1. “100 sec GRBs” as standard candles in cosmology
Antonios Nathanail, RCAAM, Academy of Athens

2. Our team at the Academy Ioannis Contopoulos Mathew Katsanikas
Elpida Koutsantoniou
Antonios Nathanail
Theocharis Apostolatos (U of Athens)

6. Nathanail & Contopoulos 2014

7. Nathanail & Contopoulos 2014

8. Sironi & Spitkovky 2014
Nathanail & Contopoulos 2014

9. Black Hole spin down Reducible “rotational” energy from black hole
+ Magnetic field

10. Black Hole spin down
Blandford & Znajek (1977) mechanism

11. Black Hole spin down

12. Black Hole spin down

13. Black Hole spin down

14. GRB Observations

15. GRB Observations

16. GRB Observations

17. GRB Observations

18. Orthogonal GRB model

19. Orthogonal GRB model

20. Are GRBs “standard candles”?

21. Are GRBs “standard candles”?

22. Are GRBs “standard candles”?

23. END!