Zobrazeno 1 - 10
of 3 006
pro vyhledávání: '"Loli A"'
Sparse-view Computed Tomography (CT) is an emerging protocol designed to reduce X-ray dose radiation in medical imaging. Traditional Filtered Back Projection algorithm reconstructions suffer from severe artifacts due to sparse data. In contrast, Mode
Externí odkaz:
http://arxiv.org/abs/2412.01703
We consider a family of conforming space-time discretizations for the wave equation based on a first-order-in-time formulation employing maximal regularity splines. In contrast with second-order-in-time formulations, which require a CFL condition to
Externí odkaz:
http://arxiv.org/abs/2411.00650
Autor:
Fries, Logan B., Trump, Jonathan R., Horne, Keith, Davis, Megan C., Grier, Catherine J., Shen, Yue, Anderson, Scott F., Dwelly, Tom, Homayouni, Y., Morrison, Sean, Runnoe, Jessie C., Trakhtenbrot, Benny, Assef, Roberto J., Bizyaev, Dmitry, Brandt, W. N., Breiding, Peter, Browstein, Joel, Chakraborty, Priyanka, Hall, P. B., Koekemoer, Anton M., Ibarra-Medel, Héctor J., Martínez-Aldama, Mary Loli, Negrete, C. Alenka, Pan, Kaike, Ricci, Claudio, Scheider, Donald P., Sharp, Hugh W., Smith, Theodore B., Stone, Zachary, Temple, Matthew J.
We present a velocity-resolved reverberation mapping analysis of the hypervariable quasar RM160 (SDSS J141041.25+531849.0) at z = 0.359 with 153 spectroscopic epochs of data representing a ten-year baseline (2013-2023). We split the baseline into two
Externí odkaz:
http://arxiv.org/abs/2409.12229
We consider the focusing generalized Hartree equation in $H^1(\R^3)$ with a potential, \begin{equation*} iu_t + \Delta u - V(x)u + (I_\gamma \ast |u|^p )|u|^{p-2} u=0, \end{equation*} where $I_\gamma = \frac{1}{|x|^{3-\gamma}}$, $p \geq 2$ and $\gamm
Externí odkaz:
http://arxiv.org/abs/2409.10769
Autor:
Floris, Alberto, Pandey, Ashwani, Czerny, Bozena, Aldama, Mary Loli Martinez, Panda, Swayamtrupta, Marziani, Paola, Prince, Raj
Contamination from singly ionized iron emission is one of the greatest obstacles to determining the intensity of emission lines in the UV and optical wavelength ranges. This study presents a comprehensive analysis of the FeII emission in the bright q
Externí odkaz:
http://arxiv.org/abs/2408.17323
Autor:
Stone, Zachary, Shen, Yue, Anderson, Scott F., Bauer, Franz, Brandt, W. N., Chakraborty, Priyanka, Davis, Megan C., Fries, Logan B., Grier, Catherine J., Hall, P. B., Koekemoer, Anton M., Martínez-Aldama, Mary Loli, Long, Knox, Morrison, Sean, Ricci, Claudio, Schneider, Donald P., Temple, Matthew J., Trump, Jonathan R.
We present dynamical modeling of the broad-line region (BLR) for the highly variable AGN SDSS J141041.25+531849.0 ($z = 0.359$) using photometric and spectroscopic monitoring data from the Sloan Digital Sky Survey Reverberation Mapping project and th
Externí odkaz:
http://arxiv.org/abs/2408.04789
Autor:
Loli, Rafael Cerna, Clerckx, Bruno
Optimization algorithms for wireless systems play a fundamental role in improving their performance and efficiency. However, it is known that the complexity of conventional optimization algorithms in the literature often exponentially increases with
Externí odkaz:
http://arxiv.org/abs/2407.01823
Autor:
Wheatley, Robert, Grier, Catherine J., Hall, Patrick B., Brandt, W. N., Lotz, Jonah, Schneider, D. P., Trump, Jonathan R., Shen, Yue, Seaton, Lucas M., Anderson, Scott F., Temple, Matthew J., Assef, Roberto, Fries, Logan B., Homayouni, Y., Kakkad, Darshan, Koekemoer, Anton M., Martınez-Aldama, Mary Loli, Negrete, C. Alenka, Ricci, Claudio, Bizyaev, Dmitry, Brownstein, Joel R., Morrison, Sean, Pan, Kaike
Publikováno v:
ApJ, Volume 968, Issue 2, Article #9 (2024)
We present the results of an investigation of a highly variable CIV broad absorption-line feature in the quasar SBS 1408+544 (z=2.337) that shows a significant shift in velocity over time. This source was observed as a part of the Sloan Digital Sky S
Externí odkaz:
http://arxiv.org/abs/2406.08622
This paper focuses on the development of a space-variant regularization model for solving an under-determined linear inverse problem. The case study is a medical image reconstruction from few-view tomographic noisy data. The primary objective of the
Externí odkaz:
http://arxiv.org/abs/2404.16900
Autor:
Pandey, Ashwani, Martínez-Aldama, Mary Loli, Czerny, Bożena, Panda, Swayamtrupta, Zajaček, Michal
We present a set of new theoretical Fe II templates for bright quasars covering a wavelength range of 1000-10000 \AA, based on the recent atomic database available in the C23.00 version of the photoionization code CLOUDY. We compute a grid of models
Externí odkaz:
http://arxiv.org/abs/2401.18052