A young star-forming galaxy at z = 3.5 with an extended Ly\,$α$ halo seen with MUSE
Research output: Contribution to journal › Journal article › Research › peer-review
Spatially resolved studies of high redshift galaxies, an essential insight into galaxy formation processes, have been mostly limited to stacking or unusually bright objects. We present here the study of a typical (L$^{*}$, M$_\star$ = 6 $\times 10^9$ $M_\odot$) young lensed galaxy at $z=3.5$, observed with MUSE, for which we obtain 2D resolved spatial information of Ly$\alpha$ and, for the first time, of CIII] emission. The exceptional signal-to-noise of the data reveals UV emission and absorption lines rarely seen at these redshifts, allowing us to derive important physical properties (T$_e\sim$15600 K, n$_e\sim$300 cm$^{-3}$, covering fraction f$_c\sim0.4$) using multiple diagnostics. Inferred stellar and gas-phase metallicities point towards a low metallicity object (Z$_{\mathrm{stellar}}$ = $\sim$ 0.07 Z$_\odot$ and Z$_{\mathrm{ISM}}$ $
Original language | English |
---|---|
Journal | Monthly Notices of the Royal Astronomical Society |
Volume | 456 |
Issue number | 4 |
Pages (from-to) | 4191-4208 |
ISSN | 0035-8711 |
DOIs | |
Publication status | Published - 14 Jan 2016 |
Bibliographical note
19 pages, 15 figures, accepted in MNRAS
ID: 166599894