TY - JOUR
T1 - The broad-lined ic supernova ztf18aaqjovh (sn 2018bvw)
T2 - An optically discovered engine-driven supernova candidate with luminous radio emission
AU - Ho, Anna Y.Q.
AU - Corsi, Alessandra
AU - Cenko, S. Bradley
AU - Taddia, Francesco
AU - Kulkarni, S. R.
AU - Adams, Scott
AU - De, Kishalay
AU - Dekany, Richard
AU - Frederiks, Dmitry D.
AU - Fremling, Christoffer
AU - Golkhou, V. Zach
AU - Graham, Matthew J.
AU - Hung, Tiara
AU - Kupfer, Thomas
AU - Laher, Russ R.
AU - Mahabal, Ashish
AU - Masci, Frank J.
AU - Miller, Adam A.
AU - Neill, James D.
AU - Reiley, Daniel
AU - Riddle, Reed
AU - Ridnaia, Anna
AU - Rusholme, Ben
AU - Sharma, Yashvi
AU - Sollerman, Jesper
AU - Soumagnac, Maayane T.
AU - Svinkin, Dmitry S.
AU - Shupe, David L.
N1 - Funding Information:
A.Y.Q.H. is supported by a National Science Foundation Graduate Research Fellowship under grant No. DGE1144469
Publisher Copyright:
© 2020. The American Astronomical Society. All rights reserved.
PY - 2020/4/20
Y1 - 2020/4/20
N2 - We present ZTF18aaqjovh (SN 2018bvw), a high-velocity ("broad-lined") stripped-envelope (Type Ic) supernova (Ic-BL SN) discovered in the Zwicky Transient Facility one-day cadence survey. ZTF18aaqjovh shares a number of features in common with engine-driven explosions: the photospheric velocity and the shape of the optical light curve are very similar to those of the Type Ic-BL SN 1998bw, which was associated with a low-luminosity gamma-ray burst (LLGRB) and had relativistic ejecta. However, the radio luminosity of ZTF18aaqjovh is almost two orders of magnitude fainter than that of SN 1998bw at the same velocity phase, and the shock velocity is at most mildly relativistic (v = 0.06-0.4c). A search of high-energy catalogs reveals no compelling gamma-ray burst (GRB) counterpart to ZTF18aaqjovh, and the limit on the prompt GRB luminosity of Lγ iso ≈ 1.6 × 1048erg s-1 excludes a classical GRB but not an LLGRB. Altogether, ZTF18aaqjovh represents another transition event between engine-driven SNe associated with GRBs and ordinary Ic-BL SNe.
AB - We present ZTF18aaqjovh (SN 2018bvw), a high-velocity ("broad-lined") stripped-envelope (Type Ic) supernova (Ic-BL SN) discovered in the Zwicky Transient Facility one-day cadence survey. ZTF18aaqjovh shares a number of features in common with engine-driven explosions: the photospheric velocity and the shape of the optical light curve are very similar to those of the Type Ic-BL SN 1998bw, which was associated with a low-luminosity gamma-ray burst (LLGRB) and had relativistic ejecta. However, the radio luminosity of ZTF18aaqjovh is almost two orders of magnitude fainter than that of SN 1998bw at the same velocity phase, and the shock velocity is at most mildly relativistic (v = 0.06-0.4c). A search of high-energy catalogs reveals no compelling gamma-ray burst (GRB) counterpart to ZTF18aaqjovh, and the limit on the prompt GRB luminosity of Lγ iso ≈ 1.6 × 1048erg s-1 excludes a classical GRB but not an LLGRB. Altogether, ZTF18aaqjovh represents another transition event between engine-driven SNe associated with GRBs and ordinary Ic-BL SNe.
UR - http://www.scopus.com/inward/record.url?scp=85085093774&partnerID=8YFLogxK
U2 - 10.3847/1538-4357/ab7f3b
DO - 10.3847/1538-4357/ab7f3b
M3 - Article
AN - SCOPUS:85085093774
VL - 893
JO - Astrophysical Journal
JF - Astrophysical Journal
SN - 0004-637X
IS - 2
M1 - 132
ER -