National Edu News: Secretary Higher Education urges students to emerge as job creators  |  National Edu News: PM addresses the 18th Convocation of Tezpur University, Assam  |  Leadership Instincts: Experts highlight the need for strengthening centre-state cooperation  |  Policy Indications: India’s global position rises both in innovations & publications  |  Education Information: Written Result of Indian Economic Service/Indian Statistical Service Examination  |  National Edu News: AstroSat’s Ultraviolet Imaging Telescope spots rare ultraviolet-bright stars  |  Parent Interventions: Randomized trials could help to return children safely to schools   |  Parent Interventions: How fellow students improve your own grades   |  Parent Interventions: School-made lunch 'better' for children  |  Teacher Insights: Second Anniversary of India Science, Nation’s OTT Channel  |  Leadership Instincts: Participation of MGIEP in the Implementation of NEP 2020  |  Teacher Insights: World of Puzzling Patterns  |  Education Information: HKUST Collaborates with Hang Lung to Foster Young Mathematics Talent  |  Leadership Instincts: Global Environment Outlook 6 Chinese version launched  |  Leadership Instincts: Peking University academics visits Beijing Representative Office of World Bank  |  
March 23, 2019 Saturday 11:03:52 AM IST

Link in planet evolution

Science Innovations

Astronomers have detected a 1.3 km radius body at the edge of the Solar System. ‘Edgeworth-Kuiper Belt Objects’ with radii from 1 km to several kilometers have been predicted to exist for more than 70 years. These objects acted as an important step in the planet formation process.

A research team led by Ko Arimatsu at the National Astronomical Observatory of Japan used a technique known as occultation: monitoring a large number of stars and watching for the shadow of an object passing in front of one of the stars. The team monitored approximately 2000 stars for a total of 60 hours.

Analyzing the data, the team found an event consistent with a star appearing to dim as it is occulted by a 1.3 km radius Edgeworth-Kuiper Belt Object. This detection indicates that there are numerous Edgeworth-Kuiper Belt Objects. This supports models where planetesimals first grow slowly into kilometer sized objects before runaway growth causes them to merge into planets.


Comments