|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'503'724
Articles rated: 2609
24 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
CO(1-0) detection of molecular gas in the massive Spiderweb Galaxy (z=2) | | B.H.C. Emonts
; I. Feain
; H.J.A. Roettgering
; G. Miley
; N. Seymour
; R.P. Norris
; C.L. Carilli
; M. Villar-Martin
; M.Y. Mao
; E.M. Sadler
; R.D. Ekers
; G.A. van Moorsel
; R.J. Ivison
; L. Pentericci
; C.N. Tadhunter
; D.J. Saikia
; | | Date: |
25 Jan 2013 | | Abstract: | The high-redshift radio galaxy MRC 1138-262 (’Spiderweb Galaxy’; z = 2.16),
is one of the most massive systems in the early Universe and surrounded by a
dense ’web’ of proto-cluster galaxies. Using the Australia Telescope Compact
Array, we detected CO(1-0) emission from cold molecular gas -- the raw
ingredient for star formation -- across the Spiderweb Galaxy. We infer a
molecular gas mass of M(H2) = 6x10^10 M(sun) (for M(H2)/L’(CO)=0.8). While the
bulk of the molecular gas coincides with the central radio galaxy, there are
indications that a substantial fraction of this gas is associated with
satellite galaxies or spread across the inter-galactic medium on scales of tens
of kpc. In addition, we tentatively detect CO(1-0) in the star-forming
proto-cluster galaxy HAE 229, 250 kpc to the west. Our observations are
consistent with the fact that the Spiderweb Galaxy is building up its stellar
mass through a massive burst of widespread star formation. At maximum star
formation efficiency, the molecular gas will be able to sustain the current
star formation rate (SFR ~ 1400 M(sun)/yr, as traced by Seymour et al.) for
about 40 Myr. This is similar to the estimated typical lifetime of a major
starburst event in infra-red luminous merger systems. | | Source: | arXiv, 1301.6012 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER