Deep Hubble Space Telescope Imaging on the Extended Lyα Emission of a QSO at z = 2.19 with a Damped Lyman Alpha System as a Natural Coronagraph
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Author
Ding, Jiani
Cai, Zheng
Prochaska, J. Xavier

Finley, H.
Fan, Xiaohui
Zheng, Zheng

Fathivavsari, H.
Petitjean, P.
Affiliation
Univ Arizona, Steward ObservIssue Date
2020-01-20
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IOP PUBLISHING LTDCitation
Jiani Ding et al 2020 ApJL 889 L12Journal
ASTROPHYSICAL JOURNAL LETTERSRights
Copyright © 2020. The American Astronomical Society. All rights reserved.Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.Abstract
Recent observations suggest that proximate damped Ly alpha (PDLA) systems can be used to study the host galaxies of quasi-stellar objects (QSOs), because the PDLAs can block the bright point-spread function from central QSOs. Using six orbits of narrowband imaging with Hubble Space Telescope (HST)/WFC3, we present the first high-resolution narrowband image of the Ly alpha emission in the PDLA trough of the QSO SDSS J115432.67-021537.9. We detect one major component and one minor component in the narrowband imaging. Combining the Magellan/MagE spectra, we measure that the Ly alpha flux Ly alpha emitters at alpha emission. This new method sheds light on the study of the kinematic structure and the spatial distribution of the extended Ly alpha emitting regions around the QSO host.ISSN
2041-8205Version
Final published versionae974a485f413a2113503eed53cd6c53
10.3847/2041-8213/ab6169