English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
Add to Basket
 Local TagsRelease HistoryDetailsSummary
  No Evidence for Enhanced [O III] 88 μm Emission in a z ̃ 6 Quasar Compared to Its Companion Starbursting Galaxy

Walter, F., Riechers, D., Novak, M., Decarli, R., Ferkinhoff, C., Venemans, B., et al. (2018). No Evidence for Enhanced [O III] 88 μm Emission in a z ̃ 6 Quasar Compared to Its Companion Starbursting Galaxy. The Astrophysical Journal, 869.

Item is

 

show all hide all

Basic

show hide
Item Permalink: https://hdl.handle.net/21.11116/0000-0005-CA64-7 Version Permalink: https://hdl.handle.net/21.11116/0000-0005-CA65-6
Genre: Journal Article

Files

show Files

Locators

show
hide
Locator:
https://ui.adsabs.harvard.edu/abs/2018ApJ...869L..22W (Any fulltext)
Description:
-
OA-Status:

Creators

show
hide
 Creators:
Walter, Fabian1, Author
Riechers, Dominik1, Author
Novak, Mladen1, Author
Decarli, Roberto1, Author
Ferkinhoff, Carl1, Author
Venemans, Bram1, Author
Bañados, Eduardo1, Author
Bertoldi, Frank1, Author
Carilli, Chris1, Author
Fan, Xiaohui1, Author
Farina, Emanuele1, Author
Mazzucchelli, Chiara1, Author
Neeleman, Marcel1, Author
Rix, Hans-Walter1, Author
Strauss, Michael A.1, Author
Uzgil, Bade1, Author
Wang, Ran1, Author
Affiliations:
1Max Planck Institute for Astronomy, Max Planck Society and Cooperation Partners, ou_2421692              

Content

show
hide
Free keywords: galaxies: high-redshift galaxies: ISM quasars: emission lines quasars: general submillimeter: ISM Astrophysics - Astrophysics of Galaxies
 Abstract: We present Atacama Large Millimeter/submillimeter Array band 8 observations of the [O III] 88 μm line and the underlying thermal infrared continuum emission in the z = 6.08 quasar CFHQS J2100-1715 and its dust-obscured starburst companion galaxy (projected distance: ̃60 kpc). Each galaxy hosts dust-obscured star formation at rates >100 M ☉ yr-1, but only the quasar shows evidence for an accreting 109 M ☉ black hole. Therefore we can compare the properties of the interstellar medium in distinct galactic environments in two physically associated objects, ̃1 Gyr after the big bang. Bright [O III] 88 μm emission from ionized gas is detected in both systems; the positions and linewidths are consistent with earlier [C II] measurements, indicating that both lines trace the same gravitational potential on galactic scales. The [O III] 88 μm/far-infrared (FIR) luminosity ratios in both sources fall in the upper range observed in local luminous infrared galaxies of similar dust temperature, although the ratio of the quasar is smaller than in the companion. This suggests that gas ionization by the quasar (expected to lead to strong optical [O III] 5008 Å emission) does not dominantly determine the quasar’s FIR [O III] 88 μm luminosity. Both the inferred number of photons needed for the creation of O++ and the typical line ratios can be accounted for without invoking extreme (top-heavy) stellar initial mass functions in the starbursts of both sources.

Details

show
hide
Language(s):
 Dates: 2018
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: -
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: The Astrophysical Journal
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: 869 Sequence Number: - Start / End Page: - Identifier: -