Zobrazeno 1 - 10
of 2 663
pro vyhledávání: '"CHAKRABORTY, J."'
Autor:
O'Connor, B., Pasham, D., Andreoni, I., Hare, J., Beniamini, P., Troja, E., Ricci, R., Dobie, D., Chakraborty, J., Ng, M., Klingler, N., Karambelkar, V., Rose, S., Schulze, S., Ryan, G., Dichiara, S., Monageng, I., Buckley, D., Hu, L., Srinivasaragavan, G., Bruni, G., Cabrera, T., Cenko, S. B., van Eerten, H., Freeburn, J., Hammerstein, E., Kasliwal, M., Kouveliotou, C., Kunnumkai, K., Leung, J. K., Lien, A., Palmese, A., Sakamoto, T.
We present the results of our multi-wavelength (X-ray to radio) follow-up campaign of the Einstein Probe transient EP240408a. The initial 10 s trigger displayed bright soft X-ray (0.5-4 keV) radiation with peak luminosity $L_\textrm{X} \gtrsim 10^{49
Externí odkaz:
http://arxiv.org/abs/2410.21622
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:
Kosec, P., Kara, E., Brenneman, L., Chakraborty, J., Giustini, M., Miniutti, G., Pinto, C., Rogantini, D., Arcodia, R., Middleton, M., Sacchi, A.
Quasi-periodic eruptions (QPEs) are high-amplitude, soft X-ray bursts recurring every few hours, associated with supermassive black holes. Many interpretations for QPEs were proposed since their recent discovery in 2019, including extreme mass ratio
Externí odkaz:
http://arxiv.org/abs/2406.17105
Autor:
Arcodia, R., Linial, I., Miniutti, G., Franchini, A., Giustini, M., Bonetti, M., Sesana, A., Soria, R., Chakraborty, J., Dotti, M., Kara, E., Merloni, A., Ponti, G., Vincentelli, F.
Publikováno v:
A&A 690, A80 (2024)
Quasi-periodic eruptions (QPEs) are repeated X-ray flares from galactic nuclei. Despite some diversity in the recurrence and amplitude of eruptions, their striking regularity has motivated theorists to associate QPEs with orbital systems. Among the k
Externí odkaz:
http://arxiv.org/abs/2406.17020
Autor:
Arcodia, R., Liu, Z., Merloni, A., Malyali, A., Rau, A., Chakraborty, J., Goodwin, A., Buckley, D., Brink, J., Gromadzki, M., Arzoumanian, Z., Buchner, J., Kara, E., Nandra, K., Ponti, G., Salvato, M., Anderson, G., Baldini, P., Grotova, I., Krumpe, M., Maitra, C., Miller-Jones, J. C. A., Ramos-Ceja, M. E.
X-ray quasi-periodic eruptions (QPEs) are a novel addition to the group of extragalactic transients. In this work, we report the discovery of two further galaxies showing QPEs, eRO-QPE3 and eRO-QPE4, with the eROSITA X-ray telescope on board the Spec
Externí odkaz:
http://arxiv.org/abs/2401.17275
Autor:
Miniutti, G., Giustini, M., Arcodia, R., Saxton, R. D., Chakraborty, J., Read, A. M., Kara, E.
Publikováno v:
A&A 674, L1 (2023)
X-ray quasi-periodic eruptions (QPEs) are intense repeating soft X-ray bursts from the nuclei of nearby galaxies. Their physical origin is still largely unconstrained, and several theoretical models have been proposed to date. We present here results
Externí odkaz:
http://arxiv.org/abs/2305.09717
Autor:
Chandan, A.K., Mishra, G., Kishore, K., Bansal, G.K., Sahoo, B.K., Jena, P.S.M., Kumar, S., Rai, S.K., Saha, R., Kundu, S., Chakraborty, J.
Publikováno v:
In Materials Characterization December 2023 206 Part B
The energy-momentum localization for a new four-dimensional and spherically symmetric, charged black hole solution that through a coupling of general relativity with non-linear electrodynamics is everywhere non-singular while it satisfies the weak en
Externí odkaz:
http://arxiv.org/abs/1906.01977
Publikováno v:
In Journal of Alloys and Compounds 10 March 2022 896
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