Results 71 to 80 of about 97,087 (224)

Radio Galaxies at TeV Energies: Preface

Galaxies, 2020
The majority of the known extragalactic sky from TeV gamma-ray energies consists of blazars having plasma jets pointing in the direction of the line-of-sight, which results in a large Doppler boosting of their emission.
Dorit Glawion
doaj   +1 more source

Radio Galaxy Classification: #Tags, Not Boxes

Galaxies, 2021
After six decades of studying radio galaxies, we are now delightfully overwhelmed by their exponentially expanding numbers and the complexity of their structures.
Lawrence Rudnick
doaj   +1 more source

Compact radio sources and jet-driven AGN feedback in the early Universe: Constraints from integral-field spectroscopy [PDF]

, 2007
To investigate the impact of radio jets during the formation epoch of their massive host galaxies, we present an analysis of two massive, log(M_stel/ M_sun)~10.6 and 11.3, compact radio galaxies at z=3.5, TNJ0205+2242 and TNJ0121+1320.
A. Gilbert, Axon, Barnes, Begelman, Benson, Best, Bicknell, Blundell, Bonnet, Bullock, C. De Breuck, Capetti, Croton, De Breuck, De Breuck, De Breuck, De Breuck, De Breuck, De Young, Di Matteo, Downes, Holt, Holt, Hopkins, Inskip, Inskip, Inskip, Iwamuro, Kauffmann, Laing, M. D. Lehnert, McCarthy, Morganti, Murgia, N. P. H. Nesvadba, Nelson, Nesvadba, Nesvadba, O'Dea, O'Dea, Owsianik, Papadopoulos, Pedlar, Pounds, Readhead, Silk, Sulentic, Tadhunter, Tadhunter, Tadhunter, van Breugel, Villar-Martín, Villar-Martín, Villar-Martín, Villar-Martín, W. van Breugel, Wellman, Willott   +57 more
core   +2 more sources

Seedless One‐Pot Synthesis of Colloidal InAs Quantum Dots Enabling a High‐Accuracy Photoplethysmography Oximeter

Advanced Science, EarlyView.
A real‐time, non‐contact photoplethysmography (PPG) system based on InAs colloidal quantum dots (CQDs) synthesized via a seedless injection synthesis is demonstrated. The measured oxygen saturation shows considerable agreement with commercial PPG devices.
Beom Kwan Kim, Seungin Jee, Yongnam Ahn, In‐Suh Lee, Dongeon Kim, Seongchong Park, Yujin Jung, In‐Ho Bae, Se‐Woong Baek   +8 more
wiley   +1 more source

Optical Properties of Radio-selected Narrow Line Seyfert 1 Galaxies [PDF]

, 2006
We present results from the analysis of the optical spectra of 47 radio-selected narrow-line Seyfert 1 galaxies (NLS1s). These objects are a subset of the First Bright Quasar Survey (FBQS) and were initially detected at 20 cm (flux density limit ~1 mJy ...
Boller Th., Boller Th., Brandt W. N., Brandt W. N., D. J. Whalen, E. C. Moran, Fabian A. C., Grupe D., Grupe D., Pounds K. A., Puchnarewicz E. M., R. H. Becker, S. A. Laurent-Muehleisen, Siebert J.   +13 more
core   +2 more sources

Silicon‐Embedded Multifunctional Heterogeneous Integration for Miniaturized Photoplethysmography Detection Devices

Advanced Science, EarlyView.
ABSTRACT The multifunctional integration of chips with high flexibility and scalable manufacturing is crucial for enhancing chip performance, reducing chip size, and simplifying chip design. However, balancing volume, cost, flexibility, and functionality using traditional heterogeneous integration methods is challenging.
Lang Chen, Shizun Hu, Zhou Yang, Shitao Shen, Pan Zhang, Han Xu, Chi Zhang, Wei Wang   +7 more
wiley   +1 more source

The host galaxy/AGN connection. Brightness profiles of early-type galaxies hosting Seyfert nuclei

, 2007
[ABRIDGED] We recently presented evidence of a connection between the brightness profiles of nearby early-type galaxies and the properties of the AGN they host.
A. Capetti, Awaki, B. Balmaverde, Balmaverde, Balmaverde, Capetti, Capetti, Cappi, Chiaberge, Croton, de Ruiter, Di Matteo, Dunlop, Durret, Fabbiano, Faber, Feldmeier, Ferrarese, Ferrarese, Ferruit, Gebhardt, Graham, Graham, Gu, Hewitt, Ho, Ho, Häring, Jedrzejewski, Kellermann, Khochfar, Koski, Kriss, Kuraszkiewicz, Lauer, Levenson, Maiolino, Malaguti, Mannucci, Marconi, Matt, Milosavljevic, Molendi, Mulchaey, Mulchaey, Murayama, Nagar, Nelson, O'Brien, Pfefferkorn, Ravindranath, Reynolds, Risaliti, Roberts, Ryden, Shuder, Shuder, Storchi Bergmann, Terashima, Terashima, Terashima, Tremaine, Trujillo, Turner, Ulvestad, Veron-Cetty, Whittle, Whittle, Wilson, Wilson   +69 more
core   +1 more source

Hidden No More: Spotlight on Tidal Disruption Events in Active Galactic Nuclei

Astronomische Nachrichten, EarlyView.
ABSTRACT Tidal disruption events (TDEs) are typically discovered in previously quiescent galaxies. However, earlier studies have revealed a handful of TDEs occurring in pre‐existing active galactic nuclei (AGN). We discuss AT2019aalc, a promising TDE candidate in an AGN, and compare it to similar sources.
Patrik Milán Veres
wiley   +1 more source

The gaseous environments of radio galaxies [PDF]

New Astronomy Reviews, 2002
X-ray emission traces the gaseous environments of radio sources. The medium must be present for jet confinement, but what are its influence on jet fuelling, dynamics, propagation, and disruption? The observational situation is both complicated and enriched by radio sources being multi-component X-ray emitters, with several possible regions of non ...
openaire   +2 more sources

Extremely Red Radio Galaxies [PDF]

, 2001
At least half the radio galaxies at z>1 in the 7C Redshift Survey have extremely red colours (R-K>5), consistent with stellar populations which formed at high redshift (z>5). We discuss the implications of this for the evolution of massive galaxies in general and for the fraction of near-IR-selected EROs which host AGN, a result which is now ...
Willott, C, Rawlings, S, Blundell, K
openaire   +3 more sources