar\'e recurrence with Mathematica

open access: yes, 2017
The often elusive Poincar\'e recurrence can be witnessed in a completely separable system. For such systems, the problem of recurrence reduces to the classic mathematical problem of simultaneous Diophantine approximation of multiple numbers.
Liu, Y., Zhang, J. M.
core   +2 more sources

Complete positive ion, electron, and ram negative ion measurements near Comet Halley (COPERNIC) plasma experiment for the European Giotto Mission [PDF]

open access: yes
Participation of U.S. scientists on the COPERNIC (COmplete Positive ions, Electrons and Ram Negative Ion measurements near Comet Halley) plasma experiment on the Giotto mission is described.
Lin, Robert P.
core   +1 more source

Frozen to death? -- Detection of comet Hale-Bopp at 30.7 AU

open access: yes, 2011
Comet Hale--Bopp (C/1995 O1) has been the single most significant comet encountered by modern astronomy, still having displayed significant activity at 25.7 AU solar distance in late 2007.
A’Hearn   +29 more
core   +1 more source

Identification and characterization of a new ensemble of cometary organic molecules. [PDF]

open access: yesNat Commun, 2022
Hänni N   +6 more
europepmc   +1 more source

ICE Second Halley radial: TDA mission support and DSN operations [PDF]

open access: yes
The article documents the operations encompassing the International Cometary Explorer (ICE) second Halley radial experiment centered around March 28, 1986. The support was provided by the Deep Space Network (DSN) 64-meter subnetwork.
Efron, L.   +2 more
core   +1 more source

The Lambert Function Should Be in the Engineering Mathematical Toolbox. [PDF]

open access: yesComput Chem Eng, 2021
Kesisoglou I, Singh G, Nikolaou M.
europepmc   +1 more source

Global environmental effects of impact-generated aerosols: Results from a general circulation model [PDF]

open access: yes
Cooling and darkening at Earth's surface are expected to result from the interception of sunlight by the high altitude worldwide dust cloud generated by impact of a large asteroid or comet, according to the one-dimensional radioactive-convective ...
Covey, C.   +2 more
core   +1 more source

Pitaya as a New Alternative Crop for Iberian Peninsula: Biology and Edaphoclimatic Requirements. [PDF]

open access: yesPlants (Basel), 2023
Trindade AR   +5 more
europepmc   +1 more source

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