До процедури точного пошуку слабкої вузької лiнiї в рентгенiвському спектрi – роль систематики, спричиненої моделюванням континууму

Автор(и)

  • D. O. Savchenko Bogolyubov Institute for Theoretical Physics
  • D. A. Iakubovskyi Discovery Center, Niels Bohr Institute, Bogolyubov Institute for Theoretical Physics

DOI:

https://doi.org/10.15407/ujpe62.07.0642

Ключові слова:

X-rays, general line, identification of the dark matter

Анотація

За деякими з недавнiх детектувань вузької лiнiї випромiнювання на ∼3,5 кеВ послiдували дослiдження, що показали вiдсутнiсть лiнiї в тих самих джерелах. Це спричинило дискусiї стосовно рiвня систематичних похибок. В цiй статтi ми дослiджуємо систематику, що спричинена недосконалим знанням моделi континууму. Проста теоретична оцiнка та детальне моделювання симульованих спектрiв дозволяють нам вперше визначити величину цiєї систематичної похибки. Показано, що для деяких об’єктiв з добре визначеною моделлю континууму, таким як галактика Андромеди, карликова сферична галактика Драко, отриманий рiвень систематики дозволяє привести у вiдповiднiсть спiрнi результати рiзних груп авторiв. Показано, що для зменшення ефекту систематики, спричиненої моделюванням континуума, необхiдно зменшувати розмiр енергетичного бiну в спектрi та збiльшувати iнтервал енергiй при моделюваннi.

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Завантаження

Опубліковано

2018-12-13

Номер

Розділ

Астрофізика і космологія

Як цитувати

До процедури точного пошуку слабкої вузької лiнiї в рентгенiвському спектрi – роль систематики, спричиненої моделюванням континууму. (2018). Український фізичний журнал, 62(7), 642. https://doi.org/10.15407/ujpe62.07.0642

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