SUPER VI. A giant molecular halo around a z similar to 2 quasar

↓ Direkt till sidans innehåll
↓ Direkt till sidans sekundära innehåll (sidomenyn)

Search: onr:"swepub:oai:research.chalmers.se:27aa7c3a-b82c-46e6-bd2a-9ced0172873f" > SUPER VI. A giant m...

1 of 1
Previous record
Next record
To hitlist

SUPER VI. A giant molecular halo around a z similar to 2 quasar

Cicone, C. (author): Universitetet i Oslo,University of Oslo

Mainieri, V (author): European Southern Observatory Santiago

Circosta, C. (author): University College London (UCL)

Kakkad, D. (author): European Southern Observatory Santiago,University Of Oxford

Vietri, G. (author): Istituto nazionale di astrofisica (INAF)

Perna, M. (author)

Bischetti, M. (author): Istituto nazionale di astrofisica (INAF)

Carniani, S. (author): Scuola Normale Superiore di Pisa

Cresci, G. (author): Istituto nazionale di astrofisica (INAF)

Harrison, C. (author): University of Newcastle upon Tyne

Mannucci, F. (author): Istituto nazionale di astrofisica (INAF)

Marconi, A. (author): Istituto nazionale di astrofisica (INAF),Universita degli Studi di Firenze,University of Florence

Piconcelli, E. (author): Istituto nazionale di astrofisica (INAF)

Puglisi, A. (author): Durham University

Scholtz, Jan, 1992 (author): Chalmers tekniska högskola,Chalmers University of Technology

Vignali, C. (author): Istituto nazionale di astrofisica (INAF),Universita di Bologna,University of Bologna

Zamorani, G. (author): Istituto nazionale di astrofisica (INAF)

Zappacosta, L. (author): Istituto nazionale di astrofisica (INAF)

Battaia, F. Arrigoni (author): Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)

show less...

(creator_code:org_t)

2021-10-18
2021
English.
In: Astronomy and Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 654

Related links:: https://research.cha... (primary) (free); show more...; https://www.aanda.or...; https://research.cha...; https://doi.org/10.1...; show less...

Journal article (peer-reviewed)

Abstract Subject headings

We present the discovery of copious molecular gas in the halo of cid_346, a z=2.2 quasar studied as part of the SINFONI survey for Unveiling the Physics and Effect of Radiative feedback (SUPER). New Atacama Compact Array (ACA) CO(3-2) observations detect a much higher flux (by a factor of 14 +/- 5) than measured on kiloparsec scales (r less than or similar to 8 kpc) using previous snapshot Atacama Large Millimeter/submillimeter Array data. Such additional CO(3-2) emission traces a structure that extends out to r similar to 200 kpc in projected size, as inferred through direct imaging and confirmed by an analysis of the uv visibilities. This is the most extended molecular circumgalactic medium (CGM) reservoir that has ever been mapped. It shows complex kinematics, with an overall broad line profile (FWHM=1000 km s(-1)) that is skewed towards redshifted velocities up to at least v similar to 1000 km s(-1). Using the optically thin assumption, we estimate a strict lower limit for the total molecular CGM mass observed by ACA of M-mol(CGM) > 10(10) M-circle dot. There is however room for up to M-mol(CGM) similar to 1.7 x 10(12) M-circle dot, once optically thick CO emission with alpha(CO) = 3.6 M-circle dot (K km s(-1) pc(2))(-1) and LCO(3- 2)'/LCO(1-0)' = 0.5 are assumed. Since cid_346 hosts quasar-driven ionised outflows and since there is no evidence of merging companions or an overdensity, we suggest that outflows may have played a crucial rule in seeding metal-enriched, dense gas on halo scales. However, the origin of such an extended molecular CGM remains unclear.

Subject headings

NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geofysik (hsv//swe)
NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geophysics (hsv//eng)

Keyword

galaxies: halos
galaxies: high-redshift
intergalactic medium
galaxies: active
submillimeter: galaxies
quasars: individual: cid_346

Publication and Content Type

art (subject category)
ref (subject category)

Find in a library

Astronomy and Astrophysics (Search for host publication in LIBRIS)

To the university's database

1 of 1
Previous record
Next record
To hitlist

Find more in SwePub

About the subject

NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Astronomy Astrop ...

NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Atom and Molecul ...

NATURAL SCIENCES: NATURAL SCIENCES; and Earth and Relate ...; and Geophysics

Articles in the publication: Astronomy and As ...

By the university: Chalmers University of Technology

Search outside SwePub

Extend your search to:: Google; Google Book Search; Google Scholar

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

LIBRIS.kb.se