Results 1 to 10 of about 244,364 (325)
An Attempt to Construct an Activity Cycle Catalog with Kepler Long-Cadence Light Curves
Many stars show activity cycles like the Sun. Kepler has gathered ∼200,000 light curves. Most of the Kepler stars only have long-cadence light curves, which limits their applicable methods.
Yu-Fu Shen, Gang Zhao, Sarah A. Bird
doaj +1 more source
Multiview Photometric Stereo [PDF]
This paper addresses the problem of obtaining complete, detailed reconstructions of textureless shiny objects. We present an algorithm which uses silhouettes of the object, as well as images obtained under changing illumination conditions. In contrast with previous photometric stereo techniques, ours is not limited to a single viewpoint but produces ...
Hernández, Carlos +2 more
openaire +2 more sources
Thermodynamic and structural studies of complexes of manganese(II), cobalt(II), nickel(II) and copper(II) with aminofuropyridine carboxamide [PDF]
Complexes of Mn(II), Co(II), Ni(II) and Cu(II) with 2-aminofuro[3,2-b]pyridine-3-carboxamide have been prepared. The stability constants of the formed complexes were determined at 20, 30, 40 and 50ºC at a fixed ionic strength, I = 0.1 mol dm-3 (KCl). The
M. G. ABD EL WAHED
doaj +3 more sources
THE ALHAMBRA PHOTOMETRIC SYSTEM [PDF]
Astronomical Journal on the 14th of January ...
Villegas, T. Aparicio +22 more
openaire +10 more sources
The New Ephemeris and Light Curve Analysis of V870 Ara by the Ground-Based and TESS Data
New CCD photometric observations and their investigation of the W UMa-type binary, V870 Ara, are presented. Light curves of the system were taken through BVIfilters from the Congarinni Observatory in Australia.
Poro Atila +6 more
doaj +1 more source
Photometric redshifts from reconstructed QSO templates [PDF]
From SDSS commissioning photometric and spectroscopic data, we investigate the utility of photometric redshift techniques to the task of estimating QSO redshifts. We consider empirical methods (e.g.
Alexander S. Szalay +21 more
core +2 more sources
Hierarchical Bayesian inference of galaxy redshift distributions from photometric surveys [PDF]
Accurately characterizing the redshift distributions of galaxies is essential for analysing deep photometric surveys and testing cosmological models.
Leistedt, Boris +2 more
core +2 more sources
Photometric stereo endoscopy [PDF]
While color video endoscopy has enabled wide-field examination of the gastrointestinal tract, it often misses or incorrectly classifies lesions. Many of these missed lesions exhibit characteristic three-dimensional surface topographies. An endoscopic system that adds topographical measurements to conventional color imagery could therefore increase ...
Parot Fernández, Vicente José +6 more
openaire +4 more sources
Photometric Visual Servoing [PDF]
This paper proposes a new way to achieve robotic tasks by 2D visual servoing. Indeed, instead of using classical geometric features such as points, straight lines, pose or a homography, as is usually done, the luminance of all pixels in the image is here considered.
Collewet, Christophe, Marchand, Eric
openaire +2 more sources
Photometric Redshifts of Galaxies in COSMOS [PDF]
We measure photometric redshifts and spectral types for galaxies in the COSMOS survey. We use template fitting technique combined with luminosity function priors and with the option to simultaneously estimate dust extinction (i.e. E(B-V)) for each galaxy.
A. Iovino +37 more
core +3 more sources

