Cosmology News & Events

Enter words that may appear in the title

New SPRG officers

The fourth general assembley of the Portuguese Relativity and Gravitation Society (SPRG) ellected the following new officers: C. Herdeiro (president), J. Natário (vice-president), V. Cardoso (Treasurer), J. Lemos (General Assembley President), F. Mena (First Secretary), J. Costa (Second secretary). These officers appear in the above photograph presenting the 2017 Alberto Prize to M. Zilhão. The remaining officer is J. Rocha ("Fiscal Único").

Scientists discuss black holes in Aveiro

The X Black Holes workshop took place at Aveiro University on 18-19 December 2017. It gathered almost 100 scientists discussing black holes from many different perspectives. Besides 63 oral communications, the workshop also included the fourth General Assembley of the Portuguese Relativity and Gravitation Society (SPRG) and a special session celebrating the 60th anniversary of Prof. J. S. Lemos.

A no-go theorem for exotic alternatives to black holes as LIGO/Virgo sources

Five of the ground-breaking gravitational wave detections by the LIGO/Virgo collaboration have been interpreted as black hole collisions forming a more massive black hole. It is hard to demonstrate conclusively that these objects are indeed black holes, and there is a lively debate on the intriguing possibility that other, more exotic alternatives could explain the observations. In an article published in Physical Review Letters, Gr@v members P. Cunha and C.