User:Jd.donascimento
CoRoT ID 102684698, also known as CoRoT Sol 1, is an evolved solar twin observed by the CoRoT space telescope. It was first characterized in a 2013 study by José Dias do Nascimento Jr. and collaborators, highlighting its low lithium abundance, which provides valuable insights into stellar evolution and the chemical aging of Sun-like stars.
Discovery and Observations
[edit]CoRoT ID 102684698 was identified as part of the CoRoT space mission, a collaboration between the French space agency CNES, ESA, and international institutions. The star was further studied using high-resolution spectroscopy, revealing its detailed chemical composition and evolutionary state.
Stellar Characteristics
[edit]| Property | Value |
|---|---|
| Spectral Type | G-type (solar twin) |
| Mass | ~1.01 M☉ |
| Radius | Slightly larger than the Sun |
| Effective Temperature | ~5777 K |
| Lithium Abundance | Very low, indicating advanced evolution |
| Age | Older than the Sun, based on lithium depletion |
Scientific Significance
[edit]CoRoT ID 102684698 serves as a benchmark for understanding:
- Lithium Depletion in Solar Analogs
- The star’s low lithium content aligns with theoretical models suggesting that lithium is a reliable indicator of stellar age in Sun-like stars.
- Rotation and Magnetic Evolution
- As a somewhat evolved solar twin, it provides crucial insights into the long-term evolution of stellar rotation and magnetism.
- Exoplanet Host Potential
- While no exoplanets have been confirmed around CoRoT ID 102684698, its study enhances our understanding of stellar environments that may host planetary systems.
See Also
[edit]References
[edit]- Nascimento, J.-D. et al. (2013). "The Lithium Content of CoRoT Sol 1: A Benchmark for Studying the Evolution of Solar Analogs." The Astrophysical Journal Letters, DOI:10.1088/2041-8205/771/2/L31.