Results 71 to 80 of about 8,054,126 (389)

Focusing light in a curved-space

Optics Express, 2010
We use transformation optics to demonstrate 2D silicon nanolenses, with wavelength-independent focal point. The lenses are designed and fabricated with dimensions ranging from 5.0 microm x 5.0 microm to 20 microm x 20 microm. According to numerical simulations the lenses are expected to focus light over a broad wavelength range, from 1.30 mum to 1.60 ...
Danilo H, Spadoti, Lucas H, Gabrielli, Carl B, Poitras, Michal, Lipson   +3 more
openaire   +2 more sources

The shapes of light curves of Mira-type variables

, 2010
Using a sample of 454 mira light curves from the ASAS survey we study the shape of the light variations in this kind of variable stars. Opposite to earlier studies, we choose a general approach to identify any deviation from a sinusoidal light change. We
Barthes, Bowers, Bowers, Feast, Groenewegen, Ita, Le Bertre, Lebzelter, Lockwood, Mennessier, Nowotny, Onaka, Pojmansik, Pojmanski, Pojmanski, Soszynski, Soszynski, Soszynski, Vardya, Vardya, Vardya, Winters, Wood, Wood, Wood   +24 more
core   +1 more source

The Peculiar Type Ic Supernova 1997ef: Another Hypernova [PDF]

, 1998
SN 1997ef has been recognized as a peculiar supernova from its light curve and spectral properties. The object was classified as a Type Ic supernova (SN Ic) because its spectra are dominated by broad absorption lines of oxygen and iron, lacking any clear
Balam, D., Danziger, I. J., Garnavich, P., Iwamoto, K., Jha, S., Kirshner, R., Mazzali, P. A., Nakamura, T., Nomoto, K., Thorstensen, J.   +9 more
core   +4 more sources

Polarization and light curve variability: the "patchy shell" model

, 2003
Recent advances in early detection and detailed monitoring of GRB afterglows have revealed variability in some afterglow light curves. One of the leading models for this behavior is the patchy shell model.
Ehud Nakar, Pandey S. B., Uemura M., Yonatan Oren   +3 more
core   +1 more source

PERFORMANCE - LIGHT SATURATION CURVE FOR GRAPEVINE PHOTOSYNTHESIS [PDF]

Scientific Papers Series : Management, Economic Engineering in Agriculture and Rural Development, 2021
Performance - Light saturation curve for photosynthesis is determined by the genetics of grapevine genotypes, through the physiological element - the degree of penetration of leaves by solar radiation, photosynthesis intensity, leaf structure ...
Eugeniu ALEXANDROV, Gheorghe ȘIȘCANU, Gheorghe SCURTU   +2 more
doaj  

Modeling the light curve of the transient SCP06F6 [PDF]

, 2009
We consider simple models based on core collapse or pair-formation supernovae to account for the light curve of the transient SCP06F6. A radioactive decay diffusion model provides estimates of the mass of the required radioactive nickel and the ejecta as
Agnoletto, Arnett, Barbary, Bufano, Dolphin, Downes, Draine, Emmanouil Chatzopoulos, Gaensicke, Gezari, Gilliland, Harkness, J. Craig Wheeler, J. Vinko, Kotak, Kotak, Miller, Ofek, Quimby, Quimby, Quimby, Quimby, Smith, Smith, Smith, Smith, Smith, Smith, Soker, Tominaga, Yuan   +30 more
core   +2 more sources

A Kepler study of starspot lifetimes with respect to light-curve amplitude and spectral type [PDF]

, 2017
ACC acknowledges support from STFC consolidated grant number ST/M001296/1. RDH gratefully acknowledges support from STFC studentship grant ST/J500744/1, a grant from the John Templeton Foundation, and NASA XRP grant NNX15AC90G.
H. Giles, A. Cameron, R. Haywood
semanticscholar   +1 more source

Modeling of the Super-Eddington Phase for Classical Novae: Five IUE Novae

, 2006
We present a light curve model for the super-Eddington luminosity phase of five classical novae observed with IUE. Optical and UV light curves are calculated based on the optically thick wind theory with a reduced effective opacity for a porous ...
Andrea J., Brosch N., Brosch N., Caldwell J. A. R., Caldwell J. A. R., Camillieri P., Cassatella A., Chochol D., Collins P. L., Duerbeck H. W., Duerbeck H. W., Friedjung M., Izumi Hachisu, Kikuchi S., Klare G., Klare G., Kosai H., Kozai Y., Mariko Kato, Morrison W., Nariai K., Ortolani S., Prialnik D., Saizar P., Schwarz G. J., Seaton M. J., Sonneborn G., Stickland D. J., Vanlandingham K. M, Williams R. E.   +29 more
core   +1 more source

The Near Infrared and Multiwavelength Afterglow of GRB 000301c [PDF]

, 2000
We present near-infrared observations of the counterpart of GRB 000301c. The K' filter (2.1 micron) light curve shows a well-sampled break in the decay slope at t=3.5 days post-burst.
Andrew S. Fruchter, James E. Rhoads, Masetti N., Sagar R.   +3 more
core   +2 more sources

Changes in Body Composition in Children and Young People Undergoing Treatment for Acute Lymphoblastic Leukemia: A Systematic Review and Meta‐Analysis

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Ongoing evidence indicates increased risk of sarcopenic obesity among children and young people (CYP) with acute lymphoblastic leukemia (ALL), often beginning early in treatment, persisting into survivorship. This review evaluates current literature on body composition in CYP with ALL during and after treatment.
Lina A. Zahed, Raquel Revuelta Iniesta, Mary Fewtrell, Julie Lanigan, Breeana Gardiner, Graeme O'Connor   +5 more
wiley   +1 more source