Category Archives: IJAA

International Journal of Astronomy and Astrophysics

Halo Orbits around Sun-Earth L1 in Photogravitational Restricted Three-Body Problem with Oblateness of Smaller Primary

Author(s): Prithiviraj Chidambararaj, Ram Krishan Sharma ABSTRACT This paper deals with generation of halo orbits in the three-dimensional photogravitational restricted three-body problem, where the more massive primary is considered as the source of radiation and the smaller primary is an … Continue reading

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Partial Frequencies and Chladni’s Law in Church Bells

Author(s) :William A. Hibbert, David B. Sharp, Shahram Taherzadeh, Robert Perrin   The rim partials of a church bell (those with an antinode at the soundbow) generate the strike pitch or perceived note of the bell. The spacing in frequency of the higher rim … Continue reading

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Black Holes Are Only Half of Their Previously Predicted Size

First discovered in 1971, Black Holes, as predicted by Einstein’s general relativity are regions in the space-time where the gravitation field is so intense that even light cannot escape it. The theory of general relativity predicts that a sufficiently compact mass will deform space-time … Continue reading

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