Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/7007
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dc.contributor.authorGurumath, S. R-
dc.contributor.authorHiremath, K. M-
dc.contributor.authorRamasubramanian, V-
dc.date.accessioned2020-11-14T07:26:02Z-
dc.date.available2020-11-14T07:26:02Z-
dc.date.issued2019-01-
dc.identifier.citationPublications of the Astronomical Society of the Pacific, Vol. 131, No. 995, 014401en_US
dc.identifier.issn0004-6280-
dc.identifier.urihttp://prints.iiap.res.in/handle/2248/7007-
dc.descriptionRestricted Access © The Astronomical Society of the Pacific https://doi.org/10.1088/1538-3873/aae6b1en_US
dc.description.abstractTo understand the distribution of angular momenta between host stars and their planets, we estimate the spin angular momentum (J spin ) of host stars that follow a power law ${10}^{(42.33\pm 5.40)}{\left(\tfrac{{M}_{\star }}{{M}_{\odot }}\right)}^{(4.18\pm 0.53)}$ with stellar mass $\left(\tfrac{{M}_{\star }}{{M}_{\odot }}\right)$. Similarly, the orbital angular momenta (L p ) of exoplanets are estimated, and the best fit yields a power law, ${10}^{(42.66\pm 1.79)}{\left(\tfrac{{M}_{p}}{{M}_{J}}\right)}^{(1.26\pm 0.05)}$, with the exoplanetary mass $\left(\tfrac{{M}_{p}}{{M}_{J}}\right)$. Furthermore, the total (spin and orbital) angular momentum J tot of the stellar planetary system is computed, and a power law of the form J tot = ${10}^{(43.11\pm 6.82)}{\left(\tfrac{{M}_{p}}{{M}_{J}}\right)}^{(0.94\pm 0.14)}$ is obtained. In addition, an analysis between specific angular momenta (I p ) of planets and planetary masses reveals that specific angular momentum is nonlinearly related with planetary mass in case of multiplanetary systems and is independent of planetary mass in case of single-planetary systems. We find that the probability of detecting Earth-like planets is more likely for host stars that have total angular momentum ≤1041 kg m2 s−1. Finally, a power-law relationship is obtained between exoplanetary masses and their orbital distances in case of multiplanetary systems and, is independent in case of single-planetary systems.en_US
dc.language.isoenen_US
dc.publisherIOP Publishingen_US
dc.subjectStars: evolutionen_US
dc.subjectStars: fundamental parametersen_US
dc.subjectStars: planetary systemsen_US
dc.subjectStars: solar-type Online material: color figuresen_US
dc.subjectMachine-readable tableen_US
dc.titleAngular momentum of stars and their planetsen_US
dc.typeArticleen_US
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