| Project/Area Number |
24740118
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Astronomy
|
|---|
| Research Institution | The University of Tokyo |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2012-04-01 – 2014-03-31
|
| Project Status |
Completed (Fiscal Year 2013)
|
| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
|
|---|
| Keywords | 高輝度超新星 / superluminous supernova / gravitationally lensed / identifying technique / 光学赤外線天文学 |
|---|
| Research Abstract |
Superluminous supernovae are a rare group of objects that have peak luminosities hundreds of times brighter than normal supernovae. They have only been discovered recently, and much is still unknown about their origin. However, their high luminosities make them potentially useful targets for probing the high redshift universe. Through this proposal, we have published the first measurement of the local superluminous supernova rate. This provides an important constraint on the nature of the progenitor systems. We further reclassified an object that was identified by others as a new type of superluminous supernova. We found that the object is actually the first Type Ia supernova seen through a strong gravitational lens, and we published a new technique for identifying more such objects in the future. In the future, such strongly lensed Type Ia supernovae can be used to make direct measurements of the Hubble parameter.
|
