Molecular Clouds Possibly Associated with the Jets from a Compact Star of L = 348.5 degrees and SS433; ``Galactic vapor trail'' as a probe of black hole candidates

Astronomy and Astrophysics – Astrophysics

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Molecular Clouds, H2 Clouds, Dense Clouds, And Dark Clouds, Black Holes, Neutron Stars, Jets, Outflows, And Bipolar Flows

Scientific paper

We have discovered a group of linearly aligned four molecular clouds over about 400 pc nearly perpendicular to the galactic plane at a distance of 6 kpc toward ~348.5° in galactic longitude and that of molecular clouds on a straight line nearly coincident with the X-ray jet axis on the both side up to 150 pc, three times larget than previously known by X-ray, from SS433 from the NANTEN 12CO dataset. We argue that they represent molecular clouds which might be created by the interaction between the jet and the interstellar medium. We present a scenario that the interaction between the jet and interstellar medium induced the formation of molecular clouds and/or enhanced the molecular emission >=105 yrs ago. This scenario explains the molecular jet quantitatively if we assume the same physical parameters with those derived for the SS433 jet, the most-developed jet from compact object in the Milky Way known to date. The finding might offer a new tool, ``galactic vapor trail'', to search for relativistic jet driven by a black hole or a neutron star over more than 10 times longer timescale than the direct detection of high energy radiation.

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