84 citations · 697 across the 20 of their papers we have counts for
6 papers · 1 filter
A Giant Planet Around a Metal-poor Star of Extragalactic Origin
Johny Setiawan, Rainer J. Klement, Thomas Henning +6
Stars in their late stage of evolution, such as Horizontal Branch stars, are still largely unexplored for planets. We report the detection of a planetary companion around HIP 13044…
The visitor from an ancient galaxy: A planetary companion around an old, metal-poor red horizontal branch star
Rainer J. Klement, Johny Setiawan, Thomas Henning +6
We report the detection of a planetary companion around HIP 13044, a metal-poor red horizontal branch star belonging to a stellar halo stream that results from the disruption of an…
Classification of field dwarfs and giants in RAVE and its use in stellar stream detection
Rainer J. Klement, Coryn A. L. Bailer-Jones, Burkhard Fuchs +2
An efficient separation between dwarfs and giants in surveys of bright stars is important, especially for studies in which distances are estimated through photometric parallax rela…
Observational Evidence from SDSS for a Merger Origin of the Milky Way's Thick Disk
Marion Dierickx, Rainer J. Klement, Hans-Walter Rix +1
We test competing models that aim at explaining the nature of stars in the Milky Way that are well away (|z| 1kpc) from the midplane, the so-called thick disk: the stars m…
Photometric identification of blue horizontal branch stars
Kester W. Smith, Coryn A. L. Bailer-Jones, Rainer J. Klement +1
We investigate the performance of some common machine learning techniques in identifying BHB stars from photometric data. To train the machine learning algorithms, we use previousl…
Stellar halo streams in the Solar neighbourhood
Rainer J. Klement
The phase-space structure of our Galaxy holds the key to understand and reconstruct its formation. The Lambda-CDM model predicts a richly structured phase-space distribution of dar…