EPJ Web of Conferences最新文献_第2页

OLIMPO: A balloon-borne SZE imager to probe ICM dynamics and the WHIM OLIMPO：用于探测 ICM 动力学和 WHIM 的气球载 SZE 成像仪

EPJ Web of Conferences Pub Date : 2024-04-05 DOI: 10.1051/epjconf/202429300049

J. Sayers, Camille Avestruz, Ritoban Basu Thakur, E. Battistelli, E. Bulbul, Federico Caccioti, F. Columbro, A. Coppolecchia, Scott Cray, Giuseppe D'Alessandro, P. Bernardis, M. Petris, S. Hanany, L. Lamagna, Erwin Lau, Silvia Masi, Allesandro Paiella, Giorgio Pettinari, F. Piacentini, Eitan Rapaport, Larry Rudnick, Irina Zhuravleva, John ZuHuone

{"title":"OLIMPO: A balloon-borne SZE imager to probe ICM dynamics and the WHIM","authors":"J. Sayers, Camille Avestruz, Ritoban Basu Thakur, E. Battistelli, E. Bulbul, Federico Caccioti, F. Columbro, A. Coppolecchia, Scott Cray, Giuseppe D'Alessandro, P. Bernardis, M. Petris, S. Hanany, L. Lamagna, Erwin Lau, Silvia Masi, Allesandro Paiella, Giorgio Pettinari, F. Piacentini, Eitan Rapaport, Larry Rudnick, Irina Zhuravleva, John ZuHuone","doi":"10.1051/epjconf/202429300049","DOIUrl":"https://doi.org/10.1051/epjconf/202429300049","url":null,"abstract":"OLIMPO is a proposed Antarctic balloon-borne Sunyaev-Zel’dovich effect (SZE) imager to study gas dynamics associated with structure formation along with the properties of the warm-hot intergalactic medium (WHIM) residing in the connective filaments. During a 25 day flight OLIMPO will image a total of 10 z∼0.05 galaxy clusters and 8 bridges at 145, 250, 365, and 460 GHz at an angular resolution of 1.0′–3.3′. The maps will be significantly deeper than those planned from CMB-S4 and CCAT-P, and will have excellent fidelity to the large angular scales of our low-z targets, which are difficult to probe from the ground. In combination with X-ray data from eROSITA and XRISM we will transform our current static view of galaxy clusters into a full dynamic picture by measuring the internal intra-cluster medium (ICM) velocity structure with the kinematic SZE, X-ray spectroscopy, and the power spectrum of ICM fluctuations. Radio observations from ASKAP and MeerKAT will be used to better understand the connection between ICM turbulence and shocks with the relativistic plasma. Beyond the cluster boundary, we will combine thermal SZE maps from OLIMPO with X-ray imaging from eROSITA to measure the thermodynamics of the WHIM residing in filaments, providing a better understanding of its properties and its contribution to the total baryon budget.","PeriodicalId":11731,"journal":{"name":"EPJ Web of Conferences","volume":"32 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140739975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

3D scaling laws and projection effects in The300-NIKA2 Sunyaev-Zeldovich Large Program Twin Samples 300-NIKA2 Sunyaev-Zeldovich 大型程序双样本中的三维缩放定律和投影效应

EPJ Web of Conferences Pub Date : 2024-04-04 DOI: 10.1051/epjconf/202429300037

A. Paliwal, W. Cui, D. D. Andr'es, M. Petris, A. Ferragamo, C. Hanser, J. Macı́as-Pérez, F. Mayet, A. Moyer-Anin, M. Muñoz-Echeverría, L. Perotto, E. Rasia, G. Yepes

{"title":"3D scaling laws and projection effects in The300-NIKA2 Sunyaev-Zeldovich Large Program Twin Samples","authors":"A. Paliwal, W. Cui, D. D. Andr'es, M. Petris, A. Ferragamo, C. Hanser, J. Macı́as-Pérez, F. Mayet, A. Moyer-Anin, M. Muñoz-Echeverría, L. Perotto, E. Rasia, G. Yepes","doi":"10.1051/epjconf/202429300037","DOIUrl":"https://doi.org/10.1051/epjconf/202429300037","url":null,"abstract":"The abundance of galaxy clusters with mass and redshift is a wellknown cosmological probe. The cluster mass is a key parameter for studies that aim to constrain cosmological parameters using galaxy clusters, making it critical to understand and properly account for the errors in its estimates. Subsequently, it becomes important to correctly calibrate scaling relations between observables like the integrated Compton parameter and the mass of the cluster. The NIKA2 Sunyaev-Zeldovich Large program (LPSZ) enables one to map the intracluster medium profiles in the mm–wavelength band with great details (resolution of 11 & 17″ at 1.2 & 2 mm, respectively) and hence, to estimate the cluster hydrostatic mass more precisely than previous SZ observations. However, there are certain systematic effects which can only be accounted for with the use of simulations. For this purpose, we employ The Three Hundred simulations which have been modelled with a range of physics modules to simulate galaxy clusters. The so-called twin samples are constructed by picking synthetic clusters of galaxies with properties close to the observational targets of the LPSZ. In particular, we use the Compton parameter maps and projected total mass maps of these twin samples along 29 different lines of sight. We investigate the scatter that projection induces on the total masses. Eventually, we consider the statistical values along different lines of sight to construct a kind of 3D scaling law between the integrated Compton parameter, total mass, and overdensity of the galaxy clusters to determine the overdensity that is least impacted by the projection effect.","PeriodicalId":11731,"journal":{"name":"EPJ Web of Conferences","volume":"50 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140742976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Licking the plate: Dusty star-forming galaxies buried in the ALMA calibration data 舔盘子埋藏在 ALMA 校准数据中的尘埃状恒星形成星系

EPJ Web of Conferences Pub Date : 2024-04-02 DOI: 10.1051/epjconf/202429300011

Jianhang Chen, R. Ivison, M. Zwaan, C. Péroux, A. Biggs

{"title":"Licking the plate: Dusty star-forming galaxies buried in the ALMA calibration data","authors":"Jianhang Chen, R. Ivison, M. Zwaan, C. Péroux, A. Biggs","doi":"10.1051/epjconf/202429300011","DOIUrl":"https://doi.org/10.1051/epjconf/202429300011","url":null,"abstract":"Deep, unbiased surveys are essential to decipher the cosmic evolution of galaxies. The submillimetre (submm) and millimetre (mm) windows complement the UV/optical waveband and are key to revealing the cold and dusty Universe. Traditional ways of conducting deep surveys resort to either lensed fields or target small areas for ultra-long integrations. These surveys have greatly advanced our understanding of dusty star-forming galaxies (DSFGs), but are susceptible to lensing uncertainties and cosmic variance and will be expensive to expand. Here, we summarise our recent multi-wavelength survey of DSFGs in the vicinity of ALMA’s calibrators: the ALMACAL survey. These fields have accumulated many hundreds of hours of on-source time, reaching depths and effective areas that are competitive with bespoke cosmological surveys. We summarise the multi-wavelength number counts from ALMACAL and the resolved fraction of the Cosmic Infrared Background (CIB) from submm to mm wave-lengths. Meanwhile, combining all available ALMA observations in each field results in impressive frequency coverage, which often yields the redshifts of these DSFGs. The ALMACAL survey has demonstrated the scientific value of calibration scans for all submm/mm and radio telescopes, existing and planned.","PeriodicalId":11731,"journal":{"name":"EPJ Web of Conferences","volume":"361 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140751496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Characteristics of the fission fragments in the three-body model of binary fission 二元裂变三体模型中裂变碎片的特征

EPJ Web of Conferences Pub Date : 2024-03-18 DOI: 10.1051/epjconf/202429208001

V. Y. Denisov

引用次数: 0

Microscopic bell-shape nonlocality: The case of proton scattering off 40Ca at 200 MeV 微观钟形非位置性：质子在 200 MeV 下从 40Ca 散射的案例

EPJ Web of Conferences Pub Date : 2024-02-22 DOI: 10.1051/epjconf/202429202001

G. Blanchon, H. Arellano

引用次数: 0

The case for an all-sky millimetre survey at subarcminute resolution 以亚微分分辨率进行全天空毫米波探测的理由

EPJ Web of Conferences Pub Date : 2024-02-01 DOI: 10.1051/epjconf/202429300014

F. D'esert, M. Calvo, Andrea Catalano, S. Leclercq, J. Macı́as-Pérez, F. Mayet, A. Monfardini, L. Perotto, N. Ponthieu

引用次数: 0

Predicting nucleon-nucleus scattering observables using nuclear structure theory 利用核结构理论预测核子-核散射观测值

EPJ Web of Conferences Pub Date : 2024-01-10 DOI: 10.1051/epjconf/202429206003

Aaina Thapa, Jutta Escher, E. Chimanski, Marc Dupuis, S. P'eru, W. Younes

{"title":"Predicting nucleon-nucleus scattering observables using nuclear structure theory","authors":"Aaina Thapa, Jutta Escher, E. Chimanski, Marc Dupuis, S. P'eru, W. Younes","doi":"10.1051/epjconf/202429206003","DOIUrl":"https://doi.org/10.1051/epjconf/202429206003","url":null,"abstract":"Developing a predictive capability for inelastic scattering will find applications in multiple areas. Experimental data for neutron-nucleus inelastic scattering is limited and thus one needs a robust theoretical framework to complement it. Charged-particle inelastic scattering can be used as a surrogate for (n, γ) reactions to predict capture cross sections for unstable nuclei. Our work uses microscopic nuclear structure calculations for spherical nuclei to obtain nucleon-nucleus scattering potentials and calculate cross sections for these processes. We implement the Jeukenne, Lejeune, Mahaux (JLM) semi-microscopic folding approach, where the medium effects on nuclear interaction are parameterized in nuclear matter to obtain the nucleon-nucleon (NN) interaction in a medium at positive energies. We solve for the nuclear ground state using the Hartree-Fock-Bogliubov (HFB) many-body method, assuming the nucleons within the nucleus interact via the Gogny-D1M potential. The vibrational excited states of the target nucleus are calculated using the quasi-particle random phase approximation (QRPA). We demonstrate our approach for spherical nuclei in the medium-mass region, showing scattering results for the 90Zr nucleus.","PeriodicalId":11731,"journal":{"name":"EPJ Web of Conferences","volume":"37 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140511551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The reaction πN → ωN in a dynamical coupled-channel approach 动态耦合通道法中的反应 πN → ωN

EPJ Web of Conferences Pub Date : 2024-01-02 DOI: 10.1051/epjconf/202429102004

Yu-Fei Wang

引用次数: 5

Conservation Laws and Hydrodynamics 守恒定律和流体力学

EPJ Web of Conferences Pub Date : 2023-10-17 DOI: 10.1051/epjconf/202327601010

S. Jeon

引用次数: 0

Cosmic ray mass composition measurement with the TALE hybrid detector 用TALE混合探测器测量宇宙射线质量成分

EPJ Web of Conferences Pub Date : 2023-07-25 DOI: 10.1051/epjconf/202328302009

K. Fujita

引用次数: 0