On the non-variability of HR 7653 (15 Vul) based on BRITE data

J 2018

On the non-variability of HR 7653 (15 Vul) based on BRITE data

SMALLEY, Barry; Ernst PAUNZEN; Theresa LUFTINGER; Tony MOFFAT; Andrzej PIGULSKI et al.

Základní údaje

Originální název

On the non-variability of HR 7653 (15 Vul) based on BRITE data

Autoři

SMALLEY, Barry; Ernst PAUNZEN; Theresa LUFTINGER; Tony MOFFAT; Andrzej PIGULSKI; Slavek RUCINSKI; Jason SIKORA; Gregg WADE a Werner WEISS

Vydání

Bulgarian Astronomical Journal, Sofia, Institute of Astronomy, Bulgarian Academy of Sciences, 2018, 1313-2709

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10308 Astronomy

Stát vydavatele

Bulharsko

Utajení

není předmětem státního či obchodního tajemství

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/18:00104477

Organizační jednotka

Přírodovědecká fakulta

UT WoS

000438558400003

EID Scopus

2-s2.0-85036566867

Klíčová slova anglicky

stars: early-type; stars: fundamental parameters; techniques: photometric

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 23. 4. 2024 12:42, Mgr. Michal Petr

Anotace

V originále

We present space-based BRITE photometric observations of the metallic line (CP1) star HR 7653 (15 Vul). This chemically peculiar star of the upper main sequence was suspected to show variability due to rotation and a magnetic field. Such a variability is quite unusual among the, in general, non-magnetic CP1 stars. We investigated the astrophysical parameters of HR 7653 placing it close to the terminal age main sequence or even in the subgiant phase. The longest BRITE data set has a time base of 18.01 d from which we conclude that there are no coherent long-period variations (> 1 d) visible above 2.1 mmag in the red and 6.6 mmag in the blue. Furthermore, we searched for ffi Scuti type pulsations. On the basis of a discrete Fourier analysis method, we find no peaks in the Fourier spectra above 0.5 mmag and 8.6 mmag, for the red and blue filters, respectively.

Návaznosti

7AMB17AT030, projekt VaV

Název: Analýza hvězd se skvrnami pomocí kvalitních pozorovacích dat

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Analýza hvězd se skvrnami pomocí kvalitních pozorovacích dat

Citovat

SMALLEY, Barry; Ernst PAUNZEN; Theresa LUFTINGER; Tony MOFFAT; Andrzej PIGULSKI; Slavek RUCINSKI; Jason SIKORA; Gregg WADE a Werner WEISS. On the non-variability of HR 7653 (15 Vul) based on BRITE data. Bulgarian Astronomical Journal. Sofia: Institute of Astronomy, Bulgarian Academy of Sciences, 2018, roč. 28, č. 1, s. 27-36. ISSN 1313-2709.

@article{1468441,
   author = {Smalley, Barry and Paunzen, Ernst and Luftinger, Theresa and Moffat, Tony and Pigulski, Andrzej and Rucinski, Slavek and Sikora, Jason and Wade, Gregg and Weiss, Werner},
   article_location = {Sofia},
   article_number = {1},
   keywords = {stars: early-type; stars: fundamental parameters; techniques: photometric},
   language = {eng},
   issn = {1313-2709},
   journal = {Bulgarian Astronomical Journal},
   title = {On the non-variability of HR 7653 (15 Vul) based on BRITE data},
   volume = {28},
   year = {2018}
}

TY  - JOUR
ID  - 1468441
AU  - Smalley, Barry - Paunzen, Ernst - Luftinger, Theresa - Moffat, Tony - Pigulski, Andrzej - Rucinski, Slavek - Sikora, Jason - Wade, Gregg - Weiss, Werner
PY  - 2018
TI  - On the non-variability of HR 7653 (15 Vul) based on BRITE data
JF  - Bulgarian Astronomical Journal
VL  - 28
IS  - 1
SP  - 27-36
EP  - 27-36
PB  - Institute of Astronomy, Bulgarian Academy of Sciences
SN  - 13132709
KW  - stars: early-type
KW  - stars: fundamental parameters
KW  - techniques: photometric
N2  - We present space-based BRITE photometric observations of the metallic line (CP1) star HR 7653 (15 Vul). This chemically peculiar star of the upper main sequence was suspected to show variability due to rotation and a magnetic field. Such a variability is quite unusual among the, in general, non-magnetic CP1 stars. We investigated the astrophysical parameters of HR 7653 placing it close to the terminal age main sequence or even in the subgiant phase. The longest BRITE data set has a time base of 18.01 d from which we conclude that there are no coherent long-period variations (> 1 d) visible above 2.1 mmag in the red and 6.6 mmag in the blue. Furthermore, we searched for ffi Scuti type pulsations. On the basis of a discrete Fourier analysis method, we find no peaks in the Fourier spectra above 0.5 mmag and 8.6 mmag, for the red and blue filters, respectively.
ER  -

SMALLEY, Barry; Ernst PAUNZEN; Theresa LUFTINGER; Tony MOFFAT; Andrzej PIGULSKI; Slavek RUCINSKI; Jason SIKORA; Gregg WADE a Werner WEISS. On the non-variability of HR 7653 (15 Vul) based on BRITE data. \textit{Bulgarian Astronomical Journal}. Sofia: Institute of Astronomy, Bulgarian Academy of Sciences, 2018, roč.~28, č.~1, s.~27-36. ISSN~1313-2709.

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