A NuSTAR study of quasi-periodic oscillations from the ultraluminous X-ray sources in M82
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| Main Authors: | , , , , , , , , , , , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866916911661449216 |
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| author | Byad, Hamza El Bachetti, Matteo Columbu, Silvia Rodriguez, Giuseppe Pilia, Maura Middleton, Matthew J. Walton, Dominic J Brightman, Murray Earnshaw, Hannah Forster, Karl Grefenstette, Brian Fürst, Felix Heida, Marianne Imbrogno, Matteo Lai, Eleonora Veronica Maccarone, Thomas |
| author_facet | Byad, Hamza El Bachetti, Matteo Columbu, Silvia Rodriguez, Giuseppe Pilia, Maura Middleton, Matthew J. Walton, Dominic J Brightman, Murray Earnshaw, Hannah Forster, Karl Grefenstette, Brian Fürst, Felix Heida, Marianne Imbrogno, Matteo Lai, Eleonora Veronica Maccarone, Thomas |
| contents | The study of quasi-periodic oscillations in X-ray binaries provides valuable insights into the physics of accretion around compact objects. The M82 galaxy hosts two ultraluminous X-ray sources (ULXs), one of which is suspected to harbor an intermediate-mass black hole. Using 39 NuSTAR observations acquired between 2014--2024, we investigate the aperiodic X-ray variability in M82. In particular, we study in detail the evolution of the QPO from M82 X-1 in the range 20--300 mHz. We do not find additional timing features in the data, besides a frequent broad noise component at lower frequencies. The QPO behaves similarly to other classes of low-frequency oscillations in accreting compact objects, both black holes and neutron stars. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2505_16921 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | A NuSTAR study of quasi-periodic oscillations from the ultraluminous X-ray sources in M82 Byad, Hamza El Bachetti, Matteo Columbu, Silvia Rodriguez, Giuseppe Pilia, Maura Middleton, Matthew J. Walton, Dominic J Brightman, Murray Earnshaw, Hannah Forster, Karl Grefenstette, Brian Fürst, Felix Heida, Marianne Imbrogno, Matteo Lai, Eleonora Veronica Maccarone, Thomas High Energy Astrophysical Phenomena Instrumentation and Methods for Astrophysics Data Analysis, Statistics and Probability Applications The study of quasi-periodic oscillations in X-ray binaries provides valuable insights into the physics of accretion around compact objects. The M82 galaxy hosts two ultraluminous X-ray sources (ULXs), one of which is suspected to harbor an intermediate-mass black hole. Using 39 NuSTAR observations acquired between 2014--2024, we investigate the aperiodic X-ray variability in M82. In particular, we study in detail the evolution of the QPO from M82 X-1 in the range 20--300 mHz. We do not find additional timing features in the data, besides a frequent broad noise component at lower frequencies. The QPO behaves similarly to other classes of low-frequency oscillations in accreting compact objects, both black holes and neutron stars. |
| title | A NuSTAR study of quasi-periodic oscillations from the ultraluminous X-ray sources in M82 |
| topic | High Energy Astrophysical Phenomena Instrumentation and Methods for Astrophysics Data Analysis, Statistics and Probability Applications |
| url | https://arxiv.org/abs/2505.16921 |