Results 21 to 30 of about 16,812,166 (316)
The Compositional Diversity of Low-Mass Exoplanets [PDF]
Annual Review of Earth and Planetary Science, 2019 Low-mass planets have an extraordinarily diverse range of bulk compositions, from primarily rocky worlds to those with deep gaseous atmospheres. As techniques for measuring the masses of exoplanets advance the field toward the regime of rocky planets ...
D. Jontof-Hutter
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A noninteracting low-mass black hole–giant star binary system [PDF]
Science, 2018 A black hole hiding in a binary star As material falls toward a black hole, it heats up and emits x-rays. Almost all black holes are discovered by this x-ray emission. Thompson et al.
T. Thompson +16 more
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Low mass contact binaries: Orbital stability at extreme low mass ratios. [PDF]
Monthly notices of the Royal Astronomical SocietyWith the ever-increasing number of light curve solutions of contact binary systems, an increasing number of potential bright red nova progenitors are being reported. There remains, however, only one confirmed event. In the present study, we undertake a
S. Wadhwa +7 more
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Generator configuration for helicopter quadruplex electric tail rotor
The Journal of Engineering, 2019 With the move to more electric aircraft (MEA), a key area of investigation is the development of commercially viable systems which are reliable, efficient, low mass, and are compatible and commensurate with the power and multiplex requirements of current
Julian D. Booker +3 more
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Galactic Winds in Low-mass Galaxies [PDF]
Proceedings of the International Astronomical Union, 2018 Stellar-feedback-driven outflows are predicted to play a fundamental role in the baryon cycle of low-mass galaxies. However, observational constraints of winds in nearby dwarf galaxies are limited, as outflows are transient, intrinsically low surface ...
K. McQuinn, L. van Zee, E. Skillman
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Compositional Imprints in Density–Distance–Time: A Rocky Composition for Close-in Low-mass Exoplanets from the Location of the Valley of Evaporation [PDF]
, 2017 We use an end-to-end model of planet formation, thermodynamic evolution, and atmospheric escape to investigate how the statistical imprints of evaporation depend on the bulk composition of planetary cores (rocky versus icy).
Sheng Jin, C. Mordasini
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The ALFALFA H I mass function: a dichotomy in the low-mass slope and a locally suppressed `knee' mass [PDF]
, 2018 The authors acknowledge the work of the entire ALFALFA collaboration in observing, flagging, and extracting the catalogue of galaxies that this paper makes use of.
Michael G. Jones +3 more
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Materials & Design, 2019 A Gd,Y rare-earth containing magnesium alloy (content in weight %, 10 Gd, 3 Y, 0.4 Zr and Mg as balance) is PEO processed for three different metallurgical states: (i) as-extruded, (ii) T4 solution (2 h at 500 °C) and (iii) T6 peak-aged precipitation (2 ...
J. Martin +6 more
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Low-mass nitrogen-, oxygen-bearing, and aromatic compounds in Enceladean ice grains
Monthly notices of the Royal Astronomical Society, 2019 Saturn’s moon Enceladus is erupting a plume of gas and ice grains from its south pole. Linked directly to the moon’s subsurface global ocean, plume material travels through cracks in the icy crust and is ejected into space.
N. Khawaja +8 more
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On the Role of Dissolved Gases in the Atmosphere Retention of Low-mass Low-density Planets [PDF]
, 2018 Low-mass low-density planets discovered by Kepler in the super-Earth mass regime typically have large radii for their inferred masses, implying the presence of H2–He atmospheres. These planets are vulnerable to atmospheric mass loss due to heating by the
Yayaati Chachan, D. Stevenson
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