Results 21 to 30 of about 1,477 (175)

LBT Italia: Current Achievements and Future Directions

Instruments
The Large Binocular Telescope (LBT) is a world-leading astronomical observatory, where the Italian partnership has played an important role in increasing the telescope’s productivity, both through an optimized observing strategy and through peer-reviewed
Silvia Tosi, Ester Marini, Felice Cusano, Andrea Rossi, Roberto Speziali, Roberta Carini   +5 more
doaj   +1 more source

Detection of extrasolar planet WASP-10b by differential photometry using amateur optics

Defense and Security Studies
This study presents the detection and characterization of the exoplanet WASP-10b using differential photometry performed with amateur astronomical equipment.
Alan Catovic, Dzan Jasarevic
doaj   +1 more source

Optical Properties of Light-Scattering Standards for CCD Photometry

Sensors, 2023
This paper analyzes the light-scattering standards currently used for calibration (verification) and systematic research in photo and spectrophotometry tools. The application specificities in studying the diffuse reflected and transmitted light during biomedical CCD photometry are considered.
Denys Bondariev, Natalia Bezugla, Pawel Komada, Nataliia Stelmakh, Mykhailo Bezuglyi   +4 more
openaire   +3 more sources

Photometry and Spectroscopy of the GRB 970508 Optical Counterpart

Science, 1998
An optical transient within the error box of the gamma ray burst GRB 970508 was imaged 4 hours after the event. It displayed a strong ultraviolet excess, and reached maximum brightness 2 days later. The optical spectra did not show any emission lines, and no variations on time scales of minutes were observed for 1 hour during the decline phase ...
A J, Castro-Tirado, J, Gorosabel, N, Benitez, C, Wolf, R, Fockenbrock, E, Martinez-Gonzalez, H, Kristen, A, Broeils, H, Pedersen, J, Greiner, E, Costa, M, Feroci, L, Piro, F, Frontera, L, Nicastro, E, Palazzi, C, Bartolini, A, Guarnieri, N, Masetti, A, Piccioni, M, Mignoli, M, Wold, M, Lacy, K, Birkle, T, Broadhurst, S, Brandt, N, Lund   +26 more
openaire   +3 more sources

Optical photometry of the UCM lists I and II [PDF]

Astronomy & Astrophysics, 2001
We present Johnson B surface photometry for the UCM Survey galaxies. One-dimensional bulge-disk decomposition is attempted, discussing on fitting functions and computational procedures. The results from this decomposition, jointly with concentration indices and an asymmetry coefficient, are employed to study the morphological properties of these ...
Pérez González, Pablo Guillermo, Gallego Maestro, Jesús, Zamorano Calvo, Jaime, Gil De Paz, Armando   +3 more
openaire   +3 more sources

MODERNIZATION OF AZT-22 TELESCOPE OF MAIDANAK HIGH-ALTITUDE OBSERVATORY: TESTING RESULTS

Radio Physics and Radio Astronomy, 2014
The AZT-22 telescope, equipped with the ML09000-65 CCD camera, has shown to be capable of obtaining high-quality images of astronomical objects and thus solving a wide range of observational tasks.
A. V. Sergeev, O. A. Burkhonov, V. N. Dudinov, A. P. Zheleznyak, Y. N. Krugly, I. E. Molotov, V. M. Shulga, S. A. Ehgamberdiev, V. V. Konichek, A. E. Kochetov   +9 more
doaj   +1 more source

Evaluation of Uniformity and Glare Improvement with Low Energy Efficiency Losses in Street Lighting LED Luminaires Using Laser-Sintered Polyamide-Based Diffuse Covers

Energies, 2018
Energy saving in street lighting is garnering more interest and has become a priority in municipal management. Therefore, LED luminaires are gradually becoming prevalent in our cities.
Alfonso Gago-Calderón, Manuel Jesús Hermoso-Orzáez, Jose Ramon De Andres-Diaz, Guillermo Redrado-Salvatierra   +3 more
doaj   +1 more source

Optical photometry of the UCM Lists I and II [PDF]

Astronomy and Astrophysics Supplement Series, 2000
We present Johnson B CCD photometry for the whole sample of galaxies of the Universidad Complutense de Madrid (UCM) Survey Lists I and II. They constitute a well-defined and complete sample of galaxies in the Local Universe with active star formation. The data refer to 191 SO to Irr galaxies at an averaged redshift of 0.027, and complement the already ...
Pérez González, Pablo Guillermo, Zamorano Calvo, Jaime, Gallego Maestro, Jesús, Gil De Paz, Armando   +3 more
openaire   +2 more sources

Quantifying the Contamination from nearby Stellar Companions in Gaia DR3 Photometry

The Astronomical Journal
Identifying and removing binary stars from stellar samples is a crucial but complicated task. Regardless of how carefully a sample is selected, some binaries will remain and complicate interpretation of results, especially via flux contamination of ...
Kendall Sullivan, Adam L. Kraus, Travis A. Berger, Daniel Huber   +3 more
doaj   +1 more source

One‐Dimensional Materials Supported in Two‐Dimensional Van der Waals Metal–Organic Frameworks with Optical Anisotropy Switching via Twist‐Engineering

Advanced Materials, EarlyView.
We introduce a molecular strategy to assemble one‐dimensional (1D) materials into two‐dimensional (2D) van der Waals metal–organic frameworks (MOFs). Crystals of [FeX(pzX)(bpy)] (X = Cl, F) form anisotropic 2D layers that can be mechanically exfoliated into thin sheets.
Eleni C. Mazarakioti, Carla Boix‐Constant, Iván Gómez‐Muñoz, Diego López‐Alcalá, Sergio Revuelta, Marco Ballabio, Vasileios Balos, José J. Baldoví, Enrique Cánovas, Josep Canet‐Ferrer, Guillermo Mínguez Espallargas, Samuel Mañas‐Valero, Eugenio Coronado   +12 more
wiley   +1 more source