Zobrazeno 1 - 10
of 1 552
pro vyhledávání: '"van Velzen P"'
Autor:
Goodwin, A. J., Mummery, A., Laskar, T., Alexander, K. D., Anderson, G. E., Bietenholz, M., Bonnerot, C., Christy, C. T., Golay, W., Lu, W., Margutti, R., Miller-Jones, J. C. A., Ramirez-Ruiz, E., Saxton, R., van Velzen, S.
We present the discovery of a second radio flare from the tidal disruption event (TDE) AT2020vwl via long-term monitoring radio observations. Late-time radio flares from TDEs are being discovered more commonly, with many TDEs showing radio emission 1
Externí odkaz:
http://arxiv.org/abs/2410.18665
Autor:
Mummery, Andrew, van Velzen, Sjoert
We reproduce the luminosity functions of the early-time peak optical luminosity, the late-time UV plateau luminosity, and the peak X-ray luminosity of tidal disruption events, using an entirely first-principles theoretical approach. We do this by fir
Externí odkaz:
http://arxiv.org/abs/2410.17087
Autor:
Ward, Charlotte, Melchior, Peter, Sampson, Matt L., Burke, Colin J., Siegel, Jared, Remy, Benjamin, Birmingham, Sufia, Ramey, Emily, van Velzen, Sjoert
Many science cases for wide-field time-domain surveys rely on accurate identification and characterization of the galaxies hosting transient and variable objects. In the era of the Legacy Survey of Space and Time (LSST) at the Vera C. Rubin Observato
Externí odkaz:
http://arxiv.org/abs/2409.15427
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:
Veres, Patrik Milán, Franckowiak, Anna, van Velzen, Sjoert, Adebahr, Bjoern, Taziaux, Sam, Necker, Jannis, Stein, Robert, Kier, Alexander, Mueller, Ancla, Bomans, Dominik J., Jordana-Mitjans, Nuria, Kowalski, Marek, Hammerstein, Erica, Marci-Boehncke, Elena, Reusch, Simeon, Garrappa, Simone, Rose, Sam, Das, Kaustav Kashyap
Context. To date, three nuclear transients have been associated with high-energy neutrino events. These transients are generally thought to be powered by tidal disruptions of stars (TDEs) by massive black holes. However, AT2019aalc, hosted in a Seyfe
Externí odkaz:
http://arxiv.org/abs/2408.17419
Autor:
Pessi, P. J., Lunnan, R., Sollerman, J., Schulze, S., Gkini, A., Gangopadhyay, A., Yan, L., Gal-Yam, A., Perley, D. A., Chen, T. -W., Hinds, K. R., Brennan, S. J., Hu, Y., Singh, A., Andreoni, I., Cook, D. O., Fremling, C., Ho, A. Y. Q., Sharma, Y., van Velzen, S., Wold, A., Bellm, E. C., Bloom, J. S., Graham, M. J., Kasliwal, M. M., Kulkarni, S. R., Riddle, R., Rusholme, B.
Hydrogen-rich superluminous supernovae (SLSNe II) are rare. The exact mechanism producing their extreme light curve peaks is not understood. Analysis of single events and small samples suggest that CSM interaction is the main responsible for their fe
Externí odkaz:
http://arxiv.org/abs/2408.15086
Statistical analyses based on the spatial correlation between the sky maps of Gravitational Wave (GW) events and the positions of potential host environments are a powerful tool to infer the origin of the black hole binary mergers that have been dete
Externí odkaz:
http://arxiv.org/abs/2407.21568
The volumetric rate of tidal disruption events (TDEs) encodes information on the still-unknown demographics of central massive black holes (MBHs) in low-mass galaxies ($\lesssim 10^9$~M$_\odot$). Theoretical TDE rates from model galaxy samples can ex
Externí odkaz:
http://arxiv.org/abs/2407.10911
Autor:
Necker, Jannis, Graikou, Eleni, Kowalski, Marek, Franckowiak, Anna, Nordin, Jakob, Pernice, Teresa, van Velzen, Sjoert, Veres, Patrik M.
Context: Observations of transient emission from extreme accretion events onto supermassive black holes can reveal conditions in the center of galaxies and the black hole itself. Most recently, they have been suggested to be emitters of high-energy n
Externí odkaz:
http://arxiv.org/abs/2407.01039
The primary formation channel for the stellar-mass Binary Black Holes which have been detected merging by the LIGO-Virgo-KAGRA (LVK) collaboration is yet to be discerned. One of the main obstacles is that such Gravitational Wave (GW) events are not i
Externí odkaz:
http://arxiv.org/abs/2405.05318