Results 11 to 20 of about 7,767,873 (255)
Planetary Trojans – the main source of short period comets? [PDF]
International Journal of Astrobiology, 2010 AbstractOne of the key considerations when assessing the potential habitability of telluric worlds will be that of the impact regime experienced by the planet. In this work, we present a short review of our understanding of the impact regime experienced by the terrestrial planets within our own Solar system, describing the three populations of ...
Horner, Jonathan, Lykawka, Patryk Sofia
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The decay of short period comets. [PDF]
, 2000 This thesis considers both the mass of dust released by short period comets and the size distribution of a decaying cometary population. The secular variation in the H 10 absolute magnitude of comets 2P /Encke, 4P /Paye, 6P /d'Arrest, 7P /Pons ...
Hughes, Mark Andrew
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The Dust Environment of Short Period Comets [PDF]
, 2013 In this work we present a characterization of the dust environment of various Short Period Comets, with the purpose to improve the knowledge on their physical properties. Among this comet family members, we focused over 30P/Reinmuth 1, 78P/Gehrels 2, 123P/West-Hartley and P/2011 W2 (Rinner).
Pozuelos Romero, Francisco José
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Small-body encounters using solar sail propulsion [PDF]
, 2004 Cometary Rendezvous and Flybys have large V requirements, which impose almost unattainable, and sometimes prohibitive, demands on the propellant budget of conventional, chemical propulsion.
Hughes, Gareth W., McInnes, Colin R.
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Studies of short-period comets on the eve of Rosetta [PDF]
, 2015 We present an extended study of the dust environment of a sample of short-period comets and their dynamical history. With this aim, we characterized the dust tails when the comets are active, and we make a statistical study to determine their dynamical evolution.
Pozuelos Romero, Francisco José
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Analysis of CN Coma Morphology Features of Comet 21P/Giacobini–Zinner
The Planetary Science Journal, 2023 We analyze jet features found in the coma of comet 21P/Giacobini–Zinner (21P/GZ) during its 2018 perihelion passage using narrowband CN photometric imaging in order to determine the comet’s rotational period, and we constrain the CN gas outflow velocity ...
Charles Goldberg +2 more
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Six Outbursts of Comet 46P/Wirtanen
The Planetary Science Journal, 2021 Cometary activity is a manifestation of sublimation-driven processes at the surface of nuclei. However, cometary outbursts may arise from other processes that are not necessarily driven by volatiles.
Michael S. P. Kelley +37 more
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Optical Imaging Polarimetry of Comet 21P/Giacobini–Zinner during Its 2018 Apparition
The Planetary Science Journal, 2023 We conducted polarimetric observations of comet 21P/Giacobini–Zinner in the optical wavelength region using the polarimetric imager PICO equipped with the 50 cm telescope for Public Outreach at the Mitaka Campus of the National Astronomical Observatory ...
Yoshiharu Shinnaka +4 more
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Dust Properties of Comets Observed by Spitzer
The Planetary Science Journal, 2023 As comets journey into the inner solar system, they deliver particulates and volatile gases into their comae that reveal the most primitive materials in the solar system.
David E. Harker +3 more
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Nature, 1890 IT is now generally accepted that the periodic comets of our system did not originate in it, but are bodies captured from outer space by one of the planets, the parabolic orbits in which they approached the system being transformed into elliptical ones.
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