搜索结果: 1-15 共查到“星系与宇宙学 compact”相关记录25条 . 查询时间(0.093 秒)
The Evolution of Galaxy Disks in Dense Environments - Lessons from Compact Galaxy Groups
evolution interactions
2014/12/23
Disk galaxies in compact galaxy groups exhibit a remarkable shortfall of neutral hydrogen compared to both isolated spirals and spirals in more loose groups, but the origin of this HI deficiency remai...
Galaxy evolution in Hickson compact groups: the role of ram-pressure stripping and strangulation
evolution interactions
2014/12/23
Galaxies in compact groups tend to be deficient in neutral hydrogen compared to isolated galaxies of similar optical properties. In order to investigate the role played by a hot intragroup medium (IGM...
Aims. Within the framework of the HERM33ES key program, using the high resolution and sensitivity of the Herschel photometric data, we study the compact emission in the Local Group spiral galaxy MR...
DETECTION OF DIFFUSE NEUTRAL INTRAGROUP MEDIUM IN HICKSON COMPACT GROUPS
new Green Bank Telescope gas mass fraction
2014/12/20
We present new Green Bank Telescope (GBT) 21 cm neutral hydrogen (H I) observations of a complete distance-limited sample of 22 Hickson Compact Groups (HCGs) with at least four true members. We detect...
Title: Properties of the Compact HII Region Complex G-0.02-0.07
extinction maps high-resolution
2014/12/20
Abstract: We present new extinction maps and high-resolution Paschen alpha images of G-0.02-0.07, a complex of compact HII regions located adjacent to the M-0.02-0.07 giant molecular cloud, 6 parsecs ...
Ultra deep sub-kpc view of nearby massive compact galaxies
Gemini North telescope Ultra deep sub-kpc view massive compact galaxies
2012/2/21
Using Gemini North telescope ultra deep and high resolution (sub-kpc) K-band adaptive optics imaging of a sample of 4 nearby (z~0.15) massive (~10^{11}M_{sun}) compact (R<1.5 kpc) galaxies, we have ex...
Insights on the Formation, Evolution, and Activity of Massive Galaxies From Ultra-Compact and Disky Galaxies at z=2-3
Insights Formation Evolution Activity Massive Galaxies Disky Galaxies
2011/10/9
We present our results on the structure and activity of massive galaxies at z=1-3 using one of the largest (166 with M_star>=5e10 M_sun) and most diverse samples of massive galaxies derived from the G...
Spectroscopy of Luminous Compact Blue Galaxies in Distant Clusters I. Spectroscopic Data
Spectroscopy of Luminous Compact Blue Galaxies in Distant Clusters I. Spectroscopic Data
2011/10/17
We used the DEIMOS spectrograph on the Keck II Telescope to obtain spectra of galaxies in the fields of five distant, rich galaxy clusters over the redshift range 0.5 < z < 0.9 in a search for luminou...
VLBI-selected sample of Compact Symmetric Object candidates and frequency-dependent position of hotspots
Galaxies: active – Galaxies: jets – Radio continuum: galaxies – Methods:numerical – Magnetohydrodynamics (MHD) – Shock waves
2011/9/27
The Compact Symmetric Objects (CSOs) are small (<1 kiloparsec) and powerful extragalactic radio sources showing emission on both sides of an active galactic nucleus and no signs of strong relativistic...
A mid-IR study of Hickson Compact Groups II. Multi-wavelength analysis of the complete GALEX-Spitzer Sample
Infrared: galaxies —Galaxies: evolution— Galaxies: interactions —Galaxies: star formation
2011/10/10
We present a comprehensive study on the impact of the environment of compact galaxy groups on the evolution of their members using a multi-wavelength analysis, from the UV to the infrared, for a sampl...
The Star Cluster Populations of Compact Galaxy Groups
Cluster Populations Compact Galaxy Groups
2011/10/11
Star clusters are ideal tracers of star formation activity in systems outside the volume that can be studied using individual, resolved stars. These unresolved clusters span orders of magnitude in bri...
Dual-Frequency Observations of 140 Compact, Flat-Spectrum Active Galactic Nuclei for Scintillation-Induced Variability
Flat-Spectrum Active Galactic Nuclei Variability
2011/10/8
The 4.9 GHz Micro-Arcsecond Scintillation-Induced Variability (MASIV) Survey detected a drop in Interstellar Scintillation (ISS) for sources at redshifts z > 2, indicating an apparent increase in angu...
The Idilico Project. Dynamical Evolution of Compact Groups. Supercomputer Simulations
Compact Groups Dynamical Evolution Supercomputer Simulations
2009/7/9
The Idilico Project. Dynamical Evolution of Compact Groups. Supercomputer Simulations。
Photometric and spectroscopic study of Shakhbazian compact galaxy groups ShCG 104, ShCG 120, ShCG 223, and ShCG 245
Photometric spectroscopic compact galaxy
2009/7/9
Photometric and spectroscopic study of Shakhbazian compact galaxy groups ShCG 104, ShCG 120, ShCG 223, and ShCG 245。
3D spectroscopy of Luminous Compact Blue Galaxies
3D spectroscopy Luminous Compact Blue Galaxies
2009/7/1
3D spectroscopy of Luminous Compact Blue Galaxies。