ALMA observations of a metal-rich damped Ly α absorber at z = 2.5832: evidence for strong galactic winds in a galaxy group. Issue 2 (11th June 2018)
- Record Type:
- Journal Article
- Title:
- ALMA observations of a metal-rich damped Ly α absorber at z = 2.5832: evidence for strong galactic winds in a galaxy group. Issue 2 (11th June 2018)
- Main Title:
- ALMA observations of a metal-rich damped Ly α absorber at z = 2.5832: evidence for strong galactic winds in a galaxy group
- Authors:
- Fynbo, J P U
Heintz, K E
Neeleman, M
Christensen, L
Dessauges-Zavadsky, M
Kanekar, N
Møller, P
Prochaska, J X
Rhodin, N H P
Zwaan, M - Abstract:
- ABSTRACT: We report on the results of a search for CO(3–2) emission from the galaxy counterpart of a high-metallicity Damped Ly α Absorber (DLA) at $z$ = 2.5832 towards the quasar Q0918+1636. We do not detect CO emission from the previously identified DLA galaxy counterpart. The limit we infer on M gas / M ⋆ is in the low end of the range found for DLA galaxies, but is still consistent with what is found for other star-forming galaxies at similar redshifts. Instead we detect CO(3–2) emission from another intensely star-forming galaxy at an impact parameter of 117 kpc from the line of sight to the quasar and 131 km s −1 redshifted relative to the velocity centroid of the DLA in the quasar spectrum. In the velocity profile of the low- and high-ionization absorption lines of the DLA there is an absorption component consistent with the redshift of this CO-emitting galaxy. It is plausible that this component is physically associated with a strong outflow in the plane of the sky from the CO-emitting galaxy. If true, this would be further evidence, in addition to what is already known from studies of Lyman-break galaxies, that galactic outflows can be traced beyond 100 kpc from star-forming galaxies. The case of this $z$ = 2.583 structure is an illustration of this in a group environment.
- Is Part Of:
- Monthly notices of the Royal Astronomical Society. Volume 479:Issue 2(2018)
- Journal:
- Monthly notices of the Royal Astronomical Society
- Issue:
- Volume 479:Issue 2(2018)
- Issue Display:
- Volume 479, Issue 2 (2018)
- Year:
- 2018
- Volume:
- 479
- Issue:
- 2
- Issue Sort Value:
- 2018-0479-0002-0000
- Page Start:
- 2126
- Page End:
- 2132
- Publication Date:
- 2018-06-11
- Subjects:
- galaxies: ISM -- ISM: molecules -- quasar: absorption lines -- quasars: individual (Q 0918+1636) -- submillimetre: ISM
Astronomy -- Periodicals
Periodicals
520.5 - Journal URLs:
- http://mnras.oxfordjournals.org/ ↗
http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1365-2966 ↗
http://www.blackwell-synergy.com/issuelist.asp?journal=mnr ↗
http://www.blackwell-synergy.com/loi/mnr ↗
http://ukcatalogue.oup.com/ ↗ - DOI:
- 10.1093/mnras/sty1520 ↗
- Languages:
- English
- ISSNs:
- 0035-8711
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 5943.000000
British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 12213.xml