Zobrazeno 1 - 10
of 266
pro vyhledávání: '"A. Pramskij"'
Publikováno v:
Astron.Astrophys.468:121-128,2007
We present results of NTT spectroscopy of the one known planetary nebula (PN) in the dwarf spheroidal galaxy Fornax, a gas-deficient Local Group galaxy that stopped its star formation activity a few hundred million years ago. We detected the [OIII] 4
Externí odkaz:
http://arxiv.org/abs/astro-ph/0703551
Autor:
Pustilnik, S. A., Engels, D., Kniazev, A. Y., Pramskij, A. G., Ugryumov, A. V., Hagen, H. -J.
We present the SAO 6m telescope spectroscopy of a blue compact galaxy (BCG) HS 2134+0400 discovered in frame of the dedicated Hamburg/SAO survey for Low Metallicity BCGs (HSS-LM). Its very low abundance of oxygen (12+log(O/H) = 7.44), as well as othe
Externí odkaz:
http://arxiv.org/abs/astro-ph/0508255
We present the results of optical spectroscopy and imaging with the SAO 6m telescope for the dwarf galaxy DDO 68 (UGC 5340 = VV 542), falling into the region of very low density of luminous (L > L*) galaxies (Lynx-Cancer void). Its deep images in V,R
Externí odkaz:
http://arxiv.org/abs/astro-ph/0507658
Autor:
Pustilnik, S. A., Engels, D., Lipovetsky, V. A., Kniazev, A. Y., Pramskij, A. G., Ugryumov, A. V., Masegosa, J., Izotov, Y. I., Chaffee, F., Marquez, I., Teplyakova, A. L., Hopp, U., Brosch, N., Hagen, H. -J., Martin, J. -M.
We present the sixth list with results of the Hamburg/SAO Survey for Emission-Line Galaxies. The final list resulted from follow-up spectroscopy conducted with the 4.5m MMT telescope in 1996, and with 2.2m CAHA and 6m SAO telescopes in 2000 to 2003.
Externí odkaz:
http://arxiv.org/abs/astro-ph/0507082
Autor:
Kniazev, Alexei Y., Grebel, Eva K., Pustilnik, Simon A., Pramskij, Alexander G., Zucker, Daniel B.
Publikováno v:
Astron.J.130:1558-1573,2005
We present the results of high quality long-slit spectroscopy of planetary nebulae (PNe) and HII regions in the two dwarf irregular galaxies Sextans A and B, which belong to a small group of galaxies just outside the Local Group. In Sextans A we obta
Externí odkaz:
http://arxiv.org/abs/astro-ph/0502562
Planetary nebulae (PNe) and HII regions provide a probe of the chemical enrichment and star formation history of a galaxy from intermediate ages to the present day. We present the first results of NTT spectroscopy of HII regions and/or PNe in four ne
Externí odkaz:
http://arxiv.org/abs/astro-ph/0407133
Publikováno v:
Astron.Astrophys. 425 (2004) 51-65
We present the results of deep multicolour CCD imaging with the 6-m telescope of the pair of extremely metal-deficient gas-rich dwarf galaxies SBS 0335-052 E and W. The total magnitudes in U,B,V,R,I bands and the integrated fluxes of H-alpha emission
Externí odkaz:
http://arxiv.org/abs/astro-ph/0405610
Autor:
Pustilnik, Simon, Kniazev, Alexei, Pramskij, Alexander, Izotov, Yuri, Foltz, Craig, Brosch, Noah, Martin, Jean-Michel, Ugryumov, Andrei
Publikováno v:
Astron.Astrophys. 419 (2004) 469-484
(Abridged) We present the results of high S/N long-slit spectroscopy with the Multiple Mirror and the SAO 6-m telescopes, optical imaging with the Wise 1-m telescope and HI observations with the Nancay Radio Telescope of the very metal-deficient (12+
Externí odkaz:
http://arxiv.org/abs/astro-ph/0404171
Publikováno v:
Astrophys.J.Suppl.153:429-445,2004
We present the first edition of the {S}DSS {H}II-galaxies with {O}xygen abundances {C}atalog (SHOC), which is a listing of strong emission-line galaxies (ELGs) from the Sloan Digital Sky Survey (SDSS). Oxygen abundances have been obtained with the cl
Externí odkaz:
http://arxiv.org/abs/astro-ph/0404133
Autor:
Kniazev, Alexei Y., Grebel, Eva K., Pustilnik, Simon A., Pramskij, Alexander G., Kniazeva, Tamara F., Prada, Francisco, Harbeck, Daniel
In this paper we present results of a pilot study to use imaging data from the Sloan Digital Sky Survey (SDSS) to search for low-surface-brightness (LSB) galaxies. For our pilot study we use a test sample of 92 galaxies from the catalog of Impey et a
Externí odkaz:
http://arxiv.org/abs/astro-ph/0310644