- Highlight talk at FIRST STARS VI Concepcion, Chile FirstStarsVI (March, 2020)
- Seminar at New York University Abu-Dhabi (May, 2019)
- Talk at Aspen Center for Physics USA, The End of the Cosmic Dark Ages, (March, 2019 )
- Seminar at United Arab Emirates University (September, 2018)
- Formation of Supermassive Stars, Monash University Prato Center, Italy (November, 2017)
- Colloquium at ICG, University of Portsmouth, UK (May, 2017)
- Seminar at ICS, University of Zurich, Switzerland (September, 2016)
- Talk at Illuminating the Dark Ages: Quasars and Galaxies in the Reionization Epoch, MPIA, Heidelberg, Germany (July 1, 2016)
- Talk at KITP, University of California Santa Barbara, USA (May 2016)
- Astronomy department, Columbia University, New York, USA (March 03, 2016)
- The Reionization Epoch: New Insights and Future Prospects, Aspen Center for Physics, USA (March 6-12, 2016)
- Astro Coffee, The Ohio Sate University, USA (March 18, 2016)
- Colloquium at the Kavli Institute for Astronomy and Astrophysics, Peking Univesity, China (January 15-20, 2016)
- Shanghai Astronomical Observatory, Shanghai, China (January 05, 2015)
- Demographics and environment of AGN from multi-wavelength survey, Crete Island, Chania, Greece (Septemeber 21-24, 2015)
- Guillermo Haro Workshop on forming and fueling supermassive black holes, Tonantzintla, Puebla, Mexico (July 6-24,2015)
- European Week of Astronomy and Space Science, Tenerife, Spain (22-26th June, 2015)
- First stars, galaxies, and black holes: Now and Then, Groningen, the Netherlands (15-19th June, 2015)
- Postdoc meeting at Institute for Astrophysics Paris, France (February, 2015)
- ICAP journal-club ("Initiative in Cosmology and AstroParticle Physics") at IAP, France (December, 2014)
- Workshop on the formation of first galaxies, Eidenburgh, UK 2014
- Max Planck Institut für Astrophysik, Garching, Germany 2014
- International space research Institute, Bern, Switzerland 2014
- BLACK meeting at Institute for Astrophysics, Paris, France (June 2014)
- Colloquium talk entitled "Black hole formation in the early universe" collaborative research center (SFB-963), Goettingen, Germany
- Physical processes in ISM at Max-Planck-Institut für extraterrestrische Physik, Garching, Germany (October, 2013)
- Astrophysical turbulence conference, Dresden, Germany (October, 2013)
- Cosmic Dawn, Ringberg Castle, Germany (June, 16-21, 2013)
- Chemistry, Turbulence and Magnetic fields, Goettingen, Germany (October, 2012)
- Annual Meeting of the Astronomische Gesellschaft, Hamburg, Germany (September, 2012)
- Colloquium at Kapteyn Astronomical Institute university of Groningen, the Netherlands
- CosmoFirstObjects: Laboratoire d Astrophysique de Marseille (LAM), Marseille, France (3-6th May 2011)
- NOVA Fall School: Gravitational Lensing and Exoplanets, Dwingeloo the Netherlands
- Several talks in Goettingen, Germany; Groningen, the Netherlands: Paris, France