Zobrazeno 1 - 10
of 7 389
pro vyhledávání: '"JI, Xiang"'
Dual and lensed quasars are valuable astrophysical targets in many aspects. Dual quasars, considered as the precursors of supermassive black hole binaries, can provide crucial insights into how black hole mergers drive the growth of supermassive blac
Externí odkaz:
http://arxiv.org/abs/2412.08397
Autor:
Lin, Ruqiu, Zheng, Zhen-Ya, Jiang, Chunyan, Yuan, Fang-Ting, Ho, Luis C., Wang, Junxian, Jiang, Linhua, Rhoads, James E., Malhotra, Sangeeta, Barrientos, L. Felipe, Wold, Isak, Infante, Leopoldo, Zhu, Shuairu, Ji, Xiang, Fu, Xiaodan
Recently, the James Webb Space Telescope (JWST) has revealed a new class of high redshift (high-$z$, $z>4$) compact galaxies which are red in the rest-frame optical and blue in the rest-frame UV as V-shaped spectral energy distributions (SEDs), refer
Externí odkaz:
http://arxiv.org/abs/2412.08396
Autor:
Lin, Ruqiu, Zheng, Zhen-Ya, Yuan, Fang-Ting, Wang, Jun-Xian, Jiang, Chunyan, Jiang, Ning, Wang, Lingzhi, Jiang, Linhua, Ji, Xiang, Zhu, Shuairu, Fu, Xiaodan
Publikováno v:
2024SCPMA..6709811L
The scaling relation of central massive black holes (MBHs) and their host galaxies is well-studied for supermassive BHs (SMBHs, $M_{\rm BH}\ \ge 10^6\, M_{\rm \odot}$). However, this relation has large uncertainties in the mass range of the intermedi
Externí odkaz:
http://arxiv.org/abs/2409.20350
Neural Radiance Fields (NeRFs) have become increasingly popular because of their impressive ability for novel view synthesis. However, their effectiveness is hindered by the Rolling Shutter (RS) effects commonly found in most camera systems. To solve
Externí odkaz:
http://arxiv.org/abs/2407.10267
Accurate characterization of entropy plays a pivotal role in capturing reversible and irreversible heating in supercapacitors during charging/discharging cycles. However, numerical methods that can faithfully capture entropy variation in supercapacit
Externí odkaz:
http://arxiv.org/abs/2407.10050
Autor:
Li, Sha-Sha, Feng, Hai-Cheng, Liu, H. T., Bai, J. M., Ji, Xiang, Cheng, Cheng, Lu, Kai-Xing, Wang, Jian-Guo, Li, Rui
Publikováno v:
ApJ, 972, 105 (2024)
Broad emission lines of active galactic nuclei (AGNs) originate from the broad-line region (BLR), consisting of dense gas clouds in orbit around an accreting supermassive black hole. Understanding the geometry and kinematics of the region is crucial
Externí odkaz:
http://arxiv.org/abs/2407.05414
Autor:
Fourment, Mathieu, Macaulay, Matthew, Swanepoel, Christiaan J, Ji, Xiang, Suchard, Marc A, Matsen IV, Frederick A
Bayesian inference has predominantly relied on the Markov chain Monte Carlo (MCMC) algorithm for many years. However, MCMC is computationally laborious, especially for complex phylogenetic models of time trees. This bottleneck has led to the search f
Externí odkaz:
http://arxiv.org/abs/2406.18044
This work studies the challenge of aligning large language models (LLMs) with offline preference data. We focus on alignment by Reinforcement Learning from Human Feedback (RLHF) in particular. While popular preference optimization methods exhibit goo
Externí odkaz:
http://arxiv.org/abs/2406.04274
Autor:
Wang, Jiangtao, Zheng, Xudong, Pitner, Gregory, Ji, Xiang, Zhang, Tianyi, Yao, Aijia, Zhu, Jiadi, Palacios, Tomás, Li, Lain-Jong, Wang, Han, Kong, Jing
Electrostatic catalysis has been an exciting development in chemical synthesis (beyond enzymes catalysis) in recent years, boosting reaction rates and selectively producing certain reaction products. Most of the studies to date have been focused on u
Externí odkaz:
http://arxiv.org/abs/2404.02981
Motion blur is a frequently observed image artifact, especially under insufficient illumination where exposure time has to be prolonged so as to collect more photons for a bright enough image. Rather than simply removing such blurring effects, recent
Externí odkaz:
http://arxiv.org/abs/2404.01120