Zobrazeno 1 - 10
of 1 635
pro vyhledávání: '"Knigge, P."'
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:
Veresvarska, M., Scaringi, S., Knigge, C., Paice, J., Buckley, D. A. H., Segura, N. Castro, de Martino, D., Groot, P. J., Ingram, A., Irving, Z. A., Szkody, P.
Almost all accreting black hole and neutron star X-ray binary systems (XRBs) exhibit prominent brightness variations on a few characteristic time-scales and their harmonics. These quasi-periodic oscillations (QPOs) are thought to be associated with t
Externí odkaz:
http://arxiv.org/abs/2410.01896
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
Autor:
Gandhi, P., Borowski, E. S., Byrom, J., Hynes, R. I., Maccarone, T. J., Shaw, A. W., Adegoke, O. K., Altamirano, D., Baglio, M. C., Bhargava, Y., Britt, C. T., Buckley, D. A. H., Buisson, D. J. K., Casella, P., Segura, N. Castro, Charles, P. A., Corral-Santana, J. M., Dhillon, V. S., Fender, R., Gúrpide, A., Heinke, C. O., Igl, A. B., Knigge, C., Markoff, S., Mastroserio, G., McCollough, M. L., Middleton, M., Miller, J. M., Miller-Jones, J. C. A., Motta, S. E., Paice, J. A., Pawar, D. D., Plotkin, R. M., Pradhan, P., Ressler, M. E., Russell, D. M., Russell, T. D., Santos-Sanz, P., Shahbaz, T., Sivakoff, G. R., Steeghs, D., Tetarenko, A. J., Tomsick, J. A., Vincentelli, F. M., George, M., Gurwell, M., Rao, R.
We present mid-infrared (MIR) spectral-timing measurements of the prototypical Galactic microquasar GRS 1915+105. The source was observed with the Mid-Infrared Instrument (MIRI) onboard JWST in June 2023 at a MIR luminosity L(MIR)~10^{36} erg/s excee
Externí odkaz:
http://arxiv.org/abs/2406.18637
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:
Knigge, David M., Wessels, David R., Valperga, Riccardo, Papa, Samuele, Sonke, Jan-Jakob, Gavves, Efstratios, Bekkers, Erik J.
Recently, Conditional Neural Fields (NeFs) have emerged as a powerful modelling paradigm for PDEs, by learning solutions as flows in the latent space of the Conditional NeF. Although benefiting from favourable properties of NeFs such as grid-agnostic
Externí odkaz:
http://arxiv.org/abs/2406.06660
Autor:
Wessels, David R, Knigge, David M, Papa, Samuele, Valperga, Riccardo, Vadgama, Sharvaree, Gavves, Efstratios, Bekkers, Erik J
Conditional Neural Fields (CNFs) are increasingly being leveraged as continuous signal representations, by associating each data-sample with a latent variable that conditions a shared backbone Neural Field (NeF) to reconstruct the sample. However, ex
Externí odkaz:
http://arxiv.org/abs/2406.05753
Autor:
Paice, John A., Scaringi, S., Segura, N. Castro, Sahu, A., Ilkiewicz, K., Coppejans, Deanne L., De Martino, D., Knigge, C., Veresvarska, M.
We report on spin variations in the intermediate polar and cataclysmic variable CC Scl, as seen by the Transiting Exoplanet Survey Satellite (TESS). By studying both the spin period and its harmonic, we find that the spin has varied since it was firs
Externí odkaz:
http://arxiv.org/abs/2405.05127
Autor:
Veresvarska, M., Scaringi, S., Hagen, S., De Martino, D., Done, C., Ilkiewicz, K., Knigge, C., Littlefield, C.
The classical nova CP Puppis has been observed to have particularly puzzling and peculiar properties. In particular, this classical nova displays occasional bursts in its long-term ASAS-SN light curve. Here we report on 5 sectors of TESS data display
Externí odkaz:
http://arxiv.org/abs/2402.14068
Autor:
Banerjee, Srimanta, Dewangan, Gulab C., Knigge, Christian, Georganti, Maria, Gandhi, Poshak, Mithun, N. P. S., Saikia, Payaswini, Bhattacharya, Dipankar, Russell, David M., Lewis, Fraser, Zdziarski, Andrzej A.
Publikováno v:
ApJ, 964, 189 (2024)
We present a comprehensive multi-wavelength spectral analysis of the black hole X-ray binary MAXI J1820+070 during its 2018 outburst, utilizing AstroSat far UV, soft and hard X-ray data, along with (quasi-)simultaneous optical and X-ray data from Las
Externí odkaz:
http://arxiv.org/abs/2402.08237