H I bubbles surrounding southern optical ring nebulae: Anon (WR 23) and RCW 52
نویسندگان
چکیده
منابع مشابه
An H i interstellar bubble surrounding WR 85 and RCW 118
We analyze the distribution of the interstellar matter in the environs of the Wolf-Rayet star LSS 3982 (= WR 85, WN6+OB?) linked to the optical ring nebula RCW 118. Our study is based on neutral hydrogen 21cm-line data belonging to the Southern Galactic Plane Survey (SGPS). The analysis of the Hi data allowed the identification of a neutral hydrogen in-terstellar bubble related to WR 85 and the...
متن کاملWR bubbles and He emission ⋆
We present the very first high quality images of the He λ4686 emission in three high excitation nebulae of the Magellanic Clouds. A fourth high excitation nebula , situated around the WR star BAT99-2 , was analysed in a previous letter. Using VLT FORS data , we investigate the morphology of the ring nebulae around the early-type WN stars BAT99-49 & AB7. We derive the total He fluxes for e...
متن کاملStellar wind bubbles around WR and [WR] stars
We study the dynamics of stellar wind bubbles around hydrogen-deficient stars using numerical simulations with timeand ion dependent cooling. We consider two types of hydrogen-deficient stars, massive WR stars, producing Ring Nebulae, and low mass [WR] stars, producing Planetary Nebulae. We show that for the Planetary Nebulae, the different cooling properties of the hydrogen-deficient wind lead...
متن کاملOptical Coordinates of Southern Planetary Nebulae
A homogeneous set of new measurements of nearly all (995 out of 1007) objects from the Strasbourg-ESO Catalogue of Galactic Planetary Nebulae or in the first supplement of this catalogue in the area covered by the DENIS survey (δ < +2) is given here. A list of 24 new and 27 wrong crossidentifications with sources in the IRAS PSC catalogue and some confusion in the literature is listed as well.
متن کاملWR bubbles and He II emission
We present the very first high quality images of the He λ4686 emission in three high excitation nebulae of the Magellanic Clouds. A fourth high excitation nebula, situated around the WR star BAT99-2, was analysed in a previous letter. Using VLT FORS data, we investigate the morphology of the ring nebulae around the early-type WN stars BAT99-49 & AB7. We derive the total He fluxes for each...
متن کاملذخیره 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: Astronomy & Astrophysics
سال: 2005
ISSN: 0004-6361,1432-0746
DOI: 10.1051/0004-6361:20042344