English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  The REQUIEM Survey. I. A search for extended Lyα nebular emission around 31 z > 5.7 quasars

Farina, E. P., Arrigoni-Battaia, F., Costa, T., Walter, F., Hennawi, J. F., Drake, A. B., et al. (2019). The REQUIEM Survey. I. A search for extended Lyα nebular emission around 31 z > 5.7 quasars. The Astrophysical Journal, 887(2): 196. doi:10.3847/1538-4357/ab5847.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/21.11116/0000-0005-C229-2 Version Permalink: http://hdl.handle.net/21.11116/0000-0005-C22A-1
Genre: Journal Article

Files

show Files
hide Files
:
The REQUIEM Survey. I. A Search for Extended Lyα Nebular Emission Around 31 z 5.7 Quasars.pdf (Any fulltext), 7MB
 
File Permalink:
-
Name:
The REQUIEM Survey. I. A Search for Extended Lyα Nebular Emission Around 31 z 5.7 Quasars.pdf
Description:
-
Visibility:
Private
MIME-Type / Checksum:
application/pdf
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show

Creators

show
hide
 Creators:
Farina, Emanuele Paolo1, Author              
Arrigoni-Battaia, Fabrizio2, Author              
Costa, Tiago3, Author              
Walter, Fabian, Author
Hennawi, Joseph F., Author
Drake, Alyssa B., Author
Decarli, Roberto, Author
Gutcke, Thales A.4, Author              
Mazzucchelli, Chiara, Author
Neeleman, Marcel, Author
Georgiev, Iskren, Author
Eilers, Anna-Christina, Author
Davies, Frederick B., Author
Bañados, Eduardo, Author
Fan, Xiaohui, Author
Onoue, Masafusa, Author
Schindler, Jan-Torge, Author
Venemans, Bram P., Author
Wang, Feige, Author
Yang, Jinyi, Author
Rabien, Sebastian, AuthorBusoni, Lorenzo, Author more..
Affiliations:
1Cosmology, MPI for Astrophysics, Max Planck Society, ou_159876              
2Galaxy Formation, Cosmology, MPI for Astrophysics, Max Planck Society, ou_159878              
3Physical Cosmology, MPI for Astrophysics, Max Planck Society, ou_2205644              
4Computational Structure Formation, MPI for Astrophysics, Max Planck Society, ou_2205642              

Content

show
hide
Free keywords: -
 Abstract: The discovery of quasars a few hundred megayears after the Big Bang represents a major challenge to our understanding of black holes as well as galaxy formation and evolution. Quasars' luminosity is produced by extreme gas accretion onto black holes, which have already reached masses of M BH > 109 M by z ~ 6. Simultaneously, their host galaxies form hundreds of stars per year, using up gas in the process. To understand which environments are able to sustain the rapid formation of these extreme sources, we started a Very Large Telescope/Multi-Unit Spectroscopic Explorer (MUSE) effort aimed at characterizing the surroundings of a sample of 5.7 < z < 6.6 quasars, which we have dubbed the Reionization Epoch QUasar InvEstigation with MUSE (REQUIEM) survey. We here present results of our searches for extended Lyα halos around the first 31 targets observed as part of this program. Reaching 5σ surface brightness limits of 0.1–1.1 × 10−17 erg s−1 cm−2 arcsec−2 over a 1 arcsec2 aperture, we were able to unveil the presence of 12 Lyα nebulae, eight of which are newly discovered. The detected nebulae show a variety of emission properties and morphologies with luminosities ranging from 8 × 1042 to 2 × 1044 erg s−1, FWHMs between 300 and 1700 km s−1, sizes <30 pkpc, and redshifts consistent with those of the quasar host galaxies. As the first statistical and homogeneous investigation of the circumgalactic medium of massive galaxies at the end of the reionization epoch, the REQUIEM survey enables the study of the evolution of the cool gas surrounding quasars in the first 3 Gyr of the universe. A comparison with the extended Lyα emission observed around bright (M1450 ≲ −25 mag) quasars at intermediate redshift indicates little variations on the properties of the cool gas from z ~ 6 to z ~ 3, followed by a decline in the average surface brightness down to z ~ 2.

Details

show
hide
Language(s):
 Dates: 2019-12-19
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.3847/1538-4357/ab5847
Other: LOCALID: 3196647
 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: Bristol; Vienna : IOP Publishing; IAEA
Pages: - Volume / Issue: 887 (2) Sequence Number: 196 Start / End Page: - Identifier: ISSN: 0004-637X
CoNE: https://pure.mpg.de/cone/journals/resource/954922828215_3