The Open UniversitySkip to content
 

Detection of Hα emission from z>3.5 galaxies with AKARI-FUHYU NIR spectroscopy

Sedgwick, Chris; Serjeant, Stephen; Pearson, Chris; Takagi, Toshinobu; Matsuhara, Hideo; Wada, Takehiko; Lee, Hyung Mok; Im, Myungshin; Jeong, Woong-Seob; Oyabu, Shinki and White, Glenn J. (2012). Detection of Hα emission from z>3.5 galaxies with AKARI-FUHYU NIR spectroscopy. Publications of The Korean Astronomical Society, 27(4) pp. 357–360.

DOI (Digital Object Identifier) Link: https://doi.org/10.5303/PKAS.2012.27.4.357
Google Scholar: Look up in Google Scholar

Abstract

This paper presents Hα emission line detections of four galaxies at z > 3.5 made with AKARI as part of the FUHYU programme. These are the highest redshift Hα detections to date in star-forming galaxies. AKARI's unique near-infrared spectroscopic capability has made these detections possible. For two of these galaxies, this represents the first evidence of their redshifts and confirms their physical association with a companion radio galaxy. The star formation rates (SFRs) estimated from the AKARI's unique near-infrared spectroscopic capability has made these detections possible. For two of these galaxies, this represents the first evidence of their redshifts and confirms their physical association with a companion radio galaxy. The star formation rates (SFRs) estimated from the Hα lines under-predict the SFRs estimated from their far-infrared luminosities by a factor of ~ 2 - 3. We have also detected broad Hα components in the two radio galaxies which indicate the presence of quasars.

Item Type: Journal Item
Copyright Holders: 2012 The Korean Astronomical Society
ISSN: 2287-6936
Keywords: galaxies; evolution; starburst; infrared
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Physical Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Research Group: Space
Related URLs:
Item ID: 36491
Depositing User: G. J. White
Date Deposited: 05 Feb 2013 09:30
Last Modified: 07 Dec 2018 10:13
URI: http://oro.open.ac.uk/id/eprint/36491
Share this page:

Metrics

Altmetrics from Altmetric

Citations from Dimensions

Actions (login may be required)

Policies | Disclaimer

© The Open University   contact the OU