Abstract Details
| Name: Sk Javed Rana Affiliation: Student Conference ID: ASI2015_772 Title : Electromagnetic Counterpart follow up of a Gravitational Wave (GW) source Authors and Co-Authors : Prof. Sukanta Bose Professor of IUCAA. Abstract Type : Abstract Category : General Relativity and Cosmology Abstract : A single GW detector detects signal strength of GW, which helps to model the chirp mass, spin and angular momentum of the GW source, etc. A combination of two or more than two detectors (used as GW interferometer) are useful to localize the GW source position on the sky. But the difficulties come from the errors in various detection (ex. error in time delay measurement between two detectors, noise etc). These errors give a patch (Error Patch) with some probability distribution function inside of finding the GW source on the sky, instead of a single point source (The location of the GW source). The GW source will be a single point inside the error patch. The size of the error patch varies from 20 sq.deg to few 100 sq.deg depending on the detectors (very weak angular resolution). Now to find the GW source inside the error patch we need help of Electromagnetic (EM) telescope which has much better angular resolution. To explore for the EM counterpart there are many constraints like- 1. Error Patch setting at the horizon. 2. GW source with continuously decaying brightness. 3. Curvature of the sky is not ignore-able for large Error Patch. 4. Searching of optical counterpart is not possible in day time. There are many more other constraints. The problem is an optimizing problem. The aim of our work is to get an optimal and efficient strategy for electromagnetic follow up of the GW source. Now we are implementing few algorithm to get optimal solution for the case when the error patch is setting. |