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

Burke Jamison; Dhawan S.; Gonzalez E. P.; Howell A.; Gromadzki Mariusz; Strotjohann Nora L.; Tzanidakis Anastasios; Kasliwal Mansi M.; Anderson J. P. Muller-Bravo T. E.; Galbany L.; Yaron Ofer; Drake Andrew J.; Young D. R.; Perley Daniel A.; Teffs Jacob; Riddle Reed; Medford Michael S.; Hiramatsu Daichi; Dekany Richard; McCully Curtis; Kool Erik C.; Schulze S.; Inserra Cosimo; Della Valle Massimo; Shin Kyung Min; Fremling Christoffer; Carini Roberta; Prentice S. J.; De Kishalay; Sollerman J.; Irani I.; Taggart K.; Shupe David L.; Chen T. -W.; Gal-Yam A.; Omer Rafia; Gutierrez Claudia P.; Pellegrino Craig; Nicholl Matt; Mazzali Paolo; Rusholme Ben

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

Burke Jamison
Dhawan S.
Gonzalez E. P.
Howell A.
Gromadzki Mariusz
Strotjohann Nora L.
Tzanidakis Anastasios
Kasliwal Mansi M.
Anderson J. P. Muller-Bravo T. E.
Galbany L.
Yaron Ofer
Drake Andrew J.
Young D. R.
Perley Daniel A.
Teffs Jacob
Riddle Reed
Medford Michael S.
Hiramatsu Daichi
Dekany Richard
McCully Curtis
Kool Erik C.
Schulze S.
Inserra Cosimo
Della Valle Massimo
Shin Kyung Min
Fremling Christoffer
Carini Roberta
Prentice S. J.
De Kishalay
Sollerman J.
Irani I.
Taggart K.
Shupe David L.
Chen T. -W.
Gal-Yam A.
Omer Rafia
Gutierrez Claudia P.
Pellegrino Craig
Nicholl Matt
Mazzali Paolo
Rusholme Ben
Katso/Avaa
Irani_2022_ApJ_927_10.pdf (4.912Mb)
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IOP PUBLISHING LTD
doi:10.3847/1538-4357/ac4709
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Julkaisun pysyvä osoite on:
https://urn.fi/URN:NBN:fi-fe2022081154558
Tiivistelmä

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

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