Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Valentin A. Lipovetsky"'
Autor:
W. K. Huchtmeier, S. A. Pustilnik, Valentin A. Lipovetsky, Noah Brosch, G. Richter, J. M. Martin
Publikováno v:
Astronomy & Astrophysics. 389:405-418
We present here results of studies of the properties of galaxies located in very low density environments. We observed 26 blue compact galaxies (BCGs) from the Second Byurakan (SBS) and Case surveys located in voids with the radial velocities V < 110
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4598e3578db9746f290fe6b49e5dc4cd
https://doi.org/10.1051/0004-6361:20020591
https://doi.org/10.1051/0004-6361:20020591
Autor:
Valentin A. Lipovetsky, Richard F. Green, Craig B. Foltz, J. A. Stepanian, L. K. Erastova, V. H. Chavushyan, Frederic H. Chaffee
Publikováno v:
The Astronomical Journal. 122:3361-3382
The results of spectroscopic observations of 202 stellar objects, and photometric observations of 171, from the Second Byurakan Survey (SBS) are reported. The SBS sample has proved to be a rich source of newly identified quasars, Seyfert-type galaxie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::00145987793a92da88c8d34a08e66df4
https://doi.org/10.1086/324460
https://doi.org/10.1086/324460
Autor:
H. J. Hagen, A. V. Ugryumov, Josefa Masegosa, Ulrich Hopp, J. M. Martin, S. A. Pustilnik, A. G. Pramsky, D. Engels, T. F. Kniazeva, Valentin A. Lipovetsky, Yuri I. Izotov, Noah Brosch, Alexei Y. Kniazev, Isabel Márquez
Publikováno v:
Astronomy & Astrophysics. 366:771-787
We present the second part of the Hamburg/SAO Survey for Emission-Line Galaxies (HSS therein, SAO – Special Astrophysical Observatory, Russia) which is based on the digitized objective-prism photoplates database of the Hamburg Quasar Survey (HQS).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bde3c6c6761e04f7f7b5c3555e885a32
https://doi.org/10.1051/0004-6361:20000333
https://doi.org/10.1051/0004-6361:20000333
Publikováno v:
Astronomy and Astrophysics Supplement Series. 139:1-24
We present the results of a neutral hydrogen survey of 79 galaxies from a statistical sample of 88 Blue Compact Galaxies (BCGs) selected from the First and Second Byurakan objective prism surveys to have a HII region-like spectrum, an equivalent widt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5791799a719a6905a77f672738f14cf3
https://doi.org/10.1051/aas:1999373
https://doi.org/10.1051/aas:1999373
Publikováno v:
The Astrophysical Journal. 477:661-672
We present HST WFPC2 V and I images and GHRS UV spectrophotometry of the spectral regions around Ly$_alpha$ and OI 1302 of the extremely metal-deficient (Z~Zsun/41) blue compact dwarf (BCD) galaxy SBS 0335-052. All the star formation in the BCD occur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee06a581a08d6eaa853570df1baff980
https://doi.org/10.1086/303737
https://doi.org/10.1086/303737
Autor:
Yuri I. Izotov, Valentin A. Lipovetsky, Frederic H. Chaffee, Craig B. Foltz, Natalia G. Guseva, Alexei Y. Kniazev
Publikováno v:
The Astrophysical Journal. 476:698-711
The results of Multiple Mirror Telescope spectrophotometry of the extremely low-metallicity blue compact galaxy (BCG) SBS 0335-052 are presented. The oxygen abundance in central brightest part of the galaxy is found to be 12 + log(O/H) = 7.33+-0.01.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c0cb64c8e3e65828922a158cbfb834b
https://doi.org/10.1086/303664
https://doi.org/10.1086/303664
Publikováno v:
The Astrophysical Journal Supplement Series. 108:1-39
We present new high-quality spectrophotometric observations of 27 supergiant H II regions in 23 low-metallicity blue compact galaxies (BCGs) with oxygen abundance 12 + log (O/H) between 7.22 and 8.17 (Z☉/50 ≤ Z ≤ Z☉/6), most of which were sel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::614cd5da09bc5a3a2e9cf33e2951608f
https://doi.org/10.1086/312956
https://doi.org/10.1086/312956
Autor:
John J. Salzer, Alexei Y. Kniazev, L. M. Frattare, J. Ward Moody, Jose L. Herrero, Caryl Gronwall, Valentin A. Lipovetsky, Vicki L. Sarajedini, Trinh X. Thuan, Yuri I. Izotov, Todd A. Boroson
The KPNO International Spectroscopic Survey (KISS) is an objective-prism survey for extragalactic emission-line objects. It combines many of the features of previous slitless spectroscopic surveys with the advantages of modern CCD detectors, and is t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c4b210c0e8d72bbf095b8c1626f77da6
http://arxiv.org/abs/astro-ph/0112321
http://arxiv.org/abs/astro-ph/0112321
Autor:
John J. Salzer, C. Gronwall, Trinh X. Thuan, Todd A. Boroson, Jose L. Herrero, Yuri I. Izotov, Joseph Moody, Valentin A. Lipovetsky, L. M. Frattare, Alexei Y. Kniazev
Publikováno v:
Scopus-Elsevier
The KPNO International Spectroscopic Survey (KISS) is a new objective-prism survey for extragalactic emission-line objects. It combines many of the features of previous slitless spectroscopic surveys that were carried out with Schmidt telescopes usin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e1cf730201f80b0d0303fe9b7f846ac
http://arxiv.org/abs/astro-ph/0004074
http://arxiv.org/abs/astro-ph/0004074
Autor:
L. M. Frattare, Joseph Moody, C. Gronwall, Valentin A. Lipovetsky, A. Y. Kniazev, Todd A. Boroson, Trinh X. Thuan, John J. Salzer, Jose L. Herrero, Y. I. Izotov
The KPNO International Spectroscopic Survey (KISS) is a new objective-prism survey for extragalactic emission-line objects. It combines many of the features of previous slitless spectroscopic surveys with the advantages of modern CCD detectors, and i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::23ae1263904050013f4227b13bd022b4