REVIEW
Short GRB and binary black hole standard sirens as a probe of dark energy
Astrophysics · Submitted 13 Jan 2006 · 39 references
Pith's verdict: A clean, checkable standard-siren forecast whose headline numbers are honestly tied to a hand-set beaming prior — worth refereeing and worth citing.
T0 · AI review
Why Pith says this
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Referee report
The paper
The paper claims
Gravitational waves from merging neutron stars could pin down dark energy without a cosmic distance ladder.
The reading
What carries the argument
The engine is a Fisher-matrix forecast over the eight parameters of a Newtonian inspiral waveform (distance, chirp mass, coalescence time and phase, sky direction, and the two angles of the orbital axis), summed over four detectors with their tabulated latitudes, longitudes, and arm orientations. Two technical moves carry the result: the parameter pair $D$ and $v = {n}cdot{L}$ is replaced by $(1+v)^2/D$ and $(1-v)^2/D$ to remove the singularity as the binary becomes face-on, and the Fisher matrix is inverted by singular value decomposition with eigenvalues below $10^{-10}$ of the largest zeroed, so the undefined position angle of the orbital axis does not spoil the inversion. A detection threshold of total signal-to-noise 7 (3.5 per detector, lowered from the usual 8.5 because the burst already fixes sky position and time) sets the horizon at $D_{max}=600$ Mpc for a $1.2 M_odot$ chirp mass.
Extended reading notes
Core claim
The central claim is a forecast: a network of ground-based gravitational-wave detectors, triggered by short gamma-ray bursts, can measure the Hubble constant to about 2% in a single year of observation, and — combined with the acoustic angular scale and the physical matter density from the cosmic microwave background — determine the dark energy equation of state $w$ to about 9%. The chain has three links. First, matched filtering of the inspiral waveform measures the luminosity distance $D$ with fractional error that the authors fit as $D/(4.4~{Gpc})$ for beamed sources and $D/(1.7~{Gpc})$ for randomly oriented ones. Second, the burst's electromagnetic localization removes the sky-position degeneracies that normally limit distance extraction, and the burst's host galaxy supplies the redshift. Third, because the distance is absolutely calibrated, even sources at $z<0.2$ constrain dark energy once the CMB fixes the distance to last scattering. The authors also report that 100 LISA-detected supermassive binary black hole inspirals, distributed in constant comoving density out to $z=2$, would give $w$ to 4%, competitive with a large supernova survey.
Load-bearing premise
The calculation assumes that short gamma-ray bursts are beamed along the binary's orbital angular momentum axis, so that seeing a burst means seeing the binary nearly face-on; that prior is what breaks the degeneracy between distance and inclination, and the authors state plainly that without it, losing detector sites badly degrades the distance determination.
Editorial extensions
If this is right
- A gravitational-wave network plus a gamma-ray satellite yields an absolute measurement of $H_0$ that does not pass through the supernova or Cepheid distance ladder, so it can cross-check local ladder determinations on completely different systematics.
- Because absolute distances at low redshift constrain dark energy only in combination with the CMB acoustic distance, the achievable $w$ error is floored by CMB precision: with 1% on $\Omega_m h^2$ the floor sits near 10%, so improving the CMB prior is as valuable as adding gravitational-wave sources.
- The forecast gives a concrete target for detector operations: keeping gamma-ray satellites such as Swift and HETE-2 alive into the era of advanced ground-based detectors is what makes the measurement possible at all.
- If supermassive black hole merger rates are at the high end of published estimates and a substantial fraction lie at $z<2$, LISA reaches $w$ at the few-percent level despite gravitational lensing noise.
- Gravitational-wave sirens are poor probes of clustering statistics compared with weak lensing or supernovae, but they can measure the one-point distribution of lensing magnification, which the authors suggest could discriminate among dark matter models.
Reading between the lines
- The beaming prior that drives the headline number is itself measurable: jet-break observations in short-burst afterglows, or a comparison of the gravitational-wave trigger rate with the observed burst rate, would replace the hand-chosen $\sigma_v = 0.05$ with a data-driven value and settle whether the 2% or the wider-jet scaling applies.
- Because the per-source distance error scales as $1/\mathrm{SNR}$ and the source count as volume, the $H_0$ error improves only as the square root of the maximum detectable distance; a third-generation detector with a few times the reach would cut the required observing time by an order of magnitude and loosen the dependence on the CMB prior.
- The same forecast implies a clean consistency test of the merger origin of short bursts: if they are neutron-star mergers, every well-localized burst within 600 Mpc should produce a coincident chirp, and the fraction that do not is a direct upper bound on the non-merger contribution to the short-burst population.
- Since the method returns an absolute distance and an independent redshift per event, the residual scatter about the Hubble law at low $z$ becomes a direct handle on peculiar velocities — the very noise term the authors fold in at 300 km/s — rather than merely a nuisance.
Original abstract
Observations of the gravitational radiation from well-localized, inspiraling compact object binaries can measure absolute source distances with high accuracy. When coupled with an independent determination of redshift through an electromagnetic counterpart, these standard sirens can provide an excellent probe of the expansion history of the Universe and the dark energy. Short gamma-ray bursts, if produced by merging neutron star binaries, would be standard sirens with known redshifts detectable by ground-based GW networks such as LIGO-II, Virgo, and AIGO. Depending upon the collimation of these GRBs, a single year of observation of their gravitational waves can measure the Hubble constant to about 2%. When combined with measurement of the absolute distance to the last scattering surface of the cosmic microwave background, this determines the dark energy equation of state parameter w to 9%. Similarly, supermassive binary black hole inspirals will be standard sirens detectable by LISA. Depending upon the precise redshift distribution, 100 sources could measure w at the 4% level.
The compiled record
The paper's own sentences, arranged, kept beside the review and separate from it. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.
The abstract, sentence by sentence
Observations of the gravitational radiation from well-localized, inspiraling compact object binaries can measure absolute source distances with high accuracy. When coupled with an independent determination of redshift through an electromagnetic counterpart, these standard sirens can provide an excellent probe of the expansion history of the Universe and the dark energy. Short gamma-ray bursts, if produced by merging neutron star binaries, would be standard sirens with known redshifts detectable by ground-based GW networks such as LIGO-II, Virgo, and AIGO. Depending upon the collimation of these GRBs, a single year of observation of their gravitational waves can measure the Hubble constant to about 2%. When combined with measurement of the absolute distance to the last scattering surface of the cosmic microwave background, this determines the dark energy equation of state parameter w to 9%. Similarly, supermassive binary black hole inspirals will be standard sirens detectable by LISA. Depending upon the precise redshift distribution, 100 sources could measure w at the 4% level.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | Observations of the gravitational radiation from well-localized, inspiraling compact object binaries can measure absolute source distances with high accuracy. | background 0.99 | 0.06 | 0.05 | asserted 0.91 |
| s1 | When coupled with an independent determination of redshift through an electromagnetic counterpart, these standard sirens can provide an excellent probe of the expansion history of the Universe and the dark energy. | background 0.81 | 0.06 | 0.26 | asserted 0.51 |
| s2 | Short gamma-ray bursts, if produced by merging neutron star binaries, would be standard sirens with known redshifts detectable by ground-based GW networks such as LIGO-II, Virgo, and AIGO. | method 0.47 | 0.08 | 0.08 | hedged possibility 0.89 |
| s3 | Depending upon the collimation of these GRBs, a single year of observation of their gravitational waves can measure the Hubble constant to about 2%. | result 0.94 | 0.24 | 0.14 | hedged possibility 0.61 |
| s4 | When combined with measurement of the absolute distance to the last scattering surface of the cosmic microwave background, this determines the dark energy equation of state parameter w to 9%. | result 0.89 | 0.20 | 0.27 | asserted 0.98 |
| s5 | Similarly, supermassive binary black hole inspirals will be standard sirens detectable by LISA. | contribution 0.39 | 0.08 | 0.05 | asserted 0.93 |
| s6 | Depending upon the precise redshift distribution, 100 sources could measure w at the 4% level. | result 0.94 | 0.24 | 0.21 | hedged possibility 0.72 |
What was examined, and what was not
- arXiv listing abstract v1
- full text
- figures and tables
- references and citing sentences
- relations to other papers
- P abstract
- S sections
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Figures
Showing 3 of the paper's 5 figures. See all figures in the PDF ↗ Figures reproduced from arXiv:astro-ph/0601275 by the authors.
References
How later papers used it
123 later papers cite it
3 later papers by other authors are listed below: 2 used its method or tool and 1 used its data or values.
Uses its method or tool 2 of 12 papers with this label
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Repeated its analysis assuming a gravitational-wave distance uncertainty of twice the distance over the signal-to-noise ratio, as done in this paper.
Lensing bias on cosmological parameters from bright standard sirens (2023) · 0.95 · paraphrased: the licence does not allow quoting
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Following Ref. [ref] , we estimate the SNR averaged over the extrinsic parameters (e.g., the source position in the sky) by the formula [equation] where $I_7$ and $A$ are given by [equation] The integration range $[, ]$ in Eq. [ref] is obtained below as a frequency evolution during the three-year observation of DECIGO.
Prospects of detection of subsolar mass primordial black hole and white dwarf binary mergers (2024) · Signal-to-noise ratio for the inspiraling WD-PBH binary · 0.96
Uses its data or values 1 of 2 papers with this label
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Used the noise power spectrum of the detectors giving Figure 1 in this paper.
Effective Search Templates for a Primordial Stochastic Gravitational Wave Background (2007) · 0.99 · paraphrased: the licence does not allow quoting
How the literature uses it
74 arXiv papers cite this in 89 sentences
Papers citing it · 53 sentences without a confident label
Uses its method or tool 7 papers
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However, following [ref] , we are assuming that the luminosity distance is measured with a statistical error that depends on the observational features of the Einstein Telescope.
Exploiting the Einstein Telescope to solve the Hubble tension · Mock Data · 0.83
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Finally, the instrumental error due to the parameter estimation from the matched filtering waveform is estimated as $Δd_L/d_L∼$ 1/SNR [ref] .
Space-borne atom interferometric gravitational wave detections. Part I. The forecast of bright sirens on cosmology · Construction of BNS bright sirens · 0.94
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Finally the instrumental error due to the parameter estimation from the matched filtering waveform, is estimated as 1/SNR [ref] .
Gravitational-Wave Detector Networks: Standard Sirens on Cosmology and Modified Gravity Theory · BNS standard sirens based on ground-based 2G HLVKI and 3G ET+2CE · 0.91
Uses its data or values 1 paper
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Then, we use the noise power spectrum of the detectors giving the Figure 1 in [ref] .
Effective Search Templates for a Primordial Stochastic Gravitational Wave Background · Sensitivity of LIGO II to stochastic background of GWs · 0.99
Cites it as background 26 papers
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The most straightforward way is represented by the so-called bright sirens [ref] , where the host galaxy is uniquely identified, and its redshift is measured electromagnetically.
Radio sirens: inferring $H_0$ with binary black holes and neutral hydrogen in the era of the Einstein Telescope and the SKA Observatory · Introduction · 0.89
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In the last decades, several papers have studied the possibility of using GW as standard sirens [ref] , especially in connection with future GW detectors such as the Einstein Telescope (ET) [ref] , a third-generation ground-based interferometers, and the Laser Interferometric Space Antenna (LISA) [ref] , a space mission designed to probe the GW landscape around the mHz region where the signal produced by massive black hole binaries (MBHBs) is expected to be the loudest [ref] .
Reconstructing the dark sector interaction with LISA · Introduction · 0.89
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If the redshift information could also be obtained by identifying electromagnetic (EM) counterparts (this type of standard sirens are typically referred to as “bright sirens”) or statistically from cross-matching of GW and galaxy catalogs (this type of standard sirens are typically referred to as “dark sirens”), the distance-redshift relation could be used to explore the expansion history of the universe, which is widely discussed in the literature [ref] .
Standard siren cosmology in the era of the 2.5-generation ground-based gravitational wave detectors: bright and dark sirens of LIGO Voyager and NEMO · Introduction · 0.88
Discussion
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