Lyα Halos around [O iii]-selected Galaxies in HETDEX
Abstract
We present extended Lyα emission out to 800 kpc of 1034 [O iii]-selected galaxies at redshifts 1.9 z α emission of the [O iii]-selected galaxies agrees well with that of 968 bright Lyα-emitting galaxies (LAEs) at r > 40 kpc from the galaxy centers. The surface brightness in the inner parts (r iii]-selected galaxies, however, is 10 times fainter than that of the LAEs. Our results are consistent with the notion that photons dominating the outer regions of the Lyα halos are not produced in the central galaxies but originate outside of them.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Aug 01, 2022
- Source ID
- 10.3847/2041-8213/ac82e5
Entities
People
- Caryl Gronwall
- Chenxu Liu
- Daniel J. Farrow
- Donald P. Schneider
- Eiichiro Komatsu
- Erin Mentuch Cooper
- Gary J. Hill
- Gregory R. Zeimann
- Karl Gebhardt
- Maja Lujan Niemeyer
- Max Gronke
- Maximilian Fabricius
- Robin Bruce Ciardullo
- Sarah Tuttle
- Steven L. Finkelstein
- William P. Bowman
Organizations
- German Research Foundation
- National Science Foundation
- United States Air Force