344 citations · 1.7k across the 14 of their papers we have counts for
14 papers
Mapping the working of environmental effects in A963
Boris Deshev, Christopher Haines, Ho Seong Hwang +5
We qualitatively assess and map the relative contribution of pre-processing and cluster related processes to the build-up of A963, a massive cluster at z=0.2 showing an unusually h…
Diverse properties of Ly-alpha emission in low-redshift compact star-forming galaxies with extremely high [OIII]/[OII] ratios
Y. I. Izotov, D. Schaerer, G. Worseck +5
We present observations with the Cosmic Origins Spectrograph onboard the Hubble Space Telescope of eight compact star-forming galaxies at redshifts z=0.02811-0.06540, with low oxyg…
Puzzling Lyman-alpha line profiles in green pea galaxies
Ivana Orlitova, Anne Verhamme, Alaina Henry +4
Recent observations have discovered an escape of ionizing Lyman-continuum radiation from a population of compact, actively star-forming galaxies at redshift z~0.3, also known as "g…
J1154+2443: a low-redshift compact star-forming galaxy with a 46 per cent leakage of Lyman continuum photons
Y. I. Izotov, D. Schaerer, G. Worseck +5
We report the detection of the Lyman continuum (LyC) radiation of the compact star-forming galaxy (SFG) J1154+2443 observed with the Cosmic Origins Spectrograph (COS) onboard the H…
Do galaxies that leak ionizing photons have extreme outflows?
J. Chisholm, I. Orlitová, D. Schaerer +5
To reionize the early universe, high-energy photons must escape the galaxies that produce them. It has been suggested that stellar feedback drives galactic outflows out of star-for…
The VIMOS Ultra Deep Survey: The role of HI kinematics and HI column density on the escape of Lyalpha photons in star-forming galaxies at 2<z<4
L. Guaita, M. Talia, L. Pentericci +22
We selected a sample of 76 Lya emitting galaxies from the VIMOS Ultra Deep Survey (VUDS) at 2<z<4. We estimated the velocity of the neutral gas flowing out of the interstellar medi…
Lyman-alpha spectral properties of five newly discovered Lyman continuum emitters
A. Verhamme, I. Orlitova, D. Schaerer +4
We have recently reported the discovery of five low redshift Lyman continuum (LyC) emitters (LCEs, hereafter) with absolute escape fractions fesc(LyC) ranging from 6 to 13%, higher…
The ionizing photon production efficiency of compact z~0.3 Lyman continuum leakers and comparison with high redshift galaxies
D. Schaerer, Y. I. Izotov, A. Verhamme +4
We have recently discovered five Lyman continuum leaking galaxies at z~0.3, selected for their compactness, intense star-formation, and high [OIII]/[OII] ratio (Izotov et al. 2016a…
Detection of high Lyman continuum leakage from four low-redshift compact star-forming galaxies
Y. I. Izotov, D. Schaerer, T. X. Thuan +4
Following our first detection reported in Izotov et al. (2016), we present the detection of Lyman continuum (LyC) radiation of four other compact star-forming galaxies observed wit…
Lyman continuum leaking from the compact star-forming dwarf galaxy J0925+1403
Y. I. Izotov, I. Orlitova, D. Schaerer +4
One of the key questions in observational cosmology is the identification of the sources responsible for ionisation of the Universe after the cosmic Dark Ages, when the baryonic ma…
The Lyman alpha Reference Sample VI: Lyman alpha escape from the edge-on disk galaxy Mrk1486
Florent Duval, Göran Östlin, Matthew Hayes +16
While numerical simulations suggest that the strength of the Lyman alpha (Lya) line of star-forming disk galaxies strongly depends on the inclination at which they are observed (i.…
The Lyman alpha reference sample. VII. Spatially resolved H kinematics
Edmund Christian Herenz, Pieter Gruyters, Ivana Orlitova +19
We present integral field spectroscopic observations with the Potsdam Multi Aperture Spectrophotometer of all 14 galaxies in the Lyman Alpha Reference Sample (LARS). We…
The Lyman alpha reference sample: IV. Morphology at low and high redshift
L. Guaita, J. Melinder, M. Hayes +3
We measured the sizes and morphological parameters of LARS galaxies in the continuum, Lya, and Ha images. We studied morphology by using the Gini coefficient vs M20 and asymmetry v…
The Lyman alpha Reference Sample: Extended Lyman alpha Halos Produced at Low Dust Content
Matthew Hayes, Göran Östlin, Daniel Schaerer +14
We report on new imaging observations of the Lyman alpha emission line (Lya), performed with the Hubble Space Telescope, that comprise the backbone of the Lyman alpha Reference Sam…