Camouflage
发表于 2025-3-28 18:05:51
Redshift measurements of the brightest cluster galaxies of the gravitational lens 0957+561,rements have been used to separate field galaxies from members of the lensing cluster at . = 0.355, allowing the determination of a luminosity-weighted centre for the cluster and a tentative value for its radial velocity dispersion ≈ 550 km s−1. These data also provide evidence that there may be an
边缘
发表于 2025-3-28 20:01:27
The Triple Quasar PG1115+080,he time-delay is stable against small perturbations in the image positions. The Triple Quasar PG1115+080 is among the very few such candidates. The photometry of its individual images and redshift measurement of the lensing galaxy should turn out to be useful towards a reliable estimate of the Hubbl
ALT
发表于 2025-3-29 01:56:52
1830-211 as a lens artefact,vitational lens hypothesis. It is suggested that the increase with frequency of the NE/SW flux ratio in the compact components can be accounted for chiefly by the core-knot structure of the source. Simulations of the ring structure at 1.69 GHz and the map at 15 GHz are presented. Speculations about
Androgen
发表于 2025-3-29 05:29:39
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行为
发表于 2025-3-29 09:43:16
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裂口
发表于 2025-3-29 14:48:12
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Predigest
发表于 2025-3-29 17:11:41
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correspondent
发表于 2025-3-29 20:46:50
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沙草纸
发表于 2025-3-30 02:23:26
Inverse Systems – Nanoporous Solidsnal lens systems. Preliminary analysis indicates that we have not found any new systems with sub-arcsecond separations and components having a magnitude difference of ≤ 1.5 mag. Galaxy count statistics around 94 quasars with photometric data are analysed. Within radii of 6″, 10″, and 15″, and down t
恶意
发表于 2025-3-30 06:51:44
https://doi.org/10.1007/978-3-030-74741-1rning the multiple images and the associations of galaxies with quasars, are examined. We find a significant overdensity of galaxies very close to the line-of-sight, to the HLQs. We also report the discovery of a new multiply lensed quasar candidate.