Young Stellar Objects, Accretion Disks, and Their Variability with Rubin Observatory LSST
The Astrophysical Journal Supplement Series, 2023 Abstract Vera C. Rubin Observatory, through the Legacy Survey of Space and Time (LSST), will allow us to derive a panchromatic view of variability in young stellar objects (YSOs) across all relevant timescales. Indeed, both short-term variability (on timescales of hours to days) and long-term variability (months to years), predominantly ...
R. Bonito +16 more
openaire +5 more sources
Late-time UV Observations of Tidal Disruption Flares Reveal Unobscured, Compact Accretion Disks [PDF]
Astrophysical Journal, 2018 The origin of thermal optical and UV emission from stellar tidal disruption flares (TDFs) remains an open question. We present Hubble Space Telescope far-UV (FUV) observations of eight optical/UV-selected TDFs 5–10 yr post-peak.
Sanne G M van Velzen +5 more
semanticscholar +1 more source
Interaction Of A Stellar Magnetic Field With A Turbulent Accretion Disk [PDF]
International Astronomical Union Colloquium, 1997 AbstractMagnetized objects surrounded by a turbulent and keplerian accretion disk are considered. In such systems, magnetic field lines are embedded into the disk. The magnetic field of the central object is assumed to be dipolar in the absence of the accretion disk.
Anne Bardou, Jean Heyvaerts
openaire +1 more source
Accretion-powered stellar winds. III. spin-equilibrium solutions [PDF]
, 2008 We compare the stellar wind torque calculated in a previous work (Paper II) to the spin-up and spin-down torques expected to arise from the magnetic interaction between a slowly rotating (∼10% of breakup) pre-main-sequence star and its accretion disk ...
Sean P. Matt (21829835) +1 more
core +6 more sources
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.
F. Alves +6 more
semanticscholar +1 more source
Three-Dimensional General-Relativistic Magnetohydrodynamic Simulations of Remnant Accretion Disks from Neutron Star Mergers: Outflows and r-Process Nucleosynthesis. [PDF]
Physical Review Letters, 2017 The merger of binary neutron stars, or of a neutron star and a stellar-mass black hole, can result in the formation of a massive rotating torus around a spinning black hole.
D. Siegel, B. Metzger
semanticscholar +1 more source
Disk evolution, element abundances and cloud properties of young gas giant planets [PDF]
, 2014 ChHc and PBR highlights financial support of the European Community under the FP7 program by an ERC starting grant. PW, IK, and WFT acknowledge funding from the European Union Seventh Framework Programme FP7-2011 under grant agreement No.
Kamp, I. +19 more
core +2 more sources
On the Accretion Origin of a Vast Extended Stellar Disk around the Andromeda Galaxy [PDF]
The Astrophysical Journal, 2005 We present the discovery of an inhomogenous, low-surface brightness, extended disk-like structure around the Andromeda galaxy (M31) based on a large kinematic survey of more than 2800 stars with the Keck/DEIMOS spectrograph. The stellar structure spans radii from 15 kpc out to ~40 kpc, with detections out to R ~ 70 kpc.
Ibata, R +5 more
openaire +3 more sources
PROBING STELLAR ACCRETION WITH MID-INFRARED HYDROGEN LINES [PDF]
, 2015 In this paper we investigate the origin of the mid-infrared (IR) hydrogen recombination lines for a sample of 114 disks in different evolutionary stages (full, transitional, and debris disks) collected from the Spitzer archive.
E. Rigliaco +14 more
semanticscholar +1 more source
Heating and cooling processes in disks [PDF]
, 2015 The research leading to these results has received funding from the European Union Seventh Framework Programme FP7-2011 under grant agreement no 284405.
Peter Woitke +2 more
core +1 more source