Clustering of Emission-Line Stars in the W 5 E H ii Region

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The Weak Emission Line Stars

In this paper, we study the evolution of the weak emission line central stars of planetary nebula (WELS), which are similar to the H-deficient Wolf-Rayet central stars except for systematically weaker emission lines. Our attempts at finding an evolutionary sequence for the WELS similar to what was established for Wolf-Rayet central stars, were unsuccessful. No correlation was found between any ...

متن کامل

the impact of e-readiness on ec success in public sector in iran the impact of e-readiness on ec success in public sector in iran

acknowledge the importance of e-commerce to their countries and to survival of their businesses and in creating and encouraging an atmosphere for the wide adoption and success of e-commerce in the long term. the investment for implementing e-commerce in the public sector is one of the areas which is focused in government‘s action plan for cross-disciplinary it development and e-readiness in go...

Modeling the emission line sequence of H ii galaxies

Using a sample of unprecedented size (about 400 objects) of H ii galaxies in which the oxygen abundances have been obtained using the temperature derived from the [O iii] λ4363/5007 line ratio, we confirm that the H ii galaxies form a very narrow sequence in many diagrams relating line ratios and Hβ equivalent width. We divide our sample in three metallicity bins, each of which is compared with...

متن کامل

About the Emission Line Sequence of H Ii Galaxies

We consider 400 H ii galaxies in which the oxygen abundances were obtained by electron temperature based methods. We split the sample in three metallicity bins. In each bin, a narrow sequence is found not only in pure emission line ratio diagrams but also in terms of Hβ equivalent width, indicating the existence of an evolutionary sequence. Our diagrams show unambiguously the existence of an ev...

متن کامل

ذخیره 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: Publications of the Astronomical Society of Japan

سال: 2008

ISSN: 0004-6264,2053-051X

DOI: 10.1093/pasj/60.4.739