MeerKAT radio observations of the neutron star low-mass X-ray binary Cen X–4 at low accretion rates

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 516:2 (2022) 2641-2652

Authors:

J van den Eijnden, R Fender, JCA Miller-Jones, TD Russell, P Saikia, GR Sivakoff, F Carotenuto

The internal alignment and validation of a powered ADC for SOXS

Proceedings of SPIE--the International Society for Optical Engineering SPIE, the international society for optics and photonics 12184 (2022) 1218480-1218480-10

Authors:

Federico Battaini, Kalyan Radhakrishnan, Riccardo Claudi, Matteo Munari, Ricardo Zanmar Sánchez, Matteo Aliverti, Mirko Colapietro, Davide Ricci, Luigi Lessio, Marco Dima, S Di Filippo, Federico Biondi, Sergio Campana, Pietro Schipani, Andrea Baruffolo, Sagi Ben-Ami, Giulio Capasso, Rosario Cosentino, Francesco D'Alessio, Paolo D'Avanzo, Ofir Hershko, Hanindyo Kuncarayakti, Marco Landoni, Giuliano Pignata, Adam Rubin, Salvatore Scuderi, Fabrizio Vitali, David Young, Jani Achrén, José Antonio Araiza-Durán, Iair Arcavi, Anna Brucalassi, Rachel Bruch, Enrico Cappellaro, Massimo Della Valle, Marco De Pascale, Rosario Di Benedetto, Sergio D'Orsi, Avishay Gal-Yam, Matteo Genoni, Marcos Hernandez Díaz, Jari Kotilainen, Gianluca Li Causi, Laurent Marty, Seppo Mattila, Michael Rappaport, Marco Riva, Bernardo Salasnich, Stephen Smartt, Maximilian Stritzinger, Héctor Pérez Ventura

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.

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

Galaxy populations in the Hydra I cluster from the VEGAS survey

Astronomy & Astrophysics EDP Sciences 665 (2022) a105

Authors:

Antonio La Marca, Enrichetta Iodice, Michele Cantiello, Duncan A Forbes, Marina Rejkuba, Michael Hilker, Magda Arnaboldi, Laura Greggio, Chiara Spiniello, Steffen Mieske, Aku Venhola, Marilena Spavone, Giuseppe D’Ago, Maria Angela Raj, Rossella Ragusa, Marco Mirabile, Roberto Rampazzo, Reynier Peletier, Maurizio Paolillo, Nelvy Choque Challapa, Pietro Schipani