Results 51 to 60 of about 5,220,245 (377)

Revisiting Collisional Dust Growth in Class 0/I Protostellar Disks: Sweep-up Can Convert a Few 10 M ⊕ of Dust into Kilogram Pebbles in 0.1 Myr

The Astrophysical Journal, 2023
Recent observations suggest that the first stages of planet formation likely take place in the Class 0/I phase of young stellar object evolution, when the star and the disk are still embedded in an infalling envelope.
Wenrui Xu, Philip J. Armitage
doaj   +1 more source

Planet Formation Imager (PFI): Introduction and Technical Considerations [PDF]

, 2014
Complex non-linear and dynamic processes lie at the heart of the planet formation process. Through numerical simulation and basic observational constraints, the basics of planet formation are now coming into focus.
Berger, J.-P., Buscher, D., Creech,, Eakman, M. J., Haniff, C., Ireland, M., Kraus, S., Labadie, L., Lacour, S., Le Coroller, H., Malbet, F., Monnier, J. D., Petrov, R. G., Pott, J.-U., Rajagopal, J. K., Ridgway, S., Surdej, Jean, Ten Brummelaar, T., Tuthill, P., Van Belle, G.   +19 more
core   +2 more sources

External photoevaporation of circumstellar discs constrains the time-scale for planet formation [PDF]

Monthly notices of the Royal Astronomical Society, 2019
Planet-forming circumstellar discs are a fundamental part of the star formation process. Since stars form in a hierarchical fashion in groups of up to hundreds or thousands, the UV radiation environment that these discs are exposed to can vary in ...
Francisca Concha-Ram'irez, M. J. C. Wilhelm, S. Portegies Zwart, T. J. Haworth   +3 more
semanticscholar   +1 more source

Planet Formation and Disk-Planet Interactions [PDF]

, 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

The Effect of Dust Evolution and Traps on Inner Disk Water Enrichment

The Astrophysical Journal, 2023
Substructures in protoplanetary disks can act as dust traps that shape the radial distribution of pebbles. By blocking the passage of pebbles, the presence of gaps in disks may have a profound effect on pebble delivery into the inner disk, crucial for ...
Anusha Kalyaan, Paola Pinilla, Sebastiaan Krijt, Andrea Banzatti, Giovanni Rosotti, Gijs D. Mulders, Michiel Lambrechts, Feng Long, Gregory J. Herczeg   +8 more
doaj   +1 more source

Evidence for the start of planet formation in a young circumstellar disk [PDF]

Nature Astronomy, 2018
The growth of dust grains in protoplanetary disks is a necessary first step towards planet formation1. This growth has been inferred from observations of thermal dust emission2 towards mature protoplanetary systems (age >2 million years) with masses that
D. Harsono, P. Bjerkeli, M. V. D. van der Wiel, J. Ramsey, L. Maud, L. Kristensen, J. Jørgensen   +6 more
semanticscholar   +1 more source

Planet formation imager: project update [PDF]

Optical and Infrared Interferometry and Imaging VI, 2018
Presented at 2018 SPIE Astronomical Telescopes + Instrumentation, Austin, Texas, USA.
Monnier, J. D., Ireland, M., Kraus, S., Alonso-Herrero, A., Bonsor, A., Baron, Fabien, Bayo, A., Berger, J.-P., Boyajian, T., Chiavassa, A., Ciardi, D., Creech-Eakman, M., De Wit, W.-J., Defrere, Denis, Dong, R., Duchêne, G., Espaillat, C., Gallenne, A., Gandhi, P., Gonzalez, J.-F., Haniff, C., Hoenig, S., Ilee, J., Isella, A., Jensen, E., Juhasz, A., Kane, S., Kishimoto, M., Kley, W., Kral, Q., Kratter, K., Labadie, L., Lacour, S., Laughlin, G., Le Bouquin, J.-B., Michael, E., Meru, F., Millan-Gabet, R., Millour, F., Minardi, S., Morbidelli, A., Mordasini, C., Morlok, A., Mozurkewich, D., Nelson, R., Olofsson, J., Oudmaijer, R., Packham, C., Paladini, C., Panic, O., Petrov, R., Pope, B., Pott, J.-U., Quiroga-Nunez, L. H., Ramos Almeida, C., Raymond, S. N., Regaly, Z., Reynolds, M., Ridgway, S., Rinehart, S., Schreiber, M., Smith, M., Stassun, K., Surdej, Jean, Ten Brummelaar, T., Tristram, K., Turner, N., Tuthill, P., Van Belle, G., Vasisht, G., Wallace, A., Weigelt, G., Wishnow, E., Wittkowski, M., Wolf, S., Young, J., Zhao, M., Zhu, Z., Zúñiga-Fernández, S., Tuthill, P. G., Creech,, Eakman, M. J., Merand, A.   +82 more
openaire   +7 more sources

Evidence of an Upper Bound on the Masses of Planets and Its Implications for Giant Planet Formation [PDF]

, 2018
Celestial bodies with a mass of have been found orbiting nearby stars. It is unknown whether these objects formed like gas-giant planets through core accretion or like stars through gravitational instability.
K. Schlaufman
semanticscholar   +1 more source

Diverse outcomes of planet formation and composition around low-mass stars and brown dwarfs [PDF]

Monthly notices of the Royal Astronomical Society, 2019
The detection of Earth-size exoplanets around low-mass stars –in stars such as Proxima Centauri and TRAPPIST-1– provide an exceptional chance to improve our understanding of the formation of planets around M stars and brown dwarfs.
Yamila Miguel, A. Cridland, C. Ormel, J. Fortney, Shigeru Ida   +4 more
semanticscholar   +1 more source

Migration and giant planet formation

, 2004
We extend the core-accretion model of giant gaseous planets by Pollack et al. (\cite{P96}) to include migration, disc evolution and gap formation. Starting with a core of a fraction of an Earth's mass located at 8 AU, we end our simulation with the onset
Alibert, Y., Benz, W., Mordasini, C.
core   +1 more source