Talk detail

MG13 - Talk detail

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 Participant

Ansoldi, Stefano

Institution

University of Udine  - via delle Scienze 206 - Udine - UD - Italy

Session

AT3

Accepted

Yes

Order

5

Time

15:20 - 15:35 15' + 5'

Talk

Oral abstract

Title

Multihorizon regular black holes
Co-authors Lorenzo Sindoni

Abstract

We discuss a general procedure to generate a class of (everywhere regular) solutions of Einstein equations that can have an (a-priori fixed) arbitrary number of horizons. We then report on work currently in progress i) to find a suitable classification scheme for the maximal extension of these solutions and ii) to interpret the source term in Einstein equations as an effective contribution arising from higher dimensional and/or modified gravity.

Session

AP2

Accepted

Yes

Order

5

Time

20'

Talk

Oral abstract

Title

Best fits of simultaneous blazar spectral energy distributions
Co-authors N. Mankuzhiyil, M. Persic

Abstract

We report about recent progress in the first numerical implementations of spectral energy distribution (SED) fits to estimate synchrotron-self Compton (SSC) model parameters. Using two well observed objects, Markarian 421 and Markarian 501, we will highlight the strength of the method, as well as plans for future improvements.

Session

CM3

Accepted

Yes

Order

5

Time

15:40 - 16:00

Talk

Oral abstract

Title

Enhanced tunnelling models for child universe formation
Co-authors

Abstract

Starting from a recently proposed model that allows for an enhanced rate of child universe production under generic conditions, we elaborate on refinements that may allow for non-singular initial configurations. A possibility to treat both, the initial state and the tunnelling, also beyond the semiclassical level will also be discussed.

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