Show simple item record

dc.contributor.author
Decarli, Roberto
dc.contributor.author
Arrigoni-Battaia, Fabrizio
dc.contributor.author
Hennawi, Joseph F.
dc.contributor.author
Walter, Fabian
dc.contributor.author
Prochaska, Jason X.
dc.contributor.author
Cantalupo, Sebastiano
dc.date.accessioned
2021-01-08T08:07:47Z
dc.date.available
2021-01-08T03:48:01Z
dc.date.available
2021-01-08T08:07:47Z
dc.date.issued
2021-01
dc.identifier.issn
0004-6361
dc.identifier.issn
1432-0746
dc.identifier.other
10.1051/0004-6361/202039814
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/460402
dc.description.abstract
Enormous Lyα nebulae, extending over 300−500 kpc around quasars, represent the pinnacle of galaxy and cluster formation. Here we present IRAM Plateau de Bure Interferometer observations of the enormous Lyα nebulae “Slug” (z = 2.282) and “Jackpot” (z = 2.041). Our data reveal bright, synchrotron emission associated with the two radio-loud active galactic nuclei embedded in the targeted nebulae as well as molecular gas, as traced via the CO(3−2) line, in three galaxies (two sources in Slug, and one in Jackpot). All of the CO emission is associated with galaxies detected in their rest-frame UV stellar emission. The total mass in molecular gas of these three galaxies [∼(3 − 5) × 1010 M⊙] is comparable with the total ionized gas mass responsible for the diffuse nebular emission. Our observations place limits on the molecular gas emission in the nebulae: the molecular gas surface density is ΣH2 <  12 − 25 M⊙ pc−2 for the Slug nebula and ΣH2 <  34 − 68 M⊙ pc−2 for the Jackpot nebula. These are consistent with the expected molecular gas surface densities, as predicted via photoionization models of the rest-frame UV line emission in the nebulae, and via Lyα absorption in the Jackpot nebula. Compared to other radio-loud quasars at z >  1 and high-redshift radio-loud galaxies, we do not find any strong trends relating the molecular gas reservoirs, the radio power, and the Lyα luminosities of these systems. The significant step in sensitivity required to achieve a detection of the molecular gas from the nebulae, if present, will require a substantial time investment with JVLA, NOEMA, or ALMA. © 2020 ESO
en_US
dc.language.iso
en
en_US
dc.publisher
EDP Sciences
en_US
dc.subject
galaxies: high-redshift
en_US
dc.subject
galaxies: evolution
en_US
dc.subject
galaxies: ISM
en_US
dc.subject
galaxies: star formation
en_US
dc.title
A search for dust and molecular gas in enormous Lyα nebulae at z ≈ 2
en_US
dc.type
Journal Article
dc.date.published
2020-12-23
ethz.journal.title
Astronomy & Astrophysics
ethz.journal.volume
645
en_US
ethz.journal.abbreviated
Astron. Astrophys.
ethz.pages.start
L3
en_US
ethz.size
6 p.
en_US
ethz.grant
From Cosmic Web to Galaxies: Illuminating the Gaseous Link between the Dark and the Bright Universe
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Les Ulis
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02010 - Dep. Physik / Dep. of Physics::02532 - Institut für Teilchen- und Astrophysik / Inst. Particle Physics and Astrophysics::09592 - Cantalupo, Sebastiano (ehemalig) / Cantalupo, Sebastiano (former)
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02010 - Dep. Physik / Dep. of Physics::02532 - Institut für Teilchen- und Astrophysik / Inst. Particle Physics and Astrophysics::09592 - Cantalupo, Sebastiano (ehemalig) / Cantalupo, Sebastiano (former)
ethz.grant.agreementno
190092
ethz.grant.fundername
SNF
ethz.grant.funderDoi
10.13039/501100001711
ethz.grant.program
SNF-Förderungsprofessuren: Fortsetzungsgesuche
ethz.date.deposited
2021-01-08T03:48:08Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2021-01-08T08:07:55Z
ethz.rosetta.lastUpdated
2022-03-29T04:43:51Z
ethz.rosetta.versionExported
true
ethz.COinS
ctx_ver=Z39.88-2004&amp;rft_val_fmt=info:ofi/fmt:kev:mtx:journal&amp;rft.atitle=A%20search%20for%20dust%20and%20molecular%20gas%20in%20enormous%20Ly%CE%B1%20nebulae%20at%20z%20%E2%89%88%202&amp;rft.jtitle=Astronomy%20&%20Astrophysics&amp;rft.date=2021-01&amp;rft.volume=645&amp;rft.spage=L3&amp;rft.issn=0004-6361&amp;1432-0746&amp;rft.au=Decarli,%20Roberto&amp;Arrigoni-Battaia,%20Fabrizio&amp;Hennawi,%20Joseph%20F.&amp;Walter,%20Fabian&amp;Prochaska,%20Jason%20X.&amp;rft.genre=article&amp;rft_id=info:doi/10.1051/0004-6361/202039814&amp;
 Search print copy at ETH Library

Files in this item

FilesSizeFormatOpen in viewer

There are no files associated with this item.

Publication type

Show simple item record