The very recent GRB 060218 long burst, brightening,
decline and rebrightening are puzzling, but consistent
with a model for GRB (and later on for SGR),
made by precessing spinning and blazing gamma
collimated Jets (solid angle about 10^-8 sr). See ref. below.
The GRB is associated to a blazing Jet whose
peak power is like a Supernova one (but apparent as GRB power).
In a very small near-by cosmic volumes as GRB 060218 at z=0.0331
or GRB980425 at z=0.008, it is quite off-axis (a few degree).
The off-axis geometry increase the probability to be found and reduce
its apparent luminosity (underluminous GRB).
The spinning-precessing jet lead to inner fast variability,
rebrightenings and while shining away, the smooth GRB decay.
In analogy, but at much lower power and therefore at nearer distances
later on, comparable and longeve X-Jet-pulsars are blazing as SGR.
The persistent precessing jet offer multi optical rebrightening
and-or permits un-correlation with earlier SN.
Hadron material around the SN make the GRB event a
possible TeV source observable by Milagro or ARGO,Hess and MAGIC,
an UHECR source in Auger and Hires,a UHE neutrino source for AMANDA
and Baikal (see DF and M.G. Nuovo Cim. 28 C.N 4-5.p.813-816.
astro-ph/0505150). The GRB maybe obsevable by its PeVs Glashow
neutrino while inducing air-showers at horizons
or EeV Tau air-showers below the MAGIC horizons
The presence (but even the already absence)
in near days of a complete SN rise combined with multi-bumps
(optical and-or radio rebrightening)
will stand for a definitive long live
(but decaying) precessing Jet,
blazing within an earlier SN shell.
Its possible late Jet blaze has been and it maybe
observed in future X flare again (if shining online to us).
On the contrary the rise of an unique dramatic SN bump
a few days later the observed brightening
and rebrightening of the GRB,
will be the clear hint that GRB-SN explosion maybe preceeded
by a persistent SGR Jet activity whose culmination ends into a the
catastrophic SN-GRB most powerfull beamed event. This scenario
may be still marginally coexisting with previous one ,
if a Jet activity may trigger the star collapse
and survive the SN explosion.
ATEL # 31; by DF, 15 Jul 1998;
"On the nature of GRB-SGRs blazing jets" in
Astron. Astrophys. Suppl. Ser. 138, 507-508;
and or more recent astro-ph/0501403 in
D.F. Chin.J.Astron.Astrophys.3,3 (2003) 472-482.
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