The Variable Compact Galaxy ZW 0039.5 + 4003
نویسندگان
چکیده
منابع مشابه
Astronomy and Astrophysics Is I Zw 18 a Young Galaxy?
Hubble Space Telescope (HST) colour magnitude diagrams in B, V and R along with long-slit Multiple Mirror Telescope (MMT) spectrophotometric data are used to investigate the evolutionary status of the nearby blue compact dwarf (BCD) galaxy I Zw 18. We find that the distance to I Zw 18 should be as high as 20 Mpc, twice the previously accepted distance, to be consistent with existing observation...
متن کاملCompact groups in the UZC galaxy sample ?
Applying an automatic neighbour search algorithm to the 3D UZC galaxy catalogue (Falco et al. 1999) we have identified 291 compact groups (CGs) with redshifts between 1000 and 10 000 km s −1. The sample is analysed to investigate whether Triplets display kinematical and morphological characteristics similar to higher order CGs (Multiplets). It is found that Triplets constitute low velocity disp...
متن کاملThe Low Co Content of the Extremely Metal Poor Galaxy I Zw 18
We present sensitive molecular line observations of the metal-poor blue compact dwarf I Zw 18 obtained with the IRAM Plateau de Bure interferometer. These data constrain the CO J = 1 → 0 luminosity within our 300 pc (FWHM) beam to be LCO < 1×10 5 K km s pc (ICO < 1 K km s ), an order of magnitude lower than previous limits. Although I Zw 18 is starbursting, it has a CO luminosity similar to or ...
متن کاملLetter to the Editor III Zw 2, the first superluminal jet in a Seyfert galaxy
So far all relativistically boosted jets with superluminal motion have only been detected in typical radio galaxies with early type host galaxies. We have now discovered superluminal motion in the Seyfert I galaxy III Zw 2, classified as a spiral. Superluminal motion was first inferred from the spectral evolution of the source and then confirmed by VLBI observations. The lower limit for the app...
متن کاملAstronomy and Astrophysics Iii Zw 2, the First Superluminal Jet in a Seyfert Galaxy
So far all relativistically boosted jets with superluminal motion have only been detected in typical radio galaxies with early type host galaxies. We have now discovered superluminal motion in the Seyfert I galaxy III Zw 2, classified as a spiral. Superluminal motion was first inferred from the spectral evolution of the source and then confirmed by VLBI observations. The lower limit for the app...
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ژورنال
عنوان ژورنال: Publications of the Astronomical Society of the Pacific
سال: 1970
ISSN: 0004-6280,1538-3873
DOI: 10.1086/128889