Results 21 to 30 of about 5,584 (162)

What We Talk about When We Talk about Blazars?

Frontiers in Astronomy and Space Sciences, 2017
After the discovery of powerful relativistic jets from Narrow-Line Seyfert 1 Galaxies, and the understanding of their similarity with those of blazars, a problem of terminology was born.
Luigi Foschini
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Cosmology With Quasars: Predictions for eROSITA From a Quasar Hubble Diagram

Frontiers in Astronomy and Space Sciences, 2020
The effort for understanding the matter and energy content of the Universe and its evolution relies on different probes, such as cosmic background radiation, cluster lensing, supernovae.
Elisabeta Lusso, Elisabeta Lusso
doaj   +1 more source

Model simulation of heavy metals in river systems: case study the Negro river basin

Revista Facultad de Ingeniería Universidad de Antioquia, 2019
Este trabajo describe la aplicación de un modelo de calidad de agua para la simulación de metales pesados en sistemas fluviales. La estrategia propuesta incluye un enfoque de modelación 1D con la extensión del modelo QUASAR-ADZ para la representación del
Carlos Alberto Palacio-Tobón, Sara Cristina Vieira-Agudelo, Julio Cesar Saldarriaga-Molina, Luis Miguel Ruiz-Jaramillo   +3 more
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Confrontarsi con l’assenza

magazén, 2022
The city is a set of arbitrary visual experiences dispersed in time that must necessarily be integrated. In studying the absences, Bruno Toscano writes that “the city would appear to us in a less verisimilar facies if we resigned ourselves to consider
Farina, Arianna
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Gravitationally lensed quasars in Gaia – IV. 150 new lenses, quasar pairs, and projected quasars [PDF]

Monthly Notices of the Royal Astronomical Society, 2022
ABSTRACT We report the spectroscopic follow-up of 175 lensed quasar candidates selected using Gaia Data Release 2 observations following Paper III of this series. Systems include 86 confirmed lensed quasars and a further 17 likely lensed quasars based on imaging and/or similar spectra.
C Lemon, T Anguita, M W Auger-Williams, F Courbin, A Galan, R McMahon, F Neira, M Oguri, P Schechter, A Shajib, T Treu, A Agnello, C Spiniello   +12 more
openaire   +3 more sources

Intervista a Mauro Folci

Philosophy Kitchen, 2021
Intervista a Mauro ...
Mauro Folci, Stefano Oliva, Guido Baggio
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Monitoring and quantifying of water turbidity in the Albufera of Valencia during the 2024 flood using a machine learning model

Cuadernos de Geografía de la Universitat de València
Monitoring turbidity during flood events is vital for assessing the extent of water contamination, understanding sediment transport dynamics, and guiding emergency response efforts to mitigate ecological damage and health risks. In this study, we aim to
Masuma Chowdhury, Ana Belén Ruescas Orient, Ignacio De la Calle, Irene Laiz   +3 more
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COOL-LAMPS. Discovery of COOL J0335−1927, a Gravitationally Lensed Quasar at z = 3.27 with an Image Separation of 23.″3

The Astrophysical Journal Letters, 2023
We report the discovery of COOL J0335−1927, a quasar at z = 3.27 lensed into three images with a maximum separation of 23.″3 by a galaxy cluster at z = 0.4178. To date, this is the highest redshift wide-separation lensed quasar known.
Kate Napier, Michael D. Gladders, Keren Sharon, Håkon Dahle, Aidan P. Cloonan, Guillaume Mahler, Isaiah Escapa, Josh Garza, Andrew Kisare, Natalie Malagon, Simon Mork, Kunwanhui Niu, Riley Rosener, Jamar Sullivan Jr., Marie Tagliavia, Marcos Tamargo-Arizmendi, Raul Teixeira, Kabelo Tsiane, Grace Wagner, Yunchong Zhang, Megan Zhao   +20 more
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Statistics of Galactic-scale Quasar Pairs at Cosmic Noon

The Astrophysical Journal, 2023
The statistics of galactic-scale quasar pairs can elucidate our understanding of the dynamical evolution of supermassive black hole (SMBH) pairs, the duty cycles of quasar activity in mergers, or even the nature of dark matter, but they have been ...
Yue Shen, Hsiang-Chih Hwang, Masamune Oguri, Nianyi Chen, Tiziana Di Matteo, Yueying Ni, Simeon Bird, Nadia Zakamska, Xin Liu, Yu-Ching Chen, Kaitlin M. Kratter   +10 more
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Predicting the Yields of z > 6.5 Quasar Surveys in the Era of Roman and Rubin

The Astrophysical Journal, 2023
About 70 luminous quasars discovered at z > 6.5 are strongly biased toward the bright end, thus not providing a comprehensive view of quasar abundance beyond the cosmic dawn. We present the predicted results of the Roman/Rubin high-redshift quasar survey,
Wei Leong Tee, Xiaohui Fan, Feige Wang, Jinyi Yang, Sangeeta Malhotra, James E. Rhoads   +5 more
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