5 papers
SN 2019vxm: A luminous and long-lived Type IIn supernova with early flash-ionisation features
Y. -Z. Cai, A. Pastorello, T. J. Moriya +38
We present the photometric and spectroscopic analysis of the luminous and long-lasting Type IIn supernova (SN) 2019vxm. The SN reaches a peak V-band absolute magnitude of MV = -20.…
Late-time evolution of the interacting stripped-envelope supernova 2017dio
C. Humina, C. P. Gutiérrez, C. P. Gutiérrez +16
The discovery of stripped-envelope supernovae (SNe) interacting with dense circumstellar medium (CSM) challenges our current understanding of massive star evolution. We present lat…
SN 2024hpj: A perspective on SN 2009ip-like events
I. Salmaso, A. Pastorello, E. Borsato +25
Supernovae (SNe) IIn are terminal explosions of massive stars that are surrounded by a dense circumstellar medium (CSM). Among SNe IIn, a notable subset is the SN 2009ip-like, whic…
Moonlit sky polarization patterns from Cerro Paranal
B. Pereira, S. Gonzalez-Gaitan, A. M. Mourao +5
We investigate the polarization patterns from the moonlit sky as observed from the European Southern Observatory at Cerro Paranal. The moonlit sky background can be significant in…
Narrow absorption lines from intervening material in supernovae. II. Galaxy properties
Santiago González-Gaitán, Claudia P. Gutiérrez, Gonçalo Martins +11
The interstellar medium (ISM) has a number of tracers such as the Na I D 5890, 5896 AA absorption lines that are evident in the spectra of galaxies but also in those of individual…