Published December 2020
| Submitted + Published
Journal Article
Open
Distance and Tangential Velocity of the Main Ionizing Star in the North America/Pelican Nebulae with Gaia EDR3
- Creators
-
Kuhn, Michael A.
- Hillenbrand, Lynne A.
Abstract
The Bajamar Star is an early O star that ionizes the North America/Pelican Nebulae. In projection, it is near the geometric center of the H II region, but appears to lie outside any of the main stellar subgroups. Furthermore, in Gaia DR2, there were slight discrepancies between this star and the rest of the system in parallax (2σ larger) and relative tangential velocity (~6 km s⁻¹). Using Gaia EDR3, we find that the parallax discrepancy has disappeared, but the velocity difference remains. These results are consistent with the star having escaped from a subgroup.
Additional Information
© 2020 The American Astronomical Society. Published 2020 December 10. This work is based on data from ESA's Gaia mission (Gaia Collaboration et al. 2016), processed by the Data Processing and Analysis Consortium, funded by national institutions, particularly those participating in the Gaia Multilateral Agreement.Attached Files
Published - Distance_and_Tangential_Velocity_of_the_Main_Ionizing_Star_in_the_North_Amer.pdf
Submitted - 2012.05074.pdf
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2012.05074.pdf
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Additional details
- Eprint ID
- 107076
- Resolver ID
- CaltechAUTHORS:20201214-153353750
- Gaia Multilateral Agreement
- Created
-
2020-12-15Created from EPrint's datestamp field
- Updated
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2021-11-16Created from EPrint's last_modified field
- Caltech groups
- Astronomy Department