搜索结果: 1-7 共查到“实测天体物理学 Galaxies”相关记录7条 . 查询时间(0.031 秒)
The First Galaxies: Assembly of Disks and Prospects for Direct Detection
cosmology observations galaxies formation galaxies
2010/11/9
The James Webb Space Telescope (JWST) will enable observations of galaxies at redshifts z & 10 and hence allow to test our current understanding of structure formation at very early times. Previous wo...
Spectroscopic observations of a sample of dwarf spiral galaxies. II- Abundance gradients
dwarf spiral galaxies Abundance gradients
2010/11/10
The oxygen gradient of four dS galaxies has been determined using abundances for several
Hii regions determined with four different methods. The gradient slopes of the three non-barred
galaxies in t...
A Wide Field Survey of Satellite Galaxies around the Spiral Galaxy M106
galaxies；individual (M106) —galaxies；morphology and pho-tometry — galaxies；dwarf galaxies
2010/11/15
We present a wide field survey of satellite galaxies in M106 (NGC 4258)covering a 1.7◦ × 2◦ field around M106 using Canada-France-Hawaii Tele-scope/MegaCam. We find 16 satellite galaxy can...
Metallicities of galaxies in the nearby Lynx-Cancer void
Metallicities of galaxies nearby Lynx-Cancer void
2010/11/16
Does the void environment have a sizable effect on the evolution of dwarf galaxies? If yes, the best probes should be the most fragile least massive dwarfs.We compiled a sample of about one hundred dw...
Colour gradients in normal and compact early-type galaxies at 1
galaxies elliptical and lenticular CD galaxies formation galaxies: evolution
2010/11/15
We have derived colour gradients for a sample of 20 early-type galaxies (ETGs) at 1 < z
spec < 2 selected from the GOODS-South field. The sample includes both nor-mal ETGs (13) having effective radii...
Where are the Fossils of the First Galaxies? II. True Fossils, Ghost Halos, and the Missing Bright Satellites
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2010/12/29
We use a new set of cold dark matter simulations of the local universe to investigate the distribution of fossils of primordial dwarf galaxies within, and around the Milky Way.
HerMES : SPIRE detection of high redshift massive compact galaxies in GOODS-N field
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
2010/12/24
We have analysed the rest-frame far infrared (FIR) properties of a sample of massive (Mstar > 10^11Msun) galaxies at 2ies Origins Deep Survey) North field using the ...