Results 71 to 80 of about 101,045 (324)

AGN STORM 2. VIII. Investigating the Narrow Absorption Lines in Mrk 817 Using HST-COS Observations

The Astrophysical Journal
We observed the Seyfert 1 galaxy Mrk 817 during an intensive multiwavelength reverberation mapping campaign for 16 months. Here, we examine the behavior of narrow UV absorption lines seen in the Hubble Space Telescope/Cosmic Origins Spectrograph spectra,
Maryam Dehghanian, Nahum Arav, Gerard A. Kriss, Missagh Mehdipour, Doyee Byun, Gwen Walker, Mayank Sharma, Aaron J. Barth, Misty C. Bentz, Benjamin D. Boizelle, Michael S. Brotherton, Edward M. Cackett, Elena Dalla Bontà, Gisella De Rosa, Gary J. Ferland, Carina Fian, Alexei V. Filippenko, Jonathan Gelbord, Michael R. Goad, Keith Horne, Yasaman Homayouni, Dragana Ilić, Michael D. Joner, Erin A. Kara, Shai Kaspi, Christopher S. Kochanek, Kirk T. Korista, Peter Kosec, Andjelka B. Kovačević, Hermine Landt, Collin Lewin, Ethan R. Partington, Luka Č. Popović, Daniel Proga, Daniele Rogantini, Matthew R. Siebert, Thaisa Storchi-Bergmann, Marianne Vestergaard, Timothy. Waters, Jian-Min Wang, Fatima Zaidouni, Ying Zu   +41 more
doaj   +1 more source

Artificial Intelligences: A Bridge Toward Diverse Intelligence and Humanity's Future

Advanced Intelligent Systems, EarlyView.
Many discussions of artificial intelligence fail to address deeper questions being raised by advances in developmental biology, neuroscience, bioengineering, and philosophy of mind. Novel beings, including technologically and biologically augmented humans, engineered life forms, hybrots, and others, require tools of the emerging field of diverse ...
Michael Levin
wiley   +1 more source

Multiwavelength Properties of Infrared-faint Radio Sources Based on Analysis of Their Spectral Energy Distribution

The Astrophysical Journal
Infrared-faint radio sources (IFRSs) are believed to be a rare class of radio-loud active galactic nuclei (AGNs) characterized by their high radio-to-infrared flux density ratios of up to several thousand.
Yihang Zhang, Lulu Fan, Tao An, Jun Yang, Weibin Sun, Haoran Yu, Yunkun Han   +6 more
doaj   +1 more source

The Connection between the Radio Jet and the γ-ray Emission in the Radio Galaxy 3C 120 and the Blazar CTA 102

Galaxies, 2016
We present multi-wavelength studies of the radio galaxy 3C 120 and the blazar CTA 102 during unprecedented γ-ray flares for both sources. In both studies the analysis of γ-ray data has been compared with a series of 43 GHz VLBA images from the VLBA-BU ...
Carolina Casadio, José L. Gómez, Svetlana G. Jorstad, Alan P. Marscher, Paola Grandi, Valeri M. Larionov, Matthew L. Lister, Paul S. Smith, Mark A. Gurwell, Anne Lähteenmäki, Iván Agudo, Sol N. Molina, Vishal Bala, Manasvita Joshi, Brian Taylor, Karen E. Williamson, Yuri Y. Kovalev, Tuomas Savolainen, Alexander B. Pushkarev, Arkady A. Arkharov, Dmitry A. Blinov, George A. Borman, Andrea Di Paola, Tatiana S. Grishina, Vladimir A. Hagen-Thorn, Ryosuke Itoh, Evgenia N. Kopatskaya, Elena G. Larionova, Liudmila V. Larionova, Daria A. Morozova, Elizaveta Rastorgueva-Foi, Sergey G. Sergeev, Merja Tornikoski, Ivan S. Troitsky, Clemens Thum, Helmut Wiesemeyer   +35 more
doaj   +1 more source

Field galaxies and their AGNs: Nature versus nurture [PDF]

Serbian Astronomical Journal, 2013
This review attempts to present most recent findings related to the very controversial question of which processes guide the flow of gas to the galactic centers where the accretion and growth of supermassive black holes occurs. Also, we put this
Micic M.
doaj   +1 more source

AI in Neurology: Everything, Everywhere, all at Once PART 2: Speech, Sentience, Scruples, and Service

Annals of Neurology, EarlyView.
Artificial intelligence (AI) applications are finding use in real‐world neurological settings. Whereas part 1 of this 3‐part review series focused on the birth of AI and its foundational principles, this part 2 review shifts gears to explore more practical aspects of neurological care.
Matthew Rizzo
wiley   +1 more source

Are There Higher Electron Densities in Narrow Emission Line Regions of Type-1 AGNs than in Type-2 AGNs?

The Astrophysical Journal
In the manuscript, we check properties of electron densities n _e traced by flux ratio R _sii of [S ii ] λ 6716 Å to [S ii ] λ 6731 Å in narrow emission line regions (NLRs) between Type-1 active galactic nucleus (AGN) and Type-2 AGN in SDSS Data Release ...
XueGuang Zhang
doaj   +1 more source

Ionised carbon and galaxy activity [PDF]

Astronomy & Astrophysics, 2009
9 pages, accepted by A& ...
openaire   +4 more sources

Usage of the term provenance in LIS literature: An Annual Review of Information Science and Technology (ARIST) paper

Journal of the Association for Information Science and Technology, EarlyView.
Abstract Provenance is the story of how something has come to be. In this paper, we provide a systematic literature review to categorize the various notions of provenance in Information Sciences. The goal of this review is to paint a broader picture of the multiple uses of provenance at play and to enhance our understanding of the importance of ...
Rhiannon Bettivia, Yi‐Yun Cheng, Michael R. Gryk   +2 more
wiley   +1 more source

Merging Galaxies with Active Nuclei [PDF]

Symposium - International Astronomical Union, 1999
We are investigating a sample of nearby interacting and merging galaxies showing starburst properties and/or nonthermal nuclear activity (e.g. Mrk 231, Mrk 739, Mrk 1027, NGC 2992, Arp 92).
openaire   +2 more sources