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Elemental abundance differences in the 16 Cygni binary system: a signature of gas giant planet formation?
Elemental abundance differences signature planet formation
2011/10/20
The atmospheric parameters of the components of the 16Cygni binary system, in which the secondary has a gas giant planet detected, are measured accurately using high quality observational data. Abunda...
Detailed Abundances of the Solar Twins 16 Cygni A and B: Constraining Planet Formation Models
Detailed Abundances Solar Twins Constraining Planet Formation Models
2011/10/10
Results of a detailed abundance analysis of the solar twins 16 Cyg A and 16 Cyg B based on high-resolution, high signal-to-noise ratio echelle spectroscopy are presented. 16 Cyg B is known to host a g...
The Morphology of the Expanding Ejecta of V2491 Cygni (2008 N.2)
line profiles – stars novae – stars individual V2491 Cyg
2010/11/12
Determining the evolution of the ejecta morphology of novae provides valuable information
on the shaping mechanisms in operation at early stages of the nova outburst. Understanding
such mechanisms h...
Cyclic period changes in the algol ww cygni。
Ch cygni and other symbiotic stars with low luminosity Hot components
Ch cygni low luminosity Hot components symbiotic stars
2009/6/17
Ch cygni and other symbiotic stars with low luminosity Hot components。
The spectroscopic orbit of cygni, a system with two Late-type giants
spectroscopic orbit cygni two Late-type giants
2009/6/16
The spectroscopic orbit of cygni, a system with two Late-type giants。
Increased multiplicity of 77 cygni, v815 herculis, and Hd 140122
77 cygni v815 herculis Hd 140122
2009/6/16
Increased multiplicity of 77 cygni, v815 herculis, and Hd 140122。
Velocity Curve Studies of Spectroscopic Binary Stars V380 Cygni, V401 Cyg, V523 Cas, V373 Cas and V2388 Oph
Stars binaries eclipsing—stars binaries spectroscopic
2010/9/15
Using measured radial velocity data of five double lined spectroscopic binary systems V380 Cygni, V401 Cyg, V523 Cas, V373 Cas and V2388 Oph, we find corresponding orbital and spectroscopic elements v...