It is widely believed that Sciama's (1990) decaying-neutrino theory has been disproved by the failure of Davidsen et al. (1991) to detect an unidentified emission line at approximately 15 eV (in the rest frame) from the dark matter in the cluster of galaxies A665 (e.g., Trimble 1992). Here we show that recent X-ray data for A665 favor models in which the dark matter in the regions of the cluster observed by Davidsen et al. is mainly baryonic. Thus the decaying-neutrino theory continues to be viable.
Decaying neutrinos and the nature of the dark matter in galaxy clusters / Sciama, D. W.; Persic, M.; Salucci, P.. - In: PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC. - ISSN 0004-6280. - 105:683(1993), pp. 102-105. [10.1086/133131]
Decaying neutrinos and the nature of the dark matter in galaxy clusters
Salucci, P.
1993-01-01
Abstract
It is widely believed that Sciama's (1990) decaying-neutrino theory has been disproved by the failure of Davidsen et al. (1991) to detect an unidentified emission line at approximately 15 eV (in the rest frame) from the dark matter in the cluster of galaxies A665 (e.g., Trimble 1992). Here we show that recent X-ray data for A665 favor models in which the dark matter in the regions of the cluster observed by Davidsen et al. is mainly baryonic. Thus the decaying-neutrino theory continues to be viable.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
