Results 91 to 100 of about 399,848 (263)

Protoplanetary Disk Masses from Radiative Transfer Modeling: A Case Study in Taurus [PDF]

Astronomical Journal, 2019
Measuring the masses of protoplanetary disks is crucial for understanding their planet-forming potential. Typically, dust masses are derived from (sub-)millimeter flux density measurements plus assumptions for the opacity, temperature, and optical depth ...
N. Ballering, J. Eisner
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

Discovery of Jet–Bubble–Disk Interaction: Jet Feedback on a Protoplanetary Disk Via an Expanding Bubble in WSB 52

The Astrophysical Journal
While stellar jets and outflows are fueled by accretion from disks, their direct influence on disks remain unexplored. Here, we revisit Atacama Large Millimeter/submillimeter Array observations of ^12 CO ( J  = 2–1) line emission for the young stellar ...
Masataka Aizawa, Ryuta Orihara, Munetake Momose   +2 more
doaj   +1 more source

The Roles of Dust Growth in the Temperature Evolution and Snow Line Migration in Magnetically Accreting Protoplanetary Disks

The Astrophysical Journal, 2023
The temperature structure of protoplanetary disks provides an important constraint on where in the disks rocky planets like our own form. Recent nonideal magnetohydrodynamical (MHD) simulations have shown that the internal Joule heating associated with ...
Katsushi Kondo, Satoshi Okuzumi, Shoji Mori   +2 more
doaj   +1 more source

On rapid migration and accretion within disks around supermassive black holes

, 2011
Galactic nuclei should contain a cluster of stars and compact objects in the vicinity of the central supermassive black hole due to stellar evolution, minor mergers and gravitational dynamical friction.
Alexander, Armitage, Artymowicz, B. McKernan, Baruteau, Chang, Collin, Cordes, Crummy, Gierliński, Goodman, H. B. Perets, Ho, K. E. S. Ford, Kauffmann, Kormendy, Krolik, L. M. Winter, Levin, Lodato, Lyra, Masset, McKernan, McKernan, McKernan, Merritt, Miralda Escudé, Miralda Escudé, Morris, Nayakshin, Nelson, Noble, Ostriker, Paardekooper, Pepliński, Pepliński, Perets, Pier, Rauch, Remillard, Schödel, Shakura, Shlosman, Sirko, Subr, Syer, T. Yaqoob, Toropina, Vilkoviskij, W. Lyra, Winter   +50 more
core   +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

Emission from Multiple Molecular Isotopologues in a High-inclination Protoplanetary Disk

The Astronomical Journal
We present a MIRI-MRS spectrum of the high-inclination protoplanetary disk around the solar-mass (K0) star MY Lup, obtained as part of the JWST Disk Infrared Spectral Chemistry Survey (JDISCS). The spectrum shows an unusually weak water emission spectrum
Colette Salyk, Klaus M. Pontoppidan, Andrea Banzatti, Edwin Bergin, Nicole Arulanantham, Joan Najita, Geoffrey A. Blake, John Carr, Ke Zhang, Chengyan Xie   +9 more
doaj   +1 more source

eddy: Extracting Protoplanetary Disk Dynamics with Python

Journal of Open Source Software, 2019
eddy is a Python package which implements several methods for extracting kinematical information from astronomical observations of Doppler shifted molecular line emission in protoplanetary disks, the birthplace of planets.
R. Teague
semanticscholar   +1 more source

The Orbit of the Companion to HD 100453A: Binary-driven Spiral Arms in a Protoplanetary Disk [PDF]

, 2018
HD 100453AB is a 10 ± 2 Myr old binary whose protoplanetary disk was recently revealed to host a global two-armed spiral structure. Given the relatively small projected separation of the binary (1.″05, or ∼108 au), gravitational perturbations by the ...
K. Wagner, R. Dong, P. Sheehan, D. Apai, M. Kasper, M. McClure, K. Morzinski, L. Close, J. Males, P. Hinz, S. Quanz, J. Fung   +11 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