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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 IAD. Sobral, J. Matthee, P. Best, A. Stroe, H. J. A. R÷ttgering, 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, 1242 - 1258
>> Abstract
A. Stroe, D. Sobral, A. Paulino-Afonso, L. Alegre, J. Calhau, S. Santos, R. J. van Weeren, 2017,
A large Hα survey of star formation in relaxed and merging galaxy cluster environments at z~0.15-0.3,
Monthly Notices of the Royal Astronomical Society, 465, 2916 - 2935
>> 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, 2717 - 2733
>> Abstract
J. Calhau, D. Sobral, A. Stroe, P. Best, I. Smail, B. Lehmer, C. M. Harrison, A. Thomson, 2017,
The growth of typical star-forming galaxies and their supermassive black holes across cosmic time since z similar to 2,
Astronomy and Astrophysics, 464, 303 - 311
>> Abstract
S. Santos, D. Sobral, J. Matthee, 2016,
The Lyα luminosity function at z = 5.7 - 6.6 and the steep drop of the faint end: implications for reionization,
Monthly Notices of the Royal Astronomical Society, 463, 1678 - 1691
>> Abstract
B. Darvish, B. Mobasher, D. Sobral, A. Rettura, N. Z. Scoville, A. Faisst, P. Capak, 2016,
The Effects of the Local Environment and Stellar Mass on Galaxy Quenching to z~3,
The Astrophysical Journal, 825
>> Abstract

David Sobral
Instituto de Astrof├şsica e Ci├¬ncias do Espa├žo Universidade do Porto Faculdade de Ciências da Universidade de Lisboa Funda├ž├úo para a Ci├¬ncia e a Tecnologia