Results 61 to 70 of about 150,777 (255)

Luminosity Measurements at the LHC at CERN Using Medipix, Timepix and Timepix3 Devices

open access: yesPhysics, 2021
The precise determination of the luminosity is essential for many analyses in physics based on the data from the particle accelerator Large Hadron Collider (LHC) at CERN. There are different types of detectors used for the luminosity measurements.
André Sopczak
doaj   +1 more source

The evolution of the X-ray luminosity functions of unabsorbed and absorbed AGNs out to z ~ 5 [PDF]

open access: yes, 2015
We present new measurements of the evolution of the X-ray luminosity functions (XLFs) of unabsorbed and absorbed active galactic nuclei (AGNs) out to z ~ 5.
J. Aird   +5 more
semanticscholar   +1 more source

Ecological anatomy of Eugenia punicifolia (Kunth) DC. (MYRTACEAE) in the restinga region,state of Ceará [PDF]

open access: yesRevista Brasileira de Fruticultura, 2019
The species Eugenia punicifolia (Kunth) DC. (myrtle) occurs in the coastal region of the state of Ceará and has ecological and medicinal importance. This study aimed to characterize the leaf anatomy of myrtle (E. punicifolia) in the rainy and dry seasons,
Viviane de Oliveira Thomaz Lemos   +3 more
doaj   +1 more source

Influence of Mineral Particle Films and Biomaterials on Guava Fruits and Implications for the Oviposition of Anastrepha obliqua (Macquart) (Diptera: Tephritidae)

open access: yesInsects, 2021
Anastrepha obliqua (Macquart, 1835) is an important pest of tropical fruits, especially Anacardiaceae and Myrtaceae, in the Americas. The objective of this study was to evaluate the influence of mineral films and biomaterials on the coloring of guava ...
Daniela Ribeiro da Costa   +7 more
doaj   +1 more source

The Luminosity Function of M3 [PDF]

open access: yesThe Astrophysical Journal, 1999
We present a high precision, large sample luminosity function (LF) for the Galactic globular cluster M3. With a combination of ground based and Hubble Space Telescope data we cover the entire radial extent of the cluster. The observed LF is well fit by canonical standard stellar models from the red giant branch (RGB) tip to below the main sequence ...
Oscar Straniero   +8 more
openaire   +3 more sources

The quasar luminosity function at redshift 4 with the Hyper Suprime-Cam Wide Survey [PDF]

open access: yes, 2017
We present the luminosity function of z=4 quasars based on the Hyper Suprime-Cam Subaru Strategic Program Wide layer imaging data in the g, r, i, z, and y bands covering 339.8 deg^2.
M. Akiyama   +26 more
semanticscholar   +1 more source

Luminosity and Vagueness

open access: yesDialectica, 2012
The paper discusses some ways in which vagueness and its phenomena may be thought to impose certain limits on our knowledge and, more specifically, may be thought to bear on the traditional philosophical idea that certain domains of facts are luminous, i.e., roughly, fully open to our view.
openaire   +2 more sources

How cutting types and shading levels influence the vegetative propagation of Pereskia aculeata?

open access: yesBrazilian Journal of Biology, 2023
Information from Pereskia aculeata Miller (Cactaceae) responses regarding the portion of the stem cuttings branch parental plants and the shading level need to be investigated in order to establish techniques for their producing seedlings.
C. C. Santos   +7 more
doaj   +1 more source

The Herschel Orion Protostar Survey: Luminosity and Envelope Evolution [PDF]

open access: yes, 2017
The Herschel Orion Protostar Survey obtained well-sampled 1.2–870 μm spectral energy distributions (SEDs) of over 300 protostars in the Orion molecular clouds, home to most of the young stellar objects (YSOs) in the nearest 500 pc. We plot the bolometric
W. J. Fischer   +17 more
semanticscholar   +1 more source

The power of relativistic jets is larger than the luminosity of their accretion disks [PDF]

open access: yesNature, 2014
Theoretical models for the production of relativistic jets from active galactic nuclei predict that jet power arises from the spin and mass of the central supermassive black hole, as well as from the magnetic field near the event horizon.
G. Ghisellini   +8 more
semanticscholar   +1 more source

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