English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We present observations of three Core-collapse supernovae (CCSNe) inelliptical hosts, detected by the Zwicky Transient Facility Bright TransientSurvey (BTS). SN 2019ape is a SN Ic that exploded in the main body of a typicalelliptical galaxy. Its properties are consistent with an explosion of a regularSN Ic progenitor. A secondary g-band light curve peak could indicateinteraction of the ejecta with circumstellar material (CSM). AnH$\alpha$-emitting source at the explosion site suggests a residual local starformation origin. SN 2018fsh and SN 2020uik are SNe II which exploded in theoutskirts of elliptical galaxies. SN 2020uik shows typical spectra for SNe II,while SN 2018fsh shows a boxy nebular H$\alpha$ profile, a signature of CSMinteraction. We combine these 3 SNe with 7 events from the literature andanalyze their hosts as a sample. We present multi-wavelength photometry of thehosts, and compare this to archival photometry of all BTS hosts. Using thespectroscopically complete BTS we conclude that $0.3\%^{+0.3}_{-0.1}$ of allCCSNe occur in elliptical galaxies. We derive star-formation rates and stellarmasses for the host-galaxies and compare them to the properties of other SNhosts. We show that CCSNe in ellipticals have larger physical separations fromtheir hosts compared to SNe Ia in elliptical galaxies, and discuss implicationsfor star-forming activity in elliptical galaxies.

Less than 1% of Core-Collapse Supernovae in the local universe occur in elliptical galaxies