Zobrazeno 1 - 10
of 80 739
pro vyhledávání: '"P b2 "'
Autor:
Pandey, Ashwani, Hu, Chen, Wang, Jian-Min, Czerny, Bozena, Chen, Yong-Jie, Songsheng, Yu-Yang, Wang, Yi-Lin, Zhang, Hao, Aceituno, Jesus
In our previous study, we identified a shift in the synchrotron peak frequency of the blazar B2 1308$+$326 from 10$^{12.9}$ Hz to 10$^{14.8}$ Hz during a flare, suggesting it could be a changing-look blazar (CLB). In this work, we investigate the CL
Externí odkaz:
http://arxiv.org/abs/2412.10552
The physical and chemical structure of Sagittarius B2, VIII. Full molecular line survey of hot cores
The giant molecular cloud complex Sagittarius B2 (Sgr~B2) in the central molecular zone of our Galaxy hosts several high-mass star formation sites, with Sgr~B2(M) and Sgr~B2(N) being the main centers of activity. This analysis aims to comprehensively
Externí odkaz:
http://arxiv.org/abs/2412.04040
Axion-photon oscillation effect provides a possible explanation for the presence of very-high-energy (VHE) $\gamma$-ray signals from distant sources. In this work, we propose a model-dependent method to select possible sources that may give sufficien
Externí odkaz:
http://arxiv.org/abs/2411.08577
Autor:
Bruzzo, Ugo, Dalakov, Peter
We obtain explicit formulae for the Donagi-Markman (Bryant-Griffiths, Yukawa) cubic for Hitchin systems of type $A_2$, $B_2$ and $G_2$. This is achieved by evaluating the quadratic residues in the Balduzzi-Pantev formula, using a previous result of o
Externí odkaz:
http://arxiv.org/abs/2412.17607
Relying on human experts to evaluate CEFR speaking assessments in an e-learning environment creates scalability challenges, as it limits how quickly and widely assessments can be conducted. We aim to automate the evaluation of CEFR B2 English speakin
Externí odkaz:
http://arxiv.org/abs/2408.12226
Publikováno v:
Journal of Materials Research and Technology, Vol 34, Iss , Pp 501-510 (2025)
Current study presents a way to control precipitates in a designed Fe–18Mn–8Al–1C–5Ni (wt.%) lightweight steel through annealing and aging treatment. The main objective is to obtain refined and homogeneously distributed B2 phases and intra-gr
Externí odkaz:
https://doaj.org/article/3c0225946817423f8dc83a78fcf1d150
Publikováno v:
A&A 688, A201 (2024)
Methanol is an abundant molecule in space. The column density of CH$_3^{18}$OH is in some star-forming regions so high that the search for CH$_3^{17}$OH is promising. But only very few transition frequencies of CH$_3^{17}$OH with a microwave accuracy
Externí odkaz:
http://arxiv.org/abs/2407.01139
We report the first arcsecond-resolution observations of the magnetic field in the mini starburst complex Sgr B2. SMA polarization observations revealed magnetic field morphology in three dense cores of Sgr B2 N(orth), M(ain), and S(outh). The total
Externí odkaz:
http://arxiv.org/abs/2406.11800
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-10 (2024)
Abstract The impact of vitamin B2 (riboflavin) intake on cognitive performance among older adults in the United States (US) remains inadequately understood. This study aimed to explore the association between vitamin B2 intake and cognitive performan
Externí odkaz:
https://doaj.org/article/722ea6cdeb9145889b618f89c3488210
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