September 30, 2015 to October 3, 2015
Yerevan, Armenia
Etc/GMT+4 timezone

Mass-radius relation of white and strange stars

Oct 3, 2015, 11:30 AM
Main Hall, Guesthouse

Main Hall, Guesthouse


Prof. Gevorg Hajyan (Yerevan State University)


White dwarfs (WD) and strange dwarfs (SD) are considered. We investigate the mass-radius relations of these stars. Our investigations are carried out for various chemical compositions of the matter. It is believed that in both of WD and SD matters the mass number A of atomic nuclei is constant, and the atomic number Z is determined by the beta equilibrium. It is shown that the larger the collection of the values of A, the wider region of existence of SD on the mass-radius plane. Therefore, the number of candidates to SD among observed WD is greater than for A = 56. This fact renders WD and SD hardly distinguished.

Primary author

Prof. Yury Vartanyan (Yerevan State University)


Dr Alexander Grigoryan (Yerevan State University) Ms Ani Alaverdyan (Yerevan State University) Prof. Gevorg Hajyan (Yerevan State University) Ms Hasmik Shahinyan (Yerevan State University)

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