593 citations · 1.8k across the 38 of their papers we have counts for
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Optical Spectra of Ultracool Dwarfs with the Southern African Large Telescope
C. Koen, B. Miszalski, P. Väisänen +1
New spectra of 81 ultracool dwarfs (spectral types M7 and later) are discussed. Spectral classifications of 49 objects are available in the literature, while 32 objects are newly c…
High proper motion objects towards the inner Milky Way: characterisation of newly identified nearby stars from the VISTA Variables in the Via Lactea Survey
M. Gromadzki, R. Kurtev, J. C. Beamin +10
The census of the Solar neighbourhood is still incomplete, as demonstrated by recent discoveries of many objects within 5-10 pc from the Sun. The area around the mid-plane and bulg…
Supernovae and extragalactic astronomy with laser guide star adaptive optics
Stuart D. Ryder, Seppo Mattila, Erkki Kankare +1
Using the latest generation of adaptive optics imaging systems together with laser guide stars on 8m-class telescopes, we are finally revealing the previously-hidden population of…
Discovery of Two Supernovae in the Nuclear Regions of the Luminous Infrared Galaxy IC 883
E. Kankare, S. Mattila, S. Ryder +10
We report the discovery of two consecutive supernovae (SNe), 2010cu and 2011hi, located at 0.37" (180 pc) and 0.79" (380 pc) projected distance respectively from the centre of the…
The absence of sub-minute periodicity in classical T Tauri stars
H. M. Günther, N. Lewandowska, M. P. G. Hundertmark +6
Classical T Tauri stars (CTTS) are young, late-type objects, that still accrete matter from a circumstellar disk. Analytical treatments and numerical simulations predict instabilit…