Results 91 to 100 of about 398,118 (263)

Simulation of Thermal Surface Waves in a Protoplanetary Disk in a Two-Dimensional Approximation [PDF]

, 2022
Ya. N. Pavlyuchenkov, L. A. Maksimova, Vitaly Akimkin   +2 more
openalex   +1 more source

Abundant Refractory Sulfur in Protoplanetary Disks [PDF]

Astrophysical Journal, 2019
Sulfur is one of the most abundant elements in the universe, with important roles in astro-, geo-, and biochemistry. Its main reservoirs in planet-forming disks have previously eluded detection: gaseous molecules only account for
M. Kama, O. Shorttle, A. Jermyn, C. Folsom, K. Furuya, E. Bergin, C. Walsh, L. Keller   +7 more
semanticscholar   +1 more source

Research Progress on Atmospheric Turbulence Perception and Correction Based on Adaptive Optics and Deep Learning

Advanced Photonics Research, Volume 6, Issue 7, July 2025.
This work presents a systematic review of atmospheric turbulence fundamentals, including theoretical formulations and adaptive optics‐based mitigation strategies. This includes an in‐depth examination of the devices, theories, and methodologies associated with traditional correction approaches.
Qinghui Liu, Yihang Di, Mengmeng Zhang, Zhenbo Ren, Jianglei Di, Jianlin Zhao   +5 more
wiley   +1 more source

Zonal Flow and Self-regulating Mechanism in a Hydrodynamic Disk

The Astrophysical Journal
This study addresses key aspects of momentum transport in hydrodynamic disks, which is critical for understanding zonal flow generation and turbulence in compressible hydrodynamic disks.
Chang-Chun Chen, Hui Li, P. H. Diamond, Shengtai Li   +3 more
doaj   +1 more source

An ALMA Survey of Protoplanetary Disks in the σ Orionis Cluster [PDF]

, 2017
The σ Orionis cluster is important for studying protoplanetary disk evolution, as its intermediate age (∼3–5 Myr) is comparable to the median disk lifetime.
M. Ansdell, Jonathan P. Williams, C. Manara, A. Miotello, S. Facchini, N. Marel, L. Testi, E. V. Dishoeck   +7 more
semanticscholar   +1 more source

Deep Space Network Radio Science and Ground‐Based Planetary Radar in the Next Decade

Radio Science, Volume 60, Issue 7, July 2025.
Abstract The Deep Space Network (DSN) has been a core operational element of NASA's crewed and robotic exploration of the Solar System since the early 1960s. The primary role of the DSN has been to acquire telemetry and navigation data, but over the years, its radiometric and radar capabilities have expanded to form a system for obtaining unique ...
R. S. Park, J. E. Riedel, N. Rodriguez‐Alvarez, M. Brozovic, L. A. M. Benner, P. Vergados, D. Buccino, C. S. Jacobs, L. S. Locke, S. W. Asmar, R. Castano, T. J. W. Lazio, J. Jao, C. Lee   +13 more
wiley   +1 more source

Puffed-up Inner Rings and Razor-thin Outer Rings in Structured Protoplanetary Disks

The Astrophysical Journal
The vertical distribution of pebbles in protoplanetary disks is a fundamental property influencing planet formation, from dust aggregation to the assembly of planetary cores.
Haochang Jiang, Feng Long, Enrique Macías, Myriam Benisty, Kiyoaki Doi, Cornelis P. Dullemond, Ryan A. Loomis, Ilaria Pascucci, Sebastián Pérez, Shangjia Zhang, Zhaohuan Zhu   +10 more
doaj   +1 more source

An Analytical Model of Radial Dust Trapping in Protoplanetary Disks [PDF]

Astrophysical Journal, 2019
We study dust concentration in axisymmetric gas rings in protoplanetary disks. Given the gas surface density, we derived an analytical total dust surface density by taking into account the differential concentration of all grain sizes.
A. Sierra, S. Lizano, Enrique Mac'ias, C. Carrasco-Gonz'alez, M. Osorio, M. Flock   +5 more
semanticscholar   +1 more source

Oued Chebeika 002: A new CI1 meteorite linked to outer solar system bodies

Meteoritics &Planetary Science, Volume 60, Issue 7, Page 1441-1479, July 2025.
Abstract CI1 chondrites are rare meteorites with high scientific value. In fact, they are the most chemically primitive meteorites and show evidence of intense parent‐body aqueous alteration. They also share strong similarities with samples from Ryugu and Bennu asteroids returned by the JAXA Hayabusa2 and NASA's OSIRIS‐REx missions.
J. Gattacceca, M. Gounelle, B. Devouard, J.‐A. Barrat, L. Bonal, A. J. King, C. Maurel, P. Beck, M. Roskosz, J.‐C. Viennet, D. Mukherjee, N. Dauphas, P. R. Heck, T. Yokoyama, K. López García, O. Poch, O. Grauby, C. S. Harrison, V. Vinogradoff, P. Vernazza, S. Tikoo, V. Vidal, P. Rochette, D. AuYang, D. Borschneck, J. Juraszek, B. Clark   +26 more
wiley   +1 more source

Protoplanetary Disk Polarization at Multiple Wavelengths: Are Dust Populations Diverse?

The Astrophysical Journal
Millimeter and submillimeter observations of continuum linear dust polarization provide insight into dust grain growth in protoplanetary disks, which are the progenitors of planetary systems.
Rachel E. Harrison, Zhe-Yu Daniel Lin, Leslie W. Looney, Zhi-Yun Li, Haifeng Yang, Ian W. Stephens, Manuel Fernández-López   +6 more
doaj   +1 more source