Perturbative analysis in the McVittie metric yields analytical expressions for effective black hole mass and apparent horizon evolution during Generalized Chaplygin Gas accretion in matter-dominated and de Sitter eras.
α 1 +α B A k−3/(1+α) 1+α 3HA # .(69) Thus, we set the instant when accretion begins in this phase of the universe as t0ac = ln
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Accretion of Generalized Chaplygin Gas onto Cosmologically Coupled Black Holes
Perturbative analysis in the McVittie metric yields analytical expressions for effective black hole mass and apparent horizon evolution during Generalized Chaplygin Gas accretion in matter-dominated and de Sitter eras.