Recent star count surveys of areas around globular star clusters have shown strong evidence of tidal tails stretching out many degrees beyond the cluster tidal radius. These tails are believed to be cluster stars which have escaped due to tidal shocking after passages through the disk of the Galaxy. Although the statistical star counts indicate and
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A Search for Kinematic Evidence of Tidal Tails in Globular ClustersLauchner, A. et al.122003
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A Search for New Planetary Nebulae Located at Large Galactocentric Distances
We introduce the new Galactic Plane Hα survey IPHAS, present our PNe selection method, and discuss two examples of very distant new PNe.
Mampaso, A. et al.Advertised on:
122007 -
A search for optical bursts from the repeating fast radio burst FRB 121102
We present a search for optical bursts from the repeating fast radio burst FRB 121102 using simultaneous observations with the high-speed optical camera ULTRASPEC on the 2.4-m Thai National Telescope and radio observations with the 100-m Effelsberg Radio Telescope. A total of 13 radio bursts were detected, but we found no evidence for corresponding
Hardy, L. K. et al.Advertised on:
122017 -
A search for planetary-mass objects and brown dwarfs in the Upper Scorpius association
We report the results of a deep photometric search for planets and brown dwarfs in the nearby young OB Upper Scorpius association. We obtained optical (I) and near-infrared (JK_s) images around nine very low-mass stars and brown dwarf member candidates of the association, covering a total area of 113 arcmin^2. Using a point spread function
Costado, M. T. et al.Advertised on:
122005 -
A search for solar-like oscillations in the stars of M67 with CCD ensemble photometry on a network of 4 M telescopes
Results are presented from a large observational project directed toward the detection of solar-like oscillations in an ensemble of open cluster stars. Seven groups collaborated in 1992 January to observe twelve stars in M67 with 4 m class telescopes for a one week period. High quality time series were collected on 22 telescope nights for a total
Gilliland, R. L. et al.Advertised on:
121993 -
A search for stellar tidal debris of defunct dwarf galaxies around globular clusters in the inner Galactic halo
In the hierarchical formation scenario in which the outer halo of the Milky Way is the result of the continuous accretion of low-mass galaxies, a fraction of the Galactic globular cluster system might have originated in and been accreted with already extinct dwarf galaxies. In this context, we expect that the remnants of these progenitor galaxies
Carballo-Bello, J. A. et al.Advertised on:
122014