eLISA: Astrophysics and cosmology in the millihertz regime

Abstract

This document introduces the exciting and fundamentally new science and astronomy that the European New Gravitational Wave Observatory (NGO) mission (derived from the previous LISA proposal) will deliver. The mission (which we will refer to by its informal name "eLISA") will survey for the first time the low-frequency gravitational wave band (about 0.1 mHz to 1 Hz), with sufficient sensitivity to detect interesting individual astrophysical sources out to z = 15. The eLISA mission will discover and study a variety of cosmic events and systems with high sensitivity: coalescences of massive black holes binaries, brought together by galaxy mergers; mergers of earlier, less-massive black holes during the epoch of hierarchical galaxy and black-hole growth; stellar-mass black holes and compact stars in orbits just skimming the horizons of massive black holes in galactic nuclei of the present era; extremely compact white dwarf binaries in our Galaxy, a rich source of information about binary evolution and about future Type Ia supernovae; and possibly most interesting of all, the uncertain and unpredicted sources, for example relics of inflation and of the symmetry-breaking epoch directly after the Big Bang. eLISA's measurements will allow detailed studies of these signals with high signal-to-noise ratio, addressing most of the key scientific questions raised by ESA's Cosmic Vision programme in the areas of astrophysics and cosmology. They will also provide stringent tests of general relativity in the strong-field dynamical regime, which cannot be probed in any other way. This document not only describes the science but also gives an overview on the mission design and orbits.

Submitted to GW Notes; abstract abridged due to arXiv requirements

References in corpus (63)

• The Confrontation between General Relativity and Experiment
• A Semi-Analytic Model for the Co-evolution of Galaxies, Black Holes, and Active Galactic Nuclei
• Formation of Supermassive Black Holes by Direct Collapse in Pregalactic Halos
• Gravitational Wave Production by Collisions: More Bubbles
• Intermediate and Extreme Mass-Ratio Inspirals -- Astrophysics, Science Applications and Detection using LISA
• A Compact Supermassive Binary Black Hole System
• A massive binary black-hole system in OJ287 and a test of general relativity
• Massive black hole binary mergers within sub-pc scale gas discs
• Supermassive recoil velocities for binary black-hole mergers with antialigned spins
• Starbursts near supermassive black holes: young stars in the Galactic Center, and gravitational waves in LISA band
• Rapid Formation of Supermassive Black Hole Binaries in Galaxy Mergers with Gas
• Formation of the first nuclear clusters and massive black holes at high redshift
• How to tell a gravastar from a black hole
• High-accuracy waveforms for binary black hole inspiral, merger, and ringdown
• How Mergers May Affect The Mass Scaling Relations Between Black Holes, Galaxies, and Other Gravitationally Bound Systems
• Gravitational waves from resolvable massive black hole binary systems and observations with Pulsar Timing Arrays
• Are black holes in alternative theories serious astrophysical candidates? The case for Einstein-Dilaton-Gauss-Bonnet black holes
• Gravitational wave snapshots of generic extreme mass ratio inspirals
• Supermassive black hole binaries in gaseous and stellar circumnuclear discs: orbital dynamics and gas accretion
• A stochastic background of gravitational waves from hybrid preheating
• Ejection of Supermassive Black Holes from Galaxy Cores
• The Redshift Evolution of Wet, Dry, and Mixed Galaxy Mergers from Close Galaxy Pairs in the DEEP2 Galaxy Redshift Survey
• On the final spin from the coalescence of two black holes
• A Candidate Sub-Parsec Supermassive Binary Black Hole System
• Matched-filtering and parameter estimation of ringdown waveforms
• High-spin binary black hole mergers
• Fuelling Active Galactic Nuclei
• Black Holes in Pseudobulges and Spheroidals: A Change in the Black Hole-Bulge Scaling Relations at Low Mass
• Bumpy Black Holes in Alternate Theories of Gravity
• Black-Hole Spin and Galactic Morphology
• Cosmic Evolution of Black Holes and Spheroids. II: Scaling Relations at z=0.36
• Probing the non-linear structure of general relativity with black hole binaries
• Extreme- and Intermediate-Mass Ratio Inspirals in Dynamical Chern-Simons Modified Gravity
• Reconstructing the massive black hole cosmic history through gravitational waves
• Gravitational wave bursts from cosmic (super)strings: Quantitative analysis and constraints
• Self consistent model for the evolution of eccentric massive black hole binaries in stellar environments: implications for gravitational wave observations
• Observable Signatures of a Black Hole Ejected by Gravitational Radiation Recoil in a Galaxy Merger
• The final spin from the coalescence of aligned-spin black-hole binaries
• The Distribution of Recoil Velocities from Merging Black Holes
• The influence of the hydrodynamic drag from an accretion torus on extreme mass-ratio inspirals
• Growing Massive Black Hole Pairs in Minor Mergers of Disk Galaxies
• Perturbed Kerr Black Holes can probe deviations from General Relativity
• Prospects for direct detection of primordial gravitational waves
• The Collision Between The Milky Way And Andromeda
• LISA extreme-mass-ratio inspiral events as probes of the black hole mass function
• Probing black holes at low redshift using LISA EMRI observations
• The Effect of Massive Perturbers on Extreme Mass-Ratio Inspiral Waveforms
• Gravitational waves from Extreme Mass Ratio Inspirals in non-pure Kerr spacetimes
• Kinematics of the ultra-compact helium accretor AM Canum Venaticorum
• Supermassive black holes or boson stars? Hair counting with gravitational wave detectors
• The Anisotropic Spatial Distribution of Hypervelocity Stars
• MCMC Exploration of Supermassive Black Hole Binary Inspirals
• Modeling maximum astrophysical gravitational recoil velocities
• Star Clusters Around Recoiled Black Holes in the Milky Way Halo
• Gravitational wave signatures from kink proliferation on cosmic (super-) strings
• A Constrained Metropolis-Hastings Search for EMRIs in the Mock LISA Data Challenge 1B
• Imprints of recoiling massive black-holes on the hot gas of early type galaxies
• Simulations of Recoiling Massive Black Holes in the Via Lactea Halo
• The Final Merger of Black-Hole Binaries
• Non-dissipative tidal synchronization in accreting binary white dwarf systems
• A brief survey of LISA sources and science
• Models of mass segregation at the Galactic centre
• Gravitational waves from coalescing massive black holes in young dense clusters

Cited by in corpus (51)

• Gravitational-wave sensitivity curves
• The Evolution of Compact Binary Star Systems
• Gravitational Wave Tests of General Relativity with Ground-Based Detectors and Pulsar Timing Arrays
• The Effective Field Theorist's Approach to Gravitational Dynamics
• Science with the space-based interferometer LISA. IV: Probing inflation with gravitational waves
• Cosmological Backgrounds of Gravitational Waves and eLISA/NGO: Phase Transitions, Cosmic Strings and Other Sources
• Extreme Gravity Tests with Gravitational Waves from Compact Binary Coalescences: (II) Ringdown
• Testing General Relativity with Low-Frequency, Space-Based Gravitational-Wave Detectors
• IndIGO and LIGO-India: Scope and Plans for Gravitational Wave Research and Precision Metrology in India
• Graviton Mass Bounds
• A Second Higgs Doublet in the Early Universe: Baryogenesis and Gravitational Waves
• Editorial for the Special Issue 100 Years of Chronogeometrodynamics: The Status of the Einstein's Theory of Gravitation in Its Centennial Year
• Numerical Relativity and Astrophysics
• Gravitational Waves from a Particle in Circular Orbits around a Schwarzschild Black Hole to the 22nd Post-Newtonian Order
• Rapid Orbital Decay in the 12.75-minute WD+WD Binary J0651+2844
• Gravitational waveforms in scalar-tensor gravity at 2PN relative order
• Search for Supermassive Black Hole Binaries in the Sloan Digital Sky Survey Spectroscopic Sample
• Gravitational waves from the electroweak phase transition
• Primordial gravitational waves in supersolid inflation
• Distinctive signatures of space-time diffeomorphism breaking in EFT of inflation
• Scientific Potential of DECIGO Pathfinder and Testing GR with Space-Borne Gravitational Wave Interferometers
• The Limitations of Optical Spectroscopic Diagnostics in Identifying AGNs in the Low Mass Regime
• Gravitational wave energy spectrum of hyperbolic encounters
• Gravitational wave sources in the era of multi-frequency gravitational wave astronomy
• Ripple effects & oscillations in the broad FeKa line as a probe of massive black hole mergers
• Topological Stars, Black holes and Generalized Charged Weyl Solutions
• The Transient Gravitational-Wave Sky
• What can we learn from the stochastic gravitational wave background produced by oscillons?
• Observing the Galaxy's massive black hole with gravitational wave bursts
• Forecast constraints on cosmic strings from future CMB, pulsar timing and gravitational wave direct detection experiments
• Quiescent and active galactic nuclei as factories of merging compact objects in the era of gravitational-wave astronomy
• Stochastic Background of Gravitational Waves from Fermions -- Theory and Applications
• Gravitational Waves in Bouncing Cosmologies from Gauge Field Production
• Statistically Anisotropic Tensor Modes from Inflation
• Pre-Explosive Observational Properties of Type Ia Supernovae
• Prospects for observing ultra-compact binaries with space-based gravitational wave interferometers and optical telescopes
• Secular Dynamical Anti-Friction in Galactic Nuclei
• Astrophysical black holes as natural laboratories for fundamental physics and strong-field gravity
• Improved calculation of the gravitational wave spectrum from kinks on infinite cosmic strings
• Disformal transformations on the CMB
• Decihertz gravitational waves from double white dwarf merger remnants
• Deep space experiment to measure $G$
• Radial oscillations of boson stars made of ultralight repulsive dark matter
• Probing the formation of the seeds of supermassive black holes with gravitational waves
• Primordial gravitational waves from the space-condensate inflation model
• The Effect of Mission Duration on LISA Science Objectives
• The Classical Harmonic Vibrations of the Atomic Centers of Mass with Micro Amplitudes and Low Frequencies Monitored by the Entanglement between the Two Two-level Atoms in a Single mode Cavity
• The Influence of the Shear on the Gravitational Waves in the Early Anisotropic Universe
• Double hybrid inflation and gravitational waves
• Power spectrum of gravitational waves from unbound compact binaries
• Unifying an asymmetric bounce to the dark energy in Chern-Simons F(R) gravity