Zobrazeno 1 - 10
of 350
pro vyhledávání: '"R. Gomer"'
The largest source of systematic errors in the time-delay cosmography method likely arises from the lens model mass distribution, where an inaccurate choice of model could in principle bias the value of $H_0$. A Bayesian hierarchical framework has be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8599b1dbb9d58ee957f5c137a836c3fb
http://arxiv.org/abs/2209.02076
http://arxiv.org/abs/2209.02076
Autor:
Nathaniel R. Gomer, Matthew P. Nelson
Publikováno v:
Portable Spectroscopy and Spectrometry
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a9f6aa006145f90f0c622266f13670f2
https://doi.org/10.1002/9781119636489.ch10
https://doi.org/10.1002/9781119636489.ch10
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Galaxy lenses are frequently modeled as an elliptical mass distribution with external shear and isothermal spheres to account for secondary and line-of-sight galaxies. There is statistical evidence that some fraction of observed quads are inconsisten
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5457559008d997033e131858dce5833d
https://doi.org/10.1093/mnras/stab930
https://doi.org/10.1093/mnras/stab930
Autor:
Lyne Van de Vyvere, Matthew R. Gomer, Dominique Sluse, Dandan Xu, Simon Birrer, Aymeric Galan, Georgios Vernardos
In the context of gravitational lensing, the density profile of lensing galaxies is often considered to be perfectly elliptical. Potential angular structures are generally ignored, except to explain flux ratios anomalies. Surprisingly, the impact of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5388e36459f4fee5ee33b74e1c6a5c05
Publikováno v:
Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XXI.
Raman hyperspectral imaging (RHSI) is an emerging chemical imaging technique that provides spectral and spatial information simultaneously in one measurement, and therefore can be a valuable tool for the detection and analysis of targets located in c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::22c904d776eaa0af3841f378b0aaa0ee
https://doi.org/10.1117/12.2557714
https://doi.org/10.1117/12.2557714
Publikováno v:
Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XX.
Raman hyperspectral imaging (HSI) is a valuable technique for the detection of threat materials (i.e. explosives and/or narcotics), especially if those materials are located in a complex area with varied background constituents. Raman spectroscopy ca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4d98cbca66f930ec345896729abce29
https://doi.org/10.1117/12.2518943
https://doi.org/10.1117/12.2518943
Gravitational lensing offers a competitive method to measure $H_0$ with the goal of 1% precision. A major obstacle comes in the form of lensing degeneracies, such as the mass sheet degeneracy (MSD), which make it possible for a family of density prof
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::48020a7b048d8ade39e75a315c7efc76
Publikováno v:
Next-Generation Spectroscopic Technologies XI.
The detection of threats from a distance within a complex background is a valuable and often lifesaving utility. Hyperspectral Imaging (HSI) allows for the detection of threat materials in convoluted environmental scenes, where the target of interest
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6971e430ba04ee8ddded6caf3712c924
https://doi.org/10.1117/12.2305040
https://doi.org/10.1117/12.2305040
Publikováno v:
Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XIX.
Raman hyperspectral imaging (HSI) can be an advantageous technique for the detection and identification of threat materials (i.e. homemade and military grade explosives), especially if those materials are located in a complex scene. Raman spectroscop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0c7c91a44c85989e55ab98399f84751
https://doi.org/10.1117/12.2303675
https://doi.org/10.1117/12.2303675
The positions of multiple images in galaxy lenses are related to the galaxy mass distribution. Smooth elliptical mass profiles were previously shown to be inadequate in reproducing the quad population. In this paper, we explore the deviations from su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0af470e77eb2cdefdbdebe687420beec
http://arxiv.org/abs/1712.07665
http://arxiv.org/abs/1712.07665