It has a diameter of 50 538 km, a mass of 17.2 Earth-masses, and a density of 1.76 times that of water. Neptune has 13 known satellites; Triton and Nereid were detected from Earth and the rest were discovered as a result of the Voyager 2 flyby in Aug. 1989, during which Neptune'...
C.Terrestrial planets have smaller masses than Jovian planets. D.Terrestrial planets travel in a different direction than Jovian planets do. 2.The word markedly in the passage (paragraph 4) is closest in meaning to A.Essentially B.Typically C.Consistently D.Noticeably 3.Paragraph 4 mentions ...
The former are rocky bodies with masses of the order of the lunar to Martian mass, which form in the hottest region of the disk, where water is not in solid form. The protoplanetary cores, which form beyond thedoi:10.1007/978-3-642-27833-4_1902-7Alessandro Morbidelli...
From sub-mm/mm surveys of young stars (1–10 Myr old) with ALMA, the dust masses inferred from the dust continuum emission of their disks shows a declining trend with the central object mass (Fig. 3). The scaling laws between dust mass and stellar/substellar mass inferred in different n...
For decades, Western fans have typically opted to render the Japanese pronunciation of the planet's name as "Seibertron" (pronounced "Say-ber-tron") in order to distinguish it from the Japanese name of the Autobots, the "Cybertrons" (pronounced "Sigh-ber-tron"). However, several Japanese ...
We present a global magnetohydrodynamics (MHD) simulation of a turbulent accretion disc interacting with a giant protoplanet of 5 Jupiter masses in a fixed... RP Nelson,JCB Papaloizou - 《Monthly Notices of the Royal Astronomical Society》 被引量: 37发表: 2018年 Planetesimals in the Presence ...
More than 100 extra-solar planets have been discovered to date that are in the mass range of about 1/10 to 10 Jupiter masses, or, assuming the same density, roughly one half to two times the size of the latter. Of course, interest is directed towards Earth-like planets in other solar...
together have more than 100 times the combined masses of the terrestrial planets. The Uranian planets, Uranus and Neptune, are far denser than solar material and present strong but ambiguous evidence regarding large-scale fractionation processes in the outer regions of the solar nebula. Comets, whi...
five disk masses, seven disk radii, and two different typical pre-main-sequence host stars (T Tauri, Herbig Ae) at a distance of 140 pc. We calculate up to 141 individual velocity-channel maps for five molecules/isotopoloques (12C16O,12C18O, HCO+, HCN, and CS) in a total of 32 ...
theOuter Core, made of a liquid metal; theMantle, a semi-solid layer of rock which flows very slowly; and lastly the Crust, a solid layer of rock. On many planets, the Crust is divided into segments, slowly dragged around by the Mantle, slowly changing the landmasses of the planet its...