Results 81 to 90 of about 24,968,366 (387)
Time-resolved X-ray spectra of Proxima Centauri as seen by XMM-Newton
Astronomy & AstrophysicsContext. Stellar soft X-ray ([1, 100] Å) and extreme ultraviolet (also EUV, [100, 920] Å; jointly, XUV) radiation affect the evolution and chemistry of exoplanet atmospheres. It is, however, uncertain to what extent the radiation’s short-term variability
Damonte A. +4 more
doaj +1 more source
Addressing Economic Insecurities Can Improve Patient‐Reported Outcomes in Lupus
Arthritis Care &Research, Accepted Article.Background Economic insecurities, such as food, housing, transportation, and financial challenges, are modifiable risk factors and influence patient‐reported outcomes (PROs) in systemic lupus erythematosus (SLE). We examined: 1) associations between economic insecurities and PROs; 2) the impact of screening and addressing economic insecurities during ...
Jay Patel +8 more
wiley +1 more source
Interferometric view into RT Pav’s long secondary period
Astronomy & AstrophysicsContext. Long secondary periods (LSPs) occur in roughly one third of evolved stars, yet their origin remains uncertain. Two leading hypotheses are oscillatory convective modes and a binary companion enshrouded in dust. Aims. We investigate the LSP in the
Courtney-Barrer B. +8 more
doaj +1 more source
Design of a user-friendly control system for planetary rovers with CPS feature [PDF]
, 2021 Sebastiano Chiodini +5 more
openalex +1 more source
PEBBLE ACCRETION AND THE DIVERSITY OF PLANETARY SYSTEMS [PDF]
, 2016 This paper examines the standard model of planet formation, including pebble accretion, using numerical simulations. Planetary embryos that are large enough to become giant planets do not form beyond the ice line within a typical disk lifetime unless icy
J. Chambers
semanticscholar +1 more source
On the 3D secular dynamics of radial-velocity-detected planetary systems [PDF]
, 2019 Aims. To date, more than 600 multi-planetary systems have been discovered. Due to the limitations of the detection methods, our knowledge of the systems is usually far from complete.
Libert, Anne-Sophie +2 more
core +2 more sources
Advanced Engineering Materials, EarlyView.This article demonstrates the successful qualification of a copper–tungsten composite for laser powder bed fusion. The resulting components exhibited high density, high thermal conductivity, and reduced thermal expansion. Heat sinks with complex geometries were successfully manufactured, clearly showcasing the material's potential for additive ...
Simon Rauh +6 more
wiley +1 more source
Perturbation of Compact Planetary Systems by Distant Giant Planets [PDF]
, 2016 We examine the effect of secular perturbations by giant planets on systems of multiple, lower mass planets orbiting Sun-like stars. We simulate the effects of forcing both eccentricity and inclination, separately and together.
B. Hansen
semanticscholar +1 more source
Advanced Engineering Materials, EarlyView.The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan +4 more
wiley +1 more source
How a close-in planet protects its white dwarf host from pollution
Astronomy & AstrophysicsContext. Approximately 25-50% of the white dwarfs (WDs) exhibit metal absorption lines in their photospheres. The lines are attributed to accretion from their remnant planetary systems. Although WDs with detected planetary systems are more likely to show
Zhang Xin-Yue +3 more
doaj +1 more source