Results 31 to 40 of about 1,812,631 (345)
Spectral and Photometric Studies of NGC 7469 in the Optical Range
UniverseThe galaxy NGC 7469 is a bright infrared source with an active galactic nucleus (AGN) and an intense star-forming region with a radius of approximately 500 parsecs, where the star formation rate is estimated to be 20–50 M⊙yr−1.
Saule Shomshekova +5 more
doaj +1 more source
Simple Method of Light Field Calculation for Shaping of 3D Light Curves
Photonics, 2023 We propose a method for generating three-dimensional light fields with given intensity and phase distributions using purely phase transmission functions.
Svetlana N. Khonina +4 more
doaj +1 more source
, 2013 Presented at the "40 Years of Variable Stars: A Celebration of Contributions by Horace A. Smith" conference (arXiv:1310.0149).
Molnar, Lawrence +2 more
openaire +2 more sources
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 +3 more
openaire +2 more sources
CCD Photometry of Contact Binary WZ Cephei [PDF]
Journal of Astronomy and Space Sciences, 2008 We present the full BVR light curves and five times of minima of WZ Cep to provides a complete photometric solution and to confirm the long term variation of the light curves.
Woo-Baik Lee +2 more
doaj +1 more source
, 2013 We have carried out a detailed observational study of the light, color, and velocity variations of two bright, carbon-rich proto-planetary nebulae, IRAS 22223+4327 and 22272+5435.
Bohlender, David +5 more
core +1 more source
Asymmetry in Microlensing-Induced Light Curves [PDF]
, 1999 We discuss distortion in microlensing-induced light curves which are considered to be curves due to single-point-mass lenses at a first glance. As factors of the distortion, we consider close binary and planetary systems, which are the limiting cases of ...
Kojima, Yasufumi, Konno, Kohkichi
core +3 more sources
Solutions for 10,000 Eclipsing Binaries in the Bulge Fields of OGLE II Using DEBiL
, 2005 We have developed a fully-automated pipeline for systematically identifying and analyzing eclipsing binaries within large datasets of light curves. The pipeline is made up of multiple tiers which subject the light curves to increasing levels of scrutiny.
Alard C. +13 more
core +1 more source
Near-infrared light curves of type Ia supernovae [PDF]
, 2012 Aims. With our time-dependent model atmosphere code PHOENIX, our goal is to simulate light curves and spectra of hydrodynamical models of all types of supernovae. In this work, we simulate near-infrared light curves of SNe Ia and confirm the cause of the
Baron +19 more
core +1 more source
, 2012 We present an automated classification of 2165 \textit{Kepler} eclipsing binary (EB) light curves that accompanied the second \textit{Kepler} data release. The light curves are classified using Locally Linear Embedding, a general nonlinear dimensionality
Barclay, Thomas +5 more
core +1 more source