NGC 300 ULX1: Spin evolution, super-Eddington accretion, and outflows

Vasilopoulos, G.; Petropoulou, M.; Koliopanos, F.; Ray, P. S.; Bailyn, C. B.; Haberl, F.; Gendreau, K.

doi:10.1093/mnras/stz2045

アイテム詳細

登録内容を編集ファイル形式で保存

一時保存へ追加

タグ情報を表示リリース履歴を表示詳細要約

公開

学術論文

NGC 300 ULX1: Spin evolution, super-Eddington accretion, and outflows

MPS-Authors

/persons/resource/persons16282

Haberl, F.
High Energy Astrophysics, MPI for Extraterrestrial Physics, Max Planck Society;

External Resource

There are no locators available

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

フルテキスト (公開)

公開されているフルテキストはありません

付随資料 (公開)

There is no public supplementary material available

引用

Vasilopoulos, G., Petropoulou, M., Koliopanos, F., Ray, P. S., Bailyn, C. B., Haberl, F., & Gendreau, K. (2019). NGC 300 ULX1: Spin evolution, super-Eddington accretion, and outflows. Monthly Notices of the Royal Astronomical Society, 488(4), 5225-5231. doi:10.1093/mnras/stz2045.

引用: https://hdl.handle.net/21.11116/0000-0005-3FE2-6

要旨

NGC 300 ULX1 is an ultraluminous X-ray pulsar, showing an unprecedented spin evolution, from about 126 s to less than 20 s in only 4 yr, consistent with steady mass accretion rate. Following its discovery we have been monitoring the system with Swift and NICER to further study its properties. We found that even though the observed flux of the system dropped by a factor of ≳20, the spin-up rate remained almost constant. A possible explanation is that the decrease in the observed flux is a result of increased absorption of obscuring material due to outflows or a precessing accretion disc.