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IMAGE RELEASE:Shocking Results of Galaxy-Cluster Collisions（图）
Shocking Results Galaxy-Cluster Collisions
2017/11/23
A giant collision of several galaxy clusters, each containing hundreds of galaxies, has produced this spectacular panorama of shocks and energy. The collisions generated shock waves that set off a cel...
With the help of a gigantic cosmic lens, astronomers have measured the magnetic field of a galaxy nearly five billion light-years away. The achievement is giving them important new clues about a probl...
VLA Gives New Insight Into Galaxy Cluster’s Spectacular “Mini-Halo”
VLA Galaxy Cluster’s Spectacular Mini-Halo
2017/7/21
Astronomers using the National Science Foundation’s Karl G. Jansky Very Large Array (VLA) have discovered new details that are helping them decipher the mystery of how giant radio-emitting structures ...
UMass Amherst Astronomers Find Unexpected,Dust-obscured Star Formation in Normal Distant Galaxy
UMass Amherst Astronomers Dust-obscured Star Formation Normal Distant Galaxy
2017/3/30
Pushing the limits of the largest single-aperture millimeter telescope in the world, and coupling it with gravitational lensing, University of Massachusetts Amherst astronomer Alexandra Pope and colle...
Embryonic cluster galaxy immersed in giant cloud of cold gas
Embryonic cluster galaxy immersed giant cloud of cold gas
2016/12/13
Astronomers studying a cluster of still-forming protogalaxies seen as they were more than 10 billion years ago have found that a giant galaxy in the center of the cluster is forming from a surprisingl...
3-D Galaxy-mapping Project Enters Construction Phase
3-D Galaxy-mapping Project Construction Phase
2016/8/11
A 3-D sky-mapping project that will measure the light of millions of galaxies has received formal approval from the U.S. Department of Energy to move forward with construction. Installation of the pro...
UCLA astronomers make first accurate measurement of oxygen in distant galaxy
UCLA astronomers first accurate measurement of oxygen galaxy
2016/8/11
UCLA astronomers have made the first accurate measurement of the abundance of oxygen in a distant galaxy. Oxygen, the third-most abundant chemical element in the universe, is created inside stars and ...
In Galaxy Clustering,Mass May Not Be the Only Thing That Matters
Galaxy Clustering Mass Only Thing That Matters
2016/2/22
An international team of researchers, including Carnegie Mellon University’s Rachel Mandelbaum, has shown that the relationship between galaxy clusters and their surrounding dark matter halo is more c...
Extreme Turbulence Roiling 'Most Luminous Galaxy' in the Universe
Extreme Turbulence Most Luminous Galaxy the Universe
2016/2/22
The most luminous galaxy in the Universe – a so-called obscured quasar 12.4 billion light-years away – is so violently turbulent that it may eventually jettison its entire supply of star-forming gas, ...
Massive Galaxy Cluster Found to Be Bursting With New Stars
Massive Galaxy Cluster New Stars
2015/9/18
An international team of astronomers has discovered a distant massive galaxy cluster with a core bursting with new stars.The discovery, made with the help ofW. M. Keck Observatory’sMOSFIRE instru...
CWRU astronomers find new details in first known spiral galaxy
CWRU astronomers first known spiral galaxy
2015/3/4
Case Western Reserve University astronomers peered deep into space to discover new features of a galaxy that’s been sketched and photographed for 170 years.
The researchers were able to see faint plu...
A New Collisional Ring Galaxy at z = 0.111: Auriga's Wheel
Collisional Ring Galaxy Auriga Wheel
2011/10/12
We report the serendipitous discovery of a collision ring galaxy, identified as 2MASX J06470249+4554022, which we have dubbed 'Auriga's Wheel', found in a SUPRIME-CAM frame as part of a larger Milky W...
We report the discovery of a serious bias in galaxy photometry reported in the 2MASS Extended Source Catalog (Jarrett et al. 2000). Due to an undetermined flaw in the 2MASS surface photometry routines...
We investigate the origin of the color-magnitude relation (CMR) observed in cluster galaxies by using a combination of a cosmological N-body simulation of a cluster of galaxies and a semi-analytic mod...
Spectra of globular clusters in the Sombrero galaxy: evidence for spectroscopic metallicity bimodality
globular clusters: general galaxies: individual: Sombrero (M104: NGC4594) galaxies: star clusters
2011/9/28
We present a large sample of over 200 integrated-light spectra of confirmed globular clusters (GCs) associated with the Sombrero (M104) galaxy taken with the DEIMOS instrument on the Keck telescope. A...