Stellar Content of the Giant HII Region NGC 604
نویسندگان
چکیده
منابع مشابه
On the structure of giant HII regions and HII galaxies
We review the structural properties of giant extragalactic HII regions and HII galaxies based on two dimensional hydrodynamic calculations, and propose an evolutionary sequence that accounts for their observed detailed structure. The model assumes a massive and young stellar cluster surrounded by a large collection of clouds. These are thus exposed to the most important star-formation feedback ...
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در این پایان نامه تاثیر دو نوع تست جزیی نگر و کلی نگر بر به یادسپاری محتوا ارزیابی شده که نتایج نشان دهندهکارایی تستهای کلی نگر بیشتر از سایر آزمونها است
15 صفحه اولOn the Ongoing Multiple Blowout in Ngc 604
Several facts regarding the structure of NGC 604 are examined here. The three main cavities, produced by the mechanical energy from massive stars which in NGC 604 are spread over a volume of 10 pc, are shown here to be undergoing blowout into the halo of M33. High resolution long slit spectroscopy is used to track the impact from massive stars while HST archive data is used to display the asymm...
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We present observations and models of the behaviour of the HI and HeI lines between 1.6 and 2.2μm in a small sample of compact HII regions. As in our previous papers on planetary nebulae, we find that the ‘pure’ 1.7007μm 4D–3P and 2.16475μm 7G–4F HeI recombination lines behave approximately as expected as the effective temperature of the central exciting star(s) increases. However, the 2.058μm ...
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ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 1991
ISSN: 0074-1809
DOI: 10.1017/s0074180900045587