Results 11 to 20 of about 398,011 (299)
Mid-infrared luminosity as an indicator of the total infrared luminosity of galaxies [PDF]
Astronomy & Astrophysics, 2004 The infrared (IR) emission plays a crucial role for understanding the star formation in galaxies hidden by dust. We first examined four estimators of the IR luminosity of galaxies, L_fir (Helou et al. 1988), L_tir (Dale et al.
A. Boselli +37 more
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Luminosity–time and luminosity–luminosity correlations for GRB prompt and afterglow plateau emissions [PDF]
Monthly Notices of the Royal Astronomical Society, 2015 We present an analysis of 123 Gamma-ray bursts (GRBs) with known redshifts possessing an afterglow plateau phase. We reveal that $L_a-T^{*}_a$ correlation between the X-ray luminosity $L_a$ at the end of the plateau phase and the plateau duration, $T^*_a$, in the GRB rest frame has a power law slope different, within more than 2 $σ$, from the slope of ...
Dainotti, M. +5 more
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Ciência Rural, 2018 : This research aimed to verify the influence of the photoperiod on the performance and survival piabanha-of-Pardo (Brycon vonoi) larvae. Piabanha-of-Pardo larvae 24 hours post-hatch, with body weight of 2.44 ± 0.02mg, and total length of 7.82 ± 0.46mm ...
Marcelo Mattos Pedreira +2 more
doaj +1 more source
Luminosity and photometry [PDF]
Proceedings of the Royal Society of London, 1897 Abstract The luminosity of the spectrum was determined by what may be term ed the method of the “minimal effective stimulus.” Through the partition separating two dark rooms from each other a hole was drilled 1 mm. across; this was covered with a piece of ground glass.
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Anais da Academia Brasileira de Ciências, 2012 This paper compares two medicinal species of Kalanchoe, which are often used interchangeably by the population, regarding the distribution of anthocyanins under the influence of four luminosity levels for 6 months.
Bruna P. Cruz +4 more
doaj +1 more source
Revista Brasileira de Zootecnia, 2011 A área foliar específica e as características anatômicas foliares da braquiária (Brachiaria decumbens cv. Basilisk) e do amendoim-forrageiro (Arachis pintoi cv.
Kátia Fernanda Gobbi +4 more
doaj +1 more source
Luminosity monitors at the LHC [PDF]
, 2000 We study the theoretical accuracy of various methods that have been proposed to measure the luminosity of the LHC pp collider, as well as for Run II of the Tevatron p barp collider.
Khoze, V. A. +3 more
core +3 more sources
The Properties and Luminosity Function of Extremely Low Luminosity Galaxies [PDF]
The Astrophysical Journal, 2005 We examine a sample of low redshift (10 < d < 150 Mpc) galaxies including galaxies with r-band absolute magnitudes as faint as -12.5 (for h=1), selected from the Sloan Digital Sky Survey Data Release 2 (SDSS). The sample is unique in containing galaxies of extremely low luminosities in a wide range of environments, selected with uniform and well ...
Blanton, Michael R. +6 more
openaire +2 more sources
Temas Agrarios, 2018 Potassium is a macronutrient that can improve the growth of crops. A randomized complete block design was used to evaluate the influence of four planting densities (50,000, 41,667, 33,333, 31,250 plants ha-1) and three potassium levels (300, 250, 200 kg ...
Amanda Silva Parra +2 more
doaj +1 more source