Identifying Ae/Be stars in Gaia low-resolution BP/RP spectra

J 2024

Identifying Ae/Be stars in Gaia low-resolution BP/RP spectra

PAUNZEN, Ernst; Michal PRIŠEGEN; Stefan HUEMMERICH; Klaus BERNHARD; Lukas KUESS et. al.

Základní údaje

Originální název

Identifying Ae/Be stars in Gaia low-resolution BP/RP spectra

Autoři

PAUNZEN, Ernst (40 Rakousko, domácí); Michal PRIŠEGEN (703 Slovensko); Stefan HUEMMERICH; Klaus BERNHARD a Lukas KUESS

Vydání

Contributions of the Astronomical Observatory Skalnaté Pleso, Tatranská Lomnica, Astronomical Institute of the Slovac Academy of Science, 2024, 1335-1842

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10308 Astronomy

Stát vydavatele

Slovensko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 0.400 v roce 2023

Kód RIV

RIV/00216224:14310/24:00139676

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.31577/caosp.2024.54.4.5

UT WoS

001322793100001

EID Scopus

2-s2.0-85204530711

Klíčová slova anglicky

Techniques: photometric; stars: emission-line; Be; stars: pre-main sequence

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 7. 1. 2025 17:04, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

Classical Be, and Herbig Ae/Be stars are mainly characterized by emission in the H alpha and H beta lines. These lines are essential to understanding the formation of massive stars and describing mass loss and stellar winds during stellar evolution. This study aims to characterize and detect classical Be and Herbig Ae/Be stars in Gaia BP/RP spectra, which allow us to investigate the complete stellar spectral range. Synthetic Delta a and H alpha alpha index magnitude values were calculated from Gaia BP/RP spectra. Colour-colour diagrams were employed to distinguish emission-line objects from normal stars. With the proposed method here, we could unambiguously retrieve 90% of a sample of wellknown emission-line objects. This shows that analyzing the 520 nm and H alpha alpha region efficiently discriminates emission-line objects from normal stars. No further assumptions about astrophysical parameters such as reddening, effective temperature, or IR excess are necessary.

Návaznosti

GA23-07605S, projekt VaV

Název: Osud galaktických otevřených hvězdokup

Investor: Grantová agentura ČR, Osud galaktických otevřených hvězdokup

Citovat

PAUNZEN, Ernst; Michal PRIŠEGEN; Stefan HUEMMERICH; Klaus BERNHARD a Lukas KUESS. Identifying Ae/Be stars in Gaia low-resolution BP/RP spectra. Contributions of the Astronomical Observatory Skalnaté Pleso. Tatranská Lomnica: Astronomical Institute of the Slovac Academy of Science, 2024, roč. 54, č. 4, s. 5-14. ISSN 1335-1842. Dostupné z: https://dx.doi.org/10.31577/caosp.2024.54.4.5.

@article{2465723,
   author = {Paunzen, Ernst and Prišegen, Michal and Huemmerich, Stefan and Bernhard, Klaus and Kuess, Lukas},
   article_location = {Tatranská Lomnica},
   article_number = {4},
   doi = {http://dx.doi.org/10.31577/caosp.2024.54.4.5},
   keywords = {Techniques: photometric; stars: emission-line; Be; stars: pre-main sequence},
   language = {eng},
   issn = {1335-1842},
   journal = {Contributions of the Astronomical Observatory Skalnaté Pleso},
   title = {Identifying Ae/Be stars in Gaia low-resolution BP/RP spectra},
   url = {https://www.astro.sk/caosp/Eedition/Abstracts/2024/Vol_54/No_4/pp5-14_abstract.html},
   volume = {54},
   year = {2024}
}

TY  - JOUR
ID  - 2465723
AU  - Paunzen, Ernst - Prišegen, Michal - Huemmerich, Stefan - Bernhard, Klaus - Kuess, Lukas
PY  - 2024
TI  - Identifying Ae/Be stars in Gaia low-resolution BP/RP spectra
JF  - Contributions of the Astronomical Observatory Skalnaté Pleso
VL  - 54
IS  - 4
SP  - 5-14
EP  - 5-14
PB  - Astronomical Institute of the Slovac Academy of Science
SN  - 13351842
KW  - Techniques: photometric
KW  - stars: emission-line
KW  - Be
KW  - stars: pre-main sequence
UR  - https://www.astro.sk/caosp/Eedition/Abstracts/2024/Vol_54/No_4/pp5-14_abstract.html
N2  - Classical Be, and Herbig Ae/Be stars are mainly characterized by emission in the H alpha and H beta lines. These lines are essential to understanding the formation of massive stars and describing mass loss and stellar winds during stellar evolution. This study aims to characterize and detect classical Be and Herbig Ae/Be stars in Gaia BP/RP spectra, which allow us to investigate the complete stellar spectral range. Synthetic Delta a and H alpha alpha index magnitude values were calculated from Gaia BP/RP spectra. Colour-colour diagrams were employed to distinguish emission-line objects from normal stars. With the proposed method here, we could unambiguously retrieve 90% of a sample of wellknown emission-line objects. This shows that analyzing the 520 nm and H alpha alpha region efficiently discriminates emission-line objects from normal stars. No further assumptions about astrophysical parameters such as reddening, effective temperature, or IR excess are necessary.
ER  -

PAUNZEN, Ernst; Michal PRIŠEGEN; Stefan HUEMMERICH; Klaus BERNHARD a Lukas KUESS. Identifying Ae/Be stars in Gaia low-resolution BP/RP spectra. \textit{Contributions of the Astronomical Observatory Skalnaté Pleso}. Tatranská Lomnica: Astronomical Institute of the Slovac Academy of Science, 2024, roč.~54, č.~4, s.~5-14. ISSN~1335-1842. Dostupné z: https://dx.doi.org/10.31577/caosp.2024.54.4.5.

Přehled o publikaci