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Chinese Space Station Telescope (CSST) has the capability to conduct slitless spectroscopic survey simultaneously with photometric survey. The spectroscopic survey will measure slitless spectra, potentially providing more accurate…

Cosmology and Nongalactic Astrophysics · Physics 2025-02-25 Xingchen Zhou , Yan Gong , Xin Zhang , Nan Li , Xian-Min Meng , Xuelei Chen , Run Wen , Yunkun Han , Hu Zou , Xian Zhong Zheng , Xiaohu Yang , Hong Guo , Pengjie Zhang

Space missions require lightweight, low-power consuming, radiation-tolerant components. Silicon photomultipliers are increasingly used for detecting near-UV, optical, and infrared light in space due to their compact design, low cost, low…

This research addresses the growing challenge of artificial satellite trail interference in ground-based astronomical observations by developing an efficient deep learning identification method. With the proliferation of satellite…

Instrumentation and Methods for Astrophysics · Physics 2025-09-05 Hua-Jian Yu , Jia-Lei Zheng , Yuan Fang

Lyman alpha emitters (LAEs) in the Epoch of Reionization (EoR) offer valuable probes of early galaxy evolution and the process of reionization; however, the exact evolution of their abundance and the nature of their emission remain open…

Given their extensive geographic coverage, low Earth orbit (LEO) satellites are envisioned to find their way into next-generation (6G) wireless communications. This paper explores space-air-ground integrated networks (SAGINs) leveraging…

Information Theory · Computer Science 2024-12-24 Chao Zhang , Qingchao Li , Chao Xu , Lie-Liang Yang , Lajos Hanzo

The Fred Young Submillimeter Telescope (FYST) and the Simons Observatory Large Aperture Telescope (SO\ LAT) will deliver unprecedented high-resolution measurements of microwave sky emissions. Notably, one of those microwave sky emissions,…

Cosmology and Nongalactic Astrophysics · Physics 2023-09-13 Maude Charmetant , Jens Erler

We present novel techniques and methodology for unresolved photometric characterization of low-Earth Orbit (LEO) satellites. With the Pomenis LEO Satellite Photometric Survey our team has made over 14,000 observations of Starlink and OneWeb…

Instrumentation and Methods for Astrophysics · Physics 2022-10-10 Harrison Krantz , Eric C. Pearce , Adam Block

Up to 100,000 satellites could be launched into Low Earth Orbit (LEO) in the coming decade. Assuming the two most advanced companies' plans are realised, close to 80,000 satellites will be present at a variety of altitudes between 328 -…

Instrumentation and Methods for Astrophysics · Physics 2021-08-10 Andrew Williams , Olivier Hainaut , Angel Otarola , Gie Han Tan , Andrew Biggs , Neil Phillips , Giuliana Rotola

A detailed analysis of NGST multiband photometry applied to the reference case of the study of high-redshift galaxies has been carried out with simulations based on galaxy SEDs derived from the currently available empirical and model…

Astrophysics · Physics 2007-05-23 S. Cristiani , S. Arnouts , R. A. E. Fosbury

In this paper, the routing in massive low earth orbit (LEO) satellite networks is studied. When the satellite-to-satellite communication distance is limited, we choose different relay satellites to minimize the latency in a constellation at…

Networking and Internet Architecture · Computer Science 2022-04-11 Ruibo Wang , Mustafa A. Kishk , Mohamed-Slim Alouini

Flight height is a fundamental parameter for correcting the gamma signal produced by terrestrial radionuclides measured during airborne surveys. The frontiers of radiometric measurements with UAV require light and accurate altimeters flying…

The precise estimation of the statistical errors and accurate removal of the systematical errors are the two major challenges for the stage IV cosmic shear surveys. We explore their impact for the China Space-Station Telescope (CSST) with…

Cosmology and Nongalactic Astrophysics · Physics 2023-11-17 Ji Yao , Huanyuan Shan , Ran Li , Youhua Xu , Dongwei Fan , Dezi Liu , Pengjie Zhang , Yu Yu , Chengliang Wei , Bin Hu , Nan Li , Zuhui Fan , Haojie Xu , Wuzheng Guo

We have used an existing, robotic, multi-lens, all-sky camera system, coupled to a dedicated data reduction pipeline, to automatically determine orbital parameters of satellites in Low Earth Orbit (LEO). Each of the fixed cameras has a…

Instrumentation and Methods for Astrophysics · Physics 2020-04-20 T. P. G. Wijnen , R. Stuik , M. Rodenhuis , M. Langbroek , P. Wijnja

It has been recently proposed to combine the node drifts of the future constellation of 27 Galileo spacecraft together with those of the existing LAGEOS-type satellites to improve the accuracy of the past and ongoing tests of the…

General Relativity and Quantum Cosmology · Physics 2014-01-21 Lorenzo Iorio

The low-frequency sky below $\sim$15 MHz (20 m) is obscured by the Earth's ionosphere, the layer of charged particles above the neutral atmosphere. Single spacecraft have made measurements in this band, but cannot achieve high or even…

Instrumentation and Methods for Astrophysics · Physics 2024-04-15 Mary Knapp , Lenny Paritsky , Ekaterina Kononov , Melodie M. Kao

The impact of large-scale constellations of satellites, is a concern for ground-based astronomers. In recent years there has been a significant increase in the number of satellites in Low-Earth Orbit and this trend is set to continue. The…

Instrumentation and Methods for Astrophysics · Physics 2021-11-23 James Osborn , Laurence Blacketer , Matthew J. Townson , Ollie J. D. Farley

The Internet is going through a massive infrastructural revolution with the advent of low-flying satellite networks, 5/6G, WiFi7, and hollow-core fiber deployments. While these networks could unleash enhanced connectivity and new…

Networking and Internet Architecture · Computer Science 2023-10-19 Shubham Tiwari , Saksham Bhushan , Aryan Taneja , Mohamed Kassem , Cheng Luo , Cong Zhou , Zhiyuan He , Aravindh Raman , Nishanth Sastry , Lili Qiu , Debopam Bhattacherjee

A preliminary assessment of the in-flight radiometric calibration of the Hinode EUV Imaging Spectrometer (EIS) is presented. This is done with the line ratio technique applied to a wide range of observations of the quiet Sun, active regions…

Solar and Stellar Astrophysics · Physics 2015-06-12 G. Del Zanna

We report on optical searches in the error circles of 93 ROSAT survey sources located at low galactic latitudes (|b| < 20 deg). These sources were extracted from the ROSAT Galactic Plane Survey using various selection criteria on hardness…

The measurement of cosmological distances using baryon acoustic oscillations (BAO) is crucial for studying the universe's expansion. The Chinese Space Station Telescope (CSST) galaxy redshift survey, with its vast volume and sky coverage,…