Quick Follow-up Observation of the Largest X-ray Flare from the TeV blazar Mrk 421
Abstract
We carried out the VLBI follow-up observations of the largest X-ray flare from Mrk 421, which was detected in Feb 16, 2010 with MAXI (ATel #2444), using the Japanese VLBI Network (JVN) array. It is usually expected that the delayed increasing of the flux density in the radio band is seen after the high energy flare. In order to examine it, a quick VLBI follow-up observation is essential. Here we report that the VLBI follow-up observation for the largest flare at the first epoch was carried out Mar 7, 2010, which is 19 days from the detection of X-ray flare. The observations at the total of five epochs were done using JVN array at approximately 20-day intervals.
- Publication:
-
The First Year of MAXI: Monitoring Variable X-ray Sources
- Pub Date:
- December 2010
- Bibcode:
- 2010fym..confP..38N