- Rotation-invariant convolutional neural networks for galaxy morphology prediction
- Sander Dieleman, Kyle W. Willett, Joni Dambre
Measuring the morphological parameters of galaxies is a key requirement for studying their formation and evolution. Surveys such as the Sloan Digital Sky Survey (SDSS) have resulted in the availability of very large collections of images, which have …
- Removing the Impact of Correlated PSF Uncertainties in Weak Lensing
- Lu, Tianhuan; Zhang, Jun; Dong, Fuyu; Li, Yingke; Liu, Dezi; Fu, Liping; Li, Guoliang; Fan, Zuhui
Accurate reconstruction of the spatial distributions of the point-spread function (PSF) is crucial for high precision cosmic shear measurements. Nevertheless, current methods are not good at recovering the PSF fluctuations of high spatial frequencie …
- The Rotational Behavior of Kepler Stars with Planets
- Paz-Chinchón, F.; Leão, I. C.; Bravo, J. P.; de Freitas, D. B.; Ferreira Lopes, C. E.; Alves, S.; Catelan, M.; Canto Martins, B. L.; De Medeiros, J. R.
We analyzed the host stars of the present sample of confirmed planets detected by Kepler and Kepler Objects of Interest to compute new photometric rotation periods and to study the behavior of their angular momentum. Lomb–Scargle periodograms and w …
- A fuzzy logic based decision algorithm for a heterogeneous telescope network
- Lopez-Casado, M.C. ; Perez del Pulgar, C.J. ; Cabello-Castillo, J. ; Munoz, V.F.
This paper proposes a fuzzy logic based algorithm which decides the best telescope, within a heterogeneous network, taking into account user constraints, weather forecast, visibility and statistical information from every telescope. The main objecti …
- Comprehensive search for dark matter annihilation in dwarf galaxies
- Geringer-Sameth, Alex; Koushiappas, Savvas M.; Walker, Matthew G.
We present a new formalism designed to discover dark matter annihilation occurring in the Milky Way’s dwarf galaxies. The statistical framework extracts all available information in the data by simultaneously combining observations of all the dwarf …