Volume 621, January 2019
|Number of page(s)||12|
|Section||Interstellar and circumstellar matter|
|Published online||03 January 2019|
Concerning the occurrence of bow shocks around high-mass X-ray binaries★
Department of Theoretical Physics and Astrophysics, Masaryk University,
611 37 Brno,
Accepted: 1 November 2018
Context. We investigate the occurrence of stellar bow shocks around high-mass X-ray binaries (HMXBs) in the Galaxy.
Aims. We seek to conduct a survey of HMXBs in the mid-infrared to search for the presence of bow shocks around these objects.
Methods. Telescopes operating in the mid-infrared, such as the Spitzer Space Telescope or Wide-field Infrared Survey Explorer (WISE), are potent tools for searching for the stellar bow shocks. We used the available archival data from these telescopes to search for bow shock candidates around the confirmed and candidate HMXBs in the Galaxy.
Results. We detected extended mid-infrared structures around several surveyed confirmed and candidate HMXBs. Two of these structures, associated with Vela X-1 and 4U 1907+09, are genuine bow shocks that have been studied previously. However, there are no new unambiguous bow shocks among the rest of the objects. The paucity of bow shocks around HMXBs suggests that the majority of these systems still reside within hot, low-density bubbles around their parent star clusters or associations. This also implies that the dynamical ejection of massive binaries is apparently less efficient than the ejections caused by the supernova explosions inside a binary.
Key words: proper motions / binaries: general / stars: early-type / stars: kinematics and dynamics / infrared: ISM
© ESO 2019
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.