Results 301 to 310 of about 786,932 (316)

The particle-gravity frontier. [PDF]

Philos Trans A Math Phys Eng Sci
Bass SD, Harz J, Heisenberg L.
europepmc   +1 more source

Uncovering the integral spectral characteristics of the planetary nebula IC 4642. [PDF]

Sci Rep
Mohery M, Ali A, Hamam KA, Khames AA, Alsubaie AS.   +4 more
europepmc   +1 more source

A decade of sub-arcsecond imaging with the International LOFAR Telescope. [PDF]

Astrophys Space Sci
Morabito LK, Jackson N, de Jong J, Escott E, Groeneveld C, Mahatma V, Petley J, Sweijen F, Timmerman R, van Weeren RJ.   +9 more
europepmc   +1 more source

Scattering spectra models for physics. [PDF]

PNAS Nexus
Cheng S, Morel R, Allys E, Ménard B, Mallat S.   +4 more
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Primordial Rotating Disk Composed of ≥15 Star Forming Clumps at Cosmic Dawn

Fujimoto S, Ouchi M, Kohno K, Valentino F, Giménez-Arteaga C, Brammer G, Furtak L, Kohandel M, Oguri M, Pallottini A, Richard J, Zitrin A, Bauer F, Boylan-Kolchin M, Dessauges-Zavadsky M, Egami E, Finkelstein S, Ma Z, Smail I, Watson D, Hutchison T, Rigby J, Welch B, Ao Y, Bradley L, Caminha G, Caputi K, Espada D, Endsley R, Fudamoto Y, González-López J, Hatsukade B, Koekemoer A, Kokorev V, Laporte N, Lee M, Magdis G, Ono Y, Rizzo F, Shibuya T, Shimasaku K, Sun F, Toft S, Umehata H, Wang T, Yajima H.   +45 more
europepmc   +1 more source

First measurement of the Weyl potential evolution from the Year 3 Dark Energy Survey data: Localising the σ8 tension

Bonvin C, Tutusaus I, Grimm N.
europepmc   +1 more source

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Shadows and strong gravitational lensing: a brief review

General Relativity and Gravitation, 2018
For ultra compact objects, light rings and fundamental photon orbits (FPOs) play a pivotal role in the theoretical analysis of strong gravitational lensing effects, and of BH shadows in particular.
P. Cunha, C. Herdeiro
semanticscholar   +1 more source

Quasars and Gravitational Lenses [PDF]

Science, 1984
Despite the expenditure of large amounts of telescope time and other resources, most of the fundamental questions concerning quasi-stellar objects (quasars) remain unanswered. A complex phenomenology of radio, infrared, optical, and x-ray properties has accumulated but has not yielded even a satisfactory classification system.
openaire   +2 more sources

Galaxies as Gravitational Lenses [PDF]

Science, 1967
The probability that a galaxy gathers light from another remote galaxy, and deflects and focuses it toward an observer on Earth, is calculated according to various cosmologic models. I pose the question of whether an object called a quasar is a single, intrinsically luminous entity or the result of accidental alignment, along the line of sight, of two ...
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Galaxies as Gravitational Lenses

Science, 1968
Of all the galaxies in the visible part of the universe, 500 million are seen through intervening galaxies. In some instances the foreground galaxy will act as a gravitational lens and produce distorted and (in brightness) greatly amplified images of the galaxy behind it; such images may simulate starlike superluminous objects such as quasars (quasi ...
Jeno M. Barnothy, M. F. Barnothy
openaire   +3 more sources