Browsing by Author "Pignata, G."

Now showing items 1-4 of 4

    • Alert classification for the alerce broker system: the real-time stamp classifier 
      Carrasco Davis, Rodrigo Antonio; Reyes, E.; Valenzuela, C.; Foerster, F.; Estévez Valencia, Pablo Antonio; Pignata, G.; Bauer, F. E.; Reyes, I.; Sánchez Sáez, P.; Cabrera Vives, G.; Eyheramendy, S.; Catelan, M.; Arredondo, J.; Castillo Navarrete, E.; Rodríguez Mancini, D.; Ruz Mieres, Daniela Valentina; Moya, A.; Sabatini Gacitúa, Luis Alfredo; Sepúlveda Cobo, Cristóbal Mario; Mahabal, A. A.; Silva Farfán, Javier Ignacio; Camacho Iñiguez, E.; Galbany, L. (IOP, 2021)
      We present a real-time stamp classifier of astronomical events for the Automatic Learning for the Rapid Classification of Events broker, ALeRCE. The classifier is based on a convolutional neural network, trained on alerts ...
    • Intermediate-luminosity red transients: spectrophotometric properties and connection to electron-capture ... 
      Cai, Y-Z; Pastorello, A.; Fraser, M.; Botticella, M. T.; Elías Rosa, N.; Wang, L-Z; Kotak, R.; Benetti, S.; Cappellaro, E.; Turatto, M.; Reguitti, A.; Mattila, S.; Smartt, S. J.; Ashall, C.; Benítez, S.; Chen, T-W; Harutyunyan, A.; Kankare, E.; Lundqvist, P.; Mazzali, P. A.; Morales Garoffolo, A.; Ochner, P.; Pignata, G.; Prentice, S. J.; Reynolds, T. M.; Shu, X-W; Stritzinger, M. D.; Tartaglia, L.; Terreran, G.; Tomasella, L.; Valenti, S.; Valerin, G.; Wang, G-J; Wang, X-F; Borsato, L.; Callis, E.; Cannizzaro, G.; Chen, S.; Congiu, Enrico; Ergon, M.; Galbany, L.; Gal Yam, A.; Gao, X.; Gromadzki, M.; Holmbo, S.; Huang, F.; Inserra, C.; Itagaki, K.; Kostrzewa Rutkowska, Z.; Maguire, K.; Margheim, S.; Moran, S.; Onori, F.; Carracedo, A. Sagues; Smith, K. W.; Sollerman, J.; Somero, A.; Wang, B.; Young, D. R. (EDP, 2021)
      We present the spectroscopic and photometric study of five intermediate-luminosity red transients (ILRTs), namely AT 2010dn, AT 2012jc, AT 2013la, AT 2013lb, and AT 2018aes. They share common observational properties and ...
    • Investigating the properties of stripped-envelope supernovae; what are the implications for their progenitors? 
      Prentice, S. J.; Ashall, C.; James, P. A.; Short, L.; Mazzali, P. A.; Bersier, D.; Crowther, P. A.; Barbarino, C.; Chen, T.-W.; Copperwheat, C. M.; Darnley, M. J.; Denneau, L.; Elias-Rosa, N.; Fraser, M.; Galbany, Lluis; Gal-Yam, A.; Harmanen, J.; Howell, D. A.; Hosseinzadeh, G.; Inserra , C.; Kankare, E.; Karamehmetoglu, E.; Lamb , G. P.; Limongi, M.; Maguire , K.; McCully , C.; Olivares, F.; Piascik, A. S.; Pignata, G.; Reichart, D. E.; Rest, A.; Reynolds , T.; Rodríguez , O.; Saario, J. L. O.; Schulze, S.; Smartt, S. J.; Smith, K. W.; Sollerman, J.; Stalder, B.; Sullivan, M.; Taddia, F.; Valenti, S.; Vergani, S. D.; Williams, S. C.; Young, D. R. (Oxford University Press, 2019)
      We present observations and analysis of 18 stripped-envelope supernovae observed during 2013-2018. This sample consists of five H/He-rich SNe, sixH-poor/He-rich SNe, three narrow lined SNe Ic, and four broad lined SNe Ic. ...
    • Luminous Type II supernovae for their low expansion velocities 
      Rodríguez, Ó.; Pignata, G.; Anderson, J. P.; Moriya, T. J.; Clocchiatti, A.; Förster Burón, Francisco; Prieto, J.L.; Phillips, M. M.; Burns, C. R.; Contreras, C.; Folatelli, G.; Gutiérrez, C. P.; Hamuy Wackenhut, Mario; Morrell, N. I.; Stritzinger, M. D.; Suntzeff, N. B.; Benetti, S.; Cappellaro, E.; Elias Rosa, N.; Pastorello, A.; Turatto, M.; Maza Sancho, José María; Antezana, Roberto; Cartier, R.; González Muñoz, Luis; Haislip, J. B.; Kouprianov, V.; López, P.; Marchi Lasch, Sebastián; Reichart, D. (Oxford University Press, 2020)
      We present optical and near-infrared data of three Type II supernovae (SNe II), SN 2008bm, SN 2009aj, and SN 2009au. These SNe display the following common characteristics: signs of early interaction of the ejecta with ...