|Author||Nachrichten, Astronomische ♦ Br, A. ♦ Garching, G. Hasinger ♦ Pasadena, H. W. Yorke ♦ Fekel, F. C. ♦ Williamson, M. H. ♦ Weber, M. ♦ Strassmeier, K. G. ♦ Pourbaix, D.|
|Editor||Strassmeier, K. G.|
|Subject Domain (in DDC)||Computer science, information & general works ♦ Data processing & computer science|
|Subject Keyword||Spectroscopic Orbit ♦ K-giant Binary Canis Minoris ♦ Evolutionary Track Result ♦ Star Spot ♦ Orbital Inclination ♦ Improved Orbit ♦ Pseudosynchronous Rotation Period ♦ Rotation Period ♦ Spectral Type ♦ K4 Iii ♦ Binary Canis Minoris ♦ Pseudosynchronous Rate ♦ Orbital Period ♦ Primary Mass Ratio ♦ Orbital Fit ♦ Low Amplitude Radial Velocity Residual ♦ Wiley-vch Verlag Gmbh Co ♦ Hipparcos Astrometry ♦ Magnitude Difference|
|Abstract||We have determined an improved orbit for the bright, evolved, double lined binary γ Canis Minoris. The system has an orbital period of 389.31 days and an eccentricity of 0.2586. We have revised the secondary to primary mass ratio to 0.987. The spectral types of the primary and secondary are K4 III and K1: III, respectively, and the components have a V magnitude difference of 2.2. Orbital fits to the Hipparcos astrometry are not definitive, but they suggest an orbital inclination of ∼ 66 ◦ , which produces masses of 1.88 and 1.85 M ⊙ for the components. A comparison with evolutionary tracks results in an age of 1.3 Gyr. STELLA very low amplitude radial velocity residuals of the secondary indicate a period of 278 days. We interpret this as the rotation period of the secondary, detectable because of star spots rotating in and out of view. This period is nearly identical to the pseudosynchronous rotation period of the star. The primary is rotating more slowly than its pseudosynchronous rate. c ○ 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim 1|
|Educational Role||Student ♦ Teacher|
|Age Range||above 22 year|
|Education Level||UG and PG ♦ Career/Technical Study|
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
For any issue or feedback, please write to firstname.lastname@example.org