We formulate analytically the maximum disc hypothesis (MDH) in the framework of a disc/halo mass decomposition, and apply it to a sample of suitably selected optical rotation curves. We find that the resulting disc-to-total mass ratios show a definite trend of increasing dark-to-luminous mass ratio with decreasing luminosity, in very good agreement with our previous results obtained by means of different decomposition techniques (Persic & Salucci). The same trend is also clearly discernible when the mass ratios (at the same radius in disc length-scale units) obtained from published MDH models are correlated with luminosity. We discuss possible reasons why previous studies which have assumed a similar framework have missed this fundamental systematics of dark matter.

The Disc Contribution to Rotation Curves of Spiral Galaxies / Persic, M.; Salucci, P.. - In: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. - ISSN 0035-8711. - 247:2(1990), pp. 349-352.

The Disc Contribution to Rotation Curves of Spiral Galaxies

Salucci, P.
1990-01-01

Abstract

We formulate analytically the maximum disc hypothesis (MDH) in the framework of a disc/halo mass decomposition, and apply it to a sample of suitably selected optical rotation curves. We find that the resulting disc-to-total mass ratios show a definite trend of increasing dark-to-luminous mass ratio with decreasing luminosity, in very good agreement with our previous results obtained by means of different decomposition techniques (Persic & Salucci). The same trend is also clearly discernible when the mass ratios (at the same radius in disc length-scale units) obtained from published MDH models are correlated with luminosity. We discuss possible reasons why previous studies which have assumed a similar framework have missed this fundamental systematics of dark matter.
1990
247
2
349
352
http://adsabs.harvard.edu/full/1990MNRAS.247..349P
Persic, M.; Salucci, P.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11767/11740
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