88 citations · 234 across the 9 of their papers we have counts for
9 papers
Detection of the [C I] 8727 emission line. Low-ionization structures in NGC 7009
Stavros Akras, Hektor Monteiro, Jeremy R. Walsh +5
We report the first spatially resolved detection of the near-infrared [C I] 8727 emission from the outer pair of low-ionization structures in the planetary nebula NGC 7009 from…
HeI in the central Giant HII Region of NGC 5253. A 2D observational approach to collisional and radiative transfer effects
A. Monreal-Ibero, J. R. Walsh, M. S. Westmoquette +1
ABRIDGED: NGC5253 is an ideal laboratory for detailed studies of starburst galaxies. We present for the first time in a starburst galaxy a 2D study of the spatial behavior of colli…
The Lyman break analogue Haro 11: spatially resolved chemodynamics with VLT FLAMES
B. L. James, Y. G. Tsamis, J. R. Walsh +2
Using VLT/FLAMES optical integral field unit observations, we present the first spatially resolved spectroscopic study of the well known blue compact galaxy Haro11, thought to be a…
Chemical abundances in the protoplanetary disk LV2 (Orion) - II: High dispersion VLT observations and microjet properties
Y. G. Tsamis, J. R. Walsh
Integral field spectroscopy of the LV2 proplyd is presented taken with the VLT/FLAMES Argus array at an angular resolution of 0.31x0.31 arcsec^2 and velocity resolutions down to 2…
Chemical abundances in the protoplanetary disk LV2 (Orion): clues to the causes of the abundance anomaly in HII regions
Y. G. Tsamis, J. R. Walsh, J. M. Vílchez +1
Optical integral field spectroscopy of the archetype protoplanetary disk LV2 in the Orion Nebula is presented, taken with the VLT FLAMES/Argus fibre array. The detection of recombi…
A VLT VIMOS study of the anomalous BCD Mrk 996: mapping the ionised gas kinematics and abundances
B. L. James, Y. G. Tsamis, M. J. Barlow +4
A study of the blue compact dwarf (BCD) galaxy Mrk 996 based on high resolution optical VLT VIMOS integral field unit spectroscopy is presented. Mrk 996 displays multi-component li…
Unravelling the chemical inhomogeneity of PNe with VLT FLAMES integral-field unit spectroscopy
Y. G. Tsamis, J. R. Walsh, D. Pequignot +3
Recent weak emission-line long-slit surveys and modelling studies of PNe have convincingly argued in favour of the existence of an unknown component in the planetary nebula plasma…
Acquisition and analysis of adaptive optics imaging polarimetry data
N. Ageorges, J. R. Walsh
The process of data taking, reduction and calibration of near-infrared imaging polarimetry data taken with the ESO Adaptive Optics System ADONIS is described. The ADONIS polarimetr…
Highly supersonic motions within the outer features of the Eta Carinae nebulosity
J. Meaburn, P. Boumis, J. R. Walsh +4
Spatially resolved H and [N{\sc ii}] line profiles have been obtained over striking features in the outer regions of the Eta Carinae nebula. The highly irregular outer `shell' o…