Browsing by Author "Maeda, K."

Now showing items 1-7 of 7

    • All-sky Galactic radiation at 45 MHz and spectral index between 45 and 408 MHz 
      Guzmán, A. E.; May Humeres, Jorge; Álvarez Moreno, Héctor Julio; Maeda, K. (EDP SCIENCES, 2011-01)
      Aims. We study the Galactic large-scale synchrotron emission by generating a reliable all-sky spectral index map and temperature map at 45 MHz. Methods. We use our observations, the published all-sky map at 408 MHz, ...
    • An asymmetric explosion as the origin of spectral evolution diversity in type Ia supernovae 
      Maeda, K.; Benetti, S.; Stritzinger, M.; Röpke, F. K.; Folatelli, Gastón; Sollerman, J.; Taubenberger, S.; Nomoto, K.; Leloudas, G.; Hamuy Wackenhut, Mario; Tanaka, M.; Mazzali, Paolo; Elias Rosa, N. (2010-07-01)
      Type Ia supernovae forman observationally uniform class of stellar explosions, in that more luminous objects have smaller declinerates 1. This one-parameter behaviour allows type Ia supernovae to be calibrated as ...
    • Constraints on core-collapse supernova progenitors from explosion site integral field spectroscopy 
      Kuncarayakti, H.; Anderson, J. P.; Galbany, Lluis; Maeda, K.; Hamuy Wackenhut, Mario; Aldering, G.; Arimoto, N.; Doi, M.; Morokuma, T.; Usuda, T. (EDP Sciences, 2018-05-28)
      Context. Observationally, supernovae (SNe) are divided into subclasses according to their distinct characteristics. This diversity naturally reflects the diversity in the progenitor stars. It is not entirely clear, however, ...
    • Optical and near-IR observations of the faint and fast 2008ha-like supernova 2010ae 
      Stritzinger, M. D.; Hsiao, Eric; Valenti, S.; Taddia, F.; Rivera Thorsen, T. J.; Leloudas, G.; Maeda, K.; Pastorello, A.; Phillips, M. M.; Pignata Libralato, Giuliano; Baron, E.; Burns, C. R.; Contreras, C.; Folatelli, Gastón; Hamuy Wackenhut, Mario; Höflich, P.; Morrell, N.; Prieto, J. L.; Benetti, S.; Campillay, A.; Haislip, Joshua B.; LaClutze, A. P.; Moore, J. P.; Reichart, D. E. (ESO, 2014)
      A comprehensive set of optical and near-infrared (NIR) photometry and spectroscopy is presented for the faint and fast 2008halike supernova (SN) 2010ae. Contingent on the adopted value of host extinction, SN 2010ae reached ...
    • An optical supernova associated with the X-ray flash XRF 060218 
      Pian, E.; Mazzali, Paolo; Masetti, N.; Ferrero, P.; Klose, Sylvio; Palazzi, E.; Ramírez Ruiz, Enrico; Woosley, S. E.; Kouveliotou, C.; Deng, J.; Filippenko, Alexei V.; Foley, Ryan J.; Fynbo, Johan P. U.; Kann, D. A.; Li, Weidong; Hjorth, Jens; Nomoto, K.; Patat, F.; Sauer, D. N.; Sollerman, J.; Vreeswijk, Paul M.; Guenther, E. W.; Levan, A. J.; O'Brien, Peter; Tanvir, N. R.; Wijers, Ralph A. M.; Dumas, C.; Hainaut, O.; Wong, D. S.; Baade, D.; Wang, L.; Amati, L.; Cappellaro, E.; Castro Tirado, A. J.; Ellison, S.; Frontera, F.; Fruchter, Andrew S.; Greiner, J.; Kawabata, K.; Ledoux, C.; Maeda, K.; Møller, P.; Nicastro, L.; Rol, E.; Starling, R. (NATURE PUBLISHING GROUP, 2006-08-31)
      Long-duration gamma-ray bursts (GRBs) are associated with type Ic supernovae(1) that are more luminous than average(2-5) and that eject material at very high velocities. Less-luminous supernovae were not hitherto known to ...
    • A study of the color diversity around maximum light in Type Ia supernovae 
      Cartier Ugarte, Regis; Förster, F.; Coppi, C.; Hamuy Wackenhut, Mario; Maeda, K.; Pignata Libralato, Giuliano; Folatelli, Gastón (2011)
      From a sample of 12 well-observed Type Ia supernovae, we find clear evidence of correlations between early phase (U − B), (V − R), and (V − I) colors and the velocity shifts of the [Fe II] λ7155 and [Ni II] λ7378 nebular ...
    • Supernova 2008J: early time observations of a heavily reddened SN 2002ic-like transient 
      Taddia, F.; Stritzinger, M. D.; Phillips, M. M.; Burns, C. R.; Heinrich Josties, E.; Morrell, N.; Sollerman, J.; Valenti, S.; Anderson, J. P.; Boldt, L.; Campillay, A.; Castellón, S.; Contreras, C.; Folatelli, Gastón; Freedman, W. L.; Hamuy Wackenhut, Mario; Krzeminski, W.; Leloudas, G.; Maeda, K.; Persson, S. E.; Roth, M.; Suntzeff, Nicholas B. (2012)
      Aims. We provide additional observational evidence that some Type Ia supernovae (SNe Ia) show signatures of circumstellar interaction (CSI) with hydrogen-rich material. Methods. Early phase optical and near-infrared (NIR) ...