The unusual broad-band X-ray spectral variability of NGC 1313 X-1 seen with XMM–Newton, Chandra, and NuSTAR

Walton, D.J.; Pinto, C.; Nowak, M.; Bachetti, M.; Sathyaprakash, R.; Kara, E.; Roberts, T.P.; Soria, R.; Brightman, M.; Canizares, C.R.; Earnshaw, H.P.; Fürst, F.; Heida, M.; Middleton, M.J.; Stern, D.; Tao, L.; Webb, N.; Alston, W.N.; Barret, D.; Fabian, A.C.; Harrison, F.A.; Kosec, P.

doi:10.1093/mnras/staa1129

All Outputs (4)

The Long‐Term Variability of a Population of ULXs Monitored by Chandra (2024)
Journal Article
Earnshaw, H. P., Patti, G., Brightman, M., Sathyaprakash, R., Walton, D. J., Fürst, F., Roberts, T. P., & Harrison, F. A. (online). The Long‐Term Variability of a Population of ULXs Monitored by Chandra. Astronomische Nachrichten, https://doi.org/10.1002/asna.20240103

We present preliminary results of a Chandra Large Program to monitor the ultraluminous x-ray source (ULX) populations of three nearby, ULX-rich galaxies over the course of a year, finding the ULX population to show a variety of long-term variability... Read More about The Long‐Term Variability of a Population of ULXs Monitored by Chandra.

Exploring the case for hard-X-ray beaming in NGC 6946 X-1 (2024)
Journal Article
Beuchert, T., Middleton, M. J., Soria, R., Miller-Jones, J. C. . A., Dauser, T., Roberts, T., Sathyaprakash, R., & Markoff, S. (in press). Exploring the case for hard-X-ray beaming in NGC 6946 X-1. Monthly Notices of the Royal Astronomical Society, https://doi.org/10.1093/mnras/stae1975

A multi-wavelength view of distinct accretion regimes in the pulsating ultraluminous X-ray source NGC 1313 X-2 (2022)
Journal Article
Sathyaprakash, R., Roberts, T., Grisé, F., Kaaret, P., Ambrosi, E., Done, C., Gladstone, J., Kajava, J., Soria, R., & Zampieri, L. (2022). A multi-wavelength view of distinct accretion regimes in the pulsating ultraluminous X-ray source NGC 1313 X-2. Monthly Notices of the Royal Astronomical Society, 511(4), 5346-5362. https://doi.org/10.1093/mnras/stac402

NGC 1313 X-2 is one of the few known pulsating ultraluminous X-ray sources (PULXs), and so is thought to contain a neutron star that accretes at highly super-Eddington rates. However, the physics of this accretion remains to be determined. Here, we r... Read More about A multi-wavelength view of distinct accretion regimes in the pulsating ultraluminous X-ray source NGC 1313 X-2.

The unusual broad-band X-ray spectral variability of NGC 1313 X-1 seen with XMM–Newton, Chandra, and NuSTAR (2020)
Journal Article
Walton, D., Pinto, C., Nowak, M., Bachetti, M., Sathyaprakash, R., Kara, E., Roberts, T., Soria, R., Brightman, M., Canizares, C., Earnshaw, H., Fürst, F., Heida, M., Middleton, M., Stern, D., Tao, L., Webb, N., Alston, W., Barret, D., Fabian, A., …Kosec, P. (2020). The unusual broad-band X-ray spectral variability of NGC 1313 X-1 seen with XMM–Newton, Chandra, and NuSTAR. Monthly Notices of the Royal Astronomical Society, 494(4), 6012-6029. https://doi.org/10.1093/mnras/staa1129

We present results from the major coordinated X-ray observing programme on the ULX NGC 1313 X-1 performed in 2017, combining XMM–Newton, Chandra, and NuSTAR, focusing on the evolution of the broad-band (∼0.3–30.0 keV) continuum emission. Clear and un... Read More about The unusual broad-band X-ray spectral variability of NGC 1313 X-1 seen with XMM–Newton, Chandra, and NuSTAR.