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David Sobral

Personal webpage

Biographic notes
I conduct a wide range of observations and use different telescopes (e.g. VLT, Subaru, CFHT, UKIRT, INT, WHT) in order to understand how galaxies like our own formed and evolved from the primitive Universe till today. I have conducted by far the largest H-alpha surveys (and recently Lyman-alpha) spanning the bulk of the history of the Universe. I'm particularly interested in star-forming galaxies. In 2012 I was awarded a 3-year, 250k EUR Veni fellowship/grant by NWO, followed by a FCT Investigator (2012) 5-year Starting Grant at CAAUL/FCUL in late 2013.


Lastest publications at IAJ. Matthee, D. Sobral, M. Gronke, A. Paulino-Afonso, M. Stefanon, H. J. A. Röttgering, 2018,
Confirmation of double peaked Lyα emission at z = 6.593
Witnessing a galaxy directly contributing to the reionisation of the Universe
Astronomy and Astrophysics, 619, 15
>> Abstract
A. S. P. Afonso, D. Sobral, B. R. L. Ribeiro, J. Matthee, S. Santos, J. Calhau, K. Forster, A. Forshaw, A. Johnson, J. Merrick, S. Pérez Sánchez, O. Sheldon, 2018,
On the UV compactness and morphologies of typical Lyman alpha emitters from z∼2 to z∼6,
Monthly Notices of the Royal Astronomical Society, 476, 23
>> Abstract
D. Sobral, S. Santos, J. Matthee, A. S. P. Afonso, B. R. L. Ribeiro, J. Calhau, A. A. Khostovan, 2018,
Slicing COSMOS with SC4K: the evolution of typical Lyα emitters and the Lyα escape fraction from z∼2 to 6,
Monthly Notices of the Royal Astronomical Society, 476, 28
>> Abstract
J. Matthee, D. Sobral, B. Darvish, S. Santos, B. Mobasher, A. Paulino-Afonso, H. Rottgering, L. Alegre, 2017,
Spectroscopic properties of luminous Ly α emitters at z ≈ 6–7 and comparison to the Lyman-break population,
Monthly Notices of the Royal Astronomical Society, 472, 18
>> Abstract
D. Sobral, J. Matthee, P. Best, A. Stroe, H. J. A. Röttgering, I. Oteo, I. Smail, L. Morabito, A. Paulino-Afonso, 2017,
The CALYMHA survey: Lyα luminosity function and global escape fraction of Lyα photons at z = 2.23,
Monthly Notices of the Royal Astronomical Society, 466, 17
>> Abstract
A. Paulino-Afonso, D. Sobral, F. Buitrago, J. Afonso, 2017,
The structural and size evolution of star-forming galaxies over the last 11 Gyr,
Monthly Notices of the Royal Astronomical Society, 465, 17
>> Abstract

David Sobral
Instituto de Astrofísica e Ciências do Espaço Universidade do Porto Faculdade de Ciências da Universidade de Lisboa
Fundação para a Ciência e a Tecnologia COMPETE 2020 PORTUGAL 2020 União Europeia