HW Волопаса

HW Волопаса
Звезда
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Наблюдательные данные
(Эпоха J2000.0)
Прямое восхождение 13ч 43м 23,17с[1]
Склонение +15° 09′ 16,83″[1]
Расстояние 396,2122 ± 25,557 пк[1]
Видимая звёздная величина (V) 18,5[2]
Созвездие Волопас
Астрометрия
Лучевая скорость (Rv) 240 км/с[3]
Собственное движение
 • прямое восхождение −31,563 ± 0,29 mas/год[1]
 • склонение 9,755 ± 0,221 mas/год[1]
Параллакс (π) 2,5239 ± 0,1628 mas[1]
Спектральные характеристики
Показатель цвета
 • B−V −1,5
Коды в каталогах
PB 4059, HS 1340+1524, SDSS J134323.16+150916.8, [ZEH2003] RX J1343.3+1509 3, 1RXS J134323.1+150916, RX J1343.3+1509, Gaia DR2 3741979368899159552 и HW Boo
Информация в базах данных
SIMBAD V* HW Boo
Логотип Викиданных Информация в Викиданных ?

HW Волопаса (лат. HW Boötis) — карликовая новая[4][5][2]*, двойная катаклизмическая переменная звезда типа U Близнецов (UG)[6] в созвездии Волопаса на расстоянии приблизительно 1292 световых лет (около 396 парсеков) от Солнца. Видимая звёздная величина звезды — от +17,7m до +14,2m[7]. Орбитальный период — около 92,7 минуты[8].

Характеристики

Первый компонент — аккрецирующий белый карлик спектрального класса pec(UG)[7]. Масса — около 0,75 солнечной[9].

Второй компонент — красный карлик спектрального класса M. Масса — около 0,1 солнечной[9].

Примечания

  1. ↑ 1 2 3 4 5 6 Gaia Data Release 2 (англ.) / Data Processing and Analysis Consortium, European Space Agency — 2018.
  2. ↑ 1 2 Aungwerojwit A., Gaensicke B. T., Rodriguez-Gil P., Hagen H.-J., Araujo-Betancor S., Baernbantner O., Engels D., Fried R. E., Harlaftis E. T., Mislis D. et al. Dwarf novae in the Hamburg quasar survey: rarer than expected (англ.) // Astronomy and Astrophysics / T. Forveille — EDP Sciences, 2006. — Vol. 455. — P. 659–672. — ISSN 0004-6361; 0365-0138; 1432-0746; 1286-4846 — doi:10.1051/0004-6361:20065049 — arXiv:astro-ph/0605588
  3. ↑ ADELMAN-McCARTHY J. K., et A. The SDSS Photometric Catalog, Release 7 — 2009. — Т. 2294. — С. 0.
  4. ↑ Otulakowska-Hypka M., Olech A., Patterson J. Statistical analysis of properties of dwarf novae outbursts (англ.) // Monthly Notices of the Royal Astronomical Society / D. Flower — OUP, 2016. — Vol. 460, Iss. 3. — P. 2526–2541. — 16 p. — ISSN 0035-8711; 1365-2966 — doi:10.1093/MNRAS/STW1120 — arXiv:1605.02937
  5. ↑ Gänsicke B. T., Dillon M., Southworth J., Thorstensen J. R., Rodríguez-Gil P., Aungwerojwit A., Marsh T. R., Szkody P., Barros, S. C. C., Casares J. et al. SDSS unveils a population of intrinsically faint cataclysmic variables at the minimum orbital period (англ.) // Monthly Notices of the Royal Astronomical Society / D. Flower — OUP, 2009. — Vol. 397, Iss. 4. — P. 2170–2188. — 19 p. — ISSN 0035-8711; 1365-2966 — doi:10.1111/J.1365-2966.2009.15126.X — arXiv:0905.3476
  6. ↑ Wils P., Gänsicke B. T., Drake A. J., Southworth J. Data mining for dwarf novae in SDSS, GALEX and astrometric catalogues (англ.) // Monthly Notices of the Royal Astronomical Society / D. Flower — OUP, 2010. — Vol. 402, Iss. 1. — P. 436–446. — ISSN 0035-8711; 1365-2966 — doi:10.1111/J.1365-2966.2009.15894.X — arXiv:0910.3218
  7. ↑ 1 2 HW Boo Архивная копия от 9 июля 2021 на Wayback Machine, 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 6 августа 2012 на Wayback Machine Accessed online 2021-06-30.
  8. ↑ Belloni D., Schreiber M. R., Pala A. F., Gänsicke B. T., Zorotovic M., Rodrigues C. V. Evidence for reduced magnetic braking in polars from binary population models (англ.) // Monthly Notices of the Royal Astronomical Society / D. Flower — OUP, 2020. — Vol. 491, Iss. 4. — P. 5717—5731. — ISSN 0035-8711; 1365-2966 — doi:10.1093/MNRAS/STZ3413 — arXiv:1910.06333
  9. ↑ 1 2 Dubus G., Otulakowska-Hypka M., Lasota J. Testing the disk instability model of cataclysmic variables (англ.) // Astronomy and Astrophysics / T. Forveille — EDP Sciences, 2018. — Vol. 617. — 14 p. — ISSN 0004-6361; 0365-0138; 1432-0746; 1286-4846 — doi:10.1051/0004-6361/201833372 — arXiv:1805.02110

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