Zobrazeno 1 - 10
of 792
pro vyhledávání: '"FUERST, F."'
Autor:
Ballhausen, R., Thalhammer, P., Pradhan, P., Sokolova-Lapa, E., Stierhof, J., Pottschmidt, K., Wilms, J., Coley, J. B., Kretschmar, P., Fuerst, F., Becker, P., West, B., Malacaria, C., Wolff, M. T., Rothschild, R., Staubert, R.
In 2021, the high-mass X-ray binary EXO 2030+375 underwent a giant X-ray outburst, the first since 2006, that reached a peak flux of ${\sim}600\,\mathrm{mCrab}$ (3-50\,keV). The goal of this work is to study the spectral evolution over the course of
Externí odkaz:
http://arxiv.org/abs/2406.13029
Autor:
Alfonso-Garzón, J., Eijnden, J. van den, Kuin, N. P. M., Fürst, F., Rouco-Escorial, A., Fabregat, J., Reig, P., Mas-Hesse, J. M., Jenke, P. A., Malacaria, C., Wilson-Hodge, C.
From late September 2017 to February 2018, the Be X-ray binary (BeXB) Swift J0243.6+6124 underwent an unprecedently bright giant outburst. The reported X-ray luminosities were so high that the system was classified as an Ultraluminous X-ray source (U
Externí odkaz:
http://arxiv.org/abs/2312.08080
Autor:
Ludlam, R. M., Malacaria, C., Sokolova-Lapa, E., Fuerst, F., Pradhan, P., Shaw, A. W., Pottschmidt, K., Pike, S., Vasilopoulos, G., Wilms, J., García, J. A., Madsen, K., Stern, D., Maitra, C., Del Santo, M., Walton, D. J., Brumback, M. C., Eijnden, J. van den
Accreting neutron stars (NSs) represent a unique laboratory for probing the physics of accretion in the presence of strong magnetic fields ($B\gtrsim 10^8$ G). Additionally, the matter inside the NS itself exists in an ultra-dense, cold state that ca
Externí odkaz:
http://arxiv.org/abs/2311.04687
Autor:
Eijnden, J. van den, Escorial, A. Rouco, Alfonso-Garzón, J., Miller-Jones, J. C. A., Kretschmar, P., Fürst, F., Degenaar, N., Santisteban, J. V. Hernández, Sivakoff, G. R., Russell, T. D., Wijnands, R.
LS V +44 17 is a persistent Be/X-ray binary (BeXRB) that displayed a bright, double-peaked period of X-ray activity in late 2022/early 2023. We present a radio monitoring campaign of this outburst using the Very Large Array. Radio emission was detect
Externí odkaz:
http://arxiv.org/abs/2311.00631
Autor:
Eijnden, J. van den, Sidoli, L., Trigo, M. Diaz, Degenaar, N., Mellah, I. El, Fürst, F., Grinberg, V., Kretschmar, P., Martínez-Núñez, S., Miller-Jones, J. C. A., Postnov, K., Russell, T. D.
Neutron stars accreting from OB supergiants are often divided between persistently and transiently accreting systems, called Supergiant X-ray Binaries (SgXBs) and Supergiant Fast X-ray Transients (SFXTs). This dichotomy in accretion behaviour is typi
Externí odkaz:
http://arxiv.org/abs/2308.06021
Autor:
Kosec, P., Kara, E., Fabian, A. C., Fürst, F., Pinto, C., Psaradaki, I., Reynolds, C. S., Rogantini, D., Walton, D. J., Ballhausen, R., Canizares, C., Dyda, S., Staubert, R., Wilms, J.
The accretion of matter onto black holes and neutron stars often leads to the launching of outflows that can greatly affect the environments surrounding the compact object. In supermassive black holes, these outflows can even be powerful enough to di
Externí odkaz:
http://arxiv.org/abs/2304.05490
Autor:
Diez, C. M., Grinberg, V., Fürst, F., Mellah, I. El, Zhou, M., Santangelo, A., Martínez-Núñez, S., Amato, R., Hell, N., Kretschmar, P.
Publikováno v:
A&A 674, A147 (2023)
High-Mass X-ray Binaries (HMXBs) offer a unique opportunity for the investigation of accretion onto compact objects and of wind structure in massive stars. A key source for such studies is the bright neutron star HMXB Vela X-1 whose convenient physic
Externí odkaz:
http://arxiv.org/abs/2303.09631
Autor:
Fuerst, F., Walton, D. J., Israel, G. L., Bachetti, M., Barret, D., Brightman, M., Earnshaw, H. P., Fabian, A., Heida, M., Imbrogno, M., Middleton, M. J., Pinto, C., Salvaterra, R., Roberts, T. P., Castillo, G. A. Rodríguez, Webb, N.
Publikováno v:
A&A 672, A140 (2023)
NGC 5907 ULX1 is the most luminous ultra-luminous X-ray pulsar (ULXP) known to date, reaching luminosities in excess of 1e41 erg/s. The pulsar is known for its fast spin-up during the on-state. Here, we present a long-term monitoring of the X-ray flu
Externí odkaz:
http://arxiv.org/abs/2302.03425
Autor:
Barra, F., Pinto, C., Walton, D. J., Kosec, P., D'Aì, A., Di Salvo, T., Del Santo, M., Earnshaw, H., Fabian, A. C., Fuerst, F., Marino, A., Pintore, F., Robba, A., Roberts, T. P.
Despite two decades of studies, it is still not clear whether ULX spectral transitions are due to stochastic variability in the wind or variations in the accretion rate or in the source geometry. The compact object is also unknown for most ULXs. In o
Externí odkaz:
http://arxiv.org/abs/2207.12870
Autor:
Diez, C. M., Grinberg, V., Fürst, F., Sokolova-Lapa, E., Santangelo, A., Wilms, J., Pottschmidt, K., Martínez-Núñez, S., Malacaria, C., Kretschmar, P.
Publikováno v:
A&A 660, A19 (2022)
Because of its complex clumpy wind, prominent cyclotron resonant scattering features, intrinsic variability and convenient physical parameters (close distance, high inclination, small orbital separation) which facilitate the observation and analysis
Externí odkaz:
http://arxiv.org/abs/2201.04169