Matches in SemOpenAlex for { <https://semopenalex.org/work/W3123648758> ?p ?o ?g. }
- W3123648758 endingPage "3768" @default.
- W3123648758 startingPage "3761" @default.
- W3123648758 abstract "ABSTRACT The Galactic Centre (Sgr A*), hosting a supermassive black hole, carries sufficient potential for testing gravitational theories. Existing astrometric facilities on Very Large Telescope (VLT) and the Keck Telescope have enabled astronomers to study stellar orbits near Sgr A* and perform new astronomical tests of gravitational theories. These observations have provided strong field tests of gravity (ϕ/c2 ∼ 10−3, which is much greater than ϕ/c2 for the Solar system). In this work, we have estimated magnitudes of various contributions to the periastron shift of compact stellar orbits near Sgr A* for pericentre distance in the range rp = (0.3 – 50)au at a fixed orbital inclination, i = 90°. We take the spin of the black hole as χ = 0.1, 0.44, and 0.9 and eccentricities of the orbit as e = 0.9. The relativistic effects including orders beyond 1PN and spin induced effects are incorporated in the contributions. Effect of tidal distortion on periastron shift has also been added into the estimation by considering gravitational Love numbers for polytropic models of the stars. For the tidal effect, we have considered updated mass–radii relations for low-mass stars and high-mass stars. It has been found that the tidal effect on periastron shift arising from stars represented by polytropes of indices n = 1 and n = 3 terminate above rp ∼ 2 au and rp ∼ 1 au, respectively. The periastron shift angle for the stars has been compared with the astrometric capabilities of existing large telescopes and upcoming extremely large telescopes. Challenges and prospects associated with the estimations are highlighted." @default.
- W3123648758 created "2021-02-01" @default.
- W3123648758 creator A5066313749 @default.
- W3123648758 creator A5069753524 @default.
- W3123648758 date "2021-01-16" @default.
- W3123648758 modified "2023-09-24" @default.
- W3123648758 title "Periastron shift of compact stellar orbits from general relativistic and tidal distortion effects near Sgr A*" @default.
- W3123648758 cites W1731437566 @default.
- W3123648758 cites W1964731881 @default.
- W3123648758 cites W1967833065 @default.
- W3123648758 cites W1987346517 @default.
- W3123648758 cites W1988782255 @default.
- W3123648758 cites W1992046166 @default.
- W3123648758 cites W2003155983 @default.
- W3123648758 cites W2007788374 @default.
- W3123648758 cites W2008862060 @default.
- W3123648758 cites W2017020311 @default.
- W3123648758 cites W2038432956 @default.
- W3123648758 cites W2044169722 @default.
- W3123648758 cites W2055410801 @default.
- W3123648758 cites W2063806773 @default.
- W3123648758 cites W2077986634 @default.
- W3123648758 cites W2081337469 @default.
- W3123648758 cites W2097618194 @default.
- W3123648758 cites W2110284565 @default.
- W3123648758 cites W2160908433 @default.
- W3123648758 cites W2191618462 @default.
- W3123648758 cites W2211968252 @default.
- W3123648758 cites W2252795400 @default.
- W3123648758 cites W2437571239 @default.
- W3123648758 cites W2475044151 @default.
- W3123648758 cites W2514372410 @default.
- W3123648758 cites W2618288299 @default.
- W3123648758 cites W2621266390 @default.
- W3123648758 cites W2755808824 @default.
- W3123648758 cites W2788086970 @default.
- W3123648758 cites W2792341106 @default.
- W3123648758 cites W2810831086 @default.
- W3123648758 cites W2851129314 @default.
- W3123648758 cites W2915372239 @default.
- W3123648758 cites W2951829158 @default.
- W3123648758 cites W2965067802 @default.
- W3123648758 cites W3015519038 @default.
- W3123648758 cites W3094118413 @default.
- W3123648758 cites W3098656872 @default.
- W3123648758 cites W3099510415 @default.
- W3123648758 cites W3099799106 @default.
- W3123648758 cites W3100487131 @default.
- W3123648758 cites W3101713755 @default.
- W3123648758 cites W3101751586 @default.
- W3123648758 cites W3101973723 @default.
- W3123648758 cites W3102745797 @default.
- W3123648758 cites W3103401953 @default.
- W3123648758 cites W3103456288 @default.
- W3123648758 cites W3103668758 @default.
- W3123648758 cites W3103996850 @default.
- W3123648758 cites W3104185613 @default.
- W3123648758 cites W3104186194 @default.
- W3123648758 cites W3104346142 @default.
- W3123648758 cites W3105173790 @default.
- W3123648758 cites W3105284649 @default.
- W3123648758 cites W3105623776 @default.
- W3123648758 cites W3105891255 @default.
- W3123648758 cites W3105998192 @default.
- W3123648758 cites W3106070623 @default.
- W3123648758 cites W3106391639 @default.
- W3123648758 cites W4250593586 @default.
- W3123648758 cites W3103069362 @default.
- W3123648758 doi "https://doi.org/10.1093/mnras/stab129" @default.
- W3123648758 hasPublicationYear "2021" @default.
- W3123648758 type Work @default.
- W3123648758 sameAs 3123648758 @default.
- W3123648758 citedByCount "4" @default.
- W3123648758 countsByYear W31236487582022 @default.
- W3123648758 countsByYear W31236487582023 @default.
- W3123648758 crossrefType "journal-article" @default.
- W3123648758 hasAuthorship W3123648758A5066313749 @default.
- W3123648758 hasAuthorship W3123648758A5069753524 @default.
- W3123648758 hasConcept C104954878 @default.
- W3123648758 hasConcept C121332964 @default.
- W3123648758 hasConcept C127413603 @default.
- W3123648758 hasConcept C1276947 @default.
- W3123648758 hasConcept C132552067 @default.
- W3123648758 hasConcept C142475440 @default.
- W3123648758 hasConcept C146978453 @default.
- W3123648758 hasConcept C150846664 @default.
- W3123648758 hasConcept C173120059 @default.
- W3123648758 hasConcept C196644772 @default.
- W3123648758 hasConcept C31258907 @default.
- W3123648758 hasConcept C41008148 @default.
- W3123648758 hasConcept C44870925 @default.
- W3123648758 hasConcept C50341732 @default.
- W3123648758 hasConcept C74172769 @default.
- W3123648758 hasConcept C86597896 @default.
- W3123648758 hasConcept C89305328 @default.
- W3123648758 hasConcept C98444146 @default.
- W3123648758 hasConceptScore W3123648758C104954878 @default.
- W3123648758 hasConceptScore W3123648758C121332964 @default.