Joint XMM-Newton and NuSTAR Observations of Type I X-ray Bursts from the Dipping Low-Mass X-ray Binary 4U 1323-62

@misc{boztepe2026joint,
  title = {{Joint XMM-Newton and NuSTAR Observations of Type I X-ray Bursts from the Dipping Low-Mass X-ray Binary 4U 1323-62}},
  author = {Tugba Boztepe and Tolga Guver and Ersin Gogus and Diego Altamirano and Julia Speicher and Brian Luff and David R. Ballantyne},
  howpublished = {arXiv},
  year = {2026},
  month = aug,
  doi = {10.48550/arxiv.2605.11121},
  eprint = {2605.11121},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2605.11121},
}

TY  - UNPB
TI  - Joint XMM-Newton and NuSTAR Observations of Type I X-ray Bursts from the Dipping Low-Mass X-ray Binary 4U 1323-62
AU  - Tugba Boztepe
AU  - Tolga Guver
AU  - Ersin Gogus
AU  - Diego Altamirano
AU  - Julia Speicher
AU  - Brian Luff
AU  - David R. Ballantyne
PY  - 2026
DA  - 2026/08/30
PB  - arXiv
DO  - 10.48550/arxiv.2605.11121
UR  - https://arxiv.org/abs/2605.11121
AB  - In this study, we report partly simultaneous XMM-Newton and NuSTAR observations of the bursting, dipping low mass X-ray binary, 4U 1323-62 obtained in 2024. 4U 1323-62 is one of the well-known persistent bursters, with bursts occurring roughly every three hours. It is also one of the few sources for which the orbital period is known, and shows dips in X-rays. In this paper, we report the detection of 12 unique bursts with XMM-Newton and NuSTAR, 6 of them observed jointly. We detected two double burst events, one with the NuSTAR and another one observed with both missions. During our observations we detected 10 X-ray dips with a periodicity of 2.942 hours, in line with previous measurements. We also present the results of the time resolved X-ray spectral analysis of the bursts and show the limits on the cooling of the corona heated by the burst emission. We also found a $0.898+/- 0.017 Hz quasi-periodic oscillation (QPO) during the non-bursting and non-dipping times confirming previous detections.
ER  -