Results 61 to 70 of about 67,060 (301)

Recent Star Formation in 0.5 < z < 1.5 Quiescent Galaxies

The Astrophysical Journal Letters
Observations of massive, quiescent galaxies reveal a relatively uniform evolution: following prolific star formation in the early Universe, these galaxies quench and transition to their characteristic quiescent state in the local Universe.
Michael J. Rutkowski, Bonnabelle Zabelle, Tyler Hagen, Anahita Alavi, Seth Cohen, Christopher Conselice, Norman Grogin, Yicheng Guo, Matthew Hayes, Sugata Kaviraj, Anton Koekemoer, Ray A. Lucas, Kameswara Bharadwaj Mantha, Alec Martin, Vihang Mehta, Bahram Mobasher, Nimish Hathi, Zhiyuan Ji, Kalina V. Nedkova, Robert O’Connell, Marc Rafelski, Claudia Scarlata, Harry I. Teplitz, Xin Wang, Rogier Windhorst, L. Y. Aaron Yung, The UVCANDELS Team   +26 more
doaj   +1 more source

Far-ultraviolet to Near-infrared Observations of SN 2023ixf: A High-energy Explosion Engulfed in Complex Circumstellar Material

The Astrophysical Journal Letters, 2023
We present early-phase panchromatic photometric and spectroscopic coverage spanning the far-ultraviolet to near-infrared regime of the nearest hydrogen-rich core-collapse supernova (SN) in the last 25 yr, SN 2023ixf.
Rishabh Singh Teja, Avinash Singh, Judhajeet Basu, G. C. Anupama, D. K. Sahu, Anirban Dutta, Vishwajeet Swain, Tatsuya Nakaoka, Utkarsh Pathak, Varun Bhalerao, Sudhanshu Barway, Harsh Kumar, Nayana A. J., Ryo Imazawa, Brajesh Kumar, Koji S. Kawabata   +15 more
doaj   +1 more source

OH+ in Diffuse Molecular Clouds [PDF]

, 2013
Near ultraviolet observations of OH+ and OH in diffuse molecular clouds reveal a preference for different environments. The dominant absorption feature in OH+ arises from a main component seen in CH+ (that with the highest CH+/CH column density ratio ...
Federman, S. R., Porras, A. J., Ritchey, A. M., Welty, D. E.   +3 more
core   +3 more sources

Temperature‐Tunable Cholesteric Liquid Crystal Optical Combiners for Extended Reality Applications

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
Recent advancements in extended reality highlight their potential to enhance traditional displays like liquid crystal displays and organic light‐emitting diode screens. This article introduces an innovative cholesteric liquid crystal‐based optical combiner for head‐mounted displays, enabling seamless transitions between augmented reality, virtual ...
Yuanjie Xia, Haobo Li, Marija Vaskeviciute, Daniele Faccio, Affar S. Karimullah, Hadi Heidari, Rami Ghannam   +6 more
wiley   +1 more source

Was there a (Super)nova in 1408?

The Astronomical Journal
The 1408 CE “guest star” recorded in Chinese historical texts presents a compelling case for identifying a historical stellar transient. While previous studies debated its nature as a meteor, comet, or nova, we reevaluate the event using original Ming ...
Boshun Yang, Nikolaus Vogt, Susanne M Hoffmann, (AAS Journals Data Editors)   +3 more
doaj   +1 more source

Development status of the LAUE project

, 2012
We present the status of LAUE, a project supported by the Italian Space Agency (ASI), and devoted to develop Laue lenses with long focal length (up to 100 meters), for hard X--/soft gamma--ray astronomy (80-600 keV).
Auricchio, N., Camattari, R., Carassiti, V., Caroli, E., Cassese, F., Chiozzi, S., Evangelisti, F., Ferrari, C., Frontera, F., Guidi, V., Liccardo, V., Mottini, S., Negri, B., Pecora, M., Recanatesi, L., Silvestri, S., Squerzanti, S., Statera, M., Valsan, V., Virgilli, E., Zappettini, R. A.   +20 more
core   +1 more source

Scalable Platform Enabling Reservoir Computing With Nanoporous Oxide Memristors for Image Recognition and Time Series Prediction

Advanced Intelligent Systems, EarlyView.
The approach of physical in materia computing incorporates parallel computing within the medium itself. A scalable and energy‐efficient, oxide‐based computational platform is realized in form of a nanoporous network of volatile niobium oxide memristors sandwiched between top and bottom metallic electrodes, and then tested for prediction and ...
Joshua Donald, Ben A. Johnson, Amir Mehrnejat, Alex Gabbitas, Arthur G. T. Coveney, Alexander G. Balanov, Sergey Savel’ev, Pavel Borisov   +7 more
wiley   +1 more source

Classification of a New X-Ray Catalog of Likely Counterparts to 4FGL-DR4 Unassociated Gamma-Ray Sources Using a Neural Network

The Astrophysical Journal
Our survey of the fourth Fermi Large Area Telescope catalog (4FGL) unassociated gamma-ray source regions using the X-Ray Telescope (XRT) and Ultraviolet/Optical Telescope (UVOT) on board the Neil Gehrels Swift Observatory (Swift) provides new XRT and ...
Kyle D. Neumann, Abraham D. Falcone, Stephen DiKerby, Sierra Deppe, Elizabeth C. Ferrara, Jamie A. Kennea, Brad Cenko, Eric Grove   +7 more
doaj   +1 more source

Constraints on Stellar Flare Energy Ratios in the NUV and Optical from a Multiwavelength Study of GALEX and Kepler Flare Stars

The Astrophysical Journal, 2023
We present a multiwavelength study of stellar flares on primarily G-type stars using overlapping time domain surveys in the near-ultraviolet (NUV) and optical regimes. The NUV (the Galaxy Evolution Explorer; GALEX) and optical (Kepler) wavelength domains
C. E. Brasseur, Rachel A. Osten, Isaiah I. Tristan, Adam F. Kowalski   +3 more
doaj   +1 more source

Rewiring Droplet Interface Synapses

Advanced Intelligent Systems, EarlyView.
Droplet interface synapses are used to create a neuromorphic network. Voltage pulses draw the droplets into contact and enable rewiring of the network through electrowetting. Results show that the heterogeneous droplet compositions and pore‐forming molecules may be used to tune the neuromorphic properties of the device using trapped charge as a form of
Sarita Shrestha, Eric Freeman
wiley   +1 more source