perinigricon

perinigricon

1. Synonym of peribothron (“periapsis of a black hole”)
   • 2002, R Schödel, T Ott, R Genzel, R Hofmann, M Lehnert, A Eckart, N Mouawad, T Alexander, MJ Reid, R Lenzen, M Hartung, F Lacombe, D Rouan, E Gendron, G Rousset, A-M Lagrange, W Brandner, N Ageorges, C Lidman, AFM Moorwood, J Spyromilio, N Hubin, KM Menten, “A star in a 15.2-year orbit around the supermassive black hole at the centre of the Milky Way”, in Nature, volume 419:

     Because tidal energy deposition falls faster than the sixth power of the ratio of tidal radius to orbital radius, tidal effects near the perinigricon of S2 are expected to be negligible, consistent with its lack of infrared variability.

   • 2012 July, L Iorio, “Constraining the electric charges of some astronomical bodies in Reissner–Nordström spacetimes and generic r⁻²-type power-law potentials from orbital motions”, in General Relativity and Gravitation, volume 44, number 7:

     According to the perinigricon precession of the main sequence S2 star in Sgr A*, the electric charge carried by the compact object hosted in the Galactic Center may be as large as |Q∙|≲4×1027 C.

   • 2013 June, R de la Fuente Marcos, C de la Fuente Marcos, “Colliding with G2 near the Galactic Centre: a geometrical approach”, in Monthly Notices of the Royal Astronomical Society:

     With this scenario in mind, it has recently been proposed by Bartos et al. that, prior to its perinigricon, G2 will likely experience multiple encounters with members of the black hole and neutron-star populations believed to orbit near the Galactic Centre.

• see periapsis