Results 1 to 10 of about 80,991 (212)
Circumstellar disks of the most vigorously accreting young stars [PDF]
Science Advances, 2016 Subaru-HiCIAO observations on FU Orionis objects revealed asymmetric structures on 10 2 to 10 3 AU scales of circumstellar disks and envelopes.
Nobuhiko Kusakabe +2 more
exaly +3 more sources
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
doaj +1 more source
The Astrophysical Journal, 2023 The first step toward planet formation is grain growth from (sub)micrometer to millimeter/centimeter sizes. Grain growth has been reported not only in Class II protoplanetary disks but also in Class 0/I protostellar envelopes.
Ilseung Han +4 more
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Avalanches and the Distribution of Reconnection Events in Magnetized Circumstellar Disks
The Astrophysical Journal, 2023 Cosmic rays produced by young stellar objects can potentially alter the ionization structure, heating budget, chemical composition, and accretion activity in circumstellar disks.
Marco Fatuzzo +3 more
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Mass Accretion Processes in Young Stellar Objects: Role of Intense Flaring Activity
Acta Polytechnica CTU Proceedings, 2014 According to the magnetospheric accretion scenario, young low-mass stars are surrounded by circumstellar disks which they interact with through accretion of mass. The accretion builds up the star to its nal mass and is also believed to power the mass out
Salvatore Orlando +3 more
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The Apparent Absence of Forward Scattering in the HD 53143 Debris Disk
The Astrophysical Journal, 2023 HD 53143 is a mature Sun-like star and host to a broad disk of dusty debris, including a cold outer ring of planetesimals near 90 au. Unlike most other inclined debris disks imaged at visible wavelengths, the cold disk around HD 53143 appears as ...
Christopher C. Stark +7 more
doaj +1 more source
The Astrophysical JournalYoung protostellar binary systems, with expected ages less than ∼10 ^5 yr, are little modified since birth, providing key clues to binary formation and evolution. We present a first look at the young, Class 0 binary protostellar system R CrA IRAS 32 from
Frankie J. Encalada +21 more
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On the Evolution of Circumstellar Disks Modified by the Presence of a Binary
The Astrophysical JournalStars form within circumstellar disks, and some binary stars develop circumbinary disks surrounding the pair. Observations suggest that disks that form around binary-star systems are less common than those around single stars. One possible explanation is
Aishwarya Balivada, Paul C. Duffell
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Long-term optical variability of high-mass X-ray binaries
Astronomy & AstrophysicsContext. Systems known as Be/X-ray binaries form the most numerous group of high-mass X-ray binaries. Their long-term optical and infrared variability reflects the evolution of the circumstellar disk around the luminous companion.
Reig P., Blinov D., Tzouvanou A.
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The Astrophysical JournalProtoplanetary disk evolution can be deeply influenced by the UV radiation emitted by neighboring massive stars (mainly of spectral types O and B). We show that the process of external photoevaporation , which causes an outside-in depletion of disk ...
Rossella Anania +20 more
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