What does an interferometer really measure? Including instrument and data characteristics in the reconstruction of the 21cm power spectrum

Posted by klaurent MIT

Kavli Affiliate: Jacqueline N. Hewitt | First 5 Authors: Adélie Gorce, Samskruthi Ganjam, Adrian Liu, Steven G. Murray, Zara Abdurashidova | Summary: Combining the visibilities measured by an interferometer to form a cosmological power spectrum is a complicated process in which the window functions play a crucial role. In a delay-based analysis, the mapping between […]


Continue.. What does an interferometer really measure? Including instrument and data characteristics in the reconstruction of the 21cm power spectrum

PARAGEN : A Parallel Generation Toolkit

Posted by klaurent UCAS

Kavli Affiliate: Yi Zhou | First 5 Authors: Jiangtao Feng, Yi Zhou, Jun Zhang, Xian Qian, Liwei Wu | Summary: PARAGEN is a PyTorch-based NLP toolkit for further development on parallel generation. PARAGEN provides thirteen types of customizable plugins, helping users to experiment quickly with novel ideas across model architectures, optimization, and learning strategies. We […]


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A Fast Transient Backend to Detect FRBs with the Tianlai Dish Pathfinder Array

Posted by klaurent Chicago

Kavli Affiliate: Albert Stebbins | First 5 Authors: Zijie Yu, Furen Deng, Shijie Sun, Chenhui Niu, Jixia Li | Summary: The Tianlai Dish Pathfinder array is a radio interferometer array consisting of 16 six meter dish antennas. The original digital backend integration time is at the seconds level, designed for HI intensity mapping experiment. A […]


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A neural model of proximity to reward

Posted by klaurent Columbia

Kavli Affiliate: Costa, Rui | Authors: Paul Botros, Nuria Vendrell-Llopis, Rui Costa and Jose Carmena | Summary: Abstract Throughout learning, refinement of cortical activity in cortex, a process termed “credit assignment”, underlies the refinement of behavioral actions leading to reward. While previous research shows striatum’s role in linking behavior to reward, striatum’s role in linking […]


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The hidden side of cosmic star formation at z > 3: Bridging optically-dark and Lyman break galaxies with GOODS-ALMA

Posted by klaurent Tokyo

Kavli Affiliate: John Silverman | First 5 Authors: Mengyuan Xiao, David Elbaz, Carlos Gómez-Guijarro, Lucas Leroy, Longji Bing | Summary: Our current understanding of the cosmic star formation history at z>3 is primarily based on UV-selected galaxies (i.e., LBGs). Recent studies of H-dropouts have revealed that we may be missing a large proportion of star […]


Continue.. The hidden side of cosmic star formation at z > 3: Bridging optically-dark and Lyman break galaxies with GOODS-ALMA

The hidden side of cosmic star formation at z > 3: Bridging optically-dark and Lyman break galaxies with GOODS-ALMA

Posted by klaurent Tokyo

Kavli Affiliate: John Silverman | First 5 Authors: Mengyuan Xiao, David Elbaz, Carlos Gómez-Guijarro, Lucas Leroy, Longji Bing | Summary: Our current understanding of the cosmic star formation history at z>3 is primarily based on UV-selected galaxies (i.e., LBGs). Recent studies of H-dropouts revealed that we may be missing a large amount of star formation […]


Continue.. The hidden side of cosmic star formation at z > 3: Bridging optically-dark and Lyman break galaxies with GOODS-ALMA

Eccentricity to the rescue! Detecting Accelerating Eccentric Binaries in the LISA Band

Posted by klaurent Peking

Kavli Affiliate: Xian Chen | First 5 Authors: Zeyuan Xuan, Smadar Naoz, Xian Chen, , | Summary: Many gravitational wave (GW) sources in the LISA band are expected to have non-negligible eccentricity. Furthermore, many of them can undergo acceleration because they reside in the presence of a tertiary. Here we develop analytical and numerical methods […]


Continue.. Eccentricity to the rescue! Detecting Accelerating Eccentric Binaries in the LISA Band

TF08 Snowmass Report: BSM Model Building

Posted by klaurent Tokyo

Kavli Affiliate: Hitoshi Murayama | First 5 Authors: Patrick J. Fox, Graham D. Kribs, Hitoshi Murayama, Amin Aboubrahim, Prateek Agrawal | Summary: We summarize the state of Beyond the Standard Model (BSM) model building in particle physics for Snowmass 2021, focusing mainly on several whitepaper contributions to BSM model building (TF08) and closely related areas. […]


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Observational Constrains on Direct Electron Heating in Hot Accretion Flows from Sgr A* and M87*

Posted by klaurent Peking

Kavli Affiliate: Feng Yuan | First 5 Authors: Fu-Guo Xie, Ramesh Narayan, Feng Yuan, , | Summary: An important parameter in the theory of hot accretion flows around black holes is $delta$, which describes the fraction of “viscously” dissipated energy in the accretion flow that directly heats the electrons. The radiative efficiency of a hot […]


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CLAD: A Contrastive Learning based Approach for Background Debiasing

Posted by klaurent Peking

Kavli Affiliate: Ke Wang | First 5 Authors: Ke Wang, Harshitha Machiraju, Oh-Hyeon Choung, Michael Herzog, Pascal Frossard | Summary: Convolutional neural networks (CNNs) have achieved superhuman performance in multiple vision tasks, especially image classification. However, unlike humans, CNNs leverage spurious features, such as background information to make decisions. This tendency creates different problems in […]


Continue.. CLAD: A Contrastive Learning based Approach for Background Debiasing