dc.contributor.author |
Parthasarathy, M |
|
dc.date.accessioned |
2024-05-29T09:34:03Z |
|
dc.date.available |
2024-05-29T09:34:03Z |
|
dc.date.issued |
2024-04 |
|
dc.identifier.citation |
Research Notes of the AAS, Vol. 8, No. 4, 111 |
en_US |
dc.identifier.issn |
2515-5172 |
|
dc.identifier.uri |
http://hdl.handle.net/2248/8469 |
|
dc.description |
Open Access |
en_US |
dc.description |
Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. |
|
dc.description.abstract |
Forty hypervelocity stars (HVS) are detected from a search for HVS in Gaia DR3 data whose G magnitudes are less than 17.0 and radial velocities are more +400 km s‑1. The Gaia DR3 astrophysical parameters and spectra indicate that most of the HVS reported in this study are F, G, and K type metal-poor stars. Eleven stars are at high galactic latitudes. Included in this study are the B components of six nearby visual double stars BD-6 885B, HD 47503B, HD 53229B, HD 95123B, HD 180683B, and HD 202276B which are found to be HVS. The A components of these six visual doubles are less massive late-type stars with normal radial velocities. The source of hypervelocity of the B components is not clear. They may have less luminous and relatively massive degenerate component stars which are not yet detected. Further study of all these HVS is needed. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
American Astronomical Society |
en_US |
dc.relation.uri |
https://iopscience.iop.org/article/10.3847/2515-5172/ad41e5 |
|
dc.rights |
© 2024. The Author(s). |
|
dc.subject |
Hypervelocity stars |
en_US |
dc.title |
Forty Hypervelocity Stars from Gaia DR3 |
en_US |
dc.type |
Other |
en_US |