Molecular gas in the halo fuels the growth of a massive cluster galaxy at high redshift

@article{Emonts2016MolecularGI,
  title={Molecular gas in the halo fuels the growth of a massive cluster galaxy at high redshift},
  author={B. Emonts and M. Lehnert and M. Villar-Martin and R. Norris and R. Ekers and G. van Moorsel and H. Dannerbauer and L. Pentericci and G. Miley and J. Allison and E. Sadler and P. Guillard and C. Carilli and M. Mao and H. R{\"o}ttgering and C. De Breuck and N. Seymour and B. Gullberg and D. Ceverino and P. Jagannathan and J. Vernet and B. Indermuehle},
  journal={Science},
  year={2016},
  volume={354},
  pages={1128 - 1130}
}
The massive Spiderweb galaxy is surrounded by molecular gas as it goes through its formation process. A massive galaxy forming from molecular gas The most massive galaxies gather their stars by merging with smaller galaxies and by accreting gas, which is then consumed during star formation. Emonts et al. investigated the Spiderweb Galaxy, a massive galaxy in the process of forming in the early universe, seen now as it was over 10 billion years ago (see the Perspective by Hatch). Radio… Expand
Cold Filamentary Accretion and the Formation of Metal Poor Globular Clusters and Halo Stars
We propose that cold filamentary accretion in massive galaxies at high redshift can lead to the formation of star-forming clumps in the halos of these galaxies without the presence of dark matterExpand
The implications of the surprising existence of a large, massive CO disk in a distant protocluster
It is not yet known if the properties of molecular gas in distant protocluster galaxies are significantly affected by their environment as galaxies are in local clusters. Through a deep, 64 hours ofExpand
Galaxy formation through cosmic recycling
TLDR
Astronomers have detected a giant reservoir of recycled molecular gas that is replenishing the fuel supply of one of the most massive galaxies in the young universe. Expand
Giant galaxy growing from recycled gas : ALMA maps the circumgalactic molecular medium of the Spiderweb in [C I]
The circumgalactic medium (CGM) of the massive Spiderweb Galaxy, a conglomerate of merging proto-cluster galaxies at z = 2.2, forms an enriched interface where feedback and recycling act onExpand
Molecular gas in two companion cluster galaxies at z=1.2
We study the molecular gas properties of two star-forming galaxies separated by 6 kpc in the projected space and belonging to a galaxy cluster selected from the Irac Shallow Cluster Survey, at aExpand
The hidden circumgalactic medium
The cycling of baryons in and out of galaxies is what ultimately drives galaxy formation and evolution. The circumgalactic medium (CGM) represents the interface between the interstellar medium andExpand
Are Cosmological Gas Accretion Streams Multiphase and Turbulent
Simulations of cosmological filamentary accretion reveal flows ("streams") of warm gas, ~$10^4$ K, which are efficient in bringing gas into galaxies. We present a phenomenological scenario where gasExpand
Feedback and Feeding in the Context of Galaxy Evolution with SPICA: Direct Characterisation of Molecular Outflows and Inflows
Abstract A far-infrared observatory such as the SPace Infrared telescope for Cosmology and Astrophysics, with its unprecedented spectroscopic sensitivity, would unveil the role of feedback in galaxyExpand
Molecular gas in radio galaxies in dense Mpc-scale environments at $z=0.4-2.6$
We investigate the role of dense Mpc-scale environment in processing molecular gas in distant Low luminosity radio galaxies (LLRGs) in galaxy (proto-)clusters. We have selected within the COSMOS andExpand
Molecular gas in distant galaxies from ALMA studies
ALMA is now fully operational, and has been observing in early science mode since 2011. The millimetric (mm) and sub-mm domain is ideal to tackle galaxies at high redshift, since the emission peak ofExpand
...
1
2
3
4
...

References

SHOWING 1-10 OF 61 REFERENCES
THE SPIDERWEB GALAXY: A FORMING MASSIVE CLUSTER GALAXY AT z ∼ 2
We present a deep image of the radio galaxy MRC 1138262 taken with the Hubble Space Telescope(HST) at a redshift of . The galaxy is known to have properties of a cD galaxy progenitor and beExpand
The growth and assembly of a massive galaxy at z∼ 2
We study the stellar mass assembly of the Spiderweb galaxy (MRC 1138-262), a massive z = 2.2 radio galaxy in a protocluster and the probable progenitor of a brightest cluster galaxy. NearbyExpand
Early assembly of the most massive galaxies
TLDR
The findings suggest a new picture in which brightest cluster galaxies experience an early period of rapid growth rather than prolonged hierarchical assembly, which conflict with the most recent galaxy formation models based on the largest simulations of dark-matter halo development. Expand
The formation of cluster elliptical galaxies as revealed by extensive star formation
TLDR
Deep submillimetre mapping of seven high-redshift radio galaxies and their environments confirms not only the presence of spatially extended regions of massive star-formation activity in the radio galaxies themselves, but also in companion objects previously undetected at any wavelength. Expand
The formation and assembly of a typical star-forming galaxy at redshift z ≈ 3
Recent studies of galaxies ∼2–3 Gyr after the Big Bang have revealed large, rotating disks, similar to those of galaxies today. The existence of well-ordered rotation in galaxies during this peakExpand
CO(1-0) detection of molecular gas in the massive Spiderweb Galaxy (z = 2)
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. UsingExpand
Molecular Gas at High Redshift
▪ Abstract The Early Universe Molecular Emission Line Galaxies (EMGs) are a population of galaxies with only 36 examples that hold great promise for the study of galaxy formation and evolution atExpand
Regulation of star formation in giant galaxies by precipitation, feedback and conduction
TLDR
Observations showing that the abundance of cold gas in the centres of clusters increases rapidly near the predicted threshold for instability are reported, and this precipitation threshold extends over a large range in cluster radius, cluster mass and cosmic time. Expand
The formation of submillimetre-bright galaxies from gas infall over a billion years
TLDR
It is found that groups of galaxies residing in massive dark matter haloes have increasing rates of star formation that peak at collective rates of about 500–1,000 solar masses per year at redshifts of two to three, by which time the interstellar medium is sufficiently enriched with metals that the region may be observed as a submillimetre-selected system. Expand
A massive reservoir of low-excitation molecular gas at high redshift
TLDR
The maps confirm the presence of hot and dense gas near the nucleus, and reveal an extended reservoir of molecular gas with low excitation that is 10 to 100 times more massive than the gas traced by the higher-excited observations, raising the possibility that significant amounts of low-excitation molecular gas may exist in the environments of high-redshift (z > 3) galaxies. Expand
...
1
2
3
4
5
...