Photometric Behavior of the Herbig Ae Star VX Cas in the Near-Infrared and Optical Ranges of the Spectrum

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Photometric Behavior of the Herbig Ae Star VX Cas in the Near-Infrared and Optical Ranges of the Spectrum. / Efimova, N. V.; Arkharov, A. A.; Grinin, V. P.; Rostopchina-Shakhovskaya, A. N.; Shakhovskoi, D. N.; Larionov, V. M.; Klimanov, S. A.; Gorshanov, D. L.

в: Astronomy Reports, Том 66, № 3, 01.03.2022, стр. 236-244.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

Author

Efimova, N. V. ; Arkharov, A. A. ; Grinin, V. P. ; Rostopchina-Shakhovskaya, A. N. ; Shakhovskoi, D. N. ; Larionov, V. M. ; Klimanov, S. A. ; Gorshanov, D. L. / Photometric Behavior of the Herbig Ae Star VX Cas in the Near-Infrared and Optical Ranges of the Spectrum. в: Astronomy Reports. 2022 ; Том 66, № 3. стр. 236-244.

BibTeX

@article{6b06d5a1b6174f5d98c9fb8b787d5472,

title = "Photometric Behavior of the Herbig Ae Star VX Cas in the Near-Infrared and Optical Ranges of the Spectrum",

abstract = "Abstract: This paper presents the results of the study of long-term photometric activity in the near infrared spectral region of the young Herbig Ae star VX Cas belonging to the family of irregular UX Ori variables. The infrared data were obtained in 2003–2017 at the Campo Imperatore Observatory (Italy) using the Pulkovo telescope AZT-24 in Johnson{\textquoteright}s photometric bands JHK. Additional optical photometry from various sources was used as well. It was shown that the observed photometric activity of the star in the J band and partly in the H band was caused mainly by variations in circumstellar extinction in the protoplanetary disk. In a number of episodes, anticorrelation was observed between brightness variations in the optical V band and H and K bands: the brightness in the H and K bands increased with weakening of the brightness in the V band. This indicates that the gas and dust clouds that screened the star from the observer consisted of hot dust and were located near the sublimation zone.",

keywords = "infrared and optical photometry, inner regions of the protoplanetary disk, star VX Cas, variable circumstellar extinction, young stars",

author = "Efimova, {N. V.} and Arkharov, {A. A.} and Grinin, {V. P.} and Rostopchina-Shakhovskaya, {A. N.} and Shakhovskoi, {D. N.} and Larionov, {V. M.} and Klimanov, {S. A.} and Gorshanov, {D. L.}",

year = "2022",

month = mar,

day = "1",

doi = "10.1134/S1063772922030027",

language = "English",

volume = "66",

pages = "236--244",

journal = "Astronomy Reports",

issn = "1063-7729",

publisher = "МАИК {"}Наука/Интерпериодика{"}",

number = "3",

}

RIS

TY - JOUR

T1 - Photometric Behavior of the Herbig Ae Star VX Cas in the Near-Infrared and Optical Ranges of the Spectrum

AU - Efimova, N. V.

AU - Arkharov, A. A.

AU - Grinin, V. P.

AU - Rostopchina-Shakhovskaya, A. N.

AU - Shakhovskoi, D. N.

AU - Larionov, V. M.

AU - Klimanov, S. A.

AU - Gorshanov, D. L.

PY - 2022/3/1

Y1 - 2022/3/1

N2 - Abstract: This paper presents the results of the study of long-term photometric activity in the near infrared spectral region of the young Herbig Ae star VX Cas belonging to the family of irregular UX Ori variables. The infrared data were obtained in 2003–2017 at the Campo Imperatore Observatory (Italy) using the Pulkovo telescope AZT-24 in Johnson’s photometric bands JHK. Additional optical photometry from various sources was used as well. It was shown that the observed photometric activity of the star in the J band and partly in the H band was caused mainly by variations in circumstellar extinction in the protoplanetary disk. In a number of episodes, anticorrelation was observed between brightness variations in the optical V band and H and K bands: the brightness in the H and K bands increased with weakening of the brightness in the V band. This indicates that the gas and dust clouds that screened the star from the observer consisted of hot dust and were located near the sublimation zone.

AB - Abstract: This paper presents the results of the study of long-term photometric activity in the near infrared spectral region of the young Herbig Ae star VX Cas belonging to the family of irregular UX Ori variables. The infrared data were obtained in 2003–2017 at the Campo Imperatore Observatory (Italy) using the Pulkovo telescope AZT-24 in Johnson’s photometric bands JHK. Additional optical photometry from various sources was used as well. It was shown that the observed photometric activity of the star in the J band and partly in the H band was caused mainly by variations in circumstellar extinction in the protoplanetary disk. In a number of episodes, anticorrelation was observed between brightness variations in the optical V band and H and K bands: the brightness in the H and K bands increased with weakening of the brightness in the V band. This indicates that the gas and dust clouds that screened the star from the observer consisted of hot dust and were located near the sublimation zone.

KW - infrared and optical photometry

KW - inner regions of the protoplanetary disk

KW - star VX Cas

KW - variable circumstellar extinction

KW - young stars

UR - http://www.scopus.com/inward/record.url?scp=85127409719&partnerID=8YFLogxK

U2 - 10.1134/S1063772922030027

DO - 10.1134/S1063772922030027

M3 - Article

AN - SCOPUS:85127409719

VL - 66

SP - 236

EP - 244

JO - Astronomy Reports

JF - Astronomy Reports

SN - 1063-7729

IS - 3

ER -

ID: 126125082