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Calculation of thermal noise in grating reflectors
D. Heinert, S. Kroker, D. Friedrich, S. Hild, E.-B. Kley, s. Leavey, I. W. Martin, A. Tünnermann, S.
P. Vyatchanin, K. Yamamoto
Phys. Rev. D 88 (2013) 042001

10.1103/PhysRevD.88.042001


Cryogenic and room temperature strength of sapphire jointed by hydroxide-catalysis bonding
R. Douglas, A. A. van Veggel, L. Cunningham, K. Haughian, J. Hough, S. Rowan
Classical and Quantum Gravity 31 (2014) 4 5001

10.1088/0264-9381/31/4/045001


Evaluation of heat extraction through sapphire fibers for the GW observatory KAGRA
A. Khalaidovski, G. Hofmann, D. Chen, J. Komma. C. Schwarz, C. Tokoku, N. Kimura, T. Suzuki,
A. O. Scheie, E. Majorana, R. Nawrodt, K. Yamamoto
Class. Quant. Gravity, 31, 105004 (2014). arXiv:1401.2346 [astro-ph.IM]

10.1088/0264-9381/31/10/105004


UNDERGROUND GRAVITATIONAL WAVE OBSERVATORIES: KAGRA AND ET
M. Punturo, K. Somiya
Int. J. Mod. Phys. D 22, 1330010 (2013), DOI: 10.1142/S0218271813300103

10.1142/S0218271813300103

 

A vertical accelerometer for cryogenics implementation in third-generation gravitational-wave detector
F. Frasconi, E. Majorana, L. Naticchioni, F. Paoletti and M. Perciballi
Meas. Sci. Technol. 25 (2014) 015103 (9pp)

doi:10.1088/0957-0233/25/1/015103

 

Vibration measurement in the KAGRA cryostat
D. Chen, L. Naticchioni, A. Khalaidovski, K. Yamamoto, E. Majorana, Y. Sakakibara, C. Tokoku, T. Suzuki,
N. Kimura, S. Koike, T. Uchiyama and S. Kawamura
Class. Quantum Grav. 31 (2014) 224001 (12pp)

doi:10.1088/0264-9381/31/22/224001

 

Fluctuation Dissipation at Work: Thermal Noise in Reflective Optical Coatings for GW Detectors
D. Heinert, G. Hofmann, R. Nawrodt
Metrology for Aerospace (MetroAeroSpace), 2014 IEEE, 293-298
http://dx.doi.org/10.1109/MetroAeroSpace.2014.6865937

 

The Einstein Telescope
S. Kroker, R. Nawrodt
Metrology for Aerospace (MetroAeroSpace), 2014 IEEE, 288-292
http://dx.doi.org/10.1109/MetroAeroSpace.2014.6865936

 

Mechanical loss of a multilayer tantala/silica coating on a sapphire disk at cryogenic temperatures: Towards the KAGRA gravitational wave detector
E. Hirose, K. Craig, H. Ishitsuka, I. W. Martin, N. Mio, S. Moriwaki, P. G. Murray, M. Ohashi, S. Rowan, Y. Sakakibara, T. Suzuki, K. Waseda, K. Watanabe, K. Yamamoto
Phys. Rev. D 90 (2014) 102004
http://dx.doi.org/10.1103/PhysRevD.90.102004


Thickness-dependent crystallization on thermal anneal for titania/silica nm-layer composites deposited by ion beam sputter method
Huang-Wei Pan, Shun-Jin Wang, Ling-Chi Kuo, Shiuh Chao, Maria Principe, Innocenzo M. Pinto, and Riccardo DeSalvo »View Author Affiliations
Optics Express, Vol. 22, Issue 24, 29847-29854 (2014)
http://dx.doi.org/10.1364/OE.22.029847

 

Material loss angles from direct measurements of broadband thermal noise
Maria Principe, Innocenzo M. Pinto, Vincenzo Pierro, Riccardo DeSalvo, Ilaria Taurasi, Akira E. Villar, Eric D. Black, Kenneth G. Libbrecht, Christophe Michel, Nazario Morgado, and Laurent Pinard
Phys. Rev. D 91, 022005 – Published 23 January 2015
http://dx.doi.org/10.1103/PhysRevD.91.022005

 

Minimum Noise Optical Coatings for Interferometric Detectors of Gravitational Waves
M. Principe, IEEE METRO-AEROSPACE Conf. (2014) 473.
DOI: 10.1109/MetroAeroSpace.2014.6865971

 

Reflective Coating Optimization for Interferometric Detectors of Gravitational Waves
M. Principe, Optics Express, 2015, in princ (accepted for publication Feb 19th 2015).

News

The upcoming ET Symposium will take place in Maastricht from May 6th at noon until May 10th early afternoon. This symposium gives the chance to unite with colleagues deeply engaged in the Einstein Telescope project and those who share a profound interest in ET. Together, we'll delve into recent advancements and exchange insights while forging lasting connections.

The web page of the event is available here: https://indico.ego-gw.it/event/710/ 

Krzysztof (Chris) Belczynski  pioneered the study of massive black hole formation from the collapse of metal-poor progenitors, several years before the advanced detectors' era. He demonstrated that binary population synthesis is the necessary starting point to understand the (astro)physics of binary compact objects, unraveling the importance of stellar winds, mass transfer, and common envelope. Thanks to his work, we  understand why LIGO and Virgo have observed many more binary black holes than neutron star mergers. For many years to come, his models will be a cornerstone for the science case of the Einstein telescope, as well as for the other implications of massive binary star evolution across cosmic time. His volcanic, unconventional, and provocative personality will be sorely missed.

 

 

The 2nd Einstein Telescope Annual Meeting (Nov, 14, 2023 - Nov, 16, 2023)  will be the opportunity to discuss key points of the ET collaboration and of the ET design.

The meeting is hosted by the “Gravitational waves” group of the Astroparticles, Astrophysics and Cosmology (A2C) department of the Irène Joliot-Curie Laboratoire des deux infinis (IJCLab). It will take place in the IJCLab Lehmann auditorium (building 200) in the campus of the Paris-Saclay University. Open to all ET collaboration members, it will start on Tuesday morning November 14th and end on Thursday November 16th at lunch time. In-person and remote registrations are possible.

Indico page: https://indico.ijclab.in2p3.fr/event/9686 

The XIII symposium of the Einstein Telescope (ET) will be held in Cagliari, at the THotel from May 8th to May 12th 2023. 

The Symposium is organized in parallel sessions, hosting workshops managed by the ET specific boards (EIB, ISB, OSB and SPB), and a plenary sessions to have a global view of all the activities on going.  

Along the week several lectures on the physics of ET will be organized with the support of the OSB for PhD students and young researchers.

All the details are available in the Indico page of the event:
https://indico.ego-gw.it/event/562/ 

The second Site Preparation Board (SPB) workshop will take place from23-26 January 2023, Maastricht (NL). This will be the occasion to discuss and get updates on the various activities taking place at the sites aspiring to possibly host the future Einstein Telescope (Sardegna in Italy, EMR partially in Belgium, Germany & The Netherlands and possibly Lausitz in Germany). In particular (hydro)geology aspects, noise environment, legal/permitting affairs, bidbook organization, schedules, excavation costs, local funding and future plans, etc. will be discussed. Apart from plenary presentations, lots of time will be reserved for discussions. 

The venue of the workshop is Thiessen Wineries, Maastricht, Grote Gracht 18, 6211SW, Maastricht, The Netherlands. See: https://thiessen.nl/. A maximum of 50 participants can be hosted in person. A video (Zoom) link will be provided to allow remote attendance.

Indico page here: https://indico.ego-gw.it/event/525/