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3. QUBIC: the Q & U Bolometric Interferometer for Cosmology

Author

Battistelli, E. S., Ade, P., Alberro, J. G., Almela, A., Amico, G., Arnaldi, L. H., Auguste, D., Aumont, J., Azzoni, S., Banfi, S., Battaglia, P., Baù, A., Bèlier, B., Bennett, D., Bergè, L., Bernard, J. -Ph., Bersanelli, M., Bigot-Sazy, M. -A., Bleurvacq, N., Bonaparte, J., Bonis, J., Bottani, A., Bunn, E., Burke, D., Buzi, D., Buzzelli, A., Cavaliere, F., Chanial, P., Chapron, C., Charlassier, R., Columbro, F., Coppi, G., Coppolecchia, A., D'Alessandro, G., de Bernardis, P., De Gasperis, G., De Leo, M., De Petris, M., Dheilly, S., Di Donato, A., Dumoulin, L., Etchegoyen, A., Fasciszewski, A., Ferreyro, L. P., Fracchia, D., Franceschet, C., Lerena, M. M. Gamboa, Ganga, K., Garcìa, B., Redondo, M. E. Garcìa, Gaspard, M., Gault, A., Gayer, D., Gervasi, M., Giard, M., Gilles, V., Giraud-Heraud, Y., Berisso, M. Gòmez, Gonzàlez, M., Gradziel, M., Grandsire, L., Hamilton, J. -Ch., Harari, D., Haynes, V., Henrot-Versillè, S., Hoang, D. T., Incardona, F., Jules, E., Kaplan, J., Korotkov, A., Kristukat, C., Lamagna, L., Loucatos, S., Louis, T., Luterstein, R., Maffei, B., Marnieros, S., Marty, W., Masi, S., Mattei, A., May, A., McCulloch, M., Medina, M. C., Mele, L., Melhuish, S., Mennella, A., Montier, L., Mousset, L., Mundo, L. M., Murphy, J. A., Murphy, J. D., Nati, F., Olivieri, E., Oriol, C., O'Sullivan, C., Paiella, A., Pajot, F., Passerini, A., Pastoriza, H., Pelosi, A., Perbost, C., Perciballi, M., Pezzotta, F., Piacentini, F., Piat, M., Piccirillo, L., Pisano, G., Platino, M., Polenta, G., Prèle, D., Puddu, R., Rambaud, D., Ringegni, P., Romero, G. E., Salatino, M., Salum, J. M., Schillaci, A., Scòccola, C., Scully, S., Spinelli, S., Stankowiak, G., Stolpovskiy, M., Suarez, F., Tartari, A., Thermeau, J. -P., Timbie, P., Tomasi, M., Torchinsky, S., Tristram, M., Tucker, C., Tucker, G., Vanneste, S., Viganò, D., Vittorio, N., Voisin, F., Watson, B., Wicek, F., Zannoni, M., and Zullo, A.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

The Q & U Bolometric Interferometer for Cosmology, QUBIC, is an innovative experiment designed to measure the polarization of the Cosmic Microwave Background and in particular the signature left therein by the inflationary expansion of the Universe. The expected signal is extremely faint, thus extreme sensitivity and systematic control are necessary in order to attempt this measurement. QUBIC addresses these requirements using an innovative approach combining the sensitivity of Transition Edge Sensor cryogenic bolometers, with the deep control of systematics characteristic of interferometers. This makes QUBIC unique with respect to others classical imagers experiments devoted to the CMB polarization. In this contribution we report a description of the QUBIC instrument including recent achievements and the demonstration of the bolometric interferometry performed in lab. QUBIC will be deployed at the observation site in Alto Chorrillos, in Argentina at the end of 2019., Comment: Accepted for publication in the Journal of Low Temperature Physics

Published
2020
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4. QUBIC: using NbSi TESs with a bolometric interferometer to characterize the polarisation of the CMB

Author

Piat, M., Bélier, B., Bergé, L., Bleurvacq, N., Chapron, C., Dheilly, S., Dumoulin, L., González, M., Grandsire, L., Hamilton, J. -Ch., Henrot-Versillé, S., Hoang, D. T., Marnieros, S., Marty, W., Montier, L., Olivieri, E., Oriol, C., Perbost, C., Prêle, D., Rambaud, D., Salatino, M., Stankowiak, G., Thermeau, J. -P., Torchinsky, S., Voisin, F., Ade, P., Alberro, J. G., Almela, A., Amico, G., Arnaldi, L. H., Auguste, D., Aumont, J., Azzoni, S., Banfi, S., Battaglia, P., Battistelli, E. S., Baù, A., Bennett, D., Bernard, J. -Ph., Bersanelli, M., Bigot-Sazy, M. -A., Bonaparte, J., Bonis, J., Bottani, A., Bunn, E., Burke, D., Buzi, D., Buzzelli, A., Cavaliere, F., Chanial, P., Charlassier, R., Columbro, F., Coppi, G., Coppolecchia, A., D'Alessandro, G., de Bernardis, P., De Gasperis, G., De Leo, M., De Petris, M., Di Donato, A., Etchegoyen, A., Fasciszewski, A., Ferreyro, L. P., Fracchia, D., Franceschet, C., Lerena, M. M. Gamboa, Ganga, K., García, B., Redondo, M. E. García, Gaspard, M., Gault, A., Gayer, D., Gervasi, M., Giard, M., Gilles, V., Giraud-Heraud, Y., Berisso, M. Gómez, Gradziel, M., Harari, D., Haynes, V., Incardona, F., Jules, E., Kaplan, J., Korotkov, A., Kristukat, C., Lamagna, L., Loucatos, S., Louis, T., Luterstein, R., Maffei, B., Masi, S., Mattei, A., May, A., McCulloch, M., Medina, M. C., Mele, L., Melhuish, S., Mennella, A., Mousset, L., Mundo, L. M., Murphy, J. A., Murphy, J. D., Nati, F., O'Sullivan, C., Paiella, A., Pajot, F., Passerini, A., Pastoriza, H., Pelosi, A., Perciballi, M., Pezzotta, F., Piacentini, F., Piccirillo, L., Pisano, G., Platino, M., Polenta, G., Puddu, R., Ringegni, P., Romero, G. E., Salum, J. M., Schillaci, A., Scóccola, C., Scully, S., Spinelli, S., Stolpovskiy, M., Suarez, F., Tartari, A., Timbie, P., Tomasi, M., Tucker, C., Tucker, G., Vanneste, S., Viganò, D., Vittorio, N., Watson, B., Wicek, F., Zannoni, M., and Zullo, A.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

QUBIC (Q \& U Bolometric Interferometer for Cosmology) is an international ground-based experiment dedicated in the measurement of the polarized fluctuations of the Cosmic Microwave Background (CMB). It is based on bolometric interferometry, an original detection technique which combine the immunity to systematic effects of an interferometer with the sensitivity of low temperature incoherent detectors. QUBIC will be deployed in Argentina, at the Alto Chorrillos mountain site near San Antonio de los Cobres, in the Salta province. The QUBIC detection chain consists in 2048 NbSi Transition Edge Sensors (TESs) cooled to 350mK.The voltage-biased TESs are read out with Time Domain Multiplexing based on Superconducting QUantum Interference Devices (SQUIDs) at 1 K and a novel SiGe Application-Specific Integrated Circuit (ASIC) at 60 K allowing to reach an unprecedented multiplexing (MUX) factor equal to 128. The QUBIC experiment is currently being characterized in the lab with a reduced number of detectors before upgrading to the full instrument. I will present the last results of this characterization phase with a focus on the detectors and readout system., Comment: Conference proceedings submitted to the Journal of Low Temperature Physics for LTD18

Published
2019

5. Thermal architecture for the QUBIC cryogenic receiver

Author

May, A. J., Chapron, C., Coppi, G., D'Alessandro, G., de Bernardis, P., Masi, S., Melhuish, S., Piat, M., Piccirillo, L., Schillaci, A., Thermeau, J. -P., Ade, P., Amico, G., Auguste, D., Aumont, J., Banfi, S., Barbara, G., Battaglia, P., Battistelli, E., Bau, A., Belier, B., Bennett, D., Berge, L., Bernard, J. -Ph., Bersanelli, M., Bigot-Sazy, M. -A., Bleurvacq, N., Bonaparte, J., Bonis, J., Bordier, G., Breelle, E., Bunn, E., Burke, D., Buzi, D., Buzzelli, A., Cavaliere, F., Chanial, P., Charlassier, R., Columbro, F., Coppolecchia, A., Couchot, F., D'Agostino, R., De Gasperis, G., De Leo, M., De Petris, M., Di Donato, A., Dumoulin, L., Etchegoyen, A., Fasciszewski, A., Franceschet, C., Lerena, M. M. Gamboa, Garcia, B., Garrido, X., Gaspard, M., Gault, A., Gayer, D., Gervasi, M., Giard, M., Giraud-Heraud, Y., Berisso, M. Gomez, Gonzalez, M., Gradziel, M., Grandsire, L., Guerrard, E., Hamilton, J. -Ch., Harari, D., Haynes, V., Henrot-Versille, S., Hoang, D. T., Incardona, F., Jules, E., Kaplan, J., Korotkov, A., Kristukat, C., Lamagna, L., Loucatos, S., Louis, T., Lowitz, A., Lukovic, V., Luterstein, R., Maffei, B., Marnieros, S., Mattei, A., McCulloch, M. A., Medina, M. C., Mele, L., Mennella, A., Montier, L., Mundo, L. M., Murphy, J. A., Murphy, J. D., O'Sullivan, C., Olivieri, E., Paiella, A., Pajot, F., Passerini, A., Pastoriza, H., Pelosi, A., Perbost, C., Perdereau, O., Pezzotta, F., Piacentini, F., Pisano, G., Polenta, G., Prele, D., Puddu, R., Rambaud, D., Ringegni, P., Romero, G. E., Salatino, M., Scoccola, C. G., Scully, S., Spinelli, S., Stolpovskiy, M., Suarez, F., Tartari, A., Timbie, P., Torchinsky, S. A., Tristram, M., Truongcanh, V., Tucker, C., Tucker, G., Vanneste, S., Vigano, D., Vittorio, N., Voisin, F., Watson, B., Wicek, F., Zannoni, M., and Zullo, A.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Physics - Instrumentation and Detectors
Abstract

QUBIC, the QU Bolometric Interferometer for Cosmology, is a novel forthcoming instrument to measure the B-mode polarization anisotropy of the Cosmic Microwave Background. The detection of the B-mode signal will be extremely challenging; QUBIC has been designed to address this with a novel approach, namely bolometric interferometry. The receiver cryostat is exceptionally large and cools complex optical and detector stages to 40 K, 4 K, 1 K and 350 mK using two pulse tube coolers, a novel 4He sorption cooler and a double-stage 3He/4He sorption cooler. We discuss the thermal and mechanical design of the cryostat, modelling and thermal analysis, and laboratory cryogenic testing.

Published
2018

8. QUBIC - The Q&U Bolometric Interferometer for Cosmology - A novel way to look at the polarized Cosmic Microwave Background

Author

Mennella, A., Ade, P. A. R., Aumont, J., Banfi, S., Battaglia, P., Battistelli, E. S., Baù, A., Bélier, B., Bennett, D., Bergé, L., Bernard, J. Ph., Bersanelli, M., Bigot-Sazy, M. A., Bleurvacq, N., Bordier, G., Brossard, J., Bunn, E. F., Burke, D. P., Buzi, D., Buzzelli, A., Cammilleri, D., Cavaliere, F., Chanial, P., Chapron, C., Columbro, F., Coppi, G., Coppolecchia, A., Couchot, F., D'Agostino, R., D'Alessandro, G., de Bernardis, P., De Gasperis, G., De Leo, M., De Petris, M., Decourcelle, T., Del Torto, F., Dumoulin, L., Etchegoyen, A., Franceschet, C., Garcia, B., Gault, A., Gayer, D., Gervasi, M., Ghribi, A., Giard, M., Giraud-Héraud, Y., Gradziel, M., Grandsire, L., Hamilton, J. Ch., Harari, D., Haynes, V., Henrot-Versillé, S., Holtzer, N., Incardona, F., Kaplan, J., Korotkov, A., Krachmalnicoff, N., Lamagna, L., Lande, J., Loucatos, S., Lowitz, A., Lukovic, V., Maffei, B., Marnieros, S., Martino, J., Masi, S., May, A., McCulloch, M., Medina, M. C., Mele, L., Melhuish, S., Montier, L., Murphy, A., Néel, D., Ng, M. W., O'Sullivan, C., Paiella, A., Pajot, F., Passerini, A., Pelosi, A., Perbost, C., Perdereau, O., Piacentini, F., Piat, M., Piccirillo, L., Pisano, G., Préle, D., Puddu, R., Rambaud, D., Rigaut, O., Romero, G. E., Salatino, M., Schillaci, A., Scully, S., Stolpovskiy, M., Suarez, F., Tartari, A., Timbie, P., Torchinsky, S., Tristram, M., Tucker, C., Tucker, G., Viganò, D., Vittorio, N., Voisin, F., Watson, B., Zannoni, M., and Zullo, A.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

In this paper we describe QUBIC, an experiment that takes up the challenge posed by the detection of primordial gravitational waves with a novel approach, that combines the sensitivity of state-of-the art bolometric detectors with the systematic effects control typical of interferometers. The so-called "self-calibration" is a technique deeply rooted in the interferometric nature of the instrument and allows us to clean the measured data from instrumental effects. The first module of QUBIC is a dual band instrument (150 GHz and 220 GHz) that will be deployed in Argentina during the Fall 2018., Comment: Presented at the EPS Conference on High Energy Physics, Venice (Italy), 5-12 July 2017 Accepted for publication in conference proceedings

Published
2018

9. AMI-LA Observations of the SuperCLASS Super-cluster

Author

Riseley, C. J., Grainge, K. J. B., Perrott, Y. C., Scaife, A. M. M., Battye, R. A., Beswick, R. J., Birkinshaw, M., Brown, M. L., Casey, C. M., Demetroullas, C., Hales, C. A., Harrison, I., Hung, C. -L., Jackson, N. J., Muxlow, T., Watson, B., Cantwell, T. M., Carey, S. H., Elwood, P. J., Hickish, J., Jin, T. Z., Razavi-Ghods, N., Scott, P. F., and Titterington, D. J.

Subjects
Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We present a deep survey of the SuperCLASS super-cluster - a region of sky known to contain five Abell clusters at redshift $z\sim0.2$ - performed using the Arcminute Microkelvin Imager (AMI) Large Array (LA) at 15.5$~$GHz. Our survey covers an area of approximately 0.9 square degrees. We achieve a nominal sensitivity of $32.0~\mu$Jy beam$^{-1}$ toward the field centre, finding 80 sources above a $5\sigma$ threshold. We derive the radio colour-colour distribution for sources common to three surveys that cover the field and identify three sources with strongly curved spectra - a high-frequency-peaked source and two GHz-peaked-spectrum sources. The differential source count (i) agrees well with previous deep radio source count, (ii) exhibits no evidence of an emerging population of star-forming galaxies, down to a limit of 0.24$~$mJy, and (iii) disagrees with some models of the 15$~$GHz source population. However, our source count is in agreement with recent work that provides an analytical correction to the source count from the SKADS Simulated Sky, supporting the suggestion that this discrepancy is caused by an abundance of flat-spectrum galaxy cores as-yet not included in source population models., Comment: 17 pages, 14 figures, 3 tables. Accepted for publication in MNRAS

Published
2017
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12. QUBIC Technical Design Report

Author

Aumont, J., Banfi, S., Battaglia, P., Battistelli, E. S., Baù, A., Bélier, B., Bennett, D., Bergé, L., Bernard, J. Ph., Bersanelli, M., Bigot-Sazy, M. A., Bleurvacq, N., Bordier, G., Brossard, J., Bunn, E. F., Buzi, D., Buzzelli, A., Cammilleri, D., Cavaliere, F., Chanial, P., Chapron, C., Coppi, G., Coppolecchia, A., Couchot, F., D'Agostino, R., D'Alessandro, G., de Bernardis, P., De Gasperis, G., De Petris, M., Decourcelle, T., Del Torto, F., Dumoulin, L., Etchegoyen, A., Franceschet, C., Garcia, B., Gault, A., Gayer, D., Gervasi, M., Ghribi, A., Giard, M., Giraud-Héraud, Y., Gradziel, M., Grandsire, L., Hamilton, J. Ch., Harari, D., Haynes, V., Henrot-Versillé, S., Holtzer, N., Kaplan, J., Korotkov, A., Lamagna, L., Lande, J., Loucatos, S., Lowitz, A., Lukovic, V., Maffei, B., Marnieros, S., Martino, J., Masi, S., May, A., McCulloch, M., Medina, M. C., Melhuish, S., Mennella, A., Montier, L., Murphy, A., Néel, D., Ng, M. W., O'Sullivan, C., Paiella, A., Pajot, F., Passerini, A., Pelosi, A., Perbost, C., Perdereau, O., Piacentini, F., Piat, M., Piccirillo, L., Pisano, G., Prêle, D., Puddu, R., Rambaud, D., Rigaut, O., Romero, G. E., Salatino, M., Schillaci, A., Scully, S., Stolpovskiy, M., Suarez, F., Tartari, A., Timbie, P., Tristram, M., Tucker, G., Viganò, D., Vittori, N., Voisin, F., Watson, B., Zannoni, M., and Zullo, A.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

QUBIC is an instrument aiming at measuring the B mode polarisation anisotropies at medium scales angular scales (30-200 multipoles). The search for the primordial CMB B-mode polarization signal is challenging, because of many difficulties: smallness of the expected signal, instrumental systematics that could possibly induce polarization leakage from the large E signal into B, brighter than anticipated polarized foregrounds (dust) reducing to zero the initial hope of finding sky regions clean enough to have a direct primordial B-modes observation. The QUBIC instrument is designed to address all aspects of this challenge with a novel kind of instrument, a Bolometric Interferometer, combining the background-limited sensitivity of Transition-Edge-Sensors and the control of systematics allowed by the observation of interference fringe patterns, while operating at two frequencies to disentangle polarized foregrounds from primordial B mode polarization. Its characteristics are described in details in this Technological Design Report., Comment: 139 pages ; high resolution version can be found on the qubic website (http://qubic.in2p3.fr/QUBIC/Home.html) minor changes : update author list & affiliations ; correct title

Published
2016

13. Deep observations of the Super-CLASS super-cluster at 325 MHz with the GMRT: the low-frequency source catalogue

Author

Riseley, C. J., Scaife, A. M. M., Hales, C. A., Harrison, I., Birkinshaw, M., Battye, R. A., Beswick, R. J., Brown, M. L., Casey, C. M., Chapman, S. C., Demetroullas, C., Hung, C. -L., Jackson, N. J., Muxlow, T., and Watson, B.

Subjects
Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We present the results of 325 MHz GMRT observations of a super-cluster field, known to contain five Abell clusters at redshift $z \sim 0.2$. We achieve a nominal sensitivity of $34\,\mu$Jy beam$^{-1}$ toward the phase centre. We compile a catalogue of 3257 sources with flux densities in the range $183\,\mu\rm{Jy}\,-\,1.5\,\rm{Jy}$ within the entire $\sim 6.5$ square degree field of view. Subsequently, we use available survey data at other frequencies to derive the spectral index distribution for a sub-sample of these sources, recovering two distinct populations -- a dominant population which exhibit spectral index trends typical of steep-spectrum synchrotron emission, and a smaller population of sources with typically flat or rising spectra. We identify a number of sources with ultra-steep spectra or rising spectra for further analysis, finding two candidate high-redshift radio galaxies and three gigahertz-peaked-spectrum radio sources. Finally, we derive the Euclidean-normalised differential source counts using the catalogue compiled in this work, for sources with flux densities in excess of $223 \, \mu$Jy. Our differential source counts are consistent with both previous observations at this frequency and models of the low-frequency source population. These represent the deepest source counts yet derived at 325 MHz. Our source counts exhibit the well-known flattening at mJy flux densities, consistent with an emerging population of star-forming galaxies; we also find marginal evidence of a downturn at flux densities below $308 \, \mu$Jy, a feature so far only seen at 1.4 GHz., Comment: 25 pages, 18 figures, 10 tables. Accepted for publication in MNRAS

Published
2016
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16. Lapidus HAV Correction

Author

Smith, W. Bret, Watson, B. Collier, Reb, Christopher W., Hyer, Christopher F., editor, Berlet, Gregory C., editor, Philbin, Terrence M., editor, Bull, Patrick E., editor, and Prissel, Mark A., editor

Published
2019
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19. QUBIC: Using NbSi TESs with a Bolometric Interferometer to Characterize the Polarization of the CMB

Author

Piat, M., Bélier, B., Bergé, L., Bleurvacq, N., Chapron, C., Dheilly, S., Dumoulin, L., González, M., Grandsire, L., Hamilton, J.-Ch., Henrot-Versillé, S., Hoang, D. T., Marnieros, S., Marty, W., Montier, L., Olivieri, E., Oriol, C., Perbost, C., Prêle, D., Rambaud, D., Salatino, M., Stankowiak, G., Thermeau, J.-P., Torchinsky, S., Voisin, F., Ade, P., Alberro, J. G., Almela, A., Amico, G., Arnaldi, L. H., Auguste, D., Aumont, J., Azzoni, S., Banfi, S., Battaglia, P., Battistelli, E. S., Baù, A., Bennett, D., Bernard, J.-Ph., Bersanelli, M., Bigot-Sazy, M.-A., Bonaparte, J., Bonis, J., Bottani, A., Bunn, E., Burke, D., Buzi, D., Buzzelli, A., Cavaliere, F., Chanial, P., Charlassier, R., Columbro, F., Coppi, G., Coppolecchia, A., D’Alessandro, G., de Bernardis, P., De Gasperis, G., De Leo, M., De Petris, M., Di Donato, A., Etchegoyen, A., Fasciszewski, A., Ferreyro, L. P., Fracchia, D., Franceschet, C., Gamboa Lerena, M. M., Ganga, K., García, B., García Redondo, M. E., Gaspard, M., Gault, A., Gayer, D., Gervasi, M., Giard, M., Gilles, V., Giraud-Heraud, Y., Gómez Berisso, M., Gradziel, M., Harari, D., Haynes, V., Incardona, F., Jules, E., Kaplan, J., Korotkov, A., Kristukat, C., Lamagna, L., Loucatos, S., Louis, T., Luterstein, R., Maffei, B., Masi, S., Mattei, A., May, A., McCulloch, M., Medina, M. C., Mele, L., Melhuish, S., Mennella, A., Mousset, L., Mundo, L. M., Murphy, J. A., Murphy, J. D., Nati, F., O’Sullivan, C., Paiella, A., Pajot, F., Passerini, A., Pastoriza, H., Pelosi, A., Perciballi, M., Pezzotta, F., Piacentini, F., Piccirillo, L., Pisano, G., Platino, M., Polenta, G., Puddu, R., Ringegni, P., Romero, G. E., Salum, J. M., Schillaci, A., Scóccola, C., Scully, S., Spinelli, S., Stolpovskiy, M., Suarez, F., Tartari, A., Timbie, P., Tomasi, M., Tucker, C., Tucker, G., Vanneste, S., Viganò, D., Vittorio, N., Watson, B., Wicek, F., Zannoni, M., and Zullo, A.

Published
2020
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20. Latest Progress on the QUBIC Instrument

Author

Ghribi, A., Aumont, J., Battistelli, E. S., Bau, A., Bergé, L., Bernard, J-Ph., Bersanelli, M., Bigot-Sazy, M-A., Bordier, G., Bunn, E. T., Cavaliere, F., Chanial, P., Coppolecchia, A., Decourcelle, T., De Bernardis, P., De Petris, M., Drilien, A-A., Dumoulin, L., Falvella, M. C., Gault, A., Gervasi, M., Giard, M., Gradziel, M., Grandsire, L., Gayer, D., Hamilton, J-Ch., Haynes, V., Giraud-Héraud, Y., Holtzer, N., Kaplan, J., Korotkov, A., Lande, J., Lowitz, A., Maffei, B., Marnieros, S., Martino, J., Masi, S., Mennella, A., Montier, L., Murphy, A., Ng, M. W., Olivieri, E., Pajot, F., Passerini, A., Piacentini, F., Piat, M., Piccirillo, L., Pisano, G., Prêle, D., Rambaud, D., Rigaut, O., Rosset, C., Salatino, M., Schillaci, A., Scully, S., O'Sullivan, C., Tartari, A., Timbie, P., Tucker, G., Vibert, L., Voisin, F., Watson, B., and Zannoni, M.

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

QUBIC is a unique instrument that crosses the barriers between classical imaging architectures and interferometry taking advantage from both for high sensitivity and systematics mitigation. The scientific target is the detection of the primordial gravitational waves imprint on the Cosmic Microwave Background which are the proof of inflation, holy grail of modern cosmology. In this paper, we show the latest advances in the development of the architecture and the sub-systems of the first module of this instrument to be deployed in Dome Charlie Concordia base - Antarctica in 2015., Comment: 6 pages, 2 figures, conference LTD15

Published
2013
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22. The Role of Fear Appeals in Improving Driver Safety: A Review of the Effectiveness of Fear-Arousing (Threat) Appeals in Road Safety Advertising

Author

Lewis, I., Watson, B., and Tay, R.

Abstract

This paper reviews theoretical and empirical evidence relating to the effectiveness of fear (threat) appeals in improving driver safety. The results of the review highlight the mixed and inconsistent findings that have been reported in the literature. While fear arousal appears important for attracting attention, its contribution to behaviour change appears less critical than other factors, such as perceptions of vulnerability and effective coping strategies. Furthermore, threatening appeals targeting young males (a high-risk group of concern) have traditionally relied on the portrayal of physical harm. However, the available evidence questions the relevance, and hence effectiveness, of strong physical threats with this group. Consequently, further research is required to determine the optimum way to utilise fear in road safety advertising, as well as the type of threat(s) most effective with different road users. (Contains 6 footnotes.)

Published
2007

23. One or more bound planets per Milky Way star from microlensing observations

Author

Cassan, A., Kubas, D., Beaulieu, J. -P., Dominik, M., Horne, K., Greenhill, J., Wambsganss, J., Menzies, J., Williams, A., Jorgensen, U. G., Udalski, A., Bennett, D. P., Albrow, M. D., Batista, V., Brillant, S., Caldwell, J. A. R., Cole, A., Coutures, Ch., Cook, K. H., Dieters, S., Prester, D. Dominis, Donatowicz, J., Fouque, P., Hill, K., Kains, N., Kane, S., Marquette, J. -B., Martin, R., Pollard, K. R., Sahu, K. C., Vinter, C., Warren, D., Watson, B., Zub, M., Sumi, T., Szymanski, M. K., Kubiak, M., Poleski, R., Soszynski, I., Ulaczyk, K., Pietrzynski, G., and Wyrzykowski, L.

Subjects
Astrophysics - Earth and Planetary Astrophysics
Abstract

Most known extrasolar planets (exoplanets) have been discovered using the radial velocity$^{\bf 1,2}$ or transit$^{\bf 3}$ methods. Both are biased towards planets that are relatively close to their parent stars, and studies find that around 17--30% (refs 4, 5) of solar-like stars host a planet. Gravitational microlensing$^{\bf 6\rm{\bf -}\bf 9}$, on the other hand, probes planets that are further away from their stars. Recently, a population of planets that are unbound or very far from their stars was discovered by microlensing$^{\bf 10}$. These planets are at least as numerous as the stars in the Milky Way$^{\bf 10}$. Here we report a statistical analysis of microlensing data (gathered in 2002--07) that reveals the fraction of bound planets 0.5--10 AU (Sun--Earth distance) from their stars. We find that 17$_{\bf -9}^{\bf +6}$% of stars host Jupiter-mass planets (0.3--10 $\MJ$, where $\MJ {\bf = 318}$ $\Mearth$ and $\Mearth$ is Earth's mass). Cool Neptunes (10--30 $\Mearth$) and super-Earths (5--10 $\Mearth$) are even more common: their respective abundances per star are 52$_{\bf -29}^{\bf +22}$% and 62$_{\bf -37}^{\bf +35}$%. We conclude that stars are orbited by planets as a rule, rather than the exception., Comment: Letter, 2 figures

Published
2012
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25. "Our Metadata, Ourselves": The Trans Metadata Collective.

Author

Watson, B. M., Murphy, Devon, Schaefer, Beck, and Huang, Jackson

Subjects
*LIBRARY special collections, *ARTIFICIAL intelligence, *DIGITAL technology, *INFORMATION sharing, *INFORMATION policy, *INFORMATION technology
Abstract

This paper presents the history, internal processes, and finalized report of the Trans Metadata Collective (TMDC), founded to address the lack of attention paid to trans and gender diverse issues in galleries, archives, libraries, museums, and special collections (GLAMS). The TMDC, an ad‐hoc group of nearly a hundred information professionals, developed best practices for the description and classification of trans and gender diverse information resources. These guidelines prioritize transparency, cultural sensitivity, correct identification, explicit descriptions of transphobia, and regular assessment of trans‐related content. It examines the effects of commonly used standards and controlled vocabularies such as Resource Description and Access (RDA) and Library of Congress Subject Headings (LCSH) on trans and gender diverse people and critiques the inadequacy of these standards' representation of those communities. The TMDC provides guidance for using existing LCSHs, recommends alternative subject vocabularies, and proposes revisions to improve representation. The paper advocates individual agency in naming and gender identification, with recommendations on contacting creators and documenting their preferences. The TMDC emphasizes the importance of minimizing potential harm and protecting privacy in metadata creation. Overall, the report aims to enhance the representation and inclusion of trans and gender diverse communities in GLAMS institutions. [ABSTRACT FROM AUTHOR]

Published
2023
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26. ESR Study of (C_5H_{12}N)_2CuBr_4

Author

Zvyagin, S., Watson, B. C., Park, Ju-Hyun, Jensen, D. A., Angerhofer, A., Brunel, L. -C., Talham, D. R., and Meisel, M. W.

Subjects
Condensed Matter - Strongly Correlated Electrons
Abstract

ESR studies at 9.27, 95.4, and 289.7 GHz have been performed on (C$_5$H$_{12}$N)$_2$CuBr$_4$ down to 3.7 K. The 9.27 GHz data were acquired with a single crystal and do not indicate the presence of any structural transitions. The high frequency data were collected with a polycrystalline sample and resolved two absorbances, consistent with two crystallographic orientations of the magnetic sites and with earlier ESR studies performed at 300 K. Below $B_{C1}=6.6$ T, our data confirm the presence of a spin singlet ground state., Comment: 2 pages, 4 figs., submitted 23rd International Conference on Low Temperature Physics (LT-23), Aug. 2002

Published
2002
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27. The Magnetic Spin Ladder (C_{5}H_{12}N)_{2}CuBr_{4}: High Field Magnetization and Scaling Near Quantum Criticality

Author

Watson, B. C., Kotov, V. N., Meisel, M. W., Hall, D. W., Granroth, G. E., Montfrooij, W. T., Nagler, S. E., Jensen, D. A., Backov, R., Petruska, M. A., Fanucci, G. E., and Talham, D. R.

Subjects
Condensed Matter - Strongly Correlated Electrons
Abstract

The magnetization, $M(H \leq 30$ T, 0.7 K $\leq T \leq 300$ K), from single crystals and powder samples of (C$_{5}$H$_{12}$N)$_{2}$CuBr$_{4}$ has been used to identify this system as an $S=1/2$ Heisenberg two-leg ladder in the strong coupling limit, $J_{\perp} = 13.3$ K and $J_{\parallel} = 3.8$ K, with $H_{c1} = 6.6$ T and $H_{c2} = 14.6$ T. An inflection point in $M(H, T = 0.7$ K) at half-saturation, $M_{s}/2$, is described by an effective \emph{XXZ} chain. The data exhibit universal scaling behavior in the vicinity of $H_{c1}$ and $H_{c2}$, indicating the system is near a quantum critical point., Comment: 4 pages, 4 figures

Published
2000
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35. The state of Pluto’s atmosphere in 2012–2013

Author

Bosh, A.S., Person, M.J., Levine, S.E., Zuluaga, C.A., Zangari, A.M., Gulbis, A.A.S., Schaefer, G.H., Dunham, E.W., Babcock, B.A., Davis, A.B., Pasachoff, J.M., Rojo, P., Servajean, E., Förster, F., Oswalt, T., Batcheldor, D., Bell, D., Bird, P., Fey, D., Fulwider, T., Geisert, E., Hastings, D., Keuhler, C., Mizusawa, T., Solenski, P., and Watson, B.

Published
2015
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42. Electrostatic Precipitation for Cleaning Mars Atmospheric ISRU Intakes

Author

Johansen, M. R, Phillips, J. R, Wang, J. J, Mulligan, J, Watson, B. A, Lane, John E, Mantovani, James G, Mackey, Paul J, and Calle, Carlos I

Subjects
Physics (General)
Abstract

Future Mars ISRU atmospheric intakes are estimated to ingest several hundred grams of dust over their lifetime. The Electrostatics and Surface Physics Laboratory at NASA's Kennedy Space Center is developing a dust removal system based on a mature terrestrial technology - electrostatic precipitation. In this technology, a high voltage and grounded collection electrode create a corona discharge which charges particles in a dust-laden flow. The resulting electric field between the high voltage and collection electrodes drive the charged particles toward the collection electrode. This paper presents the design of the electrostatic precipitator and preliminary results.

Published
2018

44. QUBIC: A Fizeau Interferometer Targeting Primordial B-Modes

Author

Tartari, A., Aumont, J., Banfi, S., Battaglia, P., Battistelli, E. S., Baù, A., Bélier, B., Bennett, D., Bergé, L., Bernard, J. Ph., Bersanelli, M., Bigot-Sazy, M. A., Bleurvacq, N., Bordier, G., Brossard, J., Bunn, E. F., Buzi, D., Cammilleri, D., Cavaliere, F., Chanial, P., Chapron, C., Coppolecchia, A., D’Alessandro, G., De Bernardis, P., Decourcelle, T., Del Torto, F., De Petris, M., Dumoulin, L., Franceschet, C., Gault, A., Gayer, D., Gervasi, M., Ghribi, A., Giard, M., Giraud-Héraud, Y., Gradziel, M., Grandsire, L., Hamilton, J. Ch., Haynes, V., Holtzer, N., Kaplan, J., Korotkov, A., Lande, J., Lowitz, A., Maffei, B., Marnieros, S., Martino, J., Masi, S., McCulloch, M., Melhuish, S., Mennella, A., Montier, L., Murphy, A., Néel, D., Ng, M. W., O’Sullivan, C., Pajot, F., Passerini, A., Perbost, C., Piacentini, F., Piat, M., Piccirillo, L., Pisano, G., Prêle, D., Rambaud, D., Rigaut, O., Salatino, M., Schillaci, A., Scully, S., Stolpovskiy, M. M., Timbie, P., Tucker, G., Viganò, D., Voisin, F., Watson, B., and Zannoni, M.

Published
2016
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45. Interventions for Perinatal Depression and Anxiety in Fathers: A Mini-Review

Author

Rodrigues, AL, Ericksen, J, Watson, B, Gemmill, AW, Milgrom, J, Rodrigues, AL, Ericksen, J, Watson, B, Gemmill, AW, and Milgrom, J

Abstract

BACKGROUND AND OBJECTIVES: Up to 10% of fathers experience perinatal depression, often accompanied by anxiety, with a detrimental impact on the emotional and behavioural development of infants. Yet, few evidence-based interventions specifically for paternal perinatal depression or anxiety exist, and few depressed or anxious fathers engage with support. This mini-review aims to build on the evidence base set by other recent systematic reviews by synthesising more recently available studies on interventions for paternal perinatal depression and anxiety. Secondarily, we also aimed to identify useful information on key implementation strategies, if any, that increase the engagement of men. METHODS: We drew upon three major previous systematic reviews and performed an updated search of PubMed/Medline; Psycinfo; Cochrane Database; Embase and Cinahl. The search was limited to trials, feasibility studies or pilot studies of interventions published between 2015 and 2020 that reported on fathers' perinatal mental health. We included psychological, educational, psychosocial, paternal, couple-focused, or group therapies, delivered face-to-face, via telephone and/or online that reported on either paternal depression, anxiety or both. RESULTS: Eleven studies satisfied search criteria (5 of which were not included in previous reviews). The majority were randomised controlled trials. Most interventions incorporated counselling, therapy or psychoeducation and took an indirect approach to perinatal mental health through antenatal or postnatal education and were couple-focused. No studies reported a presence of diagnosed depression or anxiety at baseline, although five studies reported a positive effect on sub-threshold symptoms. DISCUSSION: There was some evidence that these approaches may be useful in the initial engagement of fathers with perinatal supports and improve depression and anxiety scores. No studies targeted the explicit treatment of clinically depressed or anxious men

Published
2022

48. Impact of COVID-19 public health restrictions on hospital admissions for young infants in Victoria, Australia

Author

Licheni, SH, Devaraja, L, Watson, B, Simeonovic, M, Cheng, DR, Hoq, M, Standish, J, Gawler, L, McNab, S, Danchin, M, Licheni, SH, Devaraja, L, Watson, B, Simeonovic, M, Cheng, DR, Hoq, M, Standish, J, Gawler, L, McNab, S, and Danchin, M

Abstract

AIM: Strict public health measures during the COVID-19 pandemic led to less support for infants and their parents. We aimed to characterise the frequency and nature of infant admissions to the Royal Children's Hospital (RCH), Melbourne in 2020, compared to the previous year. METHODS: A retrospective review of medical records identified infants ≤3 months admitted to the general medicine unit, RCH from March to September in 2019 and 2020. Diagnoses potentially related to the impact of public health measures and reduced family and community supports were identified and compared to all infant diagnoses across both years. Clinical characteristics and need for referral for additional supports or mental health services were also ascertained. RESULTS: There were fewer admissions for infants ≤3 months in 2020 (n = 411) compared to 2019 (n = 678), with a threefold increase in admissions with a primary or secondary diagnosis of feeding difficulties, growth disturbance, infant irritability or maternal mental health concerns (191/411; 46% vs. 97/678; 14%). There were more infants of first-time parents (112/191; 59% vs. 44/97; 45%) and a reduction in the number of admissions due to infection (145/411; 35%; vs. 467/678; 69%). CONCLUSION: During the COVID-19 pandemic, there was a threefold increase in admissions for infants ≤3 months due to poor growth, feeding difficulties, irritability and maternal mental health concerns in 2020 compared to 2019. These findings may inform future pandemic planning and policy development to ensure maintenance of community supports such as maternal child health nurse (MCHN) service delivery for young infants.

Published
2022

49. QUBIC: Using NbSi TESs with a Bolometric Interferometer to Characterize the Polarization of the CMB

Author

Piat, M, Bélier, B, Bergé, L, Bleurvacq, N, Chapron, C, Dheilly, S, Dumoulin, L, González, M, Grandsire, L, Hamilton, J, Henrot-Versillé, S, Hoang, D, Marnieros, S, Marty, W, Montier, L, Olivieri, E, Oriol, C, Perbost, C, Prêle, D, Rambaud, D, Salatino, M, Stankowiak, G, Thermeau, J, Torchinsky, S, Voisin, F, Ade, P, Alberro, J, Almela, A, Amico, G, Arnaldi, L, Auguste, D, Aumont, J, Azzoni, S, Banfi, S, Battaglia, P, Battistelli, E, Baù, A, Bennett, D, Bernard, J, Bersanelli, M, Bigot-Sazy, M, Bonaparte, J, Bonis, J, Bottani, A, Bunn, E, Burke, D, Buzi, D, Buzzelli, A, Cavaliere, F, Chanial, P, Charlassier, R, Columbro, F, Coppi, G, Coppolecchia, A, D’Alessandro, G, de Bernardis, P, De Gasperis, G, De Leo, M, De Petris, M, Di Donato, A, Etchegoyen, A, Fasciszewski, A, Ferreyro, L, Fracchia, D, Franceschet, C, Gamboa Lerena, M, Ganga, K, García, B, García Redondo, M, Gaspard, M, Gault, A, Gayer, D, Gervasi, M, Giard, M, Gilles, V, Giraud-Heraud, Y, Gómez Berisso, M, Gradziel, M, Harari, D, Haynes, V, Incardona, F, Jules, E, Kaplan, J, Korotkov, A, Kristukat, C, Lamagna, L, Loucatos, S, Louis, T, Luterstein, R, Maffei, B, Masi, S, Mattei, A, May, A, Mcculloch, M, Medina, M, Mele, L, Melhuish, S, Mennella, A, Mousset, L, Mundo, L, Murphy, J, Nati, F, O’Sullivan, C, Paiella, A, Pajot, F, Passerini, A, Pastoriza, H, Pelosi, A, Perciballi, M, Pezzotta, F, Piacentini, F, Piccirillo, L, Pisano, G, Platino, M, Polenta, G, Puddu, R, Ringegni, P, Romero, G, Salum, J, Schillaci, A, Scóccola, C, Scully, S, Spinelli, S, Stolpovskiy, M, Suarez, F, Tartari, A, Timbie, P, Tomasi, M, Tucker, C, Tucker, G, Vanneste, S, Viganò, D, Vittorio, N, Watson, B, Wicek, F, Zannoni, M, Zullo, A, Piat, M., Bélier, B., Bergé, L., Bleurvacq, N., Chapron, C., Dheilly, S., Dumoulin, L., González, M., Grandsire, L., Hamilton, J. -Ch., Henrot-Versillé, S., Hoang, D. T., Marnieros, S., Marty, W., Montier, L., Olivieri, E., Oriol, C., Perbost, C., Prêle, D., Rambaud, D., Salatino, M., Stankowiak, G., Thermeau, J. -P., Torchinsky, S., Voisin, F., Ade, P., Alberro, J. G., Almela, A., Amico, G., Arnaldi, L. H., Auguste, D., Aumont, J., Azzoni, S., Banfi, S., Battaglia, P., Battistelli, E. S., Baù, A., Bennett, D., Bernard, J. -Ph., Bersanelli, M., Bigot-Sazy, M. -A., Bonaparte, J., Bonis, J., Bottani, A., Bunn, E., Burke, D., Buzi, D., Buzzelli, A., Cavaliere, F., Chanial, P., Charlassier, R., Columbro, F., Coppi, G., Coppolecchia, A., D’Alessandro, G., de Bernardis, P., De Gasperis, G., De Leo, M., De Petris, M., Di Donato, A., Etchegoyen, A., Fasciszewski, A., Ferreyro, L. P., Fracchia, D., Franceschet, C., Gamboa Lerena, M. M., Ganga, K., García, B., García Redondo, M. E., Gaspard, M., Gault, A., Gayer, D., Gervasi, M., Giard, M., Gilles, V., Giraud-Heraud, Y., Gómez Berisso, M., Gradziel, M., Harari, D., Haynes, V., Incardona, F., Jules, E., Kaplan, J., Korotkov, A., Kristukat, C., Lamagna, L., Loucatos, S., Louis, T., Luterstein, R., Maffei, B., Masi, S., Mattei, A., May, A., McCulloch, M., Medina, M. C., Mele, L., Melhuish, S., Mennella, A., Mousset, L., Mundo, L. M., Murphy, J. A., Murphy, J. D., Nati, F., O’Sullivan, C., Paiella, A., Pajot, F., Passerini, A., Pastoriza, H., Pelosi, A., Perciballi, M., Pezzotta, F., Piacentini, F., Piccirillo, L., Pisano, G., Platino, M., Polenta, G., Puddu, R., Ringegni, P., Romero, G. E., Salum, J. M., Schillaci, A., Scóccola, C., Scully, S., Spinelli, S., Stolpovskiy, M., Suarez, F., Tartari, A., Timbie, P., Tomasi, M., Tucker, C., Tucker, G., Vanneste, S., Viganò, D., Vittorio, N., Watson, B., Wicek, F., Zannoni, M., Zullo, A., Piat, M, Bélier, B, Bergé, L, Bleurvacq, N, Chapron, C, Dheilly, S, Dumoulin, L, González, M, Grandsire, L, Hamilton, J, Henrot-Versillé, S, Hoang, D, Marnieros, S, Marty, W, Montier, L, Olivieri, E, Oriol, C, Perbost, C, Prêle, D, Rambaud, D, Salatino, M, Stankowiak, G, Thermeau, J, Torchinsky, S, Voisin, F, Ade, P, Alberro, J, Almela, A, Amico, G, Arnaldi, L, Auguste, D, Aumont, J, Azzoni, S, Banfi, S, Battaglia, P, Battistelli, E, Baù, A, Bennett, D, Bernard, J, Bersanelli, M, Bigot-Sazy, M, Bonaparte, J, Bonis, J, Bottani, A, Bunn, E, Burke, D, Buzi, D, Buzzelli, A, Cavaliere, F, Chanial, P, Charlassier, R, Columbro, F, Coppi, G, Coppolecchia, A, D’Alessandro, G, de Bernardis, P, De Gasperis, G, De Leo, M, De Petris, M, Di Donato, A, Etchegoyen, A, Fasciszewski, A, Ferreyro, L, Fracchia, D, Franceschet, C, Gamboa Lerena, M, Ganga, K, García, B, García Redondo, M, Gaspard, M, Gault, A, Gayer, D, Gervasi, M, Giard, M, Gilles, V, Giraud-Heraud, Y, Gómez Berisso, M, Gradziel, M, Harari, D, Haynes, V, Incardona, F, Jules, E, Kaplan, J, Korotkov, A, Kristukat, C, Lamagna, L, Loucatos, S, Louis, T, Luterstein, R, Maffei, B, Masi, S, Mattei, A, May, A, Mcculloch, M, Medina, M, Mele, L, Melhuish, S, Mennella, A, Mousset, L, Mundo, L, Murphy, J, Nati, F, O’Sullivan, C, Paiella, A, Pajot, F, Passerini, A, Pastoriza, H, Pelosi, A, Perciballi, M, Pezzotta, F, Piacentini, F, Piccirillo, L, Pisano, G, Platino, M, Polenta, G, Puddu, R, Ringegni, P, Romero, G, Salum, J, Schillaci, A, Scóccola, C, Scully, S, Spinelli, S, Stolpovskiy, M, Suarez, F, Tartari, A, Timbie, P, Tomasi, M, Tucker, C, Tucker, G, Vanneste, S, Viganò, D, Vittorio, N, Watson, B, Wicek, F, Zannoni, M, Zullo, A, Piat, M., Bélier, B., Bergé, L., Bleurvacq, N., Chapron, C., Dheilly, S., Dumoulin, L., González, M., Grandsire, L., Hamilton, J. -Ch., Henrot-Versillé, S., Hoang, D. T., Marnieros, S., Marty, W., Montier, L., Olivieri, E., Oriol, C., Perbost, C., Prêle, D., Rambaud, D., Salatino, M., Stankowiak, G., Thermeau, J. -P., Torchinsky, S., Voisin, F., Ade, P., Alberro, J. G., Almela, A., Amico, G., Arnaldi, L. H., Auguste, D., Aumont, J., Azzoni, S., Banfi, S., Battaglia, P., Battistelli, E. S., Baù, A., Bennett, D., Bernard, J. -Ph., Bersanelli, M., Bigot-Sazy, M. -A., Bonaparte, J., Bonis, J., Bottani, A., Bunn, E., Burke, D., Buzi, D., Buzzelli, A., Cavaliere, F., Chanial, P., Charlassier, R., Columbro, F., Coppi, G., Coppolecchia, A., D’Alessandro, G., de Bernardis, P., De Gasperis, G., De Leo, M., De Petris, M., Di Donato, A., Etchegoyen, A., Fasciszewski, A., Ferreyro, L. P., Fracchia, D., Franceschet, C., Gamboa Lerena, M. M., Ganga, K., García, B., García Redondo, M. E., Gaspard, M., Gault, A., Gayer, D., Gervasi, M., Giard, M., Gilles, V., Giraud-Heraud, Y., Gómez Berisso, M., Gradziel, M., Harari, D., Haynes, V., Incardona, F., Jules, E., Kaplan, J., Korotkov, A., Kristukat, C., Lamagna, L., Loucatos, S., Louis, T., Luterstein, R., Maffei, B., Masi, S., Mattei, A., May, A., McCulloch, M., Medina, M. C., Mele, L., Melhuish, S., Mennella, A., Mousset, L., Mundo, L. M., Murphy, J. A., Murphy, J. D., Nati, F., O’Sullivan, C., Paiella, A., Pajot, F., Passerini, A., Pastoriza, H., Pelosi, A., Perciballi, M., Pezzotta, F., Piacentini, F., Piccirillo, L., Pisano, G., Platino, M., Polenta, G., Puddu, R., Ringegni, P., Romero, G. E., Salum, J. M., Schillaci, A., Scóccola, C., Scully, S., Spinelli, S., Stolpovskiy, M., Suarez, F., Tartari, A., Timbie, P., Tomasi, M., Tucker, C., Tucker, G., Vanneste, S., Viganò, D., Vittorio, N., Watson, B., Wicek, F., Zannoni, M., and Zullo, A.

Abstract

Q & U Bolometric Interferometer for Cosmology (QUBIC) is an international ground-based experiment dedicated in the measurement of the polarized fluctuations of the Cosmic Microwave Background. It is based on bolometric interferometry, an original detection technique which combines the immunity to systematic effects of an interferometer with the sensitivity of low-temperature incoherent detectors. QUBIC will be deployed in Argentina, at the Alto Chorrillos mountain site near San Antonio de los Cobres, in the Salta Province. The QUBIC detection chain consists in 2048 NbSi transition edge sensors (TESs) cooled to 350 mK.The voltage-biased TESs are read out with time domain multiplexing based on Superconducting QUantum Interference Devices at 1 K and a novel SiGe application-specific integrated circuit at 60 K allowing to reach an unprecedented multiplexing factor equal to 128. The QUBIC experiment is currently being characterized in the laboratory with a reduced number of detectors before upgrading to the full instrument. I will present the last results of this characterization phase with a focus on the detectors and readout system.

Published
2020

50. QUBIC: The Q & U Bolometric Interferometer for Cosmology

Author

Battistelli, E, Ade, P, Alberro, J, Almela, A, Amico, G, Arnaldi, L, Auguste, D, Aumont, J, Azzoni, S, Banfi, S, Battaglia, P, Bau, A, Bélier, B, Bennett, D, Bergé, L, Bernard, J, Bersanelli, M, Bigot-Sazy, M, Bleurvacq, N, Bonaparte, J, Bonis, J, Bottani, A, Bunn, E, Burke, D, Buzi, D, Buzzelli, A, Cavaliere, F, Chanial, P, Chapron, C, Charlassier, R, Columbro, F, Coppi, G, Coppolecchia, A, D’Alessandro, G, de Bernardis, P, De Gasperis, G, De Leo, M, De Petris, M, Dheilly, S, Di Donato, A, Dumoulin, L, Etchegoyen, A, Fasciszewski, A, Ferreyro, L, Fracchia, D, Franceschet, C, Lerena, M, Ganga, K, García, B, Redondo, M, Gaspard, M, Gault, A, Gayer, D, Gervasi, M, Giard, M, Gilles, V, Giraud-Heraud, Y, Berisso, M, González, M, Gradziel, M, Grandsire, L, Hamilton, J, Harari, D, Haynes, V, Henrot-Versillé, S, Hoang, D, Incardona, F, Jules, E, Kaplan, J, Korotkov, A, Kristukat, C, Lamagna, L, Loucatos, S, Louis, T, Luterstein, R, Maffei, B, Marnieros, S, Marty, W, Masi, S, Mattei, A, May, A, Mcculloch, M, Medina, M, Mele, L, Melhuish, S, Mennella, A, Montier, L, Mousset, L, Mundo, L, Murphy, J, Nati, F, Olivieri, E, Oriol, C, O’Sullivan, C, Paiella, A, Pajot, F, Passerini, A, Pastoriza, H, Pelosi, A, Perbost, C, Perciballi, M, Pezzotta, F, Piacentini, F, Piat, M, Piccirillo, L, Pisano, G, Platino, M, Polenta, G, Prêle, D, Puddu, R, Rambaud, D, Ringegni, P, Romero, G, Salatino, M, Salum, J, Schillaci, A, Scóccola, C, Scully, S, Spinelli, S, Stankowiak, G, Stolpovskiy, M, Suarez, F, Tartari, A, Thermeau, J, Timbie, P, Tomasi, M, Torchinsky, S, Tristram, M, Tucker, C, Tucker, G, Vanneste, S, Viganò, D, Vittorio, N, Voisin, F, Watson, B, Wicek, F, Zannoni, M, Zullo, A, Battistelli, E. S., Ade, P., Alberro, J. G., Almela, A., Amico, G., Arnaldi, L. H., Auguste, D., Aumont, J., Azzoni, S., Banfi, S., Battaglia, P., Bau, A., Bélier, B., Bennett, D., Bergé, L., Bernard, J. -Ph., Bersanelli, M., Bigot-Sazy, M. -A., Bleurvacq, N., Bonaparte, J., Bonis, J., Bottani, A., Bunn, E., Burke, D., Buzi, D., Buzzelli, A., Cavaliere, F., Chanial, P., Chapron, C., Charlassier, R., Columbro, F., Coppi, G., Coppolecchia, A., D’Alessandro, G., de Bernardis, P., De Gasperis, G., De Leo, M., De Petris, M., Dheilly, S., Di Donato, A., Dumoulin, L., Etchegoyen, A., Fasciszewski, A., Ferreyro, L. P., Fracchia, D., Franceschet, C., Lerena, M. M. Gamboa, Ganga, K., García, B., Redondo, M. E. García, Gaspard, M., Gault, A., Gayer, D., Gervasi, M., Giard, M., Gilles, V., Giraud-Heraud, Y., Berisso, M. Gómez, González, M., Gradziel, M., Grandsire, L., Hamilton, J. -Ch., Harari, D., Haynes, V., Henrot-Versillé, S., Hoang, D. 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Abstract

The Q & U Bolometric Interferometer for Cosmology, QUBIC, is an innovative experiment designed to measure the polarization of the cosmic microwave background and in particular the signature left therein by the inflationary expansion of the Universe. The expected signal is extremely faint; thus, extreme sensitivity and systematic control are necessary in order to attempt this measurement. QUBIC addresses these requirements using an innovative approach combining the sensitivity of transition-edge sensor cryogenic bolometers, with the deep control of systematics characteristic of interferometers. This makes QUBIC unique with respect to others' classical imagers experiments devoted to the CMB polarization. In this contribution, we report a description of the QUBIC instrument including recent achievements and the demonstration of the bolometric interferometry performed in laboratory. QUBIC will be deployed at the observation site in Alto Chorrillos, in Argentina, at the end of 2019.

Published
2020

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