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Título

Discovery of Two Supernovae in the Nuclear Regions of the Luminous Infrared Galaxy IC 883

AutorKankare, E.; Mattila, Seppo; Alberdi, Antxón ; Alonso-Herrero, A. ; Colina, Luis ; Pérez-Torres, Miguel A. ; Romero-Cañizales, Cristina
Palabras claveGalaxies: individual (IC 883)
Galaxies: starburst
Infrared: galaxies
Instrumentation: adaptive optics;
Fecha de publicación2012
EditorAmerican Astronomical Society
Institute of Physics Publishing
CitaciónAstrophysical Journal Letters 744(2): L19 (2012)
ResumenWe report the discovery of two consecutive supernovae (SNe), 2010cu and 2011hi, located at 0.37" (180 pc) and 0.79" (380 pc) projected distance respectively from the centre of the K-band nucleus of the luminous infrared galaxy IC 883. The SNe were discovered in an ongoing near-infrared K-band search for core-collapse SNe in such galaxies using the ALTAIR/NIRI adaptive optics system with laser guide star at the Gemini-North Telescope. These are thus the closest SNe yet discovered to a LIRG nucleus in optical or near-infrared wavelengths. The near-infrared light curves and colours of both SNe are consistent with core-collapse events. Both SNe seem to suffer from relatively low host galaxy extinction suggesting that regardless of their low projected galactocentric distances, they are not deeply buried in the nuclear regions of the host galaxy.
Descripción6 páginas, 3 figuras, 1 tabla.-- Kankare, E. et al.
Versión del editorhttp://dx.doi.org/10.1088/2041-8205/744/2/L19
URIhttp://hdl.handle.net/10261/45953
DOI10.1088/2041-8205/744/2/L19
ISSN2041-8205
E-ISSN2041-8213
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