Zobrazeno 1 - 10
of 110
pro vyhledávání: '"Connors, R. A."'
Autor:
Kammoun, E., Lohfink, A. M., Masterson, M., Wilkins, D. R., Zhao, X., Baloković, M., Boorman, P. G., Connors, R. M. T., Coppi, P., Fabian, A. C., García, J. A., Madsen, K. K., Cavero, N. Rodriguez, Sridhar, N., Stern, D., Tomsick, J., Wevers, T., Walton, D. J., Bianchi, S., Buchner, J., Civano, F., Lanzuisi, G., Mallick, L., Matt, G., Merloni, A., Nardini, E., Piotrowska, J. M., Ricci, C., Wong, K. -W., Zoghbi, A., Collaboration, the HEX-P
The hard X-ray emission in active galactic nuclei (AGN) and black hole X-ray binaries is thought to be produced by a hot cloud of electrons referred to as the corona. This emission, commonly described by a power law with a high-energy cutoff, is sugg
Externí odkaz:
http://arxiv.org/abs/2311.04679
Autor:
Mastroserio, G., Grefenstette, B. W., Thalhammer, P., Buisson, D. J. K., Brumback, M. C., Ludlam, R. M., Connors, R. M. T., Garcıa, J. A., Grinberg, V., Madsen, K. K., Miyasaka, H., Tomsick, J. A., Wilms, J.
Due to the structure of the NuSTAR telescope, photons at large off-axis (> 1deg) can reach the detectors directly (stray light), without passing through the instrument optics. At these off-axis angles NuSTAR essentially turns into a collimated instru
Externí odkaz:
http://arxiv.org/abs/2209.14325
Autor:
Mallick, L., Fabian, A. C., García, J. A., Tomsick, J. A., Parker, M. L., Dauser, T., Wilkins, D. R., De Marco, B., Steiner, J. F., Connors, R. M. T., Mastroserio, G., Markowitz, A. G., Pinto, C., Alston, W. N., Lohfink, A. M., Gandhi, P.
The standard alpha-disc model predicts an anti-correlation between the density of the inner accretion disc and the black hole mass times square of the accretion rate, as seen in higher mass ($M_{\rm BH}>10^{6} M_{\odot}$) active galactic nuclei (AGNs
Externí odkaz:
http://arxiv.org/abs/2203.04522
Autor:
Brumback, McKinley C., Grefenstette, B. W., Buisson, D. J. K., Bachetti, M., Connors, R., Garcia, J. A., Jaodand, A., Krivonos, R., Ludlam, R., Madsen, K. K., Mastroserio, G., Tomsick, J. A., Wik, D.
StrayCats, the catalog of NuSTAR stray light observations, contains data from bright X-ray sources that fall within crowded source regions. These observations offer unique additional data with which to monitor sources like X-ray binaries that show va
Externí odkaz:
http://arxiv.org/abs/2202.11261
Autor:
Kantzas, D., Markoff, S., Lucchini, M., Ceccobello, C., Grinberg, V., Connors, R. M. T., Uttley, P.
Since the discovery of cosmic rays (CRs) over a century ago, their origin remains an open question. Galactic CRs with energy up to the knee ($10^{15}$ eV) are considered to originate from supernova remnants, but this scenario has recently been questi
Externí odkaz:
http://arxiv.org/abs/2201.02379
Autor:
Lucchini, M., Ceccobello, C., Markoff, S., Kini, Y., Chhotray, A., Connors, R. M. T., Crumley, P., Falcke, H., Kantzas, D., Maitra, D.
Accreting black holes are sources of major interest in astronomy, particular those launching jets because of their ability to accelerate particles, and dramatically affect their surrounding environment up to very large distances. The spatial, energy
Externí odkaz:
http://arxiv.org/abs/2108.12011
Supermassive black holes can launch powerful jets which can be some of the most luminous multi-wavelength sources; decades after their discovery their physics and energetics are still poorly understood. The past decade has seen a dramatic improvement
Externí odkaz:
http://arxiv.org/abs/1810.11341
Autor:
Weltman, A., Bull, P., Camera, S., Kelley, K., Padmanabhan, H., Pritchard, J., Raccanelli, A., Riemer-Sørensen, S., Shao, L., Andrianomena, S., Athanassoula, E., Bacon, D., Barkana, R., Bertone, G., Bonvin, C., Bosma, A., Brüggen, M., Burigana, C., Bœhm, C., Calore, F., Cembranos, J. A. R., Clarkson, C., Connors, R. M. T., de la Cruz-Dombriz, Á., Dunsby, P. K. S., Fonseca, J., Fornengo, N., Gaggero, D., Harrison, I., Larena, J., Ma, Y. -Z., Maartens, R., Méndez-Isla, M., Mohanty, S. D., Murray, S. G., Parkinson, D., Pourtsidou, A., Quinn, P. J., Regis, M., Saha, P., Sahlén, M., Sakellariadou, M., Silk, J., Trombetti, T., Vazza, F., Venumadhav, T., Vidotto, F., Villaescusa-Navarro, F., Wang, Y., Weniger, C., Wolz, L., Zhang, F., Gaensler, B. M.
Publikováno v:
Publ. Astron. Soc. Aust. 37 (2020) e002
The Square Kilometre Array (SKA) is a planned large radio interferometer designed to operate over a wide range of frequencies, and with an order of magnitude greater sensitivity and survey speed than any current radio telescope. The SKA will address
Externí odkaz:
http://arxiv.org/abs/1810.02680
Autor:
Connors, R. M. T., Markoff, S., Nowak, M. A., Neilsen, J., Ceccobello, C., Crumley, P., Froning, C. S., Gallo, E., Nip, J. E.
The `fundamental plane of black hole accretion' (FP), a relation between the radio luminosities ($L_R$), X-ray luminosities ($L_X$), and masses ($M_{BH}$) of hard/quiescent state black hole binaries and low-luminosity active galactic nuclei, suggests
Externí odkaz:
http://arxiv.org/abs/1612.00953
Publikováno v:
European Journal of Operational Research
We consider optimizing a truck's choice of path and speed profile to minimise fuel consumption, exploiting real-time predictive information on dynamically varying traffic conditions. Time-varying traffic conditions provide particular challenges, both