Results 61 to 70 of about 16,676 (207)

Debris Disks: Probing Planet Formation

, 2018
Debris disks are the dust disks found around ~20% of nearby main sequence stars in far-IR surveys. They can be considered as descendants of protoplanetary disks or components of planetary systems, providing valuable information on circumstellar disk ...
A Bonsor, A Bonsor, A Bonsor, A Brandeker, A Gáspár, A Gáspár, A Hardy, A Moro-Martín, A Moór, A Schneider, A Shannon, A Shannon, AJ Mustill, AJ Mustill, AJW Richert, AM Hughes, AM Hughes, AM Lagrange, AP Jackson, AP Jackson, AV Krivov, AV Krivov, AV Krivov, B Ercolano, B Mennesson, B Sibthorpe, BP Bowler, C Eistrup, C Schüppler, C Vitense, CC Stark, Christine H. Chen, CM Lisse, CM Telesco, D Carrera, D Li, D Tamayo, DA Fischer, DA Golimowski, E Chiang, EJ Lee, ER Nesvold, ER Nesvold, F Geiler, F. Kiefer, G Bryden, GM Kennedy, GM Kennedy, GM Kennedy, H Beust, H Beust, H Genda, HF Levison, HYA Meng, HYA Meng, HYA Meng, J Lieman-Sifry, J Péricaud, J Wisdom, J. Olofsson, JC Augereau, JH Rhee, JM Carpenter, JN Winn, JS Greaves, JS Greaves, K Heng, KYL Su, L Matrà, L Matrà, L Matrà, L Ricci, LA Cieza, LE Strubbe, M Booth, M Booth, M Pan, MA MacGregor, MA MacGregor, MA Muñoz-Gutiérrez, Maryam Tabeshian, MC Wyatt, MC Wyatt, MC Wyatt, MC Wyatt, MC Wyatt, MC Wyatt, MC Wyatt, MC Wyatt, MC Wyatt, MC Wyatt, MC Wyatt, MC Wyatt, MC Wyatt, MC Wyatt, N Kains, N Pawellek, NA Kaib, ND Thureau, NM Phillips, O Panić, P Faber, P Kalas, P Thébault, Q Kral, Q Kral, Q. Kral, R Smith, S Marino, S Marino, S Marino, S Rappaport, S. Krijt, SJ Kenyon, SJ Kenyon, SJ Kenyon, SJ Kenyon, SN Raymond, T Currie, T Löhne, T Löhne, T Takeuchi, TD Pearce, TD Pearce, TS Boyajian, V Faramaz, W Lyra, WRF Dent, X Zheng, Y Hasegawa, Á Kóspál, É Morey   +131 more
core   +1 more source

The effects of pressure on immiscibility in metallic, core‐forming liquids: Implications for protoplanetary differentiation

Meteoritics &Planetary Science, Volume 61, Issue 4, Page 720-738, April 2026.
Abstract Mechanisms for metal core formation in rocky planetesimals and planetary embryos remain poorly constrained, in part due to complexities arising from immiscibility in core‐forming liquids at low pressures. To assess the pressure dependence of immiscibility and its role in protoplanetary differentiation, we performed experiments at 3 and 5 GPa ...
Geoffrey David Bromiley, Hidenori Terasaki, Matthew Varnam   +2 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

Confined Chemistry in Space: Zeolite‐Supported Fe13 Nanoclusters Modulate CS Reactivity

Small Structures, Volume 7, Issue 3, March 2026.
The study explores how an Fe13 cluster confined in chabazite reshapes the reaction of CS and H2 under astrochemical conditions. Confinement promotes C–S bond cleavage over hydrogenation, directing chemistry toward CH4 and H2S formation. Additional CS enables CS2 and C2 species. Microkinetic analysis identifies protoplanetary environments where zeolites
Gerard Pareras, Albert Rimola
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

Substructures in Compact Disks of the Taurus Star-forming Region

The Astrophysical Journal, 2023
Observations of substructure in protoplanetary disks have largely been limited to the brightest and largest disks, excluding the abundant population of compact disks, which are likely sites of planet formation.
Shangjia Zhang, Matt Kalscheur, Feng Long, Ke Zhang, Deryl E. Long, Edwin A. Bergin, Zhaohuan Zhu, Leon Trapman   +7 more
doaj   +1 more source

Exploring the Interior Structure of (16) Psyche Through Basin‐Scale Collisions

Journal of Geophysical Research: Planets, Volume 131, Issue 3, March 2026.
Abstract Asteroid (16) Psyche, the largest member of the M/X‐type asteroids, may be the leftover core of a differentiated planetesimal. As such (16) Psyche will be explored in detail by NASA's discovery‐class Psyche mission in 2029. This will be the first mission to orbit a metal‐rich asteroid, or any asteroid in the 100–500 km size range.
Namya Baijal, Erik Asphaug, C. Adeene Denton, Martin Jutzi, Sabina Raducan, Saverio Cambioni, Linda T. Elkins‐Tanton, Amanda Alexander   +7 more
wiley   +1 more source

The ALMA Survey of Gas Evolution of PROtoplanetary Disks (AGE-PRO). XI. Beam-corrected Gas Disk Sizes from Fitting 12CO Moment Zero Maps

The Astrophysical Journal
The inward drift of millimeter–centimeter sized pebbles in protoplanetary disks has become an important part of our current theories of planet formation and, more recently, planet composition as well.
Leon Trapman, Miguel Vioque, Nicolás T. Kurtovic, Ke Zhang, Giovanni P. Rosotti, Paola Pinilla, John Carpenter, Lucas A. Cieza, Ilaria Pascucci, Rossella Anania, Carolina Agurto-Gangas, Dingshan Deng, James Miley, Laura M. Pérez, Anibal Sierra, Benoît Tabone, Dary A. Ruiz-Rodriguez, Camilo González-Ruilova, Estephani TorresVillanueva   +18 more
doaj   +1 more source

Location and sizes of forsterite grains in protoplanetary disks: interpretation from the Herschel DIGIT programme [PDF]

, 2014
The spectra of protoplanetary disks contain mid- and far- infrared emission features produced by forsterite dust grains. The spectral features contain information about the forsterite temperature, chemical composition and grain size.
de Vries, B. L., Dominik, C., Maaskant, K. M., Min, M., Molster, F., Tielens, A. G. G. M., Waters, L. B. F. M.   +6 more
core   +6 more sources

Protoplanetary Disks as (Possibly) Viscous Disks [PDF]

The Astrophysical Journal, 2017
Abstract Protoplanetary disks are believed to evolve on megayear timescales in a diffusive (viscous) manner as a result of angular momentum transport driven by internal stresses. Here we use a sample of 26 protoplanetary disks resolved by ALMA with measured (dust-based) masses and stellar accretion rates to derive the dimensionless α ...
openaire   +3 more sources