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Stationary Resistive MHD Solutions Near an Isolated Three-Dimensional Magnetic Null
Kuljeet Singh Saddal, Dieter H. Nickeler, Rodrigo Meneses Pacheco +1
Magnetic null points define the magnetic field topology in stellar coronae, planetary magnetospheres, and astrospheres, and are commonly associated with magnetic reconnection. We i…
The existence of null points of flow and magnetic fields as prerequisites for the presence of astropauses and their co-location
Dieter H. Nickeler, Kuljeet S. Saddal, Rodrigo Meneses Pacheco +1
Astropauses can be defined via magnetic or fluid separatrices. For the boundary layer between the stellar wind and the local interstellar medium, two separatrices can occur, the ma…
An Halpha survey of infrared bow-shocks around OB-type stars
Kuljeet Singh Saddal, Michaela Kraus, Dieter H. Nickeler +3
Bow shocks (BSs) around massive stars are commonly identified in mid-infrared (MIR) surveys. In contrast, systematic optical investigations of these structures remain scarce with o…