| PAUNZEN, Ernst, Jan FLORIAN, Anna GUTL-WALLNER, Andreas HERDIN, Erwin KRALOFSKY, Kieran LESCHINSKI, Michael MACH, Hans-Michael MAITZEN, Michal PRIŠEGEN, Markus ROCKENBAUER, Monika RODE-PAUNZEN a Stefan WALLNER. An analysis of four stellar rings. Astronomische Nachrichten. Potsdam, Germany: Astrophysikalisches Institut Potsdam, roč. 339, 9-10, s. 672-679. ISSN 0004-6337. doi:10.1002/asna.201913547. 2018. |
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@article{1510437,
author = {Paunzen, Ernst and Florian, Jan and GutlandWallner, Anna and Herdin, Andreas and Kralofsky, Erwin and Leschinski, Kieran and Mach, Michael and Maitzen, HansandMichael and Prišegen, Michal and Rockenbauer, Markus and RodeandPaunzen, Monika and Wallner, Stefan},
article_location = {Potsdam, Germany},
article_number = {9-10},
doi = {http://dx.doi.org/10.1002/asna.201913547},
keywords = {galaxy: structure; ISM: bubbles; open clusters and associations: general; stars: early-type},
language = {eng},
issn = {0004-6337},
journal = {Astronomische Nachrichten},
title = {An analysis of four stellar rings},
volume = {339},
year = {2018}
}
TY - JOUR
ID - 1510437
AU - Paunzen, Ernst - Florian, Jan - Gutl-Wallner, Anna - Herdin, Andreas - Kralofsky, Erwin - Leschinski, Kieran - Mach, Michael - Maitzen, Hans-Michael - Prišegen, Michal - Rockenbauer, Markus - Rode-Paunzen, Monika - Wallner, Stefan
PY - 2018
TI - An analysis of four stellar rings
JF - Astronomische Nachrichten
VL - 339
IS - 9-10
SP - 672-679
EP - 672-679
PB - Astrophysikalisches Institut Potsdam
SN - 00046337
KW - galaxy: structure
KW - ISM: bubbles
KW - open clusters and associations: general
KW - stars: early-type
N2 - About 50 years ago, one thousand ring-like structures (called stellar-rings) were discovered by Isserstedt (1968). They were believed to be groups of young stars formed by shell-like triggered star formation, which would make them excellent tracers of spiral arms, for example. Neglected for 40 years, we used highly accurate kinematic, astrometric, and photometric data to investigate the four most prominent stellar rings. The aim is to investigate if those structures are indeed physically related groups of stars. We used proper motions and parallaxes from the Gaia DR2 to calculate distances and to search for common properties. Color-magnitude diagrams using BVJHK(s) measurements were investigated and isochrones fitted. None of the four stellar rings consists of a physically related group of young stars. The location of stars in the line-of-sight mimics a ring-like structure on the sky. The color-magnitude diagrams are typical for an integrated field population and not for a young star cluster, for example. The currently available data are sufficient to analyze ring-like structures with a high statistical significance. This allows a new search for such structures in the Milky Way.
ER -
PAUNZEN, Ernst, Jan FLORIAN, Anna GUTL-WALLNER, Andreas HERDIN, Erwin KRALOFSKY, Kieran LESCHINSKI, Michael MACH, Hans-Michael MAITZEN, Michal PRIŠEGEN, Markus ROCKENBAUER, Monika RODE-PAUNZEN a Stefan WALLNER. An analysis of four stellar rings. \textit{Astronomische Nachrichten}. Potsdam, Germany: Astrophysikalisches Institut Potsdam, roč.~339, 9-10, s.~672-679. ISSN~0004-6337. doi:10.1002/asna.201913547. 2018.
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