Zobrazeno 1 - 10
of 9 421
pro vyhledávání: '"Matthews, A. H."'
Autor:
Knight, Amy H., Rhodes, Lauren, Buisson, Douglas J. K., Matthews, James H., Segura, Noel Castro, Ingram, Adam, Middleton, Matthew, Roberts, Timothy P.
The neutron star low-mass X-ray binary, EXO 0748--676, recently returned to outburst after a $\sim$ 16 year-long quiescence. Since its return, there has been a global effort to capture the previously unseen rise of the source and to understand its so
Externí odkaz:
http://arxiv.org/abs/2411.03269
Autor:
Matthews, James H., Long, Knox S., Knigge, Christian, Sim, Stuart A., Parkinson, Edward J., Higginbottom, Nick, Mangham, Samuel W., Scepi, Nicolas, Wallis, Austen, Hewitt, Henrietta A., Mosallanezhad, Amin
Outflows are critical components of many astrophysical systems, including accreting compact binaries and active galactic nuclei (AGN). These outflows can significantly affect a system's evolution and alter its observational appearance by reprocessing
Externí odkaz:
http://arxiv.org/abs/2410.19908
Autor:
Parkinson, Edward J., Knigge, Christian, Dai, Lixin, Thomsen, Lars Lund, Matthews, James H., Long, Knox S.
Tidal disruption events (TDEs) can generate non-spherical, relativistic and optically thick outflows. Simulations show that the radiation we observe is reprocessed by these outflows. According to a unified model suggested by these simulations, the sp
Externí odkaz:
http://arxiv.org/abs/2408.16371
Many high-state cataclysmic variables (CVs) exhibit blue-shifted absorption features in their ultraviolet (UV) spectra -- a smoking-gun signature of outflows. However, the impact of these outflows on {\em optical} spectra remains much more uncertain.
Externí odkaz:
http://arxiv.org/abs/2406.14396
Autor:
Temple, Matthew J., Rankine, Amy L., Banerji, Manda, Hennawi, Joseph F., Hewett, Paul C., Matthews, James H., Nanni, Riccardo, Ricci, Claudio, Richards, Gordon T.
Publikováno v:
MNRAS 532, 424-437 (2024)
Understanding the links between different phases of outflows from active galactic nuclei is a key goal in extragalactic astrophysics. Here we compare [OIII] $\lambda\lambda$4960,5008 outflow signatures in quasars with and without Broad Absorption Lin
Externí odkaz:
http://arxiv.org/abs/2406.11968
Autor:
Hoof, Sebastian, Marsh, David J. E., Sisk-Reynés, Júlia, Matthews, James H., Reynolds, Christopher
Black hole (BH) superradiance can provide strong constraints on the properties of ultralight bosons (ULBs). Since most of the previous work has focused on the theoretical predictions, here we investigate the most suitable statistical framework to con
Externí odkaz:
http://arxiv.org/abs/2406.10337
Autor:
Higginbottom, Nick, Scepi, Nicolas, Knigge, Christian, Long, Knox S., Matthews, James H., Sim, Stuart A.
Disc winds are a common feature in accreting astrophysical systems on all scales. In active galactic nuclei (AGN) and accreting white dwarfs (AWDs), specifically, radiation pressure mediated by spectral lines is a promising mechanism for driving thes
Externí odkaz:
http://arxiv.org/abs/2312.06042
Autor:
Segura, N. Castro, Knigge, C., Matthews, J. H., Vincentelli, F. M., Charles, P., Long, K. S., Altamirano, D., Buckley, D. A. H., Modiano, D., Torres, M. A. P., Buisson, D. J. K., Fijma, S., Alabarta, K., Degenaar, N., Georganti, M., Baglio, M. C.
The evolution of accreting X-ray binary systems is closely coupled to the properties of their donor stars. As a result, we can constrain the evolutionary track a system is by establishing the nature of its donor. Here, we present far-UV spectroscopy
Externí odkaz:
http://arxiv.org/abs/2310.03397
Autor:
Matthews, James H., Strong-Wright, Jago, Knigge, Christian, Hewett, Paul, Temple, Matthew J., Long, Knox S., Rankine, Amy L., Stepney, Matthew, Banerji, Manda, Richards, Gordon T.
Publikováno v:
MNRAS 526, pp.3967-3986 (2023)
Blueshifts - or, more accurately, blue asymmetries - in broad emission lines such as CIV $\lambda$1550 are common in luminous quasars and correlate with fundamental properties such as Eddington ratio and broad absorption line (BAL) characteristics. H
Externí odkaz:
http://arxiv.org/abs/2309.14434
Autor:
Stepney, Matthew, Banerji, Manda, Hewett, Paul C., Temple, Matthew J., Rankine, Amy L., Matthews, James H., Richards, Gordon T.
We analyse the rest-frame UV spectra of 2,531 high-redshift (3.5
Externí odkaz:
http://arxiv.org/abs/2307.02962