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The mesoscale model Meso-NH is used to simulate the optical turbulence at Mt Graham (Arizona, USA), site of the Large Binocular Telescope. Measurements of the CN2-profiles obtained with a generalized scidar from 41 nights are used to…

Instrumentation and Methods for Astrophysics · Physics 2011-05-16 S. Hagelin , E. Masciadri , F. Lascaux

The fraction of available telescope time is one of the most important requirements for selecting astronomical sites affecting the performance of ground based telescopes. A quantitative survey of clouds coverage at La Palma and Mt.Graham is…

Instrumentation and Methods for Astrophysics · Physics 2015-05-14 A. della Valle , Y. Maruccia , S. Ortolani , V. Zitelli

The Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) has acquired tens of millions of low-resolution spectra of stars. This paper investigated the parameter estimation problem for these spectra. To this end, we proposed a…

Solar and Stellar Astrophysics · Physics 2023-12-27 Xiangru Li , Boyu Lin

The diffuse, unresolved sky provides most of the photons that the Hubble Space Telescope (HST) receives, yet remains poorly understood. HST Archival Legacy program SKYSURF aims to measure the 0.2-1.6 $\mu$m sky surface brightness (sky-SB)…

For over a decade, scientists at NASA's Jet Propulsion Laboratory (JPL) have been recording measurements from the Martian surface as a part of the Mars Exploration Rovers mission. One quantity of interest has been the opacity of Mars's…

Instrumentation and Methods for Astrophysics · Physics 2017-06-28 Daniele Bellutta

The intense activity of cratering on the Moon and in the inner regions of the solar system was accomplished during the first 10^9 years [1]. Occasionally, some impact events occur even nowadays. In Section 1, we treat, from a historical…

Astrophysics · Physics 2007-05-23 Giovanni Imponente , Costantino Sigismondi

The number of satellites on low orbit has dramatically increased over the past years, raising concerns among the astronomical community about their impact on observations. Spectroscopic observations represent a large fraction of…

Instrumentation and Methods for Astrophysics · Physics 2024-01-19 Olivier R. Hainaut Sabine Moehler

In this paper we analyse the measurements of the brightness of the night sky above the CMO SAI MSU in the visible and near-infrared range made in 2019-2014. In 2023-2024 the median zenith brightness of the moonless night sky was 21.31 mag…

Instrumentation and Methods for Astrophysics · Physics 2025-01-24 I. A. Komarova , A. M. Tatarnikov , A. V. Sharonova , A. A. Belinskii , N. A. Maslennikova , N. P. Ikonnikova , N. A. Burlak

The shadowing of high-energy cosmic rays by the Moon has been observed with a significance of 9.4 standard deviations with the L3+C muon spectrometer at CERN. A significant effect of the Earth magnetic field is observed. Since no event…

Astrophysics · Physics 2008-11-26 L3 Collaboration , P. Achard

Expected to be of the highest survey power telescope in the northern hemisphere, the Wide Field Survey Telescope (WFST) will begin its routine observations of the northern sky since 2023. WFST will produce a lot of scientific data to…

Instrumentation and Methods for Astrophysics · Physics 2023-09-26 Lei Lei , Qing-Feng Zhu , Xu Kong , Ting-Gui Wang , Xian-Zhong Zheng , Dong-Dong Shi , Lu-Lu Fan , Wei Liu

Under stable atmospheric conditions, the zenithal brightness of the urban sky varies throughout the night following the time course of the anthropogenic emissions of light. Different types of artificial light sources (e.g. streetlights,…

Instrumentation and Methods for Astrophysics · Physics 2018-11-12 Salvador Bará , Ángel Rodríguez-Arós , Marcos Pérez , Borja Tosar , Raul C. Lima , Alejandro Sánchez de Miguel , Jaime Zamorano

In the last decade numerous Sky Quality Meters (SQMs) were installed throughout the globe, aiming to assess the temporal change of the night sky brightness (NSB), and thus the change in light pollution. However, it has become clear that SQM…

Instrumentation and Methods for Astrophysics · Physics 2021-02-10 Johannes Puschnig , Magnus Näslund , Axel Schwope , Stefan Wallner

We present a project to map the artificial sky brightness in Europe in the main astronomical photometrical bands with a resolution better than 3 km. The aim is to understand the state of night sky pollution in Europe, to quantify the…

Astrophysics · Physics 2007-05-23 P. Cinzano , F. Falchi , C. D. Elvidge , K. E. Baugh

China Jinping Underground Laboratory (CJPL) is ideal for studying solar-, geo-, and supernova neutrinos. A precise measurement of the cosmic-ray background would play an essential role in proceeding with the R\&D research for these…

Observations of interstellar clouds that cast shadows in the soft X-ray background can be used to separate the background Galactic halo emission from the local emission due to solar wind charge exchange (SWCX) and/or the Local Bubble (LB).…

Astrophysics of Galaxies · Physics 2015-06-23 David B. Henley , Robin L. Shelton , Renata S. Cumbee , Phillip C. Stancil

It is widely believed that the large discrepancy between the observed number of satellite galaxies and the predicted number of dark subhalos can be resolved via a variety of baryonic effects which suppress star formation in low mass…

Astrophysics of Galaxies · Physics 2016-09-21 A. M. Nierenberg , T. Treu , N. Menci , Y. Lu , Paul Torrey , M. Vogelsberger

Realistic calculation of NLC luminosity has been performed using particle tracking in DIMAD and beam-beam simulations in GUINEA-PIG code for various values of beam emittance, energy and beta functions at the Interaction Point (IP). Results…

Accelerator Physics · Physics 2007-05-23 Y. Nosochkov , P. Raimondi , T. O. Raubenheimer , A. Seryi

Lunar dust -- the sub-millimeter fraction of the regolith -- controls the optical, thermophysical, electrical, mechanical, and environmental behavior of the Moon's surface. These properties set the performance envelopes of remote-sensing…

Earth and Planetary Astrophysics · Physics 2026-03-25 Slava G. Turyshev

Based on the observations of the Chinese Small Telescope ARray (CSTAR), the i band observing conditions at Antarctic Dome A have been investigated. The over all variations of sky brightness and transparency are calculated and subsequently…

Instrumentation and Methods for Astrophysics · Physics 2011-01-13 Hu Zou , Xu Zhou
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