SIMBAD references

2018ApJ...854L..14K - Astrophys. J., 854, L14-L14 (2018/February-2)

SN 2017dio: a type-Ic supernova exploding in a hydrogen-rich circumstellar medium.

KUNCARAYAKTI H., MAEDA K., ASHALL C.J., PRENTICE S.J., MATTILA S., KANKARE E., FRANSSON C., LUNDQVIST P., PASTORELLO A., LELOUDAS G., ANDERSON J.P., BENETTI S., BERSTEN M.C., CAPPELLARO E., CARTIER R., DENNEAU L., DELLA VALLE M., ELIAS-ROSA N., FOLATELLI G., FRASER M., GALBANY L., GALL C., GAL-YAM A., GUTIERREZ C.P., HAMANOWICZ A., HEINZE A., INSERRA C., KANGAS T., MAZZALI P., MELANDRI A., PIGNATA G., REST A., REYNOLDS T., ROY R., SMARTT S.J., SMITH K.W., SOLLERMAN J., SOMERO A., STALDER B., STRITZINGER M., TADDIA F., TOMASELLA L., TONRY J., WEILAND H. and YOUNG D.R.

Abstract (from CDS):

SN 2017dio shows both spectral characteristics of a type-Ic supernova (SN) and signs of a hydrogen-rich circumstellar medium (CSM). Prominent, narrow emission lines of H and He are superposed on the continuum. Subsequent evolution revealed that the SN ejecta are interacting with the CSM. The initial SN Ic identification was confirmed by removing the CSM interaction component from the spectrum and comparing with known SNe Ic and, reversely, adding a CSM interaction component to the spectra of known SNe Ic and comparing them to SN 2017dio. Excellent agreement was obtained with both procedures, reinforcing the SN Ic classification. The light curve constrains the pre-interaction SN Ic peak absolute magnitude to be around Mg=-17.6 mag. No evidence of significant extinction is found, ruling out a brighter luminosity required by an SN Ia classification. These pieces of evidence support the view that SN 2017dio is an SN Ic, and therefore the first firm case of an SN Ic with signatures of hydrogen-rich CSM in the early spectrum. The CSM is unlikely to have been shaped by steady-state stellar winds. The mass loss of the progenitor star must have been intense, {dot}M∼0.02(ε/0.01)–1 (vwind/500 km s–1) (vshock/10,000 km s–1)–3 M yr–1, peaking at a few decades before the SN. Such a high mass-loss rate might have been experienced by the progenitor through eruptions or binary stripping.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): supernovae: general - supernovae: individual: SN 2017dio

VizieR on-line data: <Available at CDS (J/ApJ/854/L14): ph17dio.dat s170430.dat s170501.dat s170502.dat s170513.dat s170514.dat s170523.dat s170601.dat s170619.dat s170718.dat>

Simbad objects: 14

goto Full paper

goto View the reference in ADS

To bookmark this query, right click on this link: simbad:2018ApJ...854L..14K and select 'bookmark this link' or equivalent in the popup menu


2021.04.13-18:41:04

© Université de Strasbourg/CNRS

    • Contact