Results 71 to 80 of about 6,767,247 (161)

A Review of the Characteristics of Light Pollution: Assessment Technique, Policy, and Legislation

Energies
Light pollution from the use of artificial lighting poses significant impacts on human health, traffic safety, ecological environment, astronomy, and energy use.
Ying Hao, Peiyao Wang, Zhongyao Zhang, Zhiming Xu, Dagong Jia   +4 more
doaj   +1 more source

The effects of atmosphere conditions on gamma-ray astronomy [PDF]

, 2005
The High Energetic Stereoscopic System (H.E.S.S.) experiment is an array of imaging atmospheric Cherenkov (IAC) telescopes of the next generation, with enlarged mirrors and advanced detector electronics compared to its predecessors.
Aye, Klaus-Michael
core  

Towards a 3D analysis in Cherenkov γ -ray astronomy

, 2017
The development of a 3D or cube analysis to simultaneously fit a spectral and morphological model to the data is a challenge in Cherenkov gamma-ray astronomy.
D. Kerszberg, L. Jouvin, C. Deil, A. Donath, B. Khélifi, A. Lemière, R. Terrier   +6 more
semanticscholar   +1 more source

A Combined TESS and Ground-based Study of Transit Timing Variations in HAT-P-16, TOI-1516 and TOI-2046 Systems

The Astronomical Journal
We present new results for the hot Jupiters HAT-P-16b, TOI-1516b, and TOI-2046b, based on photometric observations collected using both space- and ground-based facilities.
E. Sonbas, K. Kaplan, M. Tanriver, A. Keskin, K. Dhuga, A. Bulut, E. Göğüş, W. Ogłoza   +7 more
doaj   +1 more source

Mathematics and explanation in astronomy and astrophysics [PDF]

, 2007
The purpose of this paper is to expound and clarify the mathematics and explanations commonly employed in certain notable areas of astronomy and astrophysics.
McCabe, Gordon, Gordon Mccabe
core  

Technology Advances for Radio Astronomy [PDF]

, 2013
The field of radio astronomy continues to provide fundamental contributions to the understanding of the evolution, and inner workings of, our universe.
Russell, Damon Stuart
core   +1 more source

Integrated Study of X-Ray Spectrum and Time Lags for HBL Mrk 421 within the Framework of the Multiple-zone Leptonic Model

The Astrophysical Journal
We present the timing analysis of 10 archived XMM-Newton observations with an exposure of >40 ks of Markarian 421. Mrk 421 is the brightest high-frequency-peaked BL Lac object emitting in X-rays produced by electrons accelerated in the innermost regions ...
Wen Hu, Jia-Lai Kang, Zhen-Yi Cai, Jun-Xian Wang, Zhen-Bo Su, Guang-Cheng Xiao   +5 more
doaj   +1 more source

Large resolution-weighted étendue space telescope designs categorized by tertiary mirror location diversity

Journal of the European Optical Society-Rapid Publications
Modern observational astronomy makes extensive use of deep, wide-field imaging and large spectroscopic surveys, defining telescope design spaces in which angular resolution, achievable depth, and survey efficiency are considered jointly rather than ...
Cho Hyejeon, Park Hyosun, Jee M. James, Kim Daewook   +3 more
doaj   +1 more source

Amateur Astronomy and Astronomy Education in India

, 2015
In India, astronomy has been studied from the beginning of civilization. The word amateur means involvement in work for pleasure rather than as a profession. So, amateur astronomers, in many places, prefer to be called non-professional astronomers.
Chatterjee, Somenath
core   +1 more source

Astronomy is a collaborative effort (The Real Astronomy)

, 2009
Professional Astronomers talk about the importance of collaborations for astronomy. Many astronomy projects are now so large in scope that they are often conducted in large teams.
Centre for Astrophysics and Supercomputing
core   +1 more source