Seminars

Wednesday Colloquium

 future talks and archive

The Colloquium takes place every Wednesday at 11:15 AM - Warsaw Copernicus Astronomical Centre (Lecture Theatre), Bartycka 18. The Colloquium is given in English and chaired by dr Stanisław Bajtlik (bajtlik@camk.edu.pl).

27.09.2017
"Gravitational Wave Detection and Parameter Estimation"

Matthew Benacquista (University of Texas)

In light of the recent detections of gravitational waves from binary black holes with LIGO/Virgo, I will discuss the physics of the generation, propagation, and detection of gravitational waves with an emphasis on parameter estimation. In particular, I will highlight the uncertainties and selection effects in the observations and the limitations in determining the origin of these sources.

 


Special seminars

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No forthcoming seminars.

Journal Club

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Journal Club takes place on Mondays at 11:10 AM in the Barek room. The seminar is given in English and is chaired by Bei You, Miljenko Cemeljic and Varada Parthasarathy

25.09.2017
"Multi-wavelength Variability and QPOs in Blazars"

Dr. Alok C. Gupta (Aryabhatta Research Institute of Observational Sciences (ARIES) )

Blazar is a subclass of radio loud AGN which show flux variation in the complete EM spectrum on diverse timescales ranging from as short as a few tens of minutes and as long as several years. The blazar emission is predominantly non-thermal. In the present talk, I will discuss some of interesting recent results published by my group based on multi-wavelength ground and space based data. We have detected flux variation in blazars on diverse time scales, cross-correlated multi-wavelength flux and spectral variabilities. We have also detected quasi-periodic oscillations (QPOs) in time series data of blazars in optical and X-ray bands. I will also briefly describe which are dominant AGN standard models which can explain our findings.

 


 archive

The Bohdan Paczyński Memorial Colloquium

 

No forthcoming seminars.

 


GeoPlanet Seminars

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No forthcoming seminars.