Zobrazeno 1 - 10
of 478
pro vyhledávání: '"Rémillard, R."'
Autor:
Nicholl, M., Pasham, D. R., Mummery, A., Guolo, M., Gendreau, K., Dewangan, G. C., Ferrara, E. C., Remillard, R., Bonnerot, C., Chakraborty, J., Hajela, A., Dhillon, V. S., Gillan, A. F., Greenwood, J., Huber, M. E., Janiuk, A., Salvesen, G., van Velzen, S., Aamer, A., Alexander, K. D., Angus, C. R., Arzoumanian, Z., Auchettl, K., Berger, E., de Boer, T., Cendes, Y., Chambers, K. C., Chen, T. -W., Chornock, R., Fulton, M. D., Gao, H., Gillanders, J. H., Gomez, S., Gompertz, B. P., Fabian, A. C., Herman, J., Ingram, A., Kara, E., Laskar, T., Lawrence, A., Lin, C. -C., Lowe, T. B., Magnier, E. A., Margutti, R., McGee, S. L., Minguez, P., Moore, T., Nathan, E., Oates, S. R., Patra, K. C., Ramsden, P., Ravi, V., Ridley, E. J., Sheng, X., Smartt, S. J., Smith, K. W., Srivastav, S., Stein, R., Stevance, H. F., Turner, S. G. D., Wainscoat, R. J., Weston, J., Wevers, T., Young, D. R.
Quasi-periodic Eruptions (QPEs) are luminous bursts of soft X-rays from the nuclei of galaxies, repeating on timescales of hours to weeks. The mechanism behind these rare systems is uncertain, but most theories involve accretion disks around supermas
Externí odkaz:
http://arxiv.org/abs/2409.02181
Autor:
Vincentelli, F. M., Neilsen, J., Tetarenko, A. J., Cavecchi, Y., Segura, N. Castro, del Palacio, S., Eijnden, J. van den, Vasilopoulos, G., Altamirano, D., Padilla, M. Armas, Bailyn, C. D., Belloni, T., Buisson, D. J. K., Cuneo, V. A., Degenaar, N., Knigge, C., Long, K. S., Jimenez-Ibarra, F., Milburn, J., Darias, T. Muñoz, Arabaci, M. Ozbey, Remillard, R., Russell, T.
Accretion disks around compact objects are expected to enter an unstable phase at high luminosity. One instability may occur when the radiation pressure generated by accretion modifies the disk viscosity, resulting in the cyclic depletion and refilli
Externí odkaz:
http://arxiv.org/abs/2303.00020
Autor:
White, N. E., Bauer, F. E., Baumgartner, W., Bautz, M., Berger, E., Cenko, S. B., Chang, T. -C., Falcone, A., Fausey, H., Feldman, C., Fox, D., Fox, O., Fruchter, A., Fryer, C., Ghirlanda, G., Gorski, K., Grant, K., Guiriec, S., Hart, M., Hartmann, D., Hennawi, J., Kann, D. A., Kaplan, D., Kennea, A., Kocevski, D., Kouveliotou, C., Lawrence, C., Levan, A. J., Lidz, A., Lien, A., Littenberg, T. B., Mas-Ribas, L., Moss, M., O'Brien, P., O'Meara, J., Palmer, D. M., Pasham, D., Racusin, J., Remillard, R., Roberts, O. J., Roming, P., Rud, M., Salvaterra, R., Sambruna, R., Seiffert, M., Sun, G., Tanvir, N. R., Terrile, R., Thomas, N., van der Horst, A., Verstrand, W. T., Willems, P., Wilson-Hodge, C., Young, E. T., Amati, L., Bozzo, E., Karczewski, O. Ł., Hernandez-Monteagudo, C., Lopez, R. Rebolo, Genova-Santos, R., Rubino-Martin, J. A., Granot, J., Bemiamini, P., Gill, R., Burns, E.
Publikováno v:
Proc. SPIE 11821, UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XXII, 1182109 (24 August 2021)
The Gamow Explorer will use Gamma Ray Bursts (GRBs) to: 1) probe the high redshift universe (z > 6) when the first stars were born, galaxies formed and Hydrogen was reionized; and 2) enable multi-messenger astrophysics by rapidly identifying Electro-
Externí odkaz:
http://arxiv.org/abs/2111.06497
Autor:
Zhang, L., Altamirano, D., Uttley, P., Garcia, F., Mendez, M., Homan, J., Steiner, J. F., Alabarta, K., Buisson, D. J. K., Remillard, R. A., Gendreau, K. C., Arzoumanian, Z., Markwardt, C., Strohmayer, T. E., Neilsen, J., Basak, A.
We present a systematic spectral-timing analysis of a fast appearance/disappearance of a type-B quasi-periodic oscillation (QPO), observed in four NICER observations of MAXI J1348-630. By comparing the spectra of the period with and without the type-
Externí odkaz:
http://arxiv.org/abs/2105.12338
Autor:
Arcodia, R., Merloni, A., Nandra, K., Buchner, J., Salvato, M., Pasham, D., Remillard, R., Comparat, J., Lamer, G., Ponti, G., Malyali, A., Wolf, J., Arzoumanian, Z., Bogensberger, D., Buckley, D. A. H., Gendreau, K., Gromadzki, M., Kara, E., Krumpe, M., Markwardt, C., Ramos-Ceja, M. E., Rau, A., Schramm, M., Schwope, A.
Publikováno v:
Nature volume 592, pages 704-707 (2021)
Quasi-Periodic Eruptions (QPEs) are extreme high-amplitude bursts of X-ray radiation recurring every few hours and originating near the central supermassive black holes in galactic nuclei. It is currently unknown what triggers these events, how long
Externí odkaz:
http://arxiv.org/abs/2104.13388
Autor:
Buisson, D. J. K., Altamirano, D., Padilla, M. Armas, Arzoumanian, Z., Bult, P., Segura, N. Castro, Charles, P. A., Degenaar, N., Trigo, M. Díaz, Eijnden, J. van den, Fogantini, F., Gandhi, P., Gendreau, K., Hare, J., Homan, J., Knigge, C., Malacaria, C., Mendez, M., Darias, T. Muñoz, Ng, M., Arabacı, M. Özbey, Remillard, R., Strohmayer, T. E., Tombesi, F., Tomsick, J. A., Vincentelli, F., Walton, D. J.
We present the discovery of eclipses in the X-ray light curves of the X-ray binary Swift J1858.6-0814. From these, we find an orbital period of $P=76841.3_{-1.4}^{+1.3}$ s ($\approx21.3$ hours) and an eclipse duration of $t_{\rm ec}=4098_{-18}^{+17}$
Externí odkaz:
http://arxiv.org/abs/2103.12787
Autor:
Ricci, C., Loewenstein, M., Kara, E., Remillard, R., Trakhtenbrot, B., Arcavi, I., Gendreau, K. C., Arzoumanian, Z., Fabian, A. C., Li, R., Ho, L. C., MacLeod, C. L., Cackett, E., Altamirano, D., Gandhi, P., Kosec, P., Pasham, D., Steiner, J., Chan, C. -H.
1ES 1927+654 is a nearby active galactic nucleus (AGN) which underwent a changing-look event in early 2018, developing prominent broad Balmer lines which were absent in previous observations. We have followed up this object in the X-rays with an ongo
Externí odkaz:
http://arxiv.org/abs/2102.05666
Autor:
Cannizzaro, G., Wevers, T., Jonker, P. G., Pérez-Torres, M. A., Moldon, J., Mata-Sánchez, D., Leloudas, G., Pasham, D. R., Mattila, S., Arcavi, I., French, K. Decker, Onori, F., Inserra, C., Nicholl, M., Gromadzki, M., Chen, T. -W., Müller-Bravo, T. E., Short, P., Anderson, J. P., Young, D. R., Gendreau, K. C., Arzoumanian, Z., Löwenstein, M., Remillard, R., Roy, R., Hiramatsu, D.
We present the results of a large multi-wavelength follow-up campaign of the Tidal Disruption Event (TDE) \dsg, focusing on low to high resolution optical spectroscopy, X-ray, and radio observations. The galaxy hosts a super massive black hole of mas
Externí odkaz:
http://arxiv.org/abs/2012.10195
Autor:
Neilsen, J., Homan, J., Steiner, J. F., Marcel, G., Cackett, E., Remillard, R. A., Gendreau, K.
Publikováno v:
ApJ, 902, 2 (2020)
After 26 years in outburst, the black hole X-ray binary GRS 1915+105 dimmed considerably in early 2018; its flux dropped sharply in mid-2019, and it has remained faint ever since. This faint period, the "obscured state," is punctuated by occasional X
Externí odkaz:
http://arxiv.org/abs/2010.14512
Autor:
Zhang, L., Altamirano, D., Cuneo, V. A., Alabarta, K., Enoto, T., Homan, J., Remillard, R. A., Uttley, P., Vincentelli, F. M., Arzoumanian, Z., Bult, P., Gendreau, K. C., Markwardt, C., Sanna, A., Strohmayer, T. E., Steiner, J. F., Basak, A., Neilsen, J., Tombesi, F.
We studied the outburst evolution and timing properties of the recently discovered X-ray transient MAXI J1348-630 as observed with NICER. We produced the fundamental diagrams commonly used to trace the spectral evolution, and power density spectra to
Externí odkaz:
http://arxiv.org/abs/2009.07749