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A critical analysis of the UV Luminosity Function at redshift~7 from deep WFC3 data
A. Grazian, M. Castellano, A. M. Koekemoer +7
The study of the Luminosity Function (LF) of Lyman Break Galaxies (LBGs) at z=7 is important for ascertaining their role in the reionization of the Universe. We perform a detailed…
Spectroscopic confirmation of two Lyman break galaxies at redshift beyond 7
E. Vanzella, L. Pentericci, A. Fontana +12
We report the spectroscopic confirmation of two Lyman break galaxies at redshift > 7. The galaxies were observed as part of an ultra-deep spectroscopic campaign with FORS2 at the E…
The lack of intense Lyman~alpha in ultradeep spectra of z=7 candidates in GOODS-S: imprint of reionization?
A. Fontana, E. Vanzella, L. Pentericci +10
We present ultradeep optical spectroscopy obtained with FORS2 on VLT of seven Lyman-break galaxy (LBG) candidates at z>6.5 selected in the GOODS-S field from Hawk-I/VLT and WFC3/HS…
The Great Observatories Origins Deep Survey: Constraints on the Lyman Continuum Escape Fraction Distribution of Lyman--Break Galaxies at 3.4<z<4.5
E. Vanzella, M. Giavalisco, A. Inoue +13
We use ultra-deep ultraviolet VLT/VIMOS intermediate-band and VLT/FORS1 narrow-band imaging in the GOODS Southern field to derive limits on the distribution of the escape fraction…
The bright end of the z ~ 7 UV Luminosity Function from a wide and deep HAWK-I survey
M. Castellano, A. Fontana, D. Paris +23
(Abridged) We present here the second half of an ESO Large Programme, which exploits the unique combination of area and sensitivity provided in the near-IR by the camera Hawk-I at…
Selecting AGN through variability in SN datasets
K. Boutsia, B. Leibundgut, D. Trevese +1
Variability is a main property of active galactic nuclei (AGN) and it was adopted as a selection criterion using multi epoch surveys conducted for the detection of supernovae (SNe)…