搜索结果: 1-10 共查到“天文学 HII regions”相关记录10条 . 查询时间(0.08 秒)
The four HII regions in the Sgr A East complex: A, B, C, and D, represent evidence of recent massive star formation in the central ten parsecs. Using Paschen-alpha images taken with HST and 8.4 GHz VL...
Abundance determination in HII regions from spectra without the [OII]3727+3729 line
galaxies abundances – ISM abundances – Hii regions
2010/11/11
We suggest an empirical calibration for determination of oxygen and nitrogen abundances and
electron temperature in Hii regions where the [Oii]3727+3729 line (R2) is not available.
The calibration...
On the Nature of the HII Regions in the Extended Ultraviolet Disc of NGC 4625
galaxies abundances galaxies structure galaxies ISM galaxies individual NGC 4625
2010/11/12
Using deep Subaru/FOCAS spectra of 34 Hii regions in both the inner and outer parts of the extended ultraviolet (XUV) disc galaxy NGC 4625 we have measured an abundance gradient out to almost 2.5 time...
Massive Star Formation of the Sgr A East HII Regions Near the Galactic Center
Galaxy Astrophysics (astro-ph.GA)
2011/1/4
A group of four compact HII regions associated with the well-known 50 km/s molecular cloud is the closest site of on-going star formation to the dynamical center of the Galaxy, at a projected distance...
Hii regions in ngc 5055. ii. physical properties。
Wind-Blown Bubbles and HII Regions around Massive Stars
Wind-Blown Bubbles HII Regions Massive Stars
2009/6/30
Wind-Blown Bubbles and HII Regions around Massive Stars。
From Ultracompact to Extended HII Regions：Cloud Gravity and Stellar Motion
HII Regions Cloud Gravity Stellar Motion
2009/6/16
From Ultracompact to Extended HII Regions：Cloud Gravity and Stellar Motion。
On the Ionizing Sources of HII Regions。
Internal Variation of Electron Density in Galactic and Extragalactic HII Regions
Electron Density Extragalactic HII Regions Galactic
2009/6/10
Internal Variation of Electron Density in Galactic and Extragalactic HII Regions。
THE RELATION BETWEEN RADIO FLUX DENSITY AND IONISING ULTRA-VIOLET FLUX FOR HII REGIONS AND SUPERNOVA REMNANTS IN THE LARGE MAGELLANIC CLOUD
Galaxies Magellanic Clouds-ISM HII regions-ISM supernova remnants-radio continuum galaxies-ultraviolet galaxies
2009/3/12
We present a comparison between the Parkes radio surveys (Filipovi
´c et al. 1995) and Vacuum Ultra-Violet (VUV) surveys (Smith et al. 1987)
of the Large Magellanic Clouds (LMC). We have found...