Inferences on relations between distant supermassive black holes and their hosts complemented by the galaxy fundamental plane

Posted by klaurent Tokyo

Kavli Affiliate: John Silverman | First 5 Authors: John Silverman, Junyao Li, Xuheng Ding, , | Summary: The realization of fundamental relations between supermassive black holes and their host galaxies would have profound implications in astrophysics. To add further context to studies of their co-evolution, an investigation is carried out to gain insight as to […]


Continue.. Inferences on relations between distant supermassive black holes and their hosts complemented by the galaxy fundamental plane

Testing High-Energy Emission Models for Blazars with X-ray Polarimetry

Posted by klaurent Stanford

Kavli Affiliate: Roger W. Romani | First 5 Authors: Abel L. Peirson, Ioannis Liodakis, Roger W. Romani, , | Summary: Both leptonic and hadronic emission processes may contribute to blazar jet emission; which dominates in blazars’s high energy emission component remains an open question. Some intermediate synchrotron peaked blazars transition from their low to high […]


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Bayesian Data Analysis for Sky-averaged 21-cm Experiments in the Presence of Ionospheric Effects

Posted by klaurent Cambridge

Kavli Affiliate: George Efstathiou | First 5 Authors: Emma Shen, Dominic Anstey, Eloy de Lera Acedo, Anastasia Fialkov, | Summary: The ionosphere introduces chromatic distortions on low frequency radio waves, and thus poses a hurdle for 21-cm cosmology. In this paper we introduce time-varying chromatic ionospheric effects on simulated antenna temperature data of a global […]


Continue.. Bayesian Data Analysis for Sky-averaged 21-cm Experiments in the Presence of Ionospheric Effects

Analyzing the Adoption Challenges of the Internet of Things (IoT) and Artificial Intelligence (AI) for Smart Cities in China

Posted by klaurent Peking

Kavli Affiliate: Ke Wang | First 5 Authors: Ke Wang, Yafei Zhao, Rajan Kumar Gangadhari, Zhixing Li, | Summary: Smart cities play a vital role in the growth of a nation. In recent years, several countries have made huge investments in developing smart cities to offer sustainable living. However, there are some challenges to overcome […]


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Revealing the Galaxy-Halo Connection Through Machine Learning

Posted by klaurent Chicago

Kavli Affiliate: Nickolay Y. Gnedin | First 5 Authors: Ryan Hausen, Brant E. Robertson, Hanjue Zhu, Nickolay Y. Gnedin, Piero Madau | Summary: Understanding the connections between galaxy stellar mass, star formation rate, and dark matter halo mass represents a key goal of the theory of galaxy formation. Cosmological simulations that include hydrodynamics, physical treatments […]


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Parametric Level-sets Enhanced To Improve Reconstruction (PaLEnTIR)

Posted by klaurent MIT

Kavli Affiliate: Eric Miller | First 5 Authors: Ege Ozsar, Misha Kilmer, Eric Miller, Eric de Sturler, Arvind Saibaba | Summary: In this paper, we consider the restoration and reconstruction of piecewise constant objects in two and three dimensions using PaLEnTIR, a significantly enhanced Parametric level set (PaLS) model relative to the current state-of-the-art. The […]


Continue.. Parametric Level-sets Enhanced To Improve Reconstruction (PaLEnTIR)

Parametric Level-sets Enhanced To Improve Reconstruction (PaLEnTIR)

Posted by klaurent MIT

Kavli Affiliate: Eric Miller | First 5 Authors: Ege Ozsar, Misha Kilmer, Eric Miller, Eric de Sturler, Arvind Saibaba | Summary: In this paper, we consider the restoration and reconstruction of piecewise constant objects in two and three dimensions using PaLEnTIR, a significantly enhanced Parametric level set (PaLS) model relative to the current state-of-the-art. The […]


Continue.. Parametric Level-sets Enhanced To Improve Reconstruction (PaLEnTIR)

Parametric Level-sets Enhanced To Improve Reconstruction (PaLEnTIR)

Posted by klaurent MIT

Kavli Affiliate: Eric Miller | First 5 Authors: Ege Ozsar, Misha Kilmer, Eric Miller, Eric de Sturler, Arvind Saibaba | Summary: We introduce PaLEnTIR, a significantly enhanced parametric level-set (PaLS) method addressing the restoration and reconstruction of piecewise constant objects. Our key contribution involves a unique PaLS formulation utilizing a single level-set function to restore […]


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Distances to Local Group Galaxies via Population II, Stellar Distance Indicators. II. The Fornax Dwarf Spheroidal

Posted by klaurent Chicago

Kavli Affiliate: Wendy L. Freedman | First 5 Authors: Elias K. Oakes, Taylor J. Hoyt, Wendy L. Freedman, Barry F. Madore, Quang H. Tran | Summary: We determine three independent Population II distance moduli to the Fornax dwarf spheroidal (dSph) galaxy, using wide-field, ground-based $VI$ imaging acquired with the Magellan-Baade telescope at Las Campanas Observatory. […]


Continue.. Distances to Local Group Galaxies via Population II, Stellar Distance Indicators. II. The Fornax Dwarf Spheroidal