Results 21 to 30 of about 859,267 (172)

The Interaction between AGN and Starburst Activity in the Circumnuclear Region of NGC 7469 as Viewed with JWST

The Astrophysical Journal Letters, 2023
We combine mid-infrared diagnostics obtained from integral-field-unit observations taken with Mid-Infrared Instrument/Medium Resolution Spectrograph on the James Webb Space Telescope with cold molecular gas information derived from Atacama Large ...
Lulu Zhang, Luis C. Ho
doaj   +1 more source

AI‐Enhanced System for Diabetic Foot Ulcer Localization and Classification Using Multi‐Scale Neural CNN Model

Health Science Reports, Volume 9, Issue 9, September 2026.
ABSTRACT Background and Aims Diabetic foot ulcers (DFUs), which heal slowly because of inadequate blood supply, are among the serious infections and chronic foot problems that can result from diabetes mellitus (DM). The primary consequence of DFU, which can result in amputation if left untreated.
Md. Nur‐A‐Alam, Md. Anwar Hussen Wadud, Mostofa Kamal Nasir, Khandaker Mohammad Mohi Uddin   +3 more
wiley   +1 more source

Mapping the dynamics, star-formation rates, and chemical properties of galaxies with integral field spectroscopy [PDF]

, 2005
Major advances in the development of instruments for eight and ten meter class telescopes are revolutionising our understanding of galaxy formation. In particular, Integral Field Spectrographs (which produce a three dimensional {x, y, velocity) map of a ...
Swinbank, Anthony Mark, Swinback, Anthony Mark   +1 more
core  

The ORCA‐TWIN qCMOS Experiment I. Science Case and Commissioning at Calar Alto Observatory

Astronomische Nachrichten, Volume 347, Issue 7, August 2026.
ABSTRACT We describe a pilot study to explore a new generation of fast and low noise CMOS image sensors for time domain astronomy, using two remote telescopes with a baseline of 1635 km. The experiment involves direct imaging with novel qCMOS image sensor technology that combines fast readout with sub‐electron readout noise.
Martin M. Roth, Paško Roje, Stella Vješnica, Stefan Cikota, Alex J. Brown, Mike Kretlow, Marco Azzaro, Santiago Reinhart, Jesús Aceituno, Harry Dawson, Carsten Denker, Torsten Enßlin, Stephan Geier, Thomas Granzer, Thomas Kupfer, Gianluca Li Causi, Samaya Nissanke, José Luis Ortiz, Fernando Pedichini, Katja Poppenhäger, Axel Schwope   +20 more
wiley   +1 more source

The THESEUS Space Mission and the Infrared Telescope Calibration Unit

Astronomische Nachrichten, Volume 347, Issue 6, July 2026.
ABSTRACT The Transient High‐Energy Sky and Early Universe Surveyor (THESEUS) is an ESA M7 mission concept currently in Phase A, designed to exploit gamma‐ray bursts to probe the early Universe while advancing multi‐messenger and time‐domain astrophysics. To achieve its ambitious goals, THESEUS will combine wide‐band x‐ray and gamma‐ray monitors with an
András Péter Joó, Rebeka Gyöngyi Kiss, Lorenzo Amati, Bendegúz Koncz, Örs Detre, Gyula Zilizi, Zsolt Bagoly, István I. Rácz, Sándor Pintér, L. Viktor Tóth   +9 more
wiley   +1 more source

Unveiling the Distant Universe: Characterizing z ≥ 9 Galaxies in the First Epoch of COSMOS-Web

The Astrophysical Journal
We report the identification of 15 galaxy candidates at z ≥ 9 using the initial COSMOS-Web JWST observations over 77 arcmin ^2 through four Near Infrared Camera filters (F115W, F150W, F277W, and F444W) with an overlap with the Mid-Infrared Imager (F770W)
Maximilien Franco, Hollis B. Akins, Caitlin M. Casey, Steven L. Finkelstein, Marko Shuntov, Katherine Chworowsky, Andreas L. Faisst, Seiji Fujimoto, Olivier Ilbert, Anton M. Koekemoer, Daizhong Liu, Christopher C. Lovell, Claudia Maraston, Henry Joy McCracken, Jed McKinney, Brant E. Robertson, Micaela B. Bagley, Jaclyn B. Champagne, Olivia R. Cooper, Xuheng Ding, Nicole E. Drakos, Andrea Enia, Steven Gillman, Ghassem Gozaliasl, Santosh Harish, Christopher C. Hayward, Michaela Hirschmann, Shuowen Jin, Jeyhan S. Kartaltepe, Vasily Kokorev, Clotilde Laigle, Arianna S. Long, Georgios Magdis, Guillaume Mahler, Crystal L. Martin, Richard Massey, Bahram Mobasher, Louise Paquereau, Alvio Renzini, Jason Rhodes, R. Michael Rich, Kartik Sheth, John D. Silverman, Martin Sparre, Margherita Talia, Benny Trakhtenbrot, Francesco Valentino, Aswin P. Vijayan, Stephen M. Wilkins, Lilan Yang, Jorge A. Zavala   +50 more
doaj   +1 more source

The Early Ophthalmic Effects of Vatinoxan in Healthy Detomidine‐Sedated Horses

Veterinary Ophthalmology, Volume 29, Issue 4, July 2026.
ABSTRACT Objective To evaluate the short‐term ophthalmic effects of vatinoxan, a peripherally selective alpha2‐adrenoceptor antagonist, in detomidine‐sedated horses. Animals Studied Seven healthy horses without ophthalmic disease in a randomized, masked, two‐period crossover study design, with a ≥ 7‐day rest period.
Minna Pauliina Mustikka, Ninja Pauliina Karikoski, Marja Riitta Raekallio, Elle Sofia Teppo, Simon Anton Pot, Juhana Honkavaara   +5 more
wiley   +1 more source

The clustering of galaxies in hierarchical galaxy formation models [PDF]

, 2010
Galaxy clustering encodes information about the values of cosmological parameters and also about the physical processes behind galaxy formation and evolution. The GALFORM semi-analytical model is the theoretical approach we used to model galaxy formation.
KIM, HAN,SIK, Kim, Han Sik
core  

Repeating Nuclear Transients From Repeating Partial Tidal Disruption Events

Astronomische Nachrichten, Volume 347, Issue 5, June 2026.
ABSTRACT Extragalactic nuclear transients that exhibit repeating outbursts can be modeled as the repeated dynamical interaction between bound stars and supermassive black holes (SMBHs). A subset of these transients, with recurrence timescales of months‐to‐years, have been explained as accretion flares from the repeated tidal stripping of a star by an ...
Ananya Bandopadhyay, Eric R. Coughlin, Julia Fancher, C. J. Nixon, Dheeraj R. Pasham   +4 more
wiley   +1 more source

Optical polarimetry studies of Seyfert galaxies [PDF]

, 1999
Optical imaging polarimetry has been performed on seven nearby Seyfert galaxies, three with face-on and four with edge-on host galaxies of various morphological classifications.
Felton, Michelle Ann
core