UVMag: stellar formation, evolution, structure and environment with space UV and visible spectropolarimetry
arXiv:1407.2868 · doi:10.1007/s10509-014-2050-4
Abstract
Important insights into the formation, structure, evolution and environment of all types of stars can be obtained through the measurement of their winds and possible magnetospheres. However, this has hardly been done up to now mainly because of the lack of UV instrumentation available for long periods of time. To reach this aim, we have designed UVMag, an M-size space mission equipped with a high-resolution spectropolarimeter working in the UV and visible spectral range. The UV domain is crucial in stellar physics as it is very rich in atomic and molecular lines and contains most of the flux of hot stars. Moreover, covering the UV and visible spectral domains at the same time will allow us to study the star and its environment simultaneously. Adding polarimetric power to the spectrograph will multiply tenfold the capabilities of extracting information on stellar magnetospheres, winds, disks, and magnetic fields. Examples of science objectives that can be reached with UVMag are presented for pre-main sequence, main sequence and evolved stars. They will cast new light onto stellar physics by addressing many exciting and important questions. UVMag is currently undergoing a Research and Technology study and will be proposed at the forthcoming ESA call for M-size missions. This spectropolarimeter could also be installed on a large UV and visible observatory (e.g. NASA's LUVOIR project) within a suite of instruments.
Accepted in ApSS's special volume on UV astronomy
References in corpus (78)
- The evolution of rotating stars
- Global-Scale Turbulent Convection and Magnetic Dynamo Action in the Solar Envelope
- Large-scale magnetic topologies of late M dwarfs
- Photoevaporation of Circumstellar Disks by FUV, EUV and X-ray Radiation from the Central Star
- Evolution of low-mass star and brown dwarf eclipsing binaries
- Stable magnetic fields in stellar interiors
- Accretion-powered Stellar Winds as a Solution to the Stellar Angular Momentum Problem
- Simulations of dynamo action in fully convective stars
- Large-scale magnetic topologies of early M dwarfs
- Metals in the Exosphere of the Highly Irradiated Planet WASP-12b
- Weak magnetic fields in Ap/Bp stars: Evidence for a dipole field lower limit and a tentative interpretation of the magnetic dichotomy
- Stellar Lyman-alpha Emission Lines in the Hubble Space Telescope Archive: Intrinsic Line Fluxes and Absorption from the Heliosphere and Astrospheres
- Protoplanetary disc evolution and dispersal: the implications of X-ray photoevaportion
- Accretion Rates in Herbig Ae stars
- A Magnetic Confinement vs. Rotation Classification of Massive-Star Magnetospheres
- Dynamical Simulations of Magnetically Channeled Line-Driven Stellar Winds: III. Angular Momentum Loss and Rotational Spindown
- Large-scale alpha^2-dynamo in low-mass stars and brown dwarfs
- The Effect of Tidal Inflation Instability on the Mass and Dynamical Evolution of Extrasolar Planets with Ultra-Short Periods
- Dynamo Action in the Solar Convection Zone and Tachocline: Pumping and Organization of Toroidal Fields
- Can we predict the global magnetic topology of a pre-main sequence star from its position in the Hertzsprung-Russell diagram?
- Radius Dependent Angular Momentum Evolution in Low-Mass Stars. I
- Early UV Ingress in WASP-12b: Measuring Planetary Magnetic Fields
- Evolutionary state of magnetic chemically peculiar stars
- Accretion-Powered Stellar Winds II: Numerical Solutions for Stellar Wind Torques
- X-ray irradiated protoplanetary disk atmospheres II: Predictions from models in hydrostatic equilibrium
- The stable magnetic field of the fullly-convective star V374 Peg
- Formation of massive stars by growing accretion rate
- Modelling of isolated radio pulsars and magnetars on the fossil field hypothesis
- Searching for links between magnetic fields and stellar evolution. II. The evolution of magnetic fields as revealed by observations of Ap stars in open clusters and associations
- WASP-12b as a prolate, inflated and disrupting planet from tidal dissipation
- H2 formation and excitation in the diffuse interstellar medium
- Accretion rates and accretion tracers of Herbig Ae/Be stars
- New observations of the extended hydrogen exosphere of the extrasolar planet HD209458b
- The Rigidly Rotating Magnetosphere of Sigma Ori E
- The stellar wind cycles and planetary radio emission of the Tau Boo system
- Mass Transfer, Transiting Stream and Magnetopause in Close-in Exoplanetary Systems with Applications to WASP-12
- A Correlation Between Pre-Main Sequence Stellar Rotation Rates and IRAC Excesses in Orion
- Massive star models with magnetic braking
- Radiative hydrodynamics simulations of red supergiant stars: II. simulations of convection on Betelgeuse match interferometric observations
- The Mouse that Roared: A Superflare from the dMe Flare Star EV Lac detected by Swift and Konus-Wind
- C2D Spitzer-IRS spectra of disks around T Tauri stars. IV. Crystalline silicates
- Surface magnetic fields on two accreting T Tauri stars: CV Cha and CR Cha
- Magnetic Activity Cycles in the Exoplanet Host Star epsilon Eridani
- Testing the Disk Regulation Paradigm with Spitzer Observations. II. A Clear Signature of Star-Disk Interaction in NGC 2264 and the Orion Nebula Cluster
- Powerful Winds from Low-Mass Stars: V374 Peg
- Turbulence-driven Polar Winds from T Tauri Stars Energized by Magnetospheric Accretion
- What controls the magnetic geometry of M dwarfs?
- Disk and wind interaction in the young stellar object MWC 297 spatially resolved with VLTI/AMBER
- The shocking transit of WASP-12b: Modelling the observed early ingress in the near ultraviolet
- Discovery of Rotational Braking in the Magnetic Helium-Strong Star Sigma Orionis E
- Centrifugal Breakout of Magnetically Confined Line-Driven Stellar Winds
- Hot Stars in Globular Cluster - A Spectroscopist's View
- Prospects for Detection of Exoplanet Magnetic Fields Through Bow-Shock Observations During Transits
- A dynamical magnetosphere model for periodic Halpha emission from the slowly rotating magnetic O star HD191612
- A Rigid-Field Hydrodynamics approach to modeling the magnetospheres of massive stars
- Testing Models of Accretion-driven Coronal Heating and Stellar Wind Acceleration for T Tauri Stars
- Spin Evolution of Accreting Young Stars. I. Effect of Magnetic Star-Disk Coupling
- Global 3D Simulations of Disc Accretion onto the classical T Tauri Star V2129 Oph
- Tidal Heating Models for the Radii of the Inflated Transiting Giant Planets WASP-4b, WASP-6b, WASP-12b, and TrES-4
- Magnetism and binarity of the Herbig Ae star V380 Ori
- Systematic detection of magnetic fields in massive, late-type supergiants
- Weak and Strong Field Dynamos: from the Earth to the stars
- Magnetospheric Gap and Accumulation of Giant Planets Close to the Star
- No detection of large-scale magnetic fields at the surfaces of Am and HgMn stars
- Evolution of X-ray and FUV Disk-Dispersing Radiation Fields
- Direct observation of magnetic cycles in Sun-like stars
- A compact and robust method for full Stokes spectropolarimetry
- Magnetic fields and chemical peculiarities of the very young intermediate-mass binary system HD 72106
- Search for surface magnetic fields in Mira stars. First detection in chi Cyg
- Relations between dynamo-region geometry and the magnetic behavior of stars and planets
- Turbulent Dynamo in Asymptotic Giant Branch Stars
- Global 3D Simulations of Disc Accretion onto the classical T Tauri Star BP Tauri
- Testing magnetically confined wind shock models for Beta Cep using XMM-Newton and Chandra phase-resolved X-ray observations
- Dynamics of the circumstellar gas in the Herbig Ae stars BF Orionis, SV Cephei, WW Vulpeculae and XY Persei
- Direct detection of a magnetic field in the photosphere of the single M giant EK Boo: How common is magnetic activity among M giants?
- Observational limits on the spin-down torque of Accretion Powered Stellar Winds
- X-Ray Determination of the Variable Rate of Mass Accretion onto TW Hydrae
- Radio Emissions from Substellar Companions of Evolved Cool Stars
Cited by in corpus (5)
- XUV-driven mass loss from extrasolar giant planets orbiting active stars
- Finding the UV-Visible Path Forward: Proceedings of the Community Workshop to Plan the Future of UV/Visible Space Astrophysics
- Static spectropolarimeter concept adapted to space conditions and wide spectrum constraints
- UV Spectropolarimetry with Polstar: Protoplanetary Disks
- The UVMag space project: UV and visible spectropolarimetry of massive stars