Results 1 to 10 of about 1,129,387 (401)

Skycorr: A general tool for spectroscopic sky subtraction [PDF]

open access: yes, 2014
Airglow emission lines, which dominate the optical-to-near-IR sky radiation, show strong, line-dependent variability on various time scales. Therefore, the subtraction of the sky background in the affected wavelength regime becomes a problem if plain sky spectra have to be taken at a different time as the astronomical data.
Barden, M.   +7 more
arxiv   +5 more sources

Eigenvector Sky Subtraction [PDF]

open access: yes, 2000
We develop a new method for estimating and removing the spectrum of the sky from deep spectroscopic observations; our method does not rely on simultaneous measurement of the sky spectrum with the object spectrum. The technique is based on the iterative subtraction of continuum estimates and Eigenvector sky models derived from Singular Value ...
Kurtz, Michael J., Mink, Douglas J.
arxiv   +4 more sources

The ALADIN Interactive Sky Atlas [PDF]

open access: yesarXiv, 2000
The Aladin interactive sky atlas, developed at CDS, is a service providing simultaneous access to digitized images of the sky, astronomical catalogues, and databases. The driving motivation is to facilitate direct, visual comparison of observational data at any wavelength with images of the optical sky, and with reference catalogues.
Bartlett, James G.   +8 more
arxiv   +4 more sources

Flat parameter-space metric for all-sky searches for gravitational-wave pulsars [PDF]

open access: yesPhys. Rev. D 88, 123005 (2013), 2013
All-sky, broadband, coherent searches for gravitational-wave pulsars are computationally limited. It is therefore important to make efficient use of available computational resources, notably by minimizing the number of templates used to cover the signal parameter space of sky position and frequency evolution.
Prix, Reinhard, Wette, Karl
arxiv   +3 more sources

Sensitivity of full-sky experiments to large scale cosmic ray anisotropies [PDF]

open access: yes, 2015
The two main advantages of space-based observation of extreme energy ($\gtrsim5\times10^{19}$ eV) cosmic rays (EECRs) over ground based observatories are the increased field of view and the full-sky coverage with nearly uniform systematics across the entire sky. The former guarantees increased statistics, whereas the latter enables a clean partitioning
Denton, Peter B., Weiler, Thomas J.
arxiv   +4 more sources

A New Look at Senior Education [PDF]

open access: yesMaine Policy Review, 2003
Rabbi Harry Sky, founder of the senior college movement in Maine, provides his insights on the increasing desire by older adults for lifelong learning. He writes that older adults are seeking experiences to counteract the profound sense of loneliness and
Harry Sky
doaj   +2 more sources

Proca in the sky [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2021
Abstract The standard model of cosmology, the ΛCDM model, describes the evolution of the Universe since the Big Bang with just a few parameters, six in its basic form. Despite being the simplest model, direct late-time measurements of the Hubble constant compared with the early-universe measurements result in the so-called H0 tension.
Heisenberg, Lavinia   +1 more
openaire   +5 more sources

THE REVISED VIEW OF ONE OF TUTANKHAMUN'S NECKLACES [PDF]

open access: yesJournal of the General Union of Arab Archaeologists, 2021
أعادة رؤية فى إحدى قلادات توت عنخ آمون Ar]] في صندوق على هيئة الخرطوش عُثر عليه في كنز مقبرة الملك توت عنخ آمون KV 62 بطيبة، تم العثور على أروع قلادةمحلاه بشكل
Magda Abdalla
doaj   +1 more source

Clinical characteristics and frequency of anticoagulation in patients with atrial fibrillation and heart failure: results of a retrospective big data analysis

open access: yesКардиоваскулярная терапия и профилактика, 2023
Aim. To evaluate the clinical characteristics and frequency of prescribed anticoagulant therapy for patients with atrial fibrillation (AF) and heart failure (HF) in subjects of the Russian Federation based on a retrospective big data analysis using ...
M. A. Druzhilov   +4 more
doaj   +1 more source

Machine learning based on laboratory data for disease prediction

open access: yesФармакоэкономика, 2022
Objective: to review domestic and foreign literature on the issue of machine learning methods applied in medical information systems (MIS), to analyze the accuracy and efficiency of the technologies under study, their advantages and disadvantages, the ...
A. V. Gusev   +3 more
doaj   +1 more source

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