The Very Extended Ionized Nebula around the Quasar MR 2251−178
نویسندگان
چکیده
منابع مشابه
Extended Ionized Nebula around the Quasar Mr 2251
We report the results of deep H imaging of the ionized gas surrounding the low-redshift (z = 0:0638) quasar MR 2251{178 using the TAURUS Tunable Filter (TTF) on the Anglo-Australian Telescope. Our observations reach a 2-detection level of 5 10 ?18 erg s ?1 cm ?2 arcsec ?2 , more than an order of magnitude deeper than conventional narrowband images previously published on this object. Our data r...
متن کاملThe Very Extended Ionized Nebula around the Quasar MR 2251 - 178
We report the results of deep Hα imaging of the ionized gas surrounding the low-redshift (z = 0.0638) quasar MR 2251–178 using the TAURUS Tunable Filter (TTF) on the Anglo-Australian Telescope. Our observations reach a 2-σ detection level of ∼ 5 × 10−18 erg s−1 cm−2 arcsec−2, more than an order of magnitude deeper than conventional narrowband images previously published on this object. Our data...
متن کاملIonized Nebula around the Quasar MR 2251 - 178
We report the results of deep Hα imaging of the ionized gas surrounding the low-redshift (z = 0.0638) quasar MR 2251–178 using the TAURUS Tunable Filter (TTF) on the Anglo-Australian Telescope. Our observations reach a 2-σ detection level of ∼ 5 × 10 −18 erg s −1 cm −2 arcsec −2 , more than an order of magnitude deeper than conventional narrowband images previously published on this object. Our...
متن کاملVLT observations of the highly ionized nebula around Brey 2 ⋆
We present the first high resolution He λ4686 images of the high excitation nebula around the WR star Brey 2 in the LMC. This nebula presents a striking morphology : a small arc-like feature some 3. 6 pc in radius is particularly prominent in the He λ4686 line. We further discover a previously unknown faint He emission that extends over an area of 22×17 pc 2. An even fainter He emis...
متن کاملray Halo around the Crab Nebula
Two Chandra observations have been used to search for thermal X-ray emission from within and around the Crab Nebula. Dead-time was minimized by excluding the brightest part of the Nebula from the field of view. A dust-scattered halo comprising 5% of the strength of the Crab is clearly detected with surface brightness measured out to a radial distance of 18 ′. Coverage is 100% at 4 ′ , 50% at 12...
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: The Astrophysical Journal
سال: 1999
ISSN: 0004-637X
DOI: 10.1086/312311