346 citations · 4.9k across the 122 of their papers we have counts for
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High Spatial Resolution Galactic 3D Extinction Mapping with IPHAS
S. E. Sale, J. E. Drew, Y. C. Unruh +12
We present an algorithm ({\scshape mead}, for `Mapping Extinction Against Distance') which will determine intrinsic () colour, extinction, and distance for early-A to K4 s…
A planetary nebula around nova V458 Vul undergoing flash ionization
R. Wesson, M. J. Barlow, R. L. M. Corradi +25
Nova V458 Vul erupted on 2007 August 8th and reached a visual magnitude of 8.1 a few days later. H images obtained six weeks before the outburst as part of the IPHAS galactic pl…
Discovery of a widely separated UCD-WD binary
A. C. Day-Jones, D. J. Pinfield, R. Napiwotzki +6
We present the discovery of the widest known ultracool dwarf - white dwarf binary. This binary is the first spectroscopically confirmed widely separated system from our target samp…
Hypervelocity Stars: Young and Heavy or Old and Light?
Uli Heber, Heiko Hirsch, Heinz Edelmann +4
The first three hyper-velocity stars (HVS) unbound to the Galaxy were serendipitously discovered in 2005. The only suggested origin of hyper-velocity stars is the Galactic Centre a…
Model Spectra of Hot Subdwarfs for the Gaia Mission
L. Hindson, R. Napiwotzki, U. Heber +1
The Gaia mission will provide an unprecedented 3D view of our galaxy, it will obtain astrometric, photometric and spectrographic data for roughly one billion stars. We are particul…
Metal Abundances of Subdwarf B Stars from SPY - a Pattern Emerges
S. Geier, U. Heber, R. Napiwotzki
The formation of sdBs is still puzzling, as is the chemical composition of their atmospheres. While helium and other light elements are depleted relative to solar values, heavy ele…