The transitional gap transient AT 2018hso: new insights into the luminous red nova phenomenon
The transitional gap transient AT 2018hso: new insights into the luminous red nova phenomenon
Context. The absolute magnitudes of luminous red novae (LRNe) are intermediate between those of novae and supernovae (SNe), and show a relatively homogeneous spectro-photometric evolution. Although they were thought to derive from core instabilities in single stars, there is growing support for the idea that they are triggered by binary …