V744 Андромеды

V744 Андромеды
Звезда
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Наблюдательные данные
(Эпоха J2000.0)
Прямое восхождение 1ч 29м 40,06с[1]
Склонение +38° 42′ 10,44″[1]
Созвездие Андромеда
Астрометрия
Собственное движение
 • прямое восхождение −2,691 ± 0,827 mas/год[1]
 • склонение 6,332 ± 1,797 mas/год[1]
Параллакс (π) 2,0661 ± 0,5294 mas[1]
Спектральные характеристики
Спектральный класс DB:[2]
Физические характеристики
Температура 12 616 К[2]
Коды в каталогах
SDSS J012940.05+384210.4, Gaia DR2 323321873867827968 и V744 And
Информация в базах данных
SIMBAD V* V744 And
Логотип Викиданных Информация в Викиданных ?

V744 Андромеды (лат. V744 Andromedae) — двойная катаклизмическая переменная звезда типа AM Гончих Псов (AM)[3][4][5][6]*[7]* в созвездии Андромеды на расстоянии (вычисленном из значения параллакса) приблизительно 1579 световых лет (около 484 парсеков) от Солнца. Видимая звёздная величина звезды — от +20,05m до +15,13m[8]. Орбитальный период — около 0,02608 суток (0,6259 часа, 37,555 минуты)[9].

Характеристики

Первый компонент — аккрецирующий белый карлик спектрального класса pec(e)[8] или DB:. Эффективная температура — около 12616 K[2].

Второй компонент — белый карлик.

Примечания

  1. ↑ 1 2 3 4 5 Gaia Data Release 2 (англ.) / Data Processing and Analysis Consortium, European Space Agency — 2018.
  2. ↑ 1 2 3 Kleinman S. J., Kepler S. O., Koester D., Peçanha V., Nitta A., Costa J. E. S., Krzesinski J., Pelisoli I., Yip C., Harris H. C. et al. SDSS DR7 white dwarf catalog (англ.) // The Astrophysical Journal: Supplement Series — AAS, 2012. — Vol. 204, Iss. 1. — P. 5. — ISSN 0067-0049; 1538-4365 — doi:10.1088/0067-0049/204/1/5 — arXiv:1212.1222
  3. ↑ Levitan D., Groot P. J., Prince T. A., Kulkarni S. R., Laher R., Surace J., Sesar B., Ofek E. O. Long-term photometric behaviour of outbursting AM CVn systems (англ.) // Monthly Notices of the Royal Astronomical Society / D. Flower — OUP, 2014. — Vol. 446, Iss. 1. — P. 391–410. — 20 p. — ISSN 0035-8711; 1365-2966 — doi:10.1093/MNRAS/STU2105 — arXiv:1410.6987
  4. ↑ Gehron K., Nagel T., Rauch T., Werner K. Non-LTE spectral analysis of the AM CVn system PTF 09hpk during quiescence (англ.) // Astronomy and Astrophysics / T. Forveille — EDP Sciences, 2014. — Vol. 562. — 9 p. — ISSN 0004-6361; 0365-0138; 1432-0746; 1286-4846 — doi:10.1051/0004-6361/201322180
  5. ↑ Carter P. J., Gänsicke B. T., Steeghs D., Marsh T. R., Breedt E., Fusillo N. P. G., Nelemans G., Groot P. J. Two new AM Canum Venaticorum binaries from the Sloan Digital Sky Survey III (англ.) // Monthly Notices of the Royal Astronomical Society / D. Flower — OUP, 2014. — Vol. 439, Iss. 3. — P. 2848–2853. — 6 p. — ISSN 0035-8711; 1365-2966 — doi:10.1093/MNRAS/STU142 — arXiv:1312.3335
  6. ↑ Kupfer T., Groot P. J., Levitan D., Steeghs D., Rutten R. G. M., Nelemans G. Orbital periods and accretion disc structure of four AM CVn systems (англ.) // Monthly Notices of the Royal Astronomical Society / D. Flower — OUP, 2013. — Vol. 432, Iss. 3. — P. 2048–2060. — 13 p. — ISSN 0035-8711; 1365-2966 — doi:10.1093/MNRAS/STT524 — arXiv:1303.5610
  7. ↑ Ramsay G., Barclay T., Steeghs D., Wheatley P. J., Hakala P., Kotko I., Rosen S. The long-term optical behaviour of helium-accreting AM CVn binaries (англ.) // Monthly Notices of the Royal Astronomical Society / D. Flower — OUP, 2011. — Vol. 419, Iss. 4. — P. 2836–2843. — 8 p. — ISSN 0035-8711; 1365-2966 — doi:10.1111/J.1365-2966.2011.19924.X — arXiv:1109.6518
  8. ↑ 1 2 V744 And, database entry, Combined General Catalog of Variable Stars (GCVS5.1, 2017 Ed.), N. N. Samus, O. V. Durlevich, et al., CDS ID II/250 Архивная копия от 1 июля 2015 на Wayback Machine Accessed online 2021-04-19.
  9. ↑ Ramsay G., Green M. J., Marsh T. R., Kupfer T., Breedt E., Korol V., Groot P. J., Knigge C., Nelemans G., Steeghs D. et al. Physical properties of AM CVn stars: New insights from Gaia DR2 (англ.) // Astronomy and Astrophysics / T. Forveille — EDP Sciences, 2018. — Vol. 620. — P. 141–141. — ISSN 0004-6361; 0365-0138; 1432-0746; 1286-4846 — doi:10.1051/0004-6361/201834261 — arXiv:1810.06548

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