HKU astronomy research team unveils one origin of globular clusters around giant galaxies

A study led by Dr Jeremy Lim and his Research Assistant, Miss Emily Wong, at the Department of Physics of The University of Hong Kong (HKU), utilizing data from the Hubble Space Telescope, has provided surprising answers to the origin of some globular clusters around giant galaxies at the centers of galaxy clusters. Conducted in … Read more HKU astronomy research team unveils one origin of globular clusters around giant galaxies

Massive filaments fuel the growth of galaxies and supermassive black holes

An international group of scientists led by the RIKEN Cluster for Pioneering Research have used observations from the Multi Unit Spectroscopic Explorer (MUSE) at the ESO Very Large Telescope (VLT) in Chile and the Suprime-Cam at the Subaru telescope to make detailed observations of the filaments of gas connecting galaxies in a large, distant proto-cluster … Read more Massive filaments fuel the growth of galaxies and supermassive black holes

The violent history of the big galaxy next door

Astronomers have pieced together the cannibalistic past of our neighbouring large galaxy Andromeda, which has now set its sights on the Milky Way as its next main course. The galactic detective work found that Andromeda has eaten several smaller galaxies, likely within the last few billion years, with left-overs found in large streams of stars. … Read more The violent history of the big galaxy next door

An alternative reading of the size – age mistery in the Large Magellanic Cloud

For more than 30 years scientists have been wondering why all the young star clusters in the Large Magellanic Cloud galaxy have compact cores, while the old ones show cores with both small and large sizes. Using the NASA/ESA Hubble Space Telescope, astronomers have found the key to solve the puzzle: they demonstrated that the … Read more An alternative reading of the size – age mistery in the Large Magellanic Cloud

Space dragons: Researchers observe energy consumption in quasars

Quasars are the Universe’s brightest beacons; shining with magnitudes more luminosity than entire galaxies and the stars they contain. In the center of this light, at the heart of a quasar, researchers think, is an all-consuming black hole. Researchers, for the first time, have observed the accelerated rate at which eight quasars consume interstellar fuel … Read more Space dragons: Researchers observe energy consumption in quasars

A long time ago, galaxies far, far away

Astronomers used the combined power of multiple astronomical observatories around the world and in space to discover a treasure-trove of previously unknown ancient massive galaxies. This is the first multiple discovery of its kind and such an abundance of this type of galaxy defies current models of the universe. These galaxies are also intimately connected … Read more A long time ago, galaxies far, far away

Dutch-Japanese astronomical instrument measures 49 shades of far-infrared

The Dutch-Japanese made DESHIMA instrument has passed its first practical tests when measuring the distances and ages of distant galaxies. The core of the instrument is a chip the size of two euro coins that measures 49 shades of far infrared light. The developers of the spectrometer publish the results of their first measurement campaign … Read more Dutch-Japanese astronomical instrument measures 49 shades of far-infrared

Galaxies are cosmic cauldrons heated by star formation

Star formation within interstellar gas clouds proceeds very rapidly, yet highly inefficiently. Most of the gas is quickly dispersed by stellar radiation, revealing galaxies to be highly dynamic systems, like “cosmic cauldrons”, consisting of building blocks that constantly change their appearance. A team of scientists led by astrophysicist Dr. Diederik Kruijssen from Heidelberg University has … Read more Galaxies are cosmic cauldrons heated by star formation