Detailed Information on Publication Record
2017
Time-Dependent Spectral Feature Variations of the FS CMa Star HD 50138
JEŘÁBKOVÁ, Tereza, Daniela KORČÁKOVÁ, A. S. MIROSHNICHENKO, S. DANFORD, S. V. ZHAKIROV et. al.Basic information
Original name
Time-Dependent Spectral Feature Variations of the FS CMa Star HD 50138
Name in Czech
Time-Dependent Spectral Feature Variations of the FS CMa Star HD 50138
Authors
JEŘÁBKOVÁ, Tereza (203 Czech Republic), Daniela KORČÁKOVÁ (203 Czech Republic), A. S. MIROSHNICHENKO (643 Russian Federation), S. DANFORD (840 United States of America), S. V. ZHAKIROV (643 Russian Federation), Radek KŘÍČEK (203 Czech Republic), Petr ZASCHE (203 Czech Republic), Viktor VOTRUBA (203 Czech Republic), Miroslav ŠLECHTA (203 Czech Republic), Petr ŠKODA (203 Czech Republic) and Jan JANÍK (203 Czech Republic, guarantor, belonging to the institution)
Edition
508. vyd. San Francisco, The B[e] Phenomenon: Forty Years of Studies, p. 375-376, 2 pp. 2017
Publisher
Astronomical Society of the Pacific
Other information
Language
English
Type of outcome
Stať ve sborníku
Field of Study
10308 Astronomy
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
Publication form
printed version "print"
RIV identification code
RIV/00216224:14310/17:00096530
Organization unit
Faculty of Science
ISBN
978-1-58381-900-5
UT WoS
000401591600059
Keywords (in Czech)
circumstellar matter; stars: emission line Be; stars: mass loss; binaries: spectroscopic; stars: individual: MWC 158
Keywords in English
circumstellar matter; stars: emission line Be; stars: mass loss; binaries: spectroscopic; stars: individual: MWC 158
Tags
Tags
International impact
Změněno: 3/4/2019 14:07, RNDr. Jan Janík, Ph.D.
V originále
HD 50138 (V743 Mon, MWC 158, or IRAS 06491-0654) is a B[e] star of the FS CMa type. It is supposed to be a post-main-sequence star, which is still not highly evolved. The presence of a gaseous and dusty envelope precludes direct observations of the central object, and the possible binarity and physical nature of HD 50138 remains unclear. We present a long-term spectroscopic monitoring of this object over the last 20 years (Jeřábková et al. 2016). Based on the obtained data, we confirm a quasi-periodic behavior of the object's spectral variability with two newly found long periods manifested in the Halpha and forbidden [O I] lines. The rotating structures around the object are supported by the detection of moving humps in the Halpha profile. Our results are consistent with either mass transfer in a binary system or the presence of an outflowing disk. Since our data cannot confirm the presence of a binary companion, the origin of such systems remains an interesting problem for further investigation.
In Czech
HD 50138 (V743 Mon, MWC 158, or IRAS 06491-0654) is a B[e] star of the FS CMa type. It is supposed to be a post-main-sequence star, which is still not highly evolved. The presence of a gaseous and dusty envelope precludes direct observations of the central object, and the possible binarity and physical nature of HD 50138 remains unclear. We present a long-term spectroscopic monitoring of this object over the last 20 years (Jeřábková et al. 2016). Based on the obtained data, we confirm a quasi-periodic behavior of the object's spectral variability with two newly found long periods manifested in the Halpha and forbidden [O I] lines. The rotating structures around the object are supported by the detection of moving humps in the Halpha profile. Our results are consistent with either mass transfer in a binary system or the presence of an outflowing disk. Since our data cannot confirm the presence of a binary companion, the origin of such systems remains an interesting problem for further investigation.