Einstein Telescope (ET) is a third-generation gravitational wave (GW) detector with tenfold better sensitivity compared to the advanced LIGO detectors. It will be capable of observing copious stellar mass binary black hole mergers up to a redshift of 10 which will make it especially useful for cosmography. We generate a mock gravitational wave event catalog for the Einstein Telescope and show the recoverability of either the Hubble constant ($H_0$) or the matter density parameter ($Ω_{\rm m}$). We present a simple, effective and fast technique for inferring $H_0$ (or $Ω_{\rm m}$) using the intrinsic chirp mass spectrum of black hole binaries, and investigate the efficacy of the method assuming the standard model of cosmology. If only $H_0$ has to be constrained, we find that at least one year of ET's observation will be required to achieve 1% uncertainty. With the same amount of observation, $Ω_{\rm m}$ can be constrained to within 4% uncertainty. With ET operating as a standalone instrument, we show that the GW spectral sirens detected by it can constrain the Hubble constant.
CoLoRe-2LPT: Lyman-$α$ mock catalogues for the validation of DESI cosmological analyses
CIEMAT;Institució Catalana de Recerca i Estudis Avançats(加泰罗尼亚高级研究学院);Institut de Física d’Altes Energies (IFAE)(高能物理研究所);The Barcelona Institute of Science and Technology(巴塞罗那科学技术研究院);Institut d’Astrophysique de Paris(巴黎天文研究所);IRFU, CEA, Université Paris-Saclay(法国原子能和替代能源委员会,巴黎萨克雷大学);Department of Physics, University of Oxford(牛津大学物理系);Lawrence Berkeley National Laboratory(劳伦斯伯克利国家实验室);Departamento de Astrofísica, Universidad de La Laguna (ULL)(拉帕尔马大学天体物理学系);Instituto de Astrofísica de Canarias(加那利群岛天体物理研究所);Department of Physics, Boston University(波士顿大学物理系)
Pushing spectral siren cosmology into the third-generation era: a blinded mock data challenge
Università di Bologna(博洛尼亚大学);INFN - Sezione di Bologna(意大利国家核物理研究所博洛尼分部);INAF - Osservatorio di Astrofisica e Scienza dello Spazio di Bologna(意大利国家天体物理研究所博洛尼亚天文与空间科学观测站);Aix-Marseille Université(艾克斯-马赛大学);Université de Toulon(土伦大学);CNRS, CPT(法国国家科学研究中心, cpt 中心);INFN, Sezione di Roma(意大利国家核物理研究所罗马分部);“Sapienza” Universitá di Roma(罗马大学);CNRS/IN2P3, CPPM(法国国家科学研究中心/法国粒子与核物理研究所,马赛质子与核物理中心)
Cosmology in the Einstein Telescope era: comparing traditional and simulation-based methods for population inference
SISSA(国际高等研究学院);INFN - Sezione di Trieste(意大利国家核物理研究所的里雅斯特分部);Instituto de Física Corpuscular (IFIC), CSIC-Universitat de València(瓦伦西亚大学/西班牙国家科学研究委员会粒子物理研究所);INAF - Osservatorio Astronomico di Roma(意大利国家天体物理研究所罗马天文台);INFN - Sezione di Roma(意大利国家核物理研究所罗马分部)
The road towards precision measurements of $H_0$ with bright sirens in the Einstein Telescope era
Sapienza University of Rome(罗马第一大学);INAF - Osservatorio Astronomico di Roma(意大利国家天体物理研究所罗马天文台);Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Roma(意大利国家核物理研究所罗马分部);Tor Vergata University of Rome(罗马托尔维加塔大学);Laboratoire Univers & Particules de Montpellier, CNRS & Université de Montpellier (UMR-5299)(蒙彼利埃宇宙与粒子实验室,法国国家科学研究中心与蒙彼利埃大学)