Spherical explosion with a central energy source

We investigate the constraints on dynamic models for the line-emitting regions in quasars and AGN. The parameters characterising the central energy source (Mass, efficiency, accretion rate) are calculated in terms of the physical conditions in the line emitting gas. In a large sample the central mass (calculated assuming the emission-line clouds are bound) is proportional to the continuum luminosity. We find typical values of L/LE∼10−2±0.5, e∼0.1-l%, and Ṁ/ṀE∼1–10.

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Repulsion of fallback matter due to central energy source in supernova

Publications of the Astronomical Society of Japan ◽

10.1093/pasj/psy108 ◽

2018 ◽

Vol 70 (6) ◽

Cited By ~ 1

Author(s):

Toshikazu Shigeyama ◽

Kazumi Kashiyama

Keyword(s):

Energy Source ◽

Central Energy

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Three-dimensional Hydrodynamic Simulations of Supernova Ejecta with a Central Energy Source

The Astrophysical Journal ◽

10.3847/1538-4357/ab2ad3 ◽

2019 ◽

Vol 880 (2) ◽

pp. 150 ◽

Cited By ~ 3

Author(s):

Akihiro Suzuki ◽

Keiichi Maeda

Keyword(s):

Energy Source ◽

Three Dimensional ◽

Hydrodynamic Simulations ◽

Central Energy

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The central energy source of 70 μm-selected galaxies: starburst or AGN?

Monthly Notices of the Royal Astronomical Society ◽

10.1111/j.1365-2966.2009.16214.x ◽

2010 ◽

Vol 403 (3) ◽

pp. 1474-1490 ◽

Cited By ~ 21

Author(s):

M. Symeonidis ◽

D. Rosario ◽

A. Georgakakis ◽

J. Harker ◽

E. S. Laird ◽

...

Keyword(s):

Energy Source ◽

Central Energy

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Small-Scale Radio Jets

Highlights of Astronomy ◽

10.1017/s1539299600005876 ◽

1983 ◽

Vol 6 ◽

pp. 725-730

Author(s):

P.N. Wilkinson

Keyword(s):

Energy Source ◽

Relativistic Effect ◽

Small Scale ◽

Relativistic Velocity ◽

Radio Jets ◽

Wide Range ◽

The Future ◽

Central Energy ◽

The Moment

Here I shall interpret ‘small-scale’ to mean a few kpc or less. Such jets occur over a wide range of emitted energies (e.g. 1039erg s–1 in M87, 1046 in 3C273) and we do not know if they are manifestations of the same basic phenomenon or whether Nature is fooling us in some way despite the morpholigicaI similarities. For the moment, it seems sensible to assume an underlying unity and to use the observations to explore the jet phenomenon in different guises.With the highest resolutions obtainable with VLBI, our goal is to elucidate the nature and properties of the central energy source. To this end, we can ask various questions which our observations are expected to bear upon both now and in the future. How do jets form and propagate from the energy source? Are the jets ccnfined/colIimated or ballistic? Why are some jets much stronger than others - is this intrinsic or an evolutionary or relativistic effect - or all three? Why are only some sources superlumina Is? Why are most jets ore-sided? Does the relativistic velocity implied by super I urninaI motion on the pc-scale continue into the kpc-scale jets?

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