Zobrazeno 1 - 10
of 238
pro vyhledávání: '"Planetary ring"'
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 9 (2022)
We perform simulations of the M⊕ self-gravitating exoring thought to orbit the large exoplanet J1407b. We use a mass of MJ1407b=20MJ (which is close to the revised upper limit) and a semi-major axis of a=5AU, equating to an orbital period of ∼11y
Externí odkaz:
https://doaj.org/article/7c056a1bd9614dcfa931d1123ba68531
Autor:
Shi-Yu Wang, Chanannipat Meesap
Publikováno v:
Chinese Journal of Mechanical Engineering, Vol 31, Iss 1, Pp 1-13 (2018)
Abstract Time-variant excitations in planetary gear trains can cause excessive noise and vibration and even damage the system on a permanent basis. This paper focuses on the elastic vibrations of a helical planetary ring gear subjected to mesh and pl
Externí odkaz:
https://doaj.org/article/8e72b66bca1340e58433fea34558f448
Publikováno v:
Jixie chuandong, Vol 41, Pp 10-14 (2017)
Based on the traditional traction planetary ring cone friction continuously variable transmission,the planetary ring bevel gear power split type continuously variable transmission is firstly proposed,and the derivation with two methods of its overall
Externí odkaz:
https://doaj.org/article/6d390b0371a5440ab89b0b8cc497144a
Akademický článek
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Autor:
N. A. Tomov, U. Wolter, K. A. Stoyanov, Dragomir Marchev, M. F. Bode, V. D. Marchev, L. Iliev, R. K. Zamanov, Ivanka Stateva, Y. M. Nikolov
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 499:3650-3659
We present spectroscopic observations of the Be/X-ray binary X Per obtained during the period December 2017 - January 2020 (MJD~58095 - MJD~58865). In December 2017 the $H\alpha$, $H\beta$, and HeI 6678 emission lines were symmetric with violet-to-re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e66c54244e4a61c050d1c4c496f56963
https://doi.org/10.1093/mnras/staa3065
https://doi.org/10.1093/mnras/staa3065
Saturn Reveals Largest Known Planetary Ring: Telescope Detects Dust Band 200 Times Planet's Diameter
Autor:
Cowen, Ron
Publikováno v:
Science News, 2009 Nov 01. 176(10), 8-8.
Externí odkaz:
https://www.jstor.org/stable/40384407
Autor:
Larry W. Esposito
Saturn’s rings are not only a beautiful and enduring symbol of space, but astronomers’ best local laboratory for studying phenomena in thin cosmic disks like those where planets formed. All the giant planets have ring systems. Saturn’s are the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c8eebce01ea28ac6570b407497aafe6
https://doi.org/10.1093/acrefore/9780190647926.013.236
https://doi.org/10.1093/acrefore/9780190647926.013.236
Autor:
Cowen, Ron
Publikováno v:
Science News, 2008 Nov 01. 174(10), 9-9.
Externí odkaz:
https://www.jstor.org/stable/20465683
Autor:
Goldsbrough, G. R.
Publikováno v:
Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, 1922 Jun 01. 101(710), 280-289.
Externí odkaz:
https://www.jstor.org/stable/94072
Autor:
Goldsbrough, G. R.
Publikováno v:
Philosophical Transactions of the Royal Society of London. Series A, Containing Papers of a Mathematical or Physical Character, 1922 Jan 01. 222, 101-130.
Externí odkaz:
https://www.jstor.org/stable/91203