Results 1 to 10 of about 665,255 (368)

The European Solar Telescope [PDF]

open access: yesAstronomy & Astrophysics, 2022
The European Solar Telescope (EST) is a project aimed at studying the magnetic connectivity of the solar atmosphere, from the deep photosphere to the upper chromosphere.
C. Noda   +17 more
semanticscholar   +16 more sources

An Overview of Some Latest Development in Chinese Astronomy [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2021
We present brief highlights and updates on some newer projects, both in operation/construction and in preparation stages, of astronomical research on Mainland China, with an emphasis on those involving international collaborations.
ZHONG WANG, YANCHUN LIANG
doaj   +1 more source

The James Webb Space Telescope Mission [PDF]

open access: yesPublications of the Astronomical Society of the Pacific, 2023
Twenty-six years ago a small committee report, building on earlier studies, expounded a compelling and poetic vision for the future of astronomy, calling for an infrared-optimized space telescope with an aperture of at least 4 m.
J. Gardner   +499 more
semanticscholar   +1 more source

Astronomy Lab I: Photometric Experiments for Physics Students [PDF]

open access: yesIranian Journal of Astronomy and Astrophysics, 2023
As physics laboratories are an integral part of the physics education across the globe, astronomy laboratories are also a necessary part of the astronomy education.
Reza Rezaei
doaj   +1 more source

The Atacama Cosmology Telescope: DR6 Gravitational Lensing Map and Cosmological Parameters [PDF]

open access: yesAstrophysical Journal, 2023
We present cosmological constraints from a gravitational lensing mass map covering 9400 deg2 reconstructed from measurements of the cosmic microwave background (CMB) made by the Atacama Cosmology Telescope (ACT) from 2017 to 2021.
M. Madhavacheril   +158 more
semanticscholar   +1 more source

Science with the Einstein Telescope: a comparison of different designs [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2023
The Einstein Telescope (ET), the European project for a third-generation gravitational-wave detector, has a reference configuration based on a triangular shape consisting of three nested detectors with 10 km arms, where each detector has a 'xylophone ...
M. Branchesi   +74 more
semanticscholar   +1 more source

First Sagittarius A* Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole in the Center of the Milky Way [PDF]

open access: yes, 2023
We present the first Event Horizon Telescope (EHT) observations of Sagittarius A* (Sgr A$^*$), the Galactic center source associated with a supermassive black hole.
K. Akiyama   +387 more
semanticscholar   +1 more source

First Sagittarius A* Event Horizon Telescope Results. II. EHT and Multi-wavelength Observations, Data Processing, and Calibration [PDF]

open access: yes, 2023
We present Event Horizon Telescope (EHT) 1.3 mm measurements of the radio source located at the position of the supermassive black hole Sagittarius A* (Sgr A*), collected during the 2017 April 5--11 campaign.
The Event Horizon Telescope Collaboration
semanticscholar   +1 more source

Incremental Fermi Large Area Telescope Fourth Source Catalog [PDF]

open access: yesAstrophysical Journal Supplement Series, 2022
We present an incremental version (4FGL-DR3, for Data Release 3) of the fourth Fermi Large Area Telescope (LAT) catalog of γ-ray sources. Based on the first 12 years of science data in the energy range from 50 MeV to 1 TeV, it contains 6658 sources.
F. Abdollahi   +138 more
semanticscholar   +1 more source

Horizon-scale tests of gravity theories and fundamental physics from the Event Horizon Telescope image of Sagittarius A ∗ [PDF]

open access: yesClassical and quantum gravity, 2022
Horizon-scale images of black holes (BHs) and their shadows have opened an unprecedented window onto tests of gravity and fundamental physics in the strong-field regime.
S. Vagnozzi   +3 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy