Circumstellar disks of the most vigorously accreting young stars. [PDF]
Sci Adv, 2016 Subaru-HiCIAO observations on FU Orionis objects revealed asymmetric structures on 102 to 103 AU scales of circumstellar disks and envelopes. Stars may not accumulate their mass steadily, as was previously thought, but in a series of violent events ...
Liu HB +14 more
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Reference Star Differential Imaging of Close-in Companions and Circumstellar Disks with the NIRC2 Vortex Coronagraph at the W. M. Keck Observatory [PDF]
Astronomical Journal, 2019 Reference star differential imaging (RDI) is a powerful strategy for high-contrast imaging. Using example observations taken with the vortex coronagraph mode of Keck/NIRC2 in L′ band, we demonstrate that RDI provides improved sensitivity to point sources
Garreth Ruane +13 more
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Gravitational Instabilities in Circumstellar Disks [PDF]
Annual Review of Astronomy and Astrophysics, 2016 [Abridged] Star and planet formation are the complex outcomes of gravitational collapse and angular momentum transport mediated by protostellar and protoplanetary disks. In this review we focus on the role of gravitational instability in this process. We
Kaitlin M Kratter, Giuseppe Lodato
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Spectral Energy Distributions of T Tauri Stars with Passive Circumstellar Disks [PDF]
, 1997 We derive hydrostatic, radiative equilibrium models for passive disks surrounding T Tauri stars. Each disk is encased by an optically thin layer of superheated dust grains.
Eugene Chiang, Peter Goldreich
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The effect of local optically thick regions in the long-wave emission of young circumstellar disks [PDF]
, 2012 Multi-wavelength observations of protoplanetary disks in the sub-millimeter continuum have measured spectral indices values which are significantly lower than what is found in the diffuse interstellar medium. Under the assumption that mm-wave emission of
Luca Ricci +5 more
semanticscholar +5 more sources
Circumstellar disks and planets [PDF]
, 2012 We present a review of the interplay between the evolution of circumstellar disks and the formation of planets, both from the perspective of theoretical models and dedicated observations.
S. Wolf +12 more
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IDENTIFYING NEARBY, YOUNG, LATE-TYPE STARS BY MEANS OF THEIR CIRCUMSTELLAR DISKS [PDF]
, 2012 It has recently been shown that a significant fraction of late-type members of nearby, very young associations (age ≲10 Myr) display excess emission at mid-IR wavelengths indicative of dusty circumstellar disks.
Adam Schneider +9 more
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Nine Localized Deviations from Keplerian Rotation in the DSHARP Circumstellar Disks: Kinematic Evidence for Protoplanets Carving the Gaps [PDF]
Astrophysical Journal, 2020 We present evidence for localized deviations from Keplerian rotation, i.e., velocity “kinks,” in 8 of the 18 circumstellar disks observed by the DSHARP program: DoAr 25, Elias 2–27, GW Lup, HD 143006, HD 163296, IM Lup, Sz 129, and WaOph 6.
C. Pinte +14 more
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Tracing episodic accretion with NOEMA: FU Orionis-type stars and their millimeter environment [PDF]
EPJ Web of Conferences, 2022 The earliest phases of star formation are characterised by intense mass accretion from the circumstellar disk to the central star. One group of lowmass young stellar objects, FU Orionis-type stars (FUors) exhibit accretion rate peaks accompanied by ...
Fehér O. +6 more
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Gas flow and accretion via spiral streamers and circumstellar disks in a young binary protostar [PDF]
Science, 2019 Gas flows and disks in a young binary Many stars are in binary systems, pairs of stars gravitationally bound to each other, often with the two components having similar masses. It remains unclear how these systems assemble and accrete material.
Felipe O. Alves +6 more
semanticscholar +1 more source