Production and Collimation of Astrophysical Jets or Accretion: M87 and SN 1987A Scenarios

Details Production and Collimation of Astrophysical Jets or Accretion: M87 and SN 1987A Scenarios Production and Collimation of Astrophysical Jets or Accretion: M87 and SN 1987A Scenarios

Jun 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006rmxac..26..202b&link_type=abstract

XI IAU Regional Latin American Meeting of Astronomy (Eds. L. Infante & M. Rubio) Revista Mexicana de Astronomía y Astrofísica (S

Astronomy and Astrophysics

Astronomy

Scientific paper

Jets and outflows of various degrees of collimation and energetics are an ubiquitous phenomenon in astrophysics. They are present at all length scales, ranging from those found in young stellar objects (YSOs, Reipurth & Bally1991) and the galactic microquasars (Mirabel & Rodriguez 1994, Fender & Belloni 2004), to kpc-scale relativistic jets in AGNs. In many cases these appear to be symmetrical, with two oppositely directed lines of flow, and almost always they seem to be directly connected with accretion onto a central object at the base of the collimated outflow. The energy in the outflow itself ultimately comes from the gravitational potential well created by the central object. The structure and evolution of jet-like structures under a variety of physical conditions is a problem that generally requires numerical modelling. However, in certain cases valuable insight can be gained from purely hydrodynamical analytical solutions which exhibit outflows (or accretion) of varying characteristics. We show here several solutions of this type, applicable to various accretion scenarios.
Assuming that our solutions are Jets, we applied the model to M87 scenario and to SN1987A scenario, assuming that our solutions are like accretion.

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