Zobrazeno 1 - 10
of 11
pro vyhledávání: '"S. K. Gorny"'
Publikováno v:
Astronomy & Astrophysics. 439:651-661
The eruption of V4332 Sgr discovered in February 1994 shows striking similarities to that of V838 Mon started in January 2002. The nature of these eruptions is, however, enigmatic and unclear. We present new photometric and spectroscopic data on V433
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cce8d89b331a79426600c2c2ad87cbfe
https://doi.org/10.1051/0004-6361:20041581
https://doi.org/10.1051/0004-6361:20041581
Publikováno v:
Astronomy & Astrophysics. 427:231-244
We have observed 44 planetary nebulae (PNe) in the direction of the Galactic bulge, and merged our data with published ones. We have distinguished, in the merged sample of 164 PNe, those PNe most likely to prtain physically to the Galactic bulge and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d80b794b0af8d3a7cba3e7cbbfb8896
https://doi.org/10.1051/0004-6361:20047064
https://doi.org/10.1051/0004-6361:20047064
V4332 Sgr is a red transient (red nova) whose eruption was observed in 1994. The remnant of the eruption shows a unique optical spectrum: strong emission lines of atoms and molecules superimposed on an M-type stellar spectrum. The stellar-like remnan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e9b5b940c6f9e81779b1f50246a74278
http://arxiv.org/abs/1412.7822
http://arxiv.org/abs/1412.7822
Publikováno v:
Astronomy & Astrophysics. 377:1007-1015
We have gathered from the literature near and mid infrared (photometric and spectroscopic) data for Galactic planetary nebulae, with special attention to planetary nebulae surrounding Wolf-Rayet type central stars ((WR) PN). These data have been anal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae82d09b6f5af09fddc6a9c02f3f172a
https://doi.org/10.1051/0004-6361:20011050
https://doi.org/10.1051/0004-6361:20011050
We present a homogeneous set of spectroscopic measurements secured with 4-meter class telescopes for a sample of 90 planetary nebulae (PNe) located in the direction of the Galactic bulge. We derive their plasma parameters and chemical abundances. For
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de375abd1a0e4eab7e3fa7f6bbb5fb74
http://arxiv.org/abs/0905.1826
http://arxiv.org/abs/0905.1826
Our understanding of the chemical evolution of the Galactic bulge requires the determination of abundances in large samples of giant stars and planetary nebulae (PNe). We discuss PNe abundances in the Galactic bulge and compare these results with tho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb0dd35ed76cb20f05566da9a94a7410
Publikováno v:
Universidad Nacional Autónoma de México
UNAM
Redalyc-UNAM
Revista Mexicana de Astronomía y Astrofísica (México) Vol.26
UNAM
Redalyc-UNAM
Revista Mexicana de Astronomía y Astrofísica (México) Vol.26
"Se discuten algunos problemas en la determinaci?on de gradientes de abundancias en la V??a L?actea utilizandonebulosas planetarias. Se propone una nueva determinaci?on usando una muestra amplia y homog?enea deobjetos y se presenta un nuevo m?etodo p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::2deca7f2917947bfc9c2d45c1c7cfe1e
http://www.redalyc.org/articulo.oa?id=57102611
http://www.redalyc.org/articulo.oa?id=57102611
Autor:
A. Acker, S. K. Gorny, Jeremy R. Walsh, K. Gozdziewski, Krzysztof Gesicki, Albert A. Zijlstra
The kinematic structure of a sample of planetary nebulae, consisting of 23 [WR] central stars, 21 weak emission line stars (wels) and 57 non-emission line central stars, is studied. The [WR] stars are shown to be surrounded by turbulent nebulae, a ch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::443e15d9e670d654ea9193cda9821c14
Publikováno v:
AIP Conference Proceedings.
This is a progress report on a project aiming at reexamining the abundance gradients in the Milky Way as derived from planetary nebulae (PNe). Our first efforts were to constitute an adequate sample. We have observed over 100 PNe using low‐ and hig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::85c00c18f8384bb592f3db20172dcf4d
https://doi.org/10.1063/1.2146284
https://doi.org/10.1063/1.2146284
Autor:
S. K. Gorny, D. A. García-Hernández
Publikováno v:
Astronomy & Astrophysics. 567:A12
We present new low-resolution (R~800) optical spectra of 22 Galactic PNe with Spitzer spectra. These data are combined with recent optical spectroscopic data available in the literature to construct representative samples of compact (and presumably y
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd8a9712b98677e816c97fc21c3fd3e9
https://doi.org/10.1051/0004-6361/201423620
https://doi.org/10.1051/0004-6361/201423620