Le 20 mars 2018
De 12h45 à 13h45

Bernd Vollmer (ObAS)  Thick turbulent gas disks with magnetocentrifugal winds in active galactic...

Du 18 juin 2018 au 22 juin 2018
Strasbourg, France

"The co-evolution of galaxies and the intergalactic medium during the first billion years of the...

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Astro lunch 13.03.2018

Le 13 mars 2018
De 12h45 à 13h45

Khyati Malhan (ObAS) 

STREAMFINDER: Detection of a new stellar stream in the Pan-STARRS survey

STREAMFINDER is a new algorithm that we have built to detect stellar streams in an automated and systematic way in astrophysical datasets that possess any combination of positional and kinematic information. I will establish that the algorithm is capable of detecting ultra-faint and distant halo stream structures in the Gaia-like dataset. Further, I will present the workings of the STREAMFINDER with real proper motion data from the Pan-STARRS1 survey by demonstrating an "improved detection" of the so called "GD-1" stream structure. Moreover, we also discovered a new stream structure in the neighbouring region of GD-1. This new structure will be discussed in the talk as well.

Search & Find
févr. 23 2018

 The nature of the massive Be star with strong and hard X-ray emission, gamma  Cassiopae, remains...

mars 12 2018

L'observatoire astronomique de Strasbourg a participé à l'événement Ose la Recherche organisé par...

févr. 5 2018

Une image multi-couleur extrêmement profonde du Télescope Canada-France-Hawaii (CFHT) apporte une...