Results 31 to 40 of about 2,354,988 (346)

Machine Learning Techniques for Stellar Light Curve Classification [PDF]

, 2018
We apply machine learning techniques in an attempt to predict and classify stellar properties from noisy and sparse time series data. We preprocessed over 94 GB of Kepler light curves from MAST to classify according to ten distinct physical properties ...
Hinners, Trisha, Tat, Kevin, Thorp, Rachel   +2 more
core   +2 more sources

Predicting Variable Star Light Curves [PDF]

International Astronomical Union Colloquium, 1993
AbstractI present a new method to test determinism, in particular the nonlinear behavior, in observed time series of pulsating stars, based on a recent prediction method which exploits the dynamical system theory. A method for filling gaps in data has thereby been constructed.
openaire   +1 more source

Light on curved backgrounds [PDF]

Physical Review D, 2015
34 pages, 10 ...
Batic, D., Nelson, S., Nowakowski, M.
openaire   +2 more sources

The 1.4 GHz light curve of GRB 970508 [PDF]

, 1998
We report on Westerbork 1.4 GHz radio observations of the radio counterpart to $\gamma$-ray burst GRB~970508, between 0.80 and 138 days after this event.
A. G. de Bruyn, Baars J. W. M., Bremer M., C. Kouveliotou, C. R. Robinson, Galama T. J., J. van Paradijs, Koranyi D. M., M. Bremer, P. J. Groot, R. A. M. J. Wijers, R. G. Strom, Sokolov V. V., T. J. Galama, Wijers R. A. M. J.   +14 more
core   +4 more sources

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
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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

Atypical Light Curves

, 2013
Presented at the "40 Years of Variable Stars: A Celebration of Contributions by Horace A. Smith" conference (arXiv:1310.0149).
Molnar, Lawrence, Steenwyk, Steven, Van Noord, Daniel   +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, Lucas H, Gabrielli, Carl B, Poitras, Michal, Lipson   +3 more
openaire   +2 more sources

The complex light-curve of the afterglow of GRB071010A [PDF]

, 2008
We present and discuss the results of an extensive observational campaign devoted to GRB071010A, a long-duration gamma-ray burst detected by the Swift satellite.
A. Cucchiara, A. Klotz, A. Kpc Yolda, A. Moretti, A. V. Filippenko, Achterberg, Amati, Amati, B. Gendre, Band, Berger, Berger, Bersier, Bertin, Beuermann, Bianco, Bloom, Bringer, Burrows, C. Clemens, C. Guidorzi, Calzetti, Campana, Chandra, Chevalier, Chincarini, Conconi, Covino, Covino, Covino, Covino, Covino, Covino, Curran, D. A. Kann, D. A. Perley, D. B. Fox, D. Fugazza, D. Guetta, D. Kocevksi, D. Poznanski, Dado, Dai, de Ugarte Postigo, Devillard, Dickey, E. Berger, E. Maiorano, E. Meurs, E. Molinari, E. Palazzi, E. Rossi, F. D'Alessio, F. Vitali, F. Zerbi, Falcone, Fynbo, G. Chincarini, G. Olofsson, G. Stratta, G. Tagliaferri, Galama, Gehrels, Ghirlanda, Ghisellini, Gorosabel, Greiner, Greiner, Guetta, Guidorzi, Guidorzi, J. Fynbo, J. Greiner, J. M. Silverman, J. S. Bloom, Jakobsson, Jhannesson, Jin, K. Misra, Kann, Kann, Klotz, Klotz, Kobayashi, Krimm, L. A. Antonelli, L. Amati, L. Stella, Lazzati, Lazzati, Lazzati, Lazzati, Liang, Lithwick, M. Ber, M. Della Valle, M. Modjaz, Maiorano, Malesani, Molinari, Monet, Moretti, Mszros, N. Masetti, N. Primak, Nakar, Nava, Norris, Nousek, P. D'Avanzo, P. Goldoni, P. Romano, Panaitescu, Panaitescu, Panaitescu, Pe'er, Pei, Perley, Prochaska, R. J. Foley, R. Roy, Rees, Rol, Rossi, Rykoff, S. B. Pandey, S. Campana, S. Covino, S. D. Vergani, S. di Serego Alighieri, S. Piranomonte, Salmonson, Sari, Sari, Sari, Schlegel, Shen, Sollerman, Staff, Starling, Stetson, Stratta, Strutskie, Tagliaferri, V. D'Elia, V. Testa, Vietri, Vitali, Zerbi, Zhang, Zhang   +150 more
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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
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