Results 131 to 140 of about 90,767 (300)

RESOLVING THE ACTIVE GALACTIC NUCLEUS AND HOST EMISSION IN THE MID-INFRARED USING A MODEL-INDEPENDENT SPECTRAL DECOMPOSITION [PDF]

, 2015
We present results on the spectral decomposition of 118 Spitzer Infrared Spectrograph (IRS) spectra from local active galactic nuclei (AGNs) using a large set of Spitzer/IRS spectra as templates.
A. Hernán-Caballero, A. Alonso-Herrero, E. Hatziminaoglou, H. Spoon, C. R. Almeida, Tanio Díaz Santos, S. Hönig, O. González-Martín, P. Esquej   +8 more
semanticscholar   +1 more source

Dissecting Photometric Redshift for Active Galactic Nucleus Using XMM- and Chandra-COSMOS Samples [PDF]

, 2011
In this paper, we release accurate photometric redshifts for 1692 counterparts to Chandra sources in the central square degree of the Cosmic Evolution Survey (COSMOS) field. The availability of a large training set of spectroscopic redshifts that extends
Capak, P., Kakazu, Y., Manohar, S., Masters, D., Salvato, M., Scoville, N., Shopbell, P.   +6 more
core  

A Proposed Circular Economy Readiness Framework for the Rail Sector, A Literature Review and Conceptual Framework

Business Strategy and the Environment, Volume 35, Issue 1, Page 1076-1096, January 2026.
ABSTRACT The circular economy (CE) offers a transformative approach to addressing global sustainability challenges, yet few frameworks integrate it with business strategy, systems thinking (ST) and asset management (AM), especially within critical infrastructure sectors like rail. This paper conducts a comprehensive literature review to assess existing
Carl Waring, Kapila Liyanage
wiley   +1 more source

The DELVE Quadruple Quasar Search. I. A Lensed Low-luminosity Active Galactic Nucleus

The Astronomical Journal
A quadruply lensed source, J125856.3–031944, has been discovered using the DELVE survey and Wide-field Infrared Survey Explorer W1–W2 colors. Follow-up direct imaging carried out with the Magellan Baade 6.5 m telescope is analyzed, as is spectroscopy ...
Paul L. Schechter, Dominique Sluse, Erik A. Zaborowski, Alex Drlica-Wagner, Cameron Lemon, Frederic Dux, Frederic Courbin, Angela Hempel, Martin Millon, Tommaso Treu, Raul Teixeira, Monika Adamów, Clecio R. Bom, Julio A. Carballo-Bello, Peter S. Ferguson, Robert A. Gruendl, David J. James, Clara E. Martínez-Vázquez, Pol Massana, Sidney Mau, Burçin Mutlu-Pakdil, Noëlia E. D. Noël, Andrew B. Pace, Joanna D. Sakowska, Guy S. Stringfellow, Erik J. Tollerud, A. Katherina Vivas, Alfredo Zenteno   +27 more
doaj   +1 more source

AGN/Starburst Connection

Acta Polytechnica CTU Proceedings, 2014
Two main physical processes characterize the activity in the nuclear region of active galaxies: an intense star formation (starburst, SB) and an Active Galactic Nucleus (AGN).
Eleonora Sani
doaj   +1 more source

Multiphase signatures of active galactic nucleus feedback in Abell 2597

Monthly Notices of the Royal Astronomical Society, 2012
We present new Chandra X-ray observations of the brightest cluster galaxy (BCG) in the cool-core cluster Abell 2597 (z= 0.0821). The data reveal an extensive kpc-scale X-ray cavity network as well as a 15-kpc filament of soft-excess gas exhibiting strong spatial correlation with archival Very Large Array radio data.
Tremblay, G., O’dea, C., Baum, S., Clarke, T., Sarazin, C., Bregman, J., Combes, F., Donahue, M., Edge, A., Fabian, A., Ferland, G., Mcnamara, B., Mittal, R., Oonk, J., Quillen, A., Russell, H., Sanders, J., Salomé, P., Voit, G., Wilman, R., Wise, M.   +20 more
openaire   +2 more sources

The nature of orbits in a prolate elliptical galaxy model with a bulge and a dense nucleus

, 2011
We study the transition from regular to chaotic motion in a prolate elliptical galaxy dynamical model with a bulge and a dense nucleus. Our numerical investigation shows that stars with angular momentum Lz less than or equal to a critical value Lzc ...
Caranicolas, Nicolaos D., Zotos, Euaggelos E.   +1 more
core   +1 more source

Mechanistic Understanding of Laser‐Induced Defect Engineering of Anisotropic Cobalt Oxide Spinel Platelets in Water

ChemCatChem, Volume 18, Issue 1, 15 January 2026.
Pulsed laser defect engineering in liquid (PUDEL) modifies anisotropic Co3O4 platelets by inducing lattice distortions and defects while enriching {111} surfaces with hydroxyl groups and tunes the catalytic activity of the Co3O4 platelets in electrocatalytic oxygen evolution and thermocatalytic selective oxidation reactions.
Dana Schellenburg, Thomas Bihnam, Carsten Placke‐Yan, Georg Bendt, Oleg Prymak, Takuma Sato, Dylan Jennings, Catalina Leiva‐Leroy, Dongsheng Zhang, Milen Nachev, Kapil Dhaka, Falonne Nkou, Ulrich Hagemann, Markus Heidelmann, Stephane Kenmoe, Kai S. Exner, Bernd Sures, Martin Muhler, Christian H. Liebscher, Alexander Schnegg, Stephan Schulz, Stephan Barcikowski, Sven Reichenberger   +22 more
wiley   +1 more source

XMM-Newton Conclusively Identifies an Active Galactic Nucleus in a Green Pea Galaxy

The Astrophysical Journal
Green Pea galaxies are a class of compact, low-mass, low-metallicity star-forming galaxies in the relatively local Universe. They are believed to be analogs of high-redshift galaxies that reionized the Universe, and, indeed, the James Webb Space ...
Peter G. Boorman, Jiří Svoboda, Daniel Stern, Bret D. Lehmer, Abhijeet Borkar, Murray Brightman, Hannah P. Earnshaw, Fiona A. Harrison, Konstantinos Kouroumpatzakis, Barbora Adamcová, Roberto J. Assef, Matthias Ehle, Brian Grefenstette, Romana Grossová, Maitrayee Gupta, Elias Kammoun, Taiki Kawamuro, Lea Marcotulli, Romana Mikušincová, Matthew J. Middleton, Edward Nathan, Joanna M. Piotrowska, Jean J. Somalwar, Núria Torres-Albà, Dominic J. Walton, Daniel R. Weisz   +25 more
doaj   +1 more source

Stress‐Induced Reorganization of Proteasomes Through Diffusion and Cytoskeleton‐Dependent Mechanisms

Small, Volume 22, Issue 2, 8 January 2026.
Proteotoxic stress induced by alpha‐synuclein aggregates drives rapid, cytoskeleton‐dependent re‐localization of mammalian proteasomes and formation of transient aggregate‐associated droplets (TAADs). Single‐molecule localization microscopy, light‐sheet imaging, nanopipette injection, single‐cell patch clamp, and single‐particle tracking reveal a ...
Michael J Morten, Yu Zhang, Bing Li, Jonathan X Meng, Kun Jiang, Liina Sirvio, Ji‐Eun Lee, Anna H Lippert, Matilda Burridge, Katiuska Daniela Pulgar Prieto, Alexander R Carr, Aleks Ponjavic, Steven F Lee, Daniel Finley, David Klenerman, Yu Ye   +15 more
wiley   +1 more source