Results 41 to 50 of about 73,704 (164)
Modeling and interpretation of images*
EPJ Web of Conferences, 2015 Imaging protoplanetary disks is a challenging but rewarding task. It is challenging because of the glare of the central star outshining the weak signal from the disk at shorter wavelengths and because of the limited spatial resolution at longer ...
Min Michiel
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Meteoritics &Planetary Science, Volume 61, Issue 8, Page 1965-1993, August 2026.Abstract Volatile‐rich xenolithic clasts in different types of brecciated meteorites represent unique pristine solar system material. This study investigates the maturity and thermal history of organic matter using Raman spectroscopy and aqueous alteration effects using infrared spectroscopy in the matrix of 15 volatile‐rich clasts (C1 and CM‐like ...
Swarna Prava Das +7 more
wiley +1 more source
The Astrophysical JournalWe developed a one-dimensional magnetohydrodynamic (MHD) simulation code to investigate the long-term evolution of protoplanetary disks with low computational cost.
Yudai Kobayashi +3 more
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Meteoritics &Planetary Science, Volume 61, Issue 8, Page 1994-2015, August 2026.Abstract Amorphous carbon (αC) is found in various extraterrestrial particles, including those thought to originate from the outer Solar System. αC can form through two main processes involving C‐rich materials: exposure to energetic charged particles and thermal processing.
M. Germanà +10 more
wiley +1 more source
Chemical Evolution of a Protoplanetary Disk [PDF]
Proceedings of the International Astronomical Union, 2011 AbstractIn this paper we review recent progress in our understanding of the chemical evolution of protoplanetary disks. Current observational constraints and theoretical modeling on the chemical composition of gas and dust in these systems are presented.
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Vortices in Protoplanetary Disks [PDF]
The Astrophysical Journal, 1999 We use a high order accuracy spectral code to carry out two-dimensional time-dependent numerical simulations of vortices in accretion disks. In particular, we examine the stability and the life time of vortices in circumstellar disks around young stellar objects. The results show that cyclonic vortices dissipate quickly, while anticyclonic vortices can
Godon, Patrick., Livio, Mario.
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A New All-sky Catalogue of Candidate Protoplanetary Disks from Aggregated Optical and Infrared Surveys [PDF]
, 2017 To guide research into formation scenarios for giant planets, I present a catalogue of 199,391 sources with candidate protoplanetary disks. These candidates are identified through an iterative color selection process in a 5,460-dimensional color-color ...
Horenstein, Daniel
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LAMOST Reveals Long-lived Protoplanetary Disks
The Astronomical JournalWhile both observations and theories demonstrate that protoplanetary disks are not expected to live much longer than ∼10 Myr, several examples of prolonged disks have been observed in the past.
Xiao-Long Wang +4 more
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Protoplanetary Disks and Their Evolution [PDF]
Annual Review of Astronomy and Astrophysics, 2011 Flattened, rotating disks of cool dust and gas extending for tens to hundreds of astronomical units are found around almost all low-mass stars shortly after their birth. These disks generally persist for several million years, during which time some material accretes onto the star, some is lost through outflows and photoevaporation, and some condenses
Williams, Jonathan P., Cieza, Lucas A.
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Chemistry in Externally FUV-irradiated Disks in the Outskirts of the Orion Nebula Cluster
The Astrophysical JournalMost stars are born in stellar clusters, and their protoplanetary disks, which are the birthplaces of planets, can, therefore, be affected by the radiation of nearby massive stars.
Javiera K. Díaz-Berríos +6 more
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