Zobrazeno 1 - 10
of 4 228
pro vyhledávání: '"SHAW, A. W."'
Autor:
Shaw, A. W., Kaplan, D. L., Gandhi, P., Maccarone, T. J., Borowski, E. S., Britt, C. T., Buckley, D. A. H., Burdge, K. B., Charles, P. A., Dhillon, V. S., French, R. G., Heinke, C. O., Hynes, R. I., Knigge, C., Littlefair, S. P., Pawar, Devraj, Plotkin, R. M., Ressler, M. E., Santos-Sanz, P., Shahbaz, T., Sivakoff, G. R., Stevens, A. L.
JWST, despite not being designed to observe astrophysical phenomena that vary on rapid time scales, can be an unparalleled tool for such studies. If timing systematics can be controlled, JWST will be able to open up the sub-second infrared timescale
Externí odkaz:
http://arxiv.org/abs/2411.02238
Autor:
Mastroserio, G., De Marco, B., Baglio, M. C., Carotenuto, F., Fabiani, S., Russell, T. D., Capitanio, F., Cavecchi, Y., Motta, S., Russell, D. M., Dovciak, M., Del Santo, M., Alabarta, K., Ambrifi, A., Campana, S., Casella, P., Covino, S., Illiano, G., Kara, E., Lai, E. V., Lodato, G., Manca, A., Mariani, I., Marino, A., Miceli, C., Saikia, P., Shaw, A. W., Svoboda, J., Vincentelli, F. M., Wang, J.
We present the first X-ray polarization measurements of GX 339-4. IXPE observed this source twice during its 2023-2024 outburst, once in the soft-intermediate state and again during a soft state. The observation taken during the intermediate state sh
Externí odkaz:
http://arxiv.org/abs/2408.06856
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
X-ray measurement of a high-mass white dwarf and its spin for the intermediate polar IGR J18434-0508
Autor:
Gerber, Julian, Hare, Jeremy, Tomsick, John A., Coughenour, Benjamin M., Shaw, Aarran W., Clavel, Maïca, Fornasini, Francesca, Halpern, Jules, Joens, Alyson, Krivonos, Roman, Mukai, Koji
IGR J18434-0508 is a Galactic Intermediate Polar (IP) type Cataclysmic Variable (CV) previously classified through optical spectroscopy. The source is already known to have a hard Chandra spectrum. In this paper, we have used follow-up XMM-Newton and
Externí odkaz:
http://arxiv.org/abs/2403.19170
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
The recurring transient outbursts in low-mass X-ray binaries (LMXBs) provide ideal laboratories to study the accretion process. Unlike their supermassive relatives, LMXBs are far too small and distant to be imaged directly. Fortunately, phase-resolve
Externí odkaz:
http://arxiv.org/abs/2310.11438
Autor:
Moutard, David, Ludlam, Renee, García, Javier A., Altamirano, Diego, Buisson, Douglas J. K., Cackett, Edward M., Chenevez, Jérôme, Degenaar, Nathalie, Fabian, Andrew C., Homan, Jeroen, Jaodand, Amruta, Pike, Sean N., Shaw, Aarran W., Strohmayer, Tod E., Tomsick, John A., Coughenour, Benjamin M.
We present the first joint NuSTAR and NICER observations of the ultra-compact X-ray binary (UCXB) 4U 0614+091. This source shows quasi-periodic flux variations on the timescale of ~days. We use reflection modeling techniques to study various componen
Externí odkaz:
http://arxiv.org/abs/2308.15581
Autor:
Pike, Sean N., Sugizaki, Mutsumi, Eijnden, Jakob van den, Coughenour, Benjamin, Jaodand, Amruta D., Mihara, Tatehiro, Motta, Sara E., Negoro, Hitoshi, Shaw, Aarran W., Shidatsu, Megumi, Tomsick, John A.
We present MAXI and NuSTAR observations of the Be X-ray binary, MAXI J0655-013, in outburst. NuSTAR observed the source once early in the outburst, when spectral analysis yields a bolometric (0.1--100 keV), unabsorbed source luminosity of $L_{\mathrm
Externí odkaz:
http://arxiv.org/abs/2306.16489
Autor:
Tomsick, John A., Kumar, Snehaa Ganesh, Coughenour, Benjamin M., Shaw, Aarran W., Mukai, Koji, Hare, Jeremy, Clavel, Maica, Krivonos, Roman, Fornasini, Francesca M., Gerber, Julian, Joens, Alyson
Cataclysmic variables (CVs) are binary systems consisting of a white dwarf (WD) accreting matter from a companion star. Observations of CVs provide an opportunity to learn about accretion disks, the physics of compact objects, classical novae, and th
Externí odkaz:
http://arxiv.org/abs/2306.04691
Autor:
Coughenour, Benjamin M., Tomsick, John A., Mastroserio, Guglielmo, Steiner, James M., Connors, Riley M. T., Jiang, Jiachen, Hare, Jeremy, Shaw, Aarran W., Ludlam, Renee M., Fabian, A. C., García, Javier, Coley, Joel B.
The transient black hole X-ray binary MAXI J1803-298 was discovered on 2021 May 1, as it went into outburst from a quiescent state. As the source rose in flux it showed periodic absorption dips and fit the timing and spectral characteristics of a har
Externí odkaz:
http://arxiv.org/abs/2303.13718