Results 21 to 30 of about 227,798 (298)
Formation and composition of planets around very low mass stars
, 2016 The recent detection of planets around very low mass stars raises the question of the formation, composition and potential habitability of these objects.
Alibert, Yann, Benz, Willy
core +1 more source
The fragility of planetary systems [PDF]
, 2015 We specify the range to which perturbations penetrate a planetesimal system. Such perturbations can originate from massive planets or from encounters with other stars.
Jilkova, Lucie, Zwart, Simon Portegies
core +3 more sources
Stellar Outbursts and Chondrite Composition
The Astrophysical Journal, 2023 The temperatures of observed protoplanetary disks are not sufficiently high to produce the accretion rate needed to form stars, nor are they sufficient to explain the volatile depletion patterns in CM, CO, and CV chondrites and terrestrial planets.
Min Li +5 more
doaj +1 more source
On the Dynamics of Comets in Extrasolar Planetary Systems
, 2019 Since very recently, we acquired knowledge on the existence of comets in extrasolar planetary systems. The formation of comets together with planets around host stars now seems evident.
Beust +33 more
core +1 more source
Searching for Binary Stars in Planetary Nebulae Using the ISIS Image Subtraction Software [PDF]
, 2011 We explored the theory that binary central stars of planetary nebulae may be contributing factor in the formation of planetary nebulae. We searched for this photometric variability in central stars of planetary nebulae because consistent periodic ...
Schwartz, Samantha
core +2 more sources
60Fe-60Ni chronology of core formation in Mars
, 2014 The timescales of accretion, core formation, and magmatic differentiation in planetary bodies can be constrained using extinct radionuclide systems. Experiments have shown that Ni becomes more siderophile with decreasing pressure, which is reflected in ...
Dauphas, Nicolas, Tang, Haolan
core +1 more source
Addressing Economic Insecurities Can Improve Patient‐Reported Outcomes in Lupus
Arthritis Care &Research, EarlyView.Objective 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 the following: (1) associations between economic insecurities and PROs, and (2) the impact of screening and addressing economic ...
Jay Patel +8 more
wiley +1 more source
Implications of Differentiated Late Accretion for the Volatile Inventory of the Bulk Silicate Earth
The Planetary Science JournalEarth is believed to have acquired its highly siderophile element (HSE) inventory through the late accretion of ∼0.3%–0.5% of its mass in chondrite-like materials, following the main stage of its growth. Late accretion, particularly if it originated from
Damanveer S. Grewal, Varun Manilal
doaj +1 more source
Early Stages of Galilean Moon Formation in a Water-depleted Environment
The Astrophysical Journal Letters, 2023 A key feature of the Galilean satellite system is its monotonic decrease in bulk density with growing distance from Jupiter, indicating an ice mass fraction that is zero in the innermost moon Io and about half in the outer moons Ganymede and Callisto ...
Olivier Mousis +5 more
doaj +1 more source
Theoretical models of planetary system formation: mass vs semi-major axis [PDF]
, 2013 Planet formation models have been developed during the last years in order to try to reproduce the observations of both the solar system, and the extrasolar planets. Some of these models have partially succeeded, focussing however on massive planets, and
Alibert, Y. +6 more
core +5 more sources