Add to ORKGWe report results from a survey of high velocity clouds and the Magellanic Stream for faint, diffuse optical recombination emission lines. We detect H-alpha emission with surface brightness from 41 to 1680 milli-Rayleighs (mR) from HVCs, and from <40 to 1360 mR in the MS. A simple model for the photoionizing radiation emergent from the Galaxy, normalized to the HVCs A and M with known distances, predicts distances from a few to 40 kpc, placing the faintest HVCs in the Galactic halo, too far away for a Galactic fountain. This model cannot explain the bright and spatially varying H-alpha in the Magellanic Stream, which requires another source of ionization. However, we do not find any HVCs super-faint in H-alpha; even with another ionization ...
We present distance estimates to a set of high-latitude intermediate-velocity HI clouds. We explore ...
A catalog of southern anomalous-velocity H I clouds at decl. < + 2 is presented. This catalog is bas...
A full understanding of the High Velocity Clouds (HVCs) is still lacking more than four decades afte...
We present deep Halpha spectroscopy toward several high-velocity clouds (HVCs), which vary in struct...
We present medium-resolution, near-ultraviolet Very Large Telescope/FLAMES observations of the star ...
Context. There is a connection between the kinematics and sky distribution of the high velocity clou...
We observed two compact high-velocity clouds HVC 291+26+195 and HVC 297+09+253 to analyse their stru...
We present a high-resolution study of five high-velocity clouds in the Magellanic Leading Arm region...
We have detected faint, diffuse H\alpha\ emission from several points along the Magellanic Stream, u...
The high-velocity clouds of atomic hydrogen, discovered about 35 years ago, have velocities inconsis...
From H alpha narrowband observations, we identified three H alpha emitting regions in the direction ...
High velocity gas that does not conform to Galactic rotation is observed throughout the Galaxy's hal...
ABSTRACT Using the 100-m radio telescope at Effelsberg, we mapped a large area around the Andromeda ...
This thesis presents an exploration of stars and gas in the halo of our Galaxy. A sample of 8321 fie...
Aims.We observed two compact high-velocity clouds HVC 291+26+195 and HVC 297+09+253 to analyse their...
We present distance estimates to a set of high-latitude intermediate-velocity HI clouds. We explore ...
A catalog of southern anomalous-velocity H I clouds at decl. < + 2 is presented. This catalog is bas...
A full understanding of the High Velocity Clouds (HVCs) is still lacking more than four decades afte...
We present deep Halpha spectroscopy toward several high-velocity clouds (HVCs), which vary in struct...
We present medium-resolution, near-ultraviolet Very Large Telescope/FLAMES observations of the star ...
Context. There is a connection between the kinematics and sky distribution of the high velocity clou...
We observed two compact high-velocity clouds HVC 291+26+195 and HVC 297+09+253 to analyse their stru...
We present a high-resolution study of five high-velocity clouds in the Magellanic Leading Arm region...
We have detected faint, diffuse H\alpha\ emission from several points along the Magellanic Stream, u...
The high-velocity clouds of atomic hydrogen, discovered about 35 years ago, have velocities inconsis...
From H alpha narrowband observations, we identified three H alpha emitting regions in the direction ...
High velocity gas that does not conform to Galactic rotation is observed throughout the Galaxy's hal...
ABSTRACT Using the 100-m radio telescope at Effelsberg, we mapped a large area around the Andromeda ...
This thesis presents an exploration of stars and gas in the halo of our Galaxy. A sample of 8321 fie...
Aims.We observed two compact high-velocity clouds HVC 291+26+195 and HVC 297+09+253 to analyse their...
We present distance estimates to a set of high-latitude intermediate-velocity HI clouds. We explore ...
A catalog of southern anomalous-velocity H I clouds at decl. < + 2 is presented. This catalog is bas...
A full understanding of the High Velocity Clouds (HVCs) is still lacking more than four decades afte...