Results 101 to 110 of about 18,502 (219)

MINDS. JWST/MIRI Reveals a Dynamic Gas-rich Inner Disk inside the Cavity of SY Cha

The Astrophysical Journal
SY Cha is a T Tauri star surrounded by a protoplanetary disk with a large cavity seen in the millimeter continuum but has the spectral energy distribution of a full disk.
Kamber R. Schwarz, Thomas Henning, Valentin Christiaens, Danny Gasman, Matthias Samland, Giulia Perotti, Hyerin Jang, Sierra L. Grant, Benoît Tabone, Maria Morales-Calderón, Inga Kamp, Ewine F. van Dishoeck, Manuel Güdel, Pierre-Olivier Lagage, David Barrado, Alessio Caratti o Garatti, Adrian M. Glauser, Tom P. Ray, Bart Vandenbussche, L. B. F. M. Waters, Aditya M. Arabhavi, Jayatee Kanwar, Göran Olofsson, Donna Rodgers-Lee, Jürgen Schreiber, Milou Temmink   +25 more
doaj   +1 more source

A Method to Constrain the Size of the Protosolar Nebula

, 2012
Observations indicate that the gaseous circumstellar disks around young stars vary significantly in size, ranging from tens to thousands of AU. Models of planet formation depend critically upon the properties of these primordial disks, yet in general it ...
Buie, M. W., Kretke, K. A., Levison, H. F., Morbidelli, A.   +3 more
core   +3 more sources

Natural separation of two primordial planetary reservoirs in an expanding solar protoplanetary disk. [PDF]

Sci Adv, 2022
Liu B, Johansen A, Lambrechts M, Bizzarro M, Haugbølle T.   +4 more
europepmc   +1 more source

The Effect of Stellar Evolution on Dispersal of Protoplanetary Disks: Disk Fraction in Star-forming Regions

The Astrophysical Journal
We study the effect of stellar evolution on the dispersal of protoplanetary disks by performing one-dimensional simulations of long-term disk evolution.
Ayano Komaki, Naoki Yoshida
doaj   +1 more source

Our astrochemical heritage

, 2012
Our Sun and planetary system were born about 4.5 billion years ago. How did this happen and what is our heritage from these early times? This review tries to address these questions from an astrochemical point of view.
Caselli, Paola, Ceccarelli, Cecilia
core   +3 more sources

The diversification and dissipation of protoplanetary disks

Astronomy & Astrophysics
Protoplanetary disk evolution exhibits trends with stellar mass, but also diversity of structure, and lifetime, with implications for planet formation and demographics. We show how varied outcomes can result from evolving structures in the inner disk that attenuate stellar soft X-rays that otherwise drive photoevaporation in the outer disk.
Eric Gaidos, Lukas Gehrig, Manuel Güdel
openaire   +2 more sources

Gravitational Instability in Protoplanetary Disk with Cooling: 2D Global Analysis

The Astrophysical Journal
Self-gravity is important in protoplanetary disks for planet formation through gravitational instability (GI). We study the cooling effect on GI in a thin two-dimensional protoplanetary disk.
Zehao Su, Xing Wei
doaj   +1 more source

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 Evolution of the Water Distribution in a Viscous Protoplanetary Disk

, 2005
(Abridged) Astronomical observations have shown that protoplanetary disks are dynamic objects through which mass is transported and accreted by the central star.
Ciesla, Fred J., Cuzzi, Jeffrey N.
core   +2 more sources

Unveiling the Chemical Complexity and C/O Ratio of the HD 163296 Protoplanetary Disk: Constraints from Multiline ALMA Observations of Organics, Nitriles, and Sulfur-bearing and Deuterated Molecules

The Astrophysical Journal Supplement Series
The physical and chemical conditions within a protoplanetary disk play a crucial role in determining its chemical composition, which is subsequently inherited by any forming planets. To probe these conditions, high-resolution molecular line observations,
Parashmoni Kashyap, Liton Majumdar, Edwin A. Bergin, Geoffrey A. Blake, Karen Willacy, Stéphane Guilloteau, Anne Dutrey, Sheng-Yuan Liu, Thomas Henning, Paul F. Goldsmith, Dariusz C. Lis, S. Maitrey, Neal Turner, Raghvendra Sahai, Chin-Fei Lee, Masao Saito   +15 more
doaj   +1 more source