Globular clusters in the inner Galaxy classified from dynamical orbital criteria
نویسندگان
چکیده
منابع مشابه
Galaxy Deconstruction: Clues from Globular Clusters
The present-day globular cluster populations of galaxies reflect the cumulative effects of billions of years of galaxy evolution via such processes as mergers, tidal stripping, accretion, and in some cases the partial or even complete destruction of other galaxies. If large galaxies have grown by consuming their smaller neighbors, or by accreting material stripped from other galaxies, then thei...
متن کاملGlobular Clusters in nearby Galaxy Clusters
The discovery of a large population of intra-cluster star clusters in the central region of the Hydra I and Centaurus galaxy clusters is presented. Based on deep VLT photometry (V, I), many star clusters have been identified not only around the early-type galaxies, but also in the intra-cluster field, as far as 250 kpc from the galaxy centres. These intra-cluster globulars are predominantly blu...
متن کاملGlobular Clusters and Galaxy Formation
We first discuss recent progress in using the Milky Way globular cluster (GC) system as a ‘test-bed’ for properties derived from integrated spectra and stellar population models. Standard techniques may give rise to spuriously high alpha-element ratios at low metallicities. We then discuss evidence for early epoch (z ≥ 2) formation for most GCs in galaxies today. Recent accretions of GCs (and t...
متن کاملFormation of globular clusters in galaxy mergers
Our numerical simulations first demonstrate that the pressure of ISM in a major merger becomes so high (> 105 kB K cm−3) that GMCs in the merger can collapse to form globular clusters (GCs) within a few Myr. The star formation efficiency within a GMC in galaxy mergers can rise up from a few percent to ∼ 80 percent, depending on the shapes and the temperature of the GMC. This implosive GC format...
متن کاملFormation of Globular Clusters in Galaxy Mergers
We present a high-resolution simulation of globular cluster formation in a galaxy merger. For the first time in such a simulation, individual star clusters are directly identified and followed on their orbits. We quantitatively compare star formation in the merger to that in the unperturbed galaxies. The merging galaxies show a strong starburst, in sharp contrast to their isolated progenitors. ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2019
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/stz3162