Results 21 to 30 of about 4,378,137 (245)

Planet Formation [PDF]

open access: yes, 2021
Our galaxy is full with planets. We now know that planets and planetary systems are diverse and come with different sizes, masses and compositions, as well as various orbital architectures. Although there has been great progress in understanding planet formation in the last couple of decades, both observationally and theoretically, several fundamental ...
Helled, Ravit, Morbidelli, Alessandro
openaire   +2 more sources

THE FIRST PLANETS: THE CRITICAL METALLICITY FOR PLANET FORMATION [PDF]

open access: yesThe Astrophysical Journal, 2012
12 pages, 5 figures; accepted for publication in ...
Johnson, J., Li, H.
openaire   +3 more sources

Early planet formation as a trigger for further planet formation [PDF]

open access: yesNature, 1999
Nature in press ...
Armitage, Philip J., Hansen, Brad M. S.
openaire   +2 more sources

Simulations for Terrestrial Planets Formation [PDF]

open access: yesProceedings of the International Astronomical Union, 2009
AbstractWe investigate the formation of terrestrial planets in the late stage of planetary formation using two-planet model. At that time, the protostar has formed for about 3 Myr and the gas disk has dissipated. In the model, the perturbations from Jupiter and Saturn are considered.
Jianghui, Ji, Niu, Zhang
openaire   +4 more sources

Planet Formation via Gravitational Instability [PDF]

open access: yes, 2021
Some observed exoplanets cannot be explained in the standard core accretion paradigm. An alternative formation model, planet formation via gravitational instability (GI), has been proposed as a formation mechanism instead.
Schib, Oliver
core  

Gap formation in a self-gravitating disk and the associated migration of the embedded giant planet [PDF]

open access: yes, 2014
We present the results of our recent study on the interactions between a giant planet and a self-gravitating gas disk. We investigate how the disk's self-gravity affects the gap formation process and the migration of the giant planet.
Zhang, Hui   +3 more
core   +1 more source

Planet Formation and Disk-Planet Interactions [PDF]

open access: yes, 2019
This review is based on lectures given at the 45th Saas-Fee Advanced Course 'From Protoplanetary Disks to Planet Formation' held in March 2015 in Les Diablerets, Switzerland. Starting with an overview of the main characterictics of the Solar System and extrasolar planets, we describe the planet formation process in terms of the sequential accretion ...
openaire   +2 more sources

Characterization of exoplanets from their formation I. Models of combined planet formation and evolution [PDF]

open access: yes, 2012
Context. A first characterization of extrasolar planets by the observational determination of the radius has recently been achieved for a large number of planets.
Mordasini, C.   +7 more
core   +1 more source

UiO‐66 metal–organic frameworks in biomedicine: From structural tunability to bioimaging, photodiagnostics, and photodynamic cancer therapy

open access: yesFEBS Open Bio, EarlyView.
UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová   +2 more
wiley   +1 more source

From energy provision to protein synthesis: Tunnelling nanotubes as mediators of intercellular metabolic cooperation in cancer

open access: yesFEBS Open Bio, EarlyView.
The cytoskeleton‐mediated transport of mitochondria via tunnelling nanotubes restores respiration, increases ATP production, rescues cells from apoptosis, activates the AKT/mTOR signalling pathway, promotes cell migration and invasiveness, contributes to cancer progression and treatment resistance.
Stanislava Martínková, Jan Trnka
wiley   +1 more source

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