ar X iv : 1 61 1 . 02 25 3 v 1 [ gr - q c ] 4 N ov 2 01 6 Can strange stars mimic dark energy stars ?

ar X iv : 1 61 0 . 01 01 6 v 2 [ gr - q c ] 7 N ov 2 01 6 Modified Gravity Explains Dark Matter ?

We explore a new horizon of modified gravity from the viewpoint of the particle physics. As a concrete example, we take the F (R) gravity to raise a question: can a scalar particle (“scalaron”) derived from the F (R) gravity be a dark matter candidate? We place the limit on the form of function F (R) from the constraint on the scalaron as a dark matter. The role of the screening mechanism and c...

ar X iv : a st ro - p h / 98 11 19 7 v 1 1 2 N ov 1 99 8 The ‘ bare ’ strange stars might not be bare

ar X iv : a st ro - p h / 06 11 30 3 v 1 9 N ov 2 00 6 Flat rotational curves without dark matter

We consider the singular configurations of gravitating gas [1] which could be used as a model for disk galaxies. The simplest steady configuration , which corresponds to rotation of stars around center gives flat rotational curve, provided the density distrubution has a tail, decaying as 1/r. This result based exclusively on Newtonian gravity and does not involve dark matter.

ar X iv : 1 50 1 . 01 74 7 v 2 [ nl in . C D ] 4 F eb 2 01 5 Strange nonchaotic stars

The unprecedented light curves of the Kepler space telescope document how the brightness of some stars pulsates at primary and secondary frequencies whose ratios are near the golden mean, the most irrational number. A nonlinear dynamical system driven by an irrational ratio of frequencies generically exhibits a strange but nonchaotic attractor. For Kepler ’s “golden” stars, we present evidence ...

ar X iv : a st ro - p h / 00 11 18 3 v 1 9 N ov 2 00 0 1 POPULATION SYNTHESIS OF NEUTRON STARS , STRANGE ( QUARK ) STARS AND BLACK HOLES

We compute and present the distribution in mass of single and binary neutron stars, strange stars, and black holes. The calculations were performed using a stellar population synthesis code. We follow all phases of single and binary evolution, starting from a ZAMS binary and ending in the creation of one compact object (neutron star, black hole, strange star) and a white dwarf, or two compact o...