A mildly relativistic radio jet from the otherwise normal type Ic supernova 2007gr

Paragi, Z.; Taylor, G.B.; Kouveliotou, C.; Granot, J.; Ramirez-Ruiz, E.; Bietenholz, M.; van der Horst, A.J.; Pidopryhora, Y.; van Langevelde, H.J.; Garrett, M.A.; Szomoru, A.; Argo, M.K.; Bourke, S.; Paczynski, B.

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Author

Paragi, Z.

Taylor, G.B.

Kouveliotou, C.

Granot, J.

Ramirez-Ruiz, E.

Bietenholz, M.

van der Horst, A.J.

Pidopryhora, Y.

van Langevelde, H.J.

Garrett, M.A.

Szomoru, A.

Argo, M.K.

Bourke, S.

Paczynski, B.

Abstract

Type Ic supernovae have drawn attention since 1998 owing to their sparse association with long duration γ-ray bursts (GRBs). Although the GRB central engine generates ultra-relativistic jets, no relativistic outflows have yet been found in type Ib/c supernovae explosions. Here, radio observations reveal a mildly relativistic expansion in a nearby type Ic supernova, SN 2007gr.