Cosmology

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ShapePipe: A new shape measurement pipeline and weak-lensing application to UNIONS/CFIS data

Astronomy & Astrophysics EDP Sciences 666 (2022) a162

Authors:

Axel Guinot, Martin Kilbinger, Samuel Farrens, Austin Peel, Arnau Pujol, Morgan Schmitz, Jean-Luc Starck, Thomas Erben, Raphael Gavazzi, Stephen Gwyn, Michael J Hudson, Hendrik Hildebrandt, Liaudat Tobias, Lance Miller, Isaac Spitzer, Ludovic Van Waerbeke, Jean-Charles Cuillandre, Sébastien Fabbro, Alan McConnachie, Yannick Mellier
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Intrinsic correlations of galaxy sizes in a hydrodynamical cosmological simulation

(2022)

Authors:

Harry Johnston, Dana Sophia Westbeek, Sjoerd Weide, Nora Elisa Chisari, Yohan Dubois, Julien Devriendt, Christophe Pichon
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The shape of dark matter haloes: results from weak lensing in the Ultraviolet Near-Infrared Optical Northern Survey (UNIONS)

ArXiv 2209.09088 (2022)

Authors:

Bailey Robison, Michael J Hudson, Jean-Charles Cuillandre, Thomas Erben, Sébastien Fabbro, Raphaël Gavazzi, Axel Guinot, Stephen Gwyn, Hendrik Hildebrandt, Martin Kilbinger, Alan McConnachie, Lance Miller, Isaac Spitzer, Ludovic van Waerbeke
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Optical characterization of OMT-coupled TES bolometers for LiteBIRD

Journal of Low Temperature Physics Springer Nature 209:3-4 (2022) 396-408

Authors:

J Hubmayr, Par Ade, A Adler, E Allys, D Alonso, K Arnold, D Auguste, J Aumont, R Aurlien, Je Austermann, S Azzoni, C Baccigalupi, Aj Banday, R Banerji, Rb Barreiro, N Bartolo, S Basak, E Battistelli, L Bautista, Ja Beall, D Beck, S Beckman, K Benabed, J Bermejo-Ballesteros, M Bersanelli, J Bonis, J Borrill, F Bouchet, F Boulanger, S Bounissou, M Brilenkov, Ml Brown, M Bucher, E Calabrese, M Calvo, P Campeti, A Carones, Fj Casas, A Catalano, A Challinor, V Chan, K Cheung, Y Chinone, C Chiocchetta, Se Clark, L Clermont, S Clesse, J Cliche, F Columbro, Ja Connors

Abstract:

Feedhorn- and orthomode transducer- (OMT) coupled transition edge sensor (TES) bolometers have been designed and micro-fabricated to meet the optical specifications of the LiteBIRD high frequency telescope (HFT) focal plane. We discuss the design and optical characterization of two LiteBIRD HFT detector types: dual-polarization, dual-frequency-band pixels with 195/280 GHz and 235/337 GHz band centers. Results show well-matched passbands between orthogonal polarization channels and frequency centers within 3% of the design values. The optical efficiency of each frequency channel is conservatively reported to be within the range 0.64 - 0.72, determined from the response to a cryogenic, temperature-controlled thermal source. These values are in good agreement with expectations and either exceed or are within 10% of the values used in the LiteBIRD sensitivity forecast. Lastly, we report a measurement of loss in Nb/SiNx/Nb microstrip at 100 mK and over the frequency range 200–350 GHz, which is comparable to values previously reported in the literature.
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First light for GRAVITY Wide

Astronomy & Astrophysics EDP Sciences 665 (2022) a75

Authors:

R Abuter, F Allouche, A Amorim, C Bailet, M Bauböck, J-P Berger, P Berio, A Bigioli, O Boebion, ML Bolzer, H Bonnet, G Bourdarot, P Bourget, W Brandner, Y Clénet, B Courtney-Barrer, Y Dallilar, R Davies, D Defrère, A Delboulbé, F Delplancke, R Dembet, PT de Zeeuw, A Drescher, A Eckart, C Édouard, F Eisenhauer, M Fabricius, H Feuchtgruber, G Finger, NM Förster Schreiber, E Garcia, P Garcia, F Gao, E Gendron, R Genzel, JP Gil, S Gillessen, T Gomes, F Gonté, C Gouvret, P Guajardo, S Guieu, M Hartl, X Haubois, F Haußmann, G Heißel, Th Henning, S Hippler, S Hönig, M Horrobin, N Hubin, E Jacqmart, L Jochum, L Jocou, A Kaufer, P Kervella, H Korhonen, L Kreidberg, S Lacour, S Lagarde, O Lai, V Lapeyrère, R Laugier, J-B Le Bouquin, J Leftley, P Léna, D Lutz, F Mang, A Marcotto, D Maurel, A Mérand, F Millour, N More, H Nowacki, M Nowak, S Oberti, T Ott, L Pallanca, L Pasquini, T Paumard, K Perraut, G Perrin, R Petrov, O Pfuhl, N Pourré, S Rabien, C Rau, S Robbe-Dubois, S Rochat, M Salman, M Schöller, J Schubert, N Schuhler, J Shangguan, T Shimizu, S Scheithauer, A Sevin, F Soulez, A Spang, E Stadler, J Stadler, C Straubmeier, E Sturm, LJ Tacconi, KRW Tristram, F Vincent, S von Fellenberg, S Uysal, F Widmann, E Wieprecht, E Wiezorrek, J Woillez, S Yazici, A Young, G Zins
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