Spectroscopic Confirmation of the Existence of Large, Diffuse Galaxies in the Coma Cluster

@article{Dokkum2015SpectroscopicCO,
  title={Spectroscopic Confirmation of the Existence of Large, Diffuse Galaxies in the Coma Cluster},
  author={P. V. Dokkum and A. Romanowsky and R. Abraham and J. Brodie and C. Conroy and M. Geha and A. Merritt and A. Villaume and J. Zhang},
  journal={arXiv: Astrophysics of Galaxies},
  year={2015}
}
We recently identified a population of low surface brightness objects in the field of the z=0.023 Coma cluster, using the Dragonfly Telephoto Array. Here we present Keck spectroscopy of one of the largest of these "ultra-diffuse galaxies" (UDGs), confirming that it is a member of the cluster. The galaxy has prominent absorption features, including the Ca II H+K lines and the G-band, and no detected emission lines. Its radial velocity of cz=6280 +- 120 km/s is within the 1 sigma velocity… Expand
69 Citations
Spectroscopy of Ultra-diffuse Galaxies in the Coma Cluster
  • 34
  • Highly Influenced
  • PDF
The abundance and spatial distribution of ultra-diffuse galaxies in nearby galaxy clusters
  • 86
  • Highly Influenced
  • PDF
Approximately A Thousand Ultra Diffuse Galaxies in the Coma cluster
  • 161
  • Highly Influenced
  • PDF
A High Stellar Velocity Dispersion and ~100 Globular Clusters for the Ultra Diffuse Galaxy Dragonfly 44
  • 131
  • PDF
A population of faint low surface brightness galaxies in the Perseus cluster core
  • 33
  • Highly Influenced
  • PDF
Galaxies at the extremes: Ultra-diffuse galaxies in the Virgo Cluster
  • 122
  • PDF
Origins of ultradiffuse galaxies in the Coma cluster – I. Constraints from velocity phase space
  • 23
  • PDF
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 38 REFERENCES
Forty-Seven Milky Way-Sized, Extremely Diffuse Galaxies in the Coma Cluster
  • 233
  • PDF
Threshing in Action: The Tidal Disruption of a Dwarf Galaxy by the Hydra I Cluster
  • 26
  • PDF
Structure and dynamics in the Coma cluster.
  • 262
  • PDF
A Trio of New Local Group Galaxies with Extreme Properties
  • 103
  • Highly Influential
  • PDF
Ultra-compact Dwarfs in the Coma Cluster
  • 40
  • PDF
Dynamical Evolution of Galaxies in Clusters
  • 139
  • PDF
The Number Density of Low Surface Brightness Galaxies with 23
  • 125
  • PDF
COLOR-MAGNITUDE DIAGRAMS OF RESOLVED STARS IN VIRGO CLUSTER DWARF GALAXIES
  • 45
  • PDF
...
1
2
3
4
...