Grain Alignment by Radiative Torques in Special Conditions and Implications
arXiv:1407.8228 · doi:10.1093/mnras/stt2240
Abstract
Grain alignment by radiative torques (RATs) has been extensively studied for various environment conditions, including interstellar medium, dense molecular clouds, and accretion disks, thanks to significant progress in observational, theoretical and numerical studies. In this paper, we explore the alignment by RATs and provide quantitative predictions of dust polarization for a set of astrophysical environments that can be tested observationally. We first consider the alignment of grains in the local interstellar medium and compare predictions for linear polarization by aligned grains with recent observational data for nearby stars. We then revisit the problem of grain alignment in accretions disks by taking into account the dependence of RAT alignment efficiency on the anisotropic direction of radiation fields relative to magnetic fields. Moreover, we study the grain alignment in interplanetary medium, including diffuse Zodiacal cloud and cometary comae, and calculate the degree of circular polarization (CP) of scattered light arising from single scattering by aligned grains. We also discuss a new type of grain alignment, namely the alignment with respect to the ambient electric field instead of the alignment with the magnetic field. We show that this type of alignment can allow us to reproduce the systematic features of CP observed across a cometary coma. Our findings suggest that polarized Zodiacal dust emission may be an important polarized foreground component, which should be treated carefully in cosmic microwave background experiments.
arXiv comment26 pages, 15 figures, published in MNRAS
References in corpus (51)
- Infrared Emission from Interstellar Dust. IV. The Silicate-Graphite-PAH Model in the Post-Spitzer Era
- Spectral Energy Distributions of T Tauri Stars With Passive Circumstellar Disks
- Reconnection in a Weakly Stochastic Field
- Compressible Magnetohydrodynamic Turbulence: mode coupling, scaling relations, anisotropy, new regime and astrophysical implications
- The COBE Diffuse Infrared Background Experiment Search for the Cosmic Infrared Background: II. Model of the Interplanetary Dust Cloud
- MHD Turbulence Revisited
- Electric Dipole Radiation from Spinning Dust Grains
- Radiative torques: Analytical Model and Basic Properties
- Tracing Magnetic Fields with Aligned Grains
- Radiative Torques on Interstellar Grains: I. Superthermal Spinup
- Radiative Torques on Interstellar Grains: II. Grain Alignment
- SCUBA Polarization Measurements of the Magnetic Field Strengths in the L183, L1544, and L43 Prestellar Cores
- First Observations of the Magnetic Field Geometry in Pre-stellar Cores
- Radiative torque alignment: Essential Physical Processes
- Dust Dynamics in Compressible MHD Turbulence
- The Efficiency of Grain Alignment in Dense Interstellar Clouds: A Reassessment of Constraints from Near Infrared Polarization
- The initial conditions of isolated star formation. V: ISOPHOT imaging and the temperature and energy balance of pre-stellar cores
- On the efficiency of grain alignment in dark clouds
- Subsonic Mechanical Alignment of Irregular Grains
- Grain alignment induced by radiative torques: effects of internal relaxation of energy and complex radiation fields
- Grain Alignment by Radiation in Dark Clouds and Cores
- Comparison of spectral slopes of magnetohydrodynamic and hydrodynamic turbulence and measurements of alignment effects
- Magnetic Fields in Star-Forming Molecular Clouds. V. Submillimeter Polarization of the Barnard 1 Dark Cloud
- Grain Alignment and Polarized Emission from Magnetized T Tauri Disks
- Nuclear Spin Relaxation within Interstellar Grains
- Magnetization of cloud cores and envelopes and other observational consequences of reconnection diffusion
- Interferometric Mapping of Magnetic Fields in Star-forming Regions II. NGC2024 FIR5
- Polarization of Dust Emission in Clumpy Molecular Clouds and Cores
- Grain Acceleration by MHD Turbulence: Gyroresonance Mechanism
- Radiative torques alignment in the presence of pinwheel torques
- Magnetic Fields in Star-Forming Molecular Clouds I. The First Polarimetry of OMC-3 in Orion A
- Alignment of Dust with Magnetic Inclusions: Radiative Torques and Superparamagnetic Barnett and Nuclear Relaxation
- Barnett Relaxation in Thermally-Rotating Grains
- The Interstellar Magnetic Field Close to the Sun II
- The linear polarization of nearby bright stars measured at the parts per million level
- Thermal Flipping and Thermal Trapping -- New Elements in Dust Grain Dynamics
- Davis-Greenstein alignment of oblate spheroidal grains
- Stringent Limits on the Polarized Submillimeter Emission from Protoplanetary Disks
- Basic Properties of MHD Turbulence in the Inertial Range
- Constraint on the Polarization of Electric Dipole Emission from Spinning Dust
- Circular polarization in comets: Observations of Comet C/1999 S4 (LINEAR) and tentative interpretation
- Angle-dependent radiative grain alignment; Confirmation of a magnetic field - radiation anisotropy angle dependence on the efficiency of interstellar grain alignment
- Revisiting Acceleration of Charged Grains in Magnetohydrodynamic Turbulence
- Interstellar polarization and grain alignment: the role of iron and silicon
- Paramagnetic alignment of thermally rotating dust
- Interferometric Upper Limits on Millimeter Polarization of the Disks around DG Tau, GM Aur, and MWC 480
- Predictions of polarized dust emission from interstellar clouds: spatial variations in the efficiency of radiative torque alignment
- Simulations of polarized dust emission
- Tracing Magnetic Fields with Ground State Alignment
- Correlation between Interstellar Polarization and Dust Temperature: Alignment of Grains by Radiative Torques is Ubiquitous?
- Thermal Flipping of Interstellar Grains
Cited by in corpus (79)
- Magnetic Fields in Spiral Galaxies
- Polarimetry with the Gemini Planet Imager: Methods, Performance at First Light, and the Circumstellar Ring around HR 4796A
- Radiative transfer with POLARIS: I. Analysis of magnetic fields through synthetic dust continuum polarization measurements
- A unified model of grain alignment: radiative alignment of interstellar grains with magnetic inclusions
- Radiative grain alignment in protoplanetary disks: Implications for polarimetric observations
- Rotational Disruption of Dust Grains by Radiative Torques in Strong Radiation Fields
- Planck intermediate results. XXXIII. Signature of the magnetic field geometry of interstellar filaments in dust polarization maps
- Alignment of Irregular Grains by Mechanical Torques
- Dust polarized emission observations of NGC 6334; BISTRO reveals the details of the complex but organized magnetic field structure of the high-mass star-forming hub-filament network
- A dynamical constraint on interstellar dust models from radiative torque disruption
- Magnetic fields towards Ophiuchus-B derived from SCUBA-2 polarization measurements
- Grain alignment and disruption by radiative torques in dense molecular clouds and implication for polarization holes
- Charting the Interstellar Magnetic Field causing the Interstellar Boundary Explorer (IBEX) Ribbon of Energetic Neutral Atoms
- The JCMT BISTRO Survey: Magnetic Fields Associated with a Network of Filaments in NGC 1333
- Indirect evidence of significant grain growth in young protostellar envelopes from polarized dust emission
- Physical Model of Dust Polarization by Radiative Torque Alignment and Disruption and Implications for Grain Internal Structures
- Does HL Tau Disk Polarization in ALMA Band 3 Come from Radiatively Aligned Grains?
- On Internal and External Alignment of Dust Grains in Protostellar Environments
- Magnetic Properties of Dust Grains, Effect of Precession and Radiative Torque Alignment
- A statistical analysis of dust polarization properties in ALMA observations of Class 0 protostellar cores
- Paramagnetic alignment of small grains: a novel method for measuring interstellar magnetic fields
- Extragalactic Magnetism with SOFIA (Legacy Program) -- I: The magnetic field in the multi-phase interstellar medium of M51
- Alignment and rotational disruption of dust
- Modeling Grain Alignment by Radiative Torques and Hydrogen Formation Torques in Reflection Nebula
- Dust spectrum and polarisation at 850 um in the massive IRDC G035.39-00.33
- On the origins of polarization holes in Bok globules
- Magnetic fields in star forming systems (I): Idealized synthetic signatures of dust polarization and Zeeman splitting in filaments
- Properties and alignment of interstellar dust grains toward Type Ia Supernovae with anomalous polarization curves
- Models of Rosetta/OSIRIS 67P dust coma phase function
- A systematic study of radiative torque grain alignment in the diffuse interstellar medium
- Effects of grain alignment with magnetic fields on grain growth and the structure of dust aggregates
- Probing the cold magnetized Universe with SPICA-POL (B-BOP)
- Planck intermediate results. XLIV. The structure of the Galactic magnetic field from dust polarization maps of the southern Galactic cap
- Magnetic field structure of IC 63 and IC 59 associated to H II region - Sh 185
- Physical Modeling of Dust Polarization from Magnetically Enhanced Radiative Torque (MRAT) Alignment in Protostellar Cores with POLARIS
- B-fields And dust in interstelLar fiLAments using Dust POLarization (BALLAD-POL): I. The massive filament G11.11-0.12 observed by SOFIA/HAWC+
- Constraining the magnetic field properties of Bok globule B335 using SOFIA/HAWC+
- Magnetic field geometry of an unusual cometary cloud Gal 110-13
- Bok globule CB17: Polarization, extinction and distance
- Two modes of carbonaceous dust alignment
- The Mechanical Alignment of Dust (MAD) I: On the spin-up process of fractal grains by a gas-dust drift
- Probing the magnetic fields in L1415 and L1389
- Evidence for an interstellar dust filament in the outer heliosheath
- The relative orientation between local magnetic field and Galactic plane in low latitude dark clouds
- Study of magnetic field geometry and extinction in Bok globule CB130
- Magnetic fields in star-forming systems (II): examining dust polarization, the Zeeman effect, and the Faraday rotation measure as magnetic field tracers
- Variation of dust properties with cosmic time implied by radiative torque disruption
- Magnetic field geometry of the large globule CB 34
- Rotational Disruption of Porous Dust Aggregates due to Gas Flow in Protoplanetary Disks
- Is the mm/submm dust polarization a robust tracer of the magnetic field topology in protostellar envelopes? A model exploration
- Gamma-ray Burst Afterglows: Time-Varying Extinction, Polarization, and Colors due to Rotational Disruption of Dust Grains
- HI filaments as potential compass needles? Comparing the magnetic field structure of the Small Magellanic Cloud to the orientation of GASKAP-HI filaments
- The Mid-Infrared Polarization of the Herbig Ae Star WL 16: An Interstellar Origin?
- Rotational Disruption of Nonspherical Cometary Dust Particles by Radiative Torques
- Linear dust polarization during the embedded phase of protostar formation
- Synthetic observations of dust emission and polarisation of Galactic cold clumps
- A new method to suppress the bias in polarized intensity
- Physical conditions for dust grain alignment in Class 0 protostellar cores II. The role of the radiation field in models aligning/disrupting dust grains
- Study of grain alignment efficiency and a distance estimate for small globule CB4
- Synthetic dust polarization emission maps at 353 GHz for an observer placed inside a Local Bubble-like cavity
- Synthetic Modelling of Polarized Dust Emission in Intermediate-Mass YSOs: I: Constraining the Role of Iron Inclusions and Inelastic Relaxation on Grain Alignment with ALMA Polarization
- Alignment and Rotational Disruption of Dust Grains in the Galactic Centre Revealed by Polarized Dust Emission
- The magnetic fields around the cometary globules, L328, L323 and L331
- Effect of alignment on polarized infrared emission from polycyclic aromatic hydrocarbons
- Modelling Grain Rotational Disruption by Radiative Torques and Extinction of Active Galactic Nuclei
- Effect of Dust Rotational Disruption by Radiative Torques and Implications for F-corona decrease revealed by the Parker Solar Probe
- The radiative torque spin-up efficiency of ballistic dust grain aggregates
- On the dissipation of the rotation energy of dust grains in interstellar magnetic fields
- On planet formation around supermassive black holes and the grain disruption barriers by radiative torques
- Evolution of Dust and Water Ice in Cometary Comae by Radiative Torques
- The Dust Polarisation and Magnetic Field Structure in the Centre of NGC253 with ALMA
- Wavelength-dependent far-infrared polarization of HL Tau observed with SOFIA/HAWC+
- Polarized microwave emission from space particles in the upper atmosphere of the Earth
- Interplanetary Dust as a Foreground for the LiteBIRD CMB Satellite Mission
- Rotational Disruption of Dust and Ice by Radiative Torques in Protoplanetary Disks and Implications for Observations
- Time-Varying Extinction, Polarization, and Colors of Type Ia Supernovae due to Rotational Disruption of Dust Grains
- Effect of dust rotational disruption by radiative torques on radiation pressure feedback from massive protostars
- Constraining properties of dust formed in Wolf-Rayet binary WR 112 using mid-infrared and millimeter observations
- The role of radiative torques in the molecular cloud core L43