Results 21 to 30 of about 11,014 (187)

Markarian Multiwavelength Data Center (MMDC): A Tool for Retrieving and Modeling Multitemporal, Multiwavelength, and Multimessenger Data from Blazar Observations

The Astronomical Journal
The Markarian Multiwavelength Data Center ( MMDC ) is a web-based tool designed for accessing and retrieving multiwavelength and multimessenger data from blazar observations.
N. Sahakyan, V. Vardanyan, P. Giommi, D. Bégué, D. Israyelyan, G. Harutyunyan, M. Manvelyan, M. Khachatryan, H. Dereli-Bégué, S. Gasparyan   +9 more
doaj   +1 more source

The NEO Surveyor Near-Earth Asteroid Known Object Model

The Planetary Science Journal, 2023
The known near-Earth object (NEO) population consists of over 32,000 objects, with a yearly discovery rate of over 3000 NEOs per year. An essential component of the next generation of NEO surveys is an understanding of the population of known objects ...
Tommy Grav, Amy K. Mainzer, Joseph R. Masiero, Dar W. Dahlen, Tim Spahr, William F. Bottke, Frank J. Masci   +6 more
doaj   +1 more source

Data modeling for virtual observatory data mining [PDF]

, 2004
We propose a novel approach for index-tagging Virtual Observatory data files with descriptive statistics enabling rapid data mining and mathematical modeling.
Edwards, Matthew, Quinn, Peter J., Handley, James, Hons, Alex, Bridger, Alan, Jaenisch, Holger M., Filipovic, Miroslav, White, Graeme L., Lim, Albert C., Deragopian, Gary, Schneider, Mark   +10 more
core  

CSST-PSFNet: A Point-spread Function Reconstruction Model for the CSST Based on Deep Learning

The Astrophysical Journal Supplement Series
This paper presents CSST-PSFNet , a deep learning method for high-fidelity point-spread function (PSF) reconstruction developed for the Chinese Space Station Survey Telescope (CSST).
Peipei Wang, Peng Wei, Chao Liu, Rui Wang, Feng Wang, Xin Zhang   +5 more
doaj   +1 more source

MGGPOD: a Monte Carlo Suite for Modeling Instrumental Line and Continuum Backgrounds in Gamma-Ray Astronomy [PDF]

, 2004
Intense and complex instrumental backgrounds, against which the much smaller signals from celestial sources have to be discerned, are a notorious problem for low and intermediate energy gamma-ray astronomy (approximately 50 keV - 10 MeV).
Harris, M. J., Sturner, S., Teegarden, B. J., Ferguson, C., Weidenspointner, G.   +4 more
core  

Lux: A Generative, Multioutput, Latent-variable Model for Astronomical Data with Noisy Labels

The Astronomical Journal
The large volume of spectroscopic data available now and from near-future surveys will enable high-dimensional measurements of stellar parameters and properties. Current methods for determining stellar labels from spectra use physics-driven models, which
Danny Horta, Adrian M. Price-Whelan, David W. Hogg, Melissa K. Ness, Andrew R. Casey   +4 more
doaj   +1 more source

GRANDMA and HXMT Observations of GRB 221009A: The Standard Luminosity Afterglow of a Hyperluminous Gamma-Ray Burst—In Gedenken an David Alexander Kann

The Astrophysical Journal Letters, 2023
Object GRB 221009A is the brightest gamma-ray burst (GRB) detected in more than 50 yr of study. In this paper, we present observations in the X-ray and optical domains obtained by the GRANDMA Collaboration and the Insight Collaboration.
D. A. Kann, S. Agayeva, V. Aivazyan, S. Alishov, C. M. Andrade, S. Antier, A. Baransky, P. Bendjoya, Z. Benkhaldoun, S. Beradze, D. Berezin, M. Boër, E. Broens, S. Brunier, M. Bulla, O. Burkhonov, E. Burns, Y. Chen, Y. P. Chen, M. Conti, M. W. Coughlin, W. W. Cui, F. Daigne, B. Delaveau, H. A. R. Devillepoix, T. Dietrich, D. Dornic, F. Dubois, J.-G. Ducoin, E. Durand, P.-A. Duverne, H.-B. Eggenstein, S. Ehgamberdiev, A. Fouad, M. Freeberg, D. Froebrich, M. Y. Ge, S. Gervasoni, V. Godunova, P. Gokuldass, E. Gurbanov, D. W. Han, E. Hasanov, P. Hello, T. Hussenot-Desenonges, R. Inasaridze, A. Iskandar, N. Ismailov, A. Janati, T. Jegou du Laz, S. M. Jia, S. Karpov, A. Kaeouach, R. W. Kiendrebeogo, A. Klotz, R. Kneip, N. Kochiashvili, N. Kunert, A. Lekic, S. Leonini, C. K. Li, W. Li, X. B. Li, J. Y. Liao, L. Logie, F. J. Lu, J. Mao, D. Marchais, R. Ménard, D. Morris, R. Natsvlishvili, V. Nedora, K. Noonan, K. Noysena, N. B. Orange, P. T. H. Pang, H. W. Peng, C. Pellouin, J. Peloton, T. Pradier, O. Pyshna, Y. Rajabov, S. Rau, C. Rinner, J.-P. Rivet, F. D. Romanov, P. Rosi, V. A. Rupchandani, M. Serrau, A. Shokry, A. Simon, K. Smith, O. Sokoliuk, M. Soliman, L. M. Song, A. Takey, Y. Tillayev, L. M. Tinjaca Ramirez, I. Tosta e Melo, D. Turpin, A. de Ugarte Postigo, S. Vanaverbeke, V. Vasylenko, D. Vernet, Z. Vidadi, C. Wang, J. Wang, L. T. Wang, X. F. Wang, S. L. Xiong, Y. P. Xu, W. C. Xue, X. Zeng, S. N. Zhang, H. S. Zhao, X. F. Zhao   +115 more
doaj   +1 more source

Radio Astronomy Data Model for Single-Dish Multiple-Feed Telescopes, and Robledo Archive Architecture

, 2008
6 pages, 2 figures, to appear in the accompanying CD-ROM to Highlights of Spanish Astrophysics IV, 2007, eds. F. Figueras, J.M. Girart, M. Hernanz, C. Jordi (Springer)
Morata, O., Suarez, O., Solano, E., Rodrigo, C., Gutierrez, R., Leon, S., Verdes-Montenegro, L., Gomez, J., Garcia, E., Santander-Vela, J.   +9 more
openaire   +2 more sources

Analysis of the astroclimate parameters associated with the tropospheric conditions and their time evolution at Roque de Los Muchachos Observatory [PDF]

, 2012
The early 1970's saw the start of a new era in astronomy with the rst approach to building large telescopes (2 to 5 meters class telescope) and locating them in the right places.
GUERRA-RAMON, JUAN,CARLOS, Guerra-Ramon, Juan Carlos   +1 more
core  

Cross-survey Image Transformation: Enhancing SDSS and DECaLS Images to Near-HSC Quality for Advanced Astronomical Analysis

The Astrophysical Journal Supplement Series
This study focuses on transforming galaxy images between astronomical surveys, specifically enhancing images from the Sloan Digital Sky Survey (SDSS) and the Dark Energy Camera Legacy Survey (DECaLS) to achieve quality comparable to the Hyper Suprime-Cam
Zhijian Luo, Shaohua Zhang, Jianzhen Chen, Zhu Chen, Liping Fu, Hubing Xiao, Wei Du, Chenggang Shu   +7 more
doaj   +1 more source