Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Mass and Spin of The Extreme Narrow Line Seyfert 1 Galaxy 1H
  0707-495 and Its Implications for The Trigger for Relativistic Jets   Relativistic reflection models of the X-ray spectrum of the `complex' Narrow
Line Seyfert 1 (NLS1) 1H 0707-495 require a high spin, moderate inclination,
low mass black hole. With these parameters fixed, the observed optical/UV
emission directly determines the mass accretion rate through the outer disc and
hence predicts the bolometric luminosity. This is $140-260~\times$ the
Eddington limit. Such a disc should power a strong wind, and winds are
generically expected to be clumpy. Changing inclination angle with respect to a
clumpy wind structure gives a possible explanation for the otherwise puzzling
difference between `complex' NLS1 such as 1H 0707-495 and `simple' ones like PG
1244+026. Lines of sight which intercept the wind show deep absorption features
at iron from the hot phase of the wind, together with stochastic dips and
complex absorption when the clumps occult the X-ray source (complex NLS1),
whereas both these features are absent for more face-on inclination (simple
NLS1). This geometry is quite different to the clean view of a flat disc which
is assumed for the spin measurements in relativistic reflection models, so it
is possible that even 1H 0707-495 has low spin. If so, this re-opens the
simplest and hence very attractive possibility that high black hole spin is a
necessary and sufficient condition to trigger highly relativistic (bulk Lorentz
factor $\sim 10-15$) jets.

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The categories of this paper are: nlin
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The categories of this paper are: solv-int
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The categories of this paper are: chem-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: alg-geom
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The categories of this paper are: cs
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The categories of this paper are: gr-qc
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The categories of this paper are: dg-ga
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The categories of this paper are: bayes-an
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The categories of this paper are: adap-org
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The categories of this paper are: hep-ph
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The categories of this paper are: cond-mat
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The categories of this paper are: atom-ph
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The categories of this paper are: math-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: comp-gas