Astrophysics of Bertrand space-times

Ongoing Space Physics - Astrophysics Connections

I review several ongoing connections between space physics and astrophysics: a) Measurements of energetic particle spectra have confirmed theoretical prediction of the highest energy to which shocks can accelerate particles, and this has direct bearing on the origin of the highest energy cosmic rays. b) Mass ejection in solar flares may help us understand photon ejection in the giant flares of ...

Bolometric Detectors for Space Astrophysics

An overview is given of the status of arrays of bolometric detectors for space astrophysics at wavelengths from ~ 40 to ~ 3000μm. The existing technologies based on semiconductor thermistors that are being prepared for current space missions are described first. The new opportunities provided by superconducting TES technology for large format arrays with multiplexed readouts are then described....

Astronomy, Astrophysics & Space Physics in Greece

In the present document I review the current organizational structure of Astronomy, Astrophysics and Space Physics in Greece. I briefly present the institutions where professional astronomers are pursuing research, along with some notes of their history, as well as the major astronomical facilities currently available within Greece. I touch upon topics related to graduate studies in Greece and ...

Space-times with Torsion

We study models of axi-dilaton gravity in space-time geometries with torsion. We discuss conformal rescaling rules in both Riemannian and non-Riemannian formulations. We give static, spherically symmetric solutions and examine their singularity behaviour. PACS numbers: 04.50.+h, 04.20.Jb, 04.70.Bw E.mail: [email protected] E.mail: [email protected] 1

Five-Dimensional Space-Times