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Illuminating gas inflows/outflows in the MUSE deepest fields: Lyα nebulae around forming galaxies at z ≃ 3.3 by E. Vanzella; I. Balestra; M. Gronke; W. Karman; G. B. Caminha; M. Dijkstra; P. Rosati; S. De Barros; K. Caputi; C. Grillo; P. Tozzi; M. Meneghetti; A. Mercurio; R. Gilli is a Physics and Astronomy article available to read on EtoBox.
What is Illuminating gas inflows/outflows in the MUSE deepest fields: Lyα nebulae around forming galaxies at z ≃ 3.3 about?
We report the identification of extended Lyα nebulae at z 3.3 in the Hubble Ultra Deep Field (HUDF, 40 kpc × 80 kpc) and behind the Hubble Frontier Field galaxy cluster MACSJ0416 ( 40 kpc), spatially associated with groups of star-forming galaxies. VLT/MUSE integral field spectroscopy reveals a complex structure with a spatially varying double-peaked Lyα emission. Overall, the spectral profiles of the two Lyα nebulae are remarkably similar, both showing a prominent blue emission, more intense and slightly broader than the red peak. From the first nebula, located in the HUDF, no X-ray emission has been detected, disfavouring the possible presence of active galactic nuclei. Spectroscopic redshifts have been derived for 11 galaxies within 2 arcsec from the nebula and spanning the redshift range 1.037 < z < 5.97. The second nebula, behind MACSJ0416, shows three aligned star-forming galaxies plausibly associated with the emitting gas. In both systems, the associated galaxies reveal possible intense rest-frame-optical nebular emissions lines [O III] λλ4959, 5007+Hβ with equivalent widths as high as 1500 Å rest frame and star formation rates ranging from a few to tens of solar masses per
Who reads Illuminating gas inflows/outflows in the MUSE deepest fields: Lyα nebulae around forming galaxies at z ≃ 3.3?
It is typically read by researchers, students, and practitioners in Physics and Astronomy.
- Author
- E. Vanzella; I. Balestra; M. Gronke; W. Karman; G. B. Caminha; M. Dijkstra; P. Rosati; S. De Barros; K. Caputi; C. Grillo; P. Tozzi; M. Meneghetti; A. Mercurio; R. Gilli
- Publisher
- John Wiley and Sons; Oxford University Press; Oxford University Press (OUP) (ISSN 0035-8711)
- Published
- 2016
- Language
- EN
- Field
- Physics and Astronomy (Physical Sciences)