Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Calhau, Joao"'
Autor:
Matthee, Jorryt, Naidu, Rohan P., Pezzulli, Gabriele, Gronke, Max, Sobral, David, Oesch, Pascal A., Hayes, Matthew, Erb, Dawn, Schaerer, Daniel, Amorín, Ricardo, Tacchella, Sandro, Paulino-Afonso, Ana, Llerena, Mario, Calhau, João, Röttgering, Huub
The cosmic ionizing emissivity from star-forming galaxies has long been anchored to UV luminosity functions. Here we introduce an emissivity framework based on Ly$\alpha$ emitters (LAEs), which naturally hones in on the subset of galaxies responsible
Externí odkaz:
http://arxiv.org/abs/2110.11967
Autor:
Naidu, Rohan P., Matthee, Jorryt, Oesch, Pascal A., Conroy, Charlie, Sobral, David, Pezzulli, Gabriele, Hayes, Matthew, Erb, Dawn, Amorín, Ricardo, Gronke, Max, Schaerer, Daniel, Tacchella, Sandro, Kerutt, Josephine, Paulino-Afonso, Ana, Calhau, João, Llerena, Mario, Röttgering, Huub
The ionizing photon escape fraction (LyC $f_{\rm{esc}}$) of star-forming galaxies is the single greatest unknown in the reionization budget. Stochastic sightline effects prohibit the direct separation of LyC leakers from non-leakers at significant re
Externí odkaz:
http://arxiv.org/abs/2110.11961
Autor:
van der Wel, Arjen, Bezanson, Rachel, D'Eugenio, Francesco, Straatman, Caroline, Franx, Marijn, van Houdt, Josha, Maseda, Michael V., Gallazzi, Anna, Wu, Po-Feng, Pacifici, Camilla, Barisic, Ivana, Brammer, Gabriel B., Munoz-Mateos, Juan Carlos, Vervalcke, Sarah, Zibetti, Stefano, Sobral, David, de Graaff, Anna, Calhau, Joao, Kaushal, Yasha, Muzzin, Adam, Bell, Eric F., van Dokkum, Pieter G.
We present the third and final data release of the Large Early Galaxy Astrophysics Census (LEGA-C), an ESO/VLT public spectroscopic survey targeting $0.6 < z < 1.0$, Ks-selected galaxies. The data release contains 3528 spectra with measured stellar v
Externí odkaz:
http://arxiv.org/abs/2108.00744
Autor:
Santos, Sérgio, Sobral, David, Butterworth, Josh, Paulino-Afonso, Ana, Ribeiro, Bruno, da Cunha, Elisabete, Calhau, João, Khostovan, Ali Ahmad, Matthee, Jorryt, Haro, Pablo Arrabal
We measure the evolution of the rest-frame UV luminosity function (LF) and the stellar mass function (SMF) of Lyman-alpha (Lya) emitters (LAEs) from z~2 to z~6 by exploring ~4000 LAEs from the SC4K sample. We find a correlation between Lya luminosity
Externí odkaz:
http://arxiv.org/abs/2105.00007
The X-SHOOTER Lyman-$\alpha$ survey at z=2 (XLS-z2) I: What makes a galaxy a Lyman-$\alpha$ emitter?
Autor:
Matthee, Jorryt, Sobral, David, Hayes, Matthew, Pezzulli, Gabriele, Gronke, Max, Schaerer, Daniel, Naidu, Rohan P., Röttgering, Huub, Calhau, João, Paulino-Afonso, Ana, Santos, Sérgio, Amorín, Ricardo
We present the first results from the X-SHOOTER Lyman-$\alpha$ survey at $z=2$ (XLS-$z2$). XLS-$z2$ is a deep spectroscopic survey of 35 Lyman-$\alpha$ emitters (LAEs) utilising $\approx90$ hours of exposure time with VLT/X-SHOOTER and covers rest-fr
Externí odkaz:
http://arxiv.org/abs/2102.07779
Autor:
Santos, Sérgio, Sobral, David, Matthee, Jorryt, Calhau, João, da Cunha, Elisabete, Ribeiro, Bruno, Paulino-Afonso, Ana, Haro, Pablo Arrabal, Butterworth, Josh
We explore deep rest-frame UV to FIR data in the COSMOS field to measure the individual spectral energy distributions (SED) of the ~4000 SC4K (Sobral et al. 2018) Lyman-alpha (Lya) emitters (LAEs) at z~2-6. We find typical stellar masses of 10$^{9.3\
Externí odkaz:
http://arxiv.org/abs/1910.02959
Autor:
Calhau, João, Sobral, David, Santos, Sérgio, Matthee, Jorryt, Paulino-Afonso, Ana, Stroe, Andra, Simmons, Brooke, Barlow-Hall, Cassandra, Adams, Benjamin
Despite recent progress in understanding Lyman-alpha (Lya) emitters (LAEs), relatively little is known regarding their typical black hole activity across cosmic time. Here, we study the X-ray and radio properties of ~4000 LAEs at 2.2
Externí odkaz:
http://arxiv.org/abs/1909.11672
Autor:
Khostovan, Ali Ahmad, Sobral, David, Mobasher, Bahram, Matthee, Jorryt, Cochrane, Rachel K., Soltani, Nima Chartab, Jafariyazani, Marziye, Paulino-Afonso, Ana, Santos, Sergio, Calhau, Joao
We investigate the clustering and halo properties of $\sim 5000$ Ly$\alpha$-selected emission line galaxies (LAEs) from the Slicing COSMOS 4K (SC4K) and from archival NB497 imaging of SA22 split in 15 discrete redshift slices between $z \sim 2.5 - 6$
Externí odkaz:
http://arxiv.org/abs/1811.00556
Autor:
Straatman, Caroline M. S., van der Wel, Arjen, Bezanson, Rachel, Pacifici, Camilla, Gallazzi, Anna, Wu, Po-Feng, Noeske, Kai, Barisic, Ivana, Bell, Eric F., Brammer, Gabriel B., Calhau, Joao, Chauke, Priscilla, Franx, Marijn, van Houdt, Josha, Labbe, Ivo, Maseda, Michael V., Munoz-Mateos, Juan C., Muzzin, Adam, van de Sande, Jesse, Sobral, David, Spilker, Justin S.
We present the second data release of the Large Early Galaxy Astrophysics Census (LEGA-C), an ESO 130-night public spectroscopic survey conducted with VIMOS on the Very Large Telescope. We release 1988 spectra with typical continuum S / N ~= 20 /Angs
Externí odkaz:
http://arxiv.org/abs/1809.08236
Autor:
Chauke, Priscilla, van der Wel, Arjen, Pacifici, Camilla, Bezanson, Rachel, Wu, Po-Feng, Gallazzi, Anna, Noeske, Kai, Straatman, Caroline, Muños-Mateos, Juan-Carlos, Franx, Marijn, Barišić, Ivana, Bell, Eric F., Brammer, Gabriel B., Calhau, Joao, van Houdt, Josha, Labbé, Ivo, Maseda, Michael V., Muzzin, Adam, Rix, Hans-Walter, Sobral, David
Using high resolution spectra from the VLT LEGA-C program, we reconstruct the star formation histories (SFHs) of 607 galaxies at redshifts $z = 0.6-1.0$ and stellar masses $\gtrsim10^{10}$M$_{\odot}$ using a custom full spectrum fitting algorithm tha
Externí odkaz:
http://arxiv.org/abs/1805.02568