Results 121 to 130 of about 2,834 (210)

WIde Separation Planets In Time (WISPIT): A Gap-clearing Planet in a Multi-ringed Disk around the Young Solar-type Star WISPIT 2

The Astrophysical Journal Letters
In the past decades, several thousand exoplanet systems have been discovered around evolved, main-sequence stars, revealing a wide diversity in their architectures.
Richelle F. van Capelleveen, Christian Ginski, Matthew A. Kenworthy, Jake Byrne, Chloe Lawlor, Dan McLachlan, Eric E. Mamajek, Tomas Stolker, Myriam Benisty, Alexander J. Bohn, Laird M. Close, Carsten Dominik, Sebastiaan Haffert, Rico Landman, Jie Ma, Ignas Snellen, Ryo Tazaki, Nienke van der Marel, Lukas Welzel, Yapeng Zhang   +19 more
doaj   +1 more source

Water in the terrestrial planet-forming zone of the PDS 70 disk. [PDF]

Nature, 2023
Perotti G, Christiaens V, Henning T, Tabone B, Waters LBFM, Kamp I, Olofsson G, Grant SL, Gasman D, Bouwman J, Samland M, Franceschi R, van Dishoeck EF, Schwarz K, Güdel M, Lagage PO, Ray TP, Vandenbussche B, Abergel A, Absil O, Arabhavi AM, Argyriou I, Barrado D, Boccaletti A, Caratti O Garatti A, Geers V, Glauser AM, Justannont K, Lahuis F, Mueller M, Nehmé C, Pantin E, Scheithauer S, Waelkens C, Guadarrama R, Jang H, Kanwar J, Morales-Calderón M, Pawellek N, Rodgers-Lee D, Schreiber J, Colina L, Greve TR, Östlin G, Wright G.   +44 more
europepmc   +1 more source

How was the Earth-Moon system formed? New insights from the geodynamo. [PDF]

Proc Natl Acad Sci U S A, 2022
Cattaneo F, Hughes DW.
europepmc   +1 more source

Cold Dark Matter Cosmology Conflicts with Fluid Mechanics and Observations

Journal of Applied Fluid Mechanics, 2008
Cold dark matter (CDM) cosmology based on the Jeans 1902 criterion for gravitational instability gives predictions about the early universe contrary to fluid mechanics and observations. Jeans neglected viscosity, diffusivity, and turbulence: factors that
Carl H. Gibson
doaj  

Elevated Eccentricities in the Radius Valley Hint at Water-rich Mini-Neptunes

The Astrophysical Journal
While recent planet-formation models broadly reproduce the observed population of super-Earths and mini-Neptunes, as well as the bimodal radius distribution (the “radius valley”), it remains unclear whether all these planets share a common rocky ...
Sho Shibata, Andre Izidoro
doaj   +1 more source

On the implementation of novel RKARMS(4,4) algorithm to study the structures of initial extrasolar giant protoplanets. [PDF]

Heliyon, 2020
Chandra Paul G, Senthilkumar S, Rahman H.   +2 more
europepmc   +1 more source

Collision probabilities in the presence of nebular gas drag [PDF]

We are developing a model to determine what fraction of the planetesimals would have hit a protoplanet on their sunward journey as opposed to having a close approach and passing into an inferior orbit.
Kary, David M., Lissauer, Jack J.
core   +1 more source

Rapid protoplanet formation in the outer Solar System recorded in a dunite from the carbonaceous chondrite reservoir

Communications Earth & Environment
Constraining the timing of accretion, differentiation, and breakup of early-formed protoplanets helps to unravel the Solar System’s evolution. The recent discovery of the oldest crustal material, Erg Chech 002, has provided important constraints on the ...
B. G. Rider-Stokes, X. Zhao, S. L. Jackson, M. D. Suttle, I. A. Franchi, L. F. White, R. C. Greenwood, M. J. Whitehouse, L. Riches, M. Anand, B. Hoefnagels, M. M. Grady   +11 more
doaj   +1 more source

Imaging the LkCa 15 system in polarimetry and total intensity without self-subtraction artefacts★

Astronomy & Astrophysics
Context. Studying young proto-planetary discs is essential for understanding planet formation, but traditional angular differential imaging introduces self-subtraction artefacts that make their small-scale structure difficult to interpret.
Swastik C., Wahhaj Z., Benisty M., Arora S., Ginski C., Ren B. B., van Holstein R. G., de Rosa R., Banyal R. K., Tazaki R.   +9 more
doaj   +1 more source

A Short Tale of the Origin of Proteins and Ribosome Evolution. [PDF]

Microorganisms, 2022
Farías-Rico JA, Mourra-Díaz CM.
europepmc   +1 more source