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Massimo Carpinelli (LNS)11/04/2019, 09:30Talk
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Micaela Morelli (Università di Cagliari)11/04/2019, 09:35Talk
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Emilio Carlo Molinari (INAF)11/04/2019, 09:40Talk
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Gilberto Saccorotti (Istituto Nazionale di Geofisica e Vulcanologia)11/04/2019, 09:45Talk
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Mariano Cadoni (CA)11/04/2019, 09:50Talk
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Alberto Masoni (CA)11/04/2019, 09:55Talk
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Michele Punturo (PG)11/04/2019, 10:00
The current activities of the ET project, the process for the formation of the collaboration, the ESFRI proposal activities, the ET roadmap and the worlwide scenario will be presented
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Cristiano Palomba (ROMA1)11/04/2019, 10:50Talk
An overview of the Science Case of Einstein Telescope is presented. The related activities for the preparation of the ET light Technical Design report are discussed
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Alessandro Ballone (Istituto Nazionale di Fisica Nucleare)11/04/2019, 11:20
Einstein Telescope will possibly observe mergers of binary black holes (BBHs) and binary neutron stars (BNSs) to redshift z≳10 and z≳2, respectively. Thus, we will be able to characterize the evolution of binary compact objects through cosmic history. Here, we show that constraining the merger rate density and mass evolution of BBHs across cosmic time is a powerful tool to shed...
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Prof. Colpi Monica (University of Milano Bicocca)11/04/2019, 11:40
Next-generation GW observations will uncover binary black holes throughout the entire Universe back to the beginning of star formation, and will detect new source types (if they exist) beyond stellar-mass binaries, such as intermediate-mass black holes. A number of key questions can be posed that will find an answer:
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1) What is the merger rate as a function of redshift to the beginning of the... -
Jan Harms (GSGC)11/04/2019, 12:00
Site characterization and environmental-noise modeling are important tasks in the preparation of the ET site-selection procedure. The site-evaluation parameters (SEP) group was created to (1) facilitate the exchange of data, software, and information between the site teams, (2) give guidance for high-quality sensor installations, (3) achieve uniformity between the analysis methods so that...
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Tomasz Bulik (University of Warsaw)11/04/2019, 12:20
We will present the seismic studies done at the Sos Enattos mine and also in two other sites: the Matra mine and the Canfranc underground laboratory. In each location we have deployed a set of 3d time synchronized seismometers for an extended period of time. We will describe the experimental setup in each location and present the preliminary analysis of the data as well as the microquake...
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Prof. Wolfango Plastino (Roma Tre University and INFN)11/04/2019, 12:40
The underground environment as well as all surrounding areas the facility which will host Einstein Telescope will have to be characterized for site selection, and after its building for monitoring all possible source of environmental noises. An overview of all physical-chemical processes affecting GW detectors in an underground environment is considered, particularly by: a) seismic...
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Gilberto Saccorotti (Istituto Nazionale di Geofisica e Vulcanologia)11/04/2019, 14:30
The background seismic vibrations of either natural or anthropogenic origin are generally dominated by surface Rayleigh waves, whose amplitude rapidly decrease with depth. As a consequence, underground sites offer the most favourable conditions for a low-noise environment. In this study, we provide an assessment of the ground vibrations at the dismissed Sos Enattos mines (Sardinia, Italy), one...
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Maria Marsella (Dipartimento di Ingegneria Civile e Ambientale, Università di Roma Sapienza, Roma, Italy)11/04/2019, 14:50
The construction of the underground facilities to host Archimedes experiment poses some challenges for meeting the requirements on the suitable materials to reinforce the rock cavity and build the experimental room. Further constraints are linked to the operational conditions for accessing the site and allowing a safe installation and relocation of the experimental apparatus. Efficient...
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Andrea Paoli (EGO)11/04/2019, 15:10
A preliminary study to identify the potential location of the ET Sardinia and the geometry of the underground tunnels based on available geological data and in-situ surveys was conducted. Different geometry configurations (Triangle and L-Topology) have been analysed using digital terrain models and deformation data from satellite data in order to investigate the present conditions at the...
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Frank LINDE (Nikhef - APPEC)11/04/2019, 15:30
The 2011 ET Conceptual Design Report identified the EUregion Meuse-Rhin –the Belgium-Dutch-German border region– as a potential site for Einstein Telescope. This presentation will give an update of the drilling activity to assess the seismic noise and the plans towards a broader geological study. Other issues like a recently published socio-economic impact study, new gravitational-waves...
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Harald Lueck (AEI Hannover (MPI f. gravitational Physics / Inst. f. Grav.physics Leibniz Uni Hannover))11/04/2019, 15:40
This presentation will give an overview of technologies needed for 3G detectors, indicate levels of readiness and possible roadmaps.
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Prof. Stefan Hild (University of Glasgow)11/04/2019, 16:00
This talk will give an overview of the short- and long-term plans for the Maastricht 3G prototype interferometer (aka ETpathfinder). The key aims are to test the interplay of 'new' material (silicon), 'new' temperatures (120K and 10K) and 'new' wavelengths (1550nm and 2um) on systems level in a GW detector like environment and at low phase noise.
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Francesca Badaracco (GSSI), Jan Harms (GSGC)11/04/2019, 16:20
Terrestrial gravity noise, also known as Newtonian noise (NN), will be a significant low-frequency noise contribution in present and future-wave detectors. Lowering this kind of noise is important since it will allow us to explore the existence of intermediate black holes and improve estimation of source parameters.
Current research focuses on NN from seismic fields. So far, only the...
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Dr Iain Martin (University of Glasgow)11/04/2019, 16:40
Recent work has shown that cryopumping effects between the room-temperature and cryogenic vacuum ducts in a cryogenic gravitational-wave detector can result in the growth of a layer of ice on a cryogenic test mass. Work by Kagra colleagues has examined the effect of this ice layer on quantum noise. Here, we consider the thermal noise implications of a growing ice layer. We show that the...
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11/04/2019, 17:00
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Prof. Luca Deidda (UNISS)11/04/2019, 17:40
We develop a systematic analysis of the sources of economic impact associated with construction and operating phases of the ET research infrastructure. Specifically, based on a I-O technique we evaluate the direct and induced impact of ET in terms of total output, value added and employment effects. We also briefly discuss and analyse other types of impact including so called social effects.
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11/04/2019, 18:00
Discussion on the ET collaboratio, ESFRI roadmap and ET sites
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Michele Maggiore12/04/2019, 08:30
Third-generation GW detectors will detect standard sirens up to cosmological distances. This will allow us to explore the dark-energy sector of generic modifications of General Relativity. In the dark energy sector a well-know observable is the equation of state of dark energy. However, its determination with ET (and with LISA) is not expected to be significantly better than what can...
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Angelo Ricciardone (Istituto Nazionale di Fisica Nucleare)12/04/2019, 08:50
Gravitational Waves (GWs) represent a unique tool to explore the physics and the microphysics of the universe. After the GW direct detections by the LIGO/Virgo collaboration the next target of modern cosmology is the detection of primordial GWs. Even if the main probe of primordial GWs has been so far considered the Cosmic Microwave Background, we will see in this talk how we can extract...
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Dr Lorenzo Amati (INAF - OAS Bologna)12/04/2019, 09:10
The Transient High-Energy Sky and Early Universe Surveyor (THESEUS) is a space mission concept currently under Phase A study by ESA as candidate M5 mission, aiming at exploiting Gamma-Ray Bursts for investigating the early Universe and at providing a substantial advancement of multi-messenger and time-domain astrophysics. Through an unprecedented combination of X-/gamma-rays monitors, an...
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Dr Valeria Sequino (INFN sez. Genova )12/04/2019, 09:30
Squeezed light injection, as a method for the reduction of quantum noise, has been already demonstrated in the interferometric GW detectors GEO and LIGO . Recently also Advanced Virgo implemented this solution, and it will join the next observation run (O3), with frequency independent squeezed vacuum injected. This will allow a reduction of the shot noise, which is due to the quantum phase...
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Francesco Puosi (Istituto Nazionale di Fisica Nucleare)12/04/2019, 09:50
In interferometric gravitational wave detectors, thermal noise from the mirrors represents currently the major limitation in most of the detection band. It originates from mechanical dissipation, which is rather low in the substrates, but orders of magnitude higher in the coating films. Although a significant experimental effort has led to some improvements during these years, there is still a...
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C. Di Giorgio12/04/2019, 10:10
The University of Sannio and the University of Salerno joined forces to develop advanced optical coatings for 3G gravitational wave detectors.
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We own a fully programmable plasma-assisted e-beam optical-coating deposition system with sub-nm accuracy/repeatability, using up to 6 different materials in a single batch, and state-of-the-art thin-film characterization facilities including AFM, STM,... -
Ms Chiara Di Fronzo12/04/2019, 15:00
Ground-based detectors are strongly limited at low frequencies [5 - 30 Hz]. Unlocking these frequencies requires the development of new technologies, and will allow terrestrial detection of new, and more distant sources. Additionally, source localisation and forewarning will provide opportunities for spectacular multi-messenger observations.
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We propose a new kind of inertial isolation system... -
Ms Neha Singh (Astronomical Observatory, University of Warsaw )12/04/2019, 15:05
Abstract
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Einstein Telescope is a proposed third-generation gravitational wave detector
which is expected to have an increased broadband sensitivity by a factor of 10
with respect to advanced detectors while also extending the low frequency sen-
sitivity of ground based gravitational wave interferometers below 10 Hz. Grav-
itational wave observations using a network of detectors permits a... -
Mr Leonardo Vargiu (UNISS)12/04/2019, 15:10Poster
We present the estimates of the impacts related to the construction and operating phases of the Einstein Telescope (ET) research facility. Precisely, we provide estimates of the total output, value added and employment impacts of ET as well as some preliminary estimates of social impact.
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Dr Alessandro Longo (INFN Roma Tre)12/04/2019, 15:15
A tool for time series analysis based on adaptive methodologies such as Empirical Mode Decomposition (EMD) and its time varying version tvf-EMD, has been developed and applied to characterise seismometer data monitoring Virgo North End Building (NEB) recording during four different acoustic noise injections. The tool quantifies the trend/baseline wandering eventually present in the data and...
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Peter Ván (MTA Wigner RCP)12/04/2019, 15:20
The selection of sites for underground gravitational wave detectors based on spectral and cumulative characterization of the low frequency seismic noise. The evaluation of the collected long term seismological data in the Mátra Gravitational and Geophysical Laboratory revealed several drawbacks of the previously established characteristics. Here we demonstrate the problematic aspects of the...
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Stefano Cuccuru (Università di Sassari)12/04/2019, 15:25
Sardinia ET project involves the realization of an underground infrastructure with two possible geometrical arrays which develop along approximately 30 km of tunnel. The site is near Sos Enattos mine (North-eastern Sardinia), where currently physics laboratories are already active.
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The positioning and orientation of the infrastructure and the relative tunnel tracks were chosen taking into... -
Gianpietro Cagnoli (ILM-UCBL)12/04/2019, 15:30
There are no other large instruments that are limited so much by availability of materials like the Earth based GW detectors. Thermal noise and optical absorption in mirrors and their suspensions are a strong limiting factor for future upgrades of existig detectors and also in new projects like Einstein Telescope. A new group at the Insitut Lumière Matière, Lyon, has been formed with the aim...
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Viviana Fafone (ROMA2)12/04/2019, 15:35
Wave-front aberrations in the core optics of interferometric gravitational waves detectors can represent a strong limitation to their operation and sensitivity. These aberrations are due to intrinsic defects in the optics (surface figure errors and refraction index inhomogeneity) and to the rise of thermal effects, i.e. optical power absorption in the substrate and coatings of the test masses...
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Enrico Calloni (Dipartimento di Fisica, Università di Napoli Federico II, Napoli, Italy; INFN Sezione di Napoli, Napoli, Italy)ET technologyPoster
The Archimedes experiment is devoted to the measurement of the interaction of vacuum fluctuations and gravity throught the use of a criogenic balance to be placed in the undergriound site of Sos-Enattos, in the SAR-GRAV laboratory. The measurement consists in weighing the condensation energy of stratified type II superconductors, like YBCO, around the transition temperature. The need of a...
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