Study of the Wolf-Rayet population in NGC 604 using bi-dimensional spectroscopy
نویسندگان
چکیده
منابع مشابه
How extreme are the Wolf - Rayet Clusters in NGC 3125 ? ⋆
We reinvestigate the massive stellar content of the irregular dwarf galaxy NGC3125 (Tol 3) using VLT/FORS1 imaging and spectroscopy, plus archival VLT/ISAAC, HST/FOC and HST/STIS datasets. FORS1 narrow-band imaging confirms that the NGC3125 A and B knots represent the primary sites of Wolf-Rayet (WR) stars, whilst HST imaging reveals that both regions host two clusters. Both clusters within reg...
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We present Hubble Space Telescope WFPC2 images of a portion of the bright northeast rim of NGC 6888, the nebular shell physically associated with the Wolf-Rayet star HD 192163. The exposures are taken in the light of Hα λ6563, [O III] λ5007, and [S II] λλ6717, 6731. The images are used to constrain models of the ionization structure of nebular features. From these models we infer physical condi...
متن کاملA Very Large Telescope imaging and spectroscopic survey of the Wolf?Rayet population in NGC?7793?
We present a Very Large Telescope/Focal Reducer and Low Dispersion Spectrograph #1 (VLT/FORS1) imaging and spectroscopic survey of the Wolf–Rayet (WR) population in the Sculptor group spiral galaxy NGC 7793. We identify 74 emission-line candidates from archival narrow-band imaging, from which 39 were observed with the Multi Object Spectroscopy mode of FORS1. 85 per cent of these sources display...
متن کاملA large Wolf - Rayet population in NGC 300 uncovered by VLT - FORS 2 ⋆
We have detected 58 Wolf-Rayet candidates in the central region of the nearby spiral galaxy NGC 300, based on deep VLT-FORS2 narrow-band imaging. Our survey is close to complete except for heavily reddened WR stars. Of the objects in our list, 16 stars were already spectroscopically confirmed as WR stars by Schild & Testor and Breysacher et al., to which 4 stars are added using low resolution F...
متن کاملISO observations of the Wolf - Rayet galaxy NGC 7714 and its companion NGC 7715
The interacting system Arp 284 consisting of the Wolf-Rayet galaxy NGC 7714 and its irregular companion NGC 7715 was observed using the Infrared Space Observatory1. Deconvolved ISOCAM maps of the galaxies using the 14.3 μm, 7.7 μm and 15 μm LW3, LW6 and LW9 filters, along with ISOPHOT spectrometry of the nuclear region of NGC 7714 were obtained and are presented. Strong ISOCAM emission was dete...
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ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 1999
ISSN: 0074-1809
DOI: 10.1017/s0074180900206128