Zobrazeno 1 - 10
of 243
pro vyhledávání: '"van Velzen, Sjoert"'
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:
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
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
Autor:
Christy, Collin T., Alexander, Kate D., Cendes, Yvette, Chornock, Ryan, Laskar, Tanmoy, Margutti, Raffaella, Berger, Edo, Bietenholz, Michael, Coppejans, Deanne, De Colle, Fabio, Eftekhari, Tarraneh, Holoien, Thomas W. -S., Matsumoto, Tatsuya, Miller-Jones, James C. A., Ramirez-Ruiz, Enrico, Saxton, Richard, van Velzen, Sjoert, Wieringa, Mark
We present detailed radio observations of the tidal disruption event (TDE) ASASSN-19bt/AT2019ahk, obtained with the Australia Telescope Compact Array (ATCA), the Atacama Large Millimeter/submillimeter Array (ALMA), and the MeerKAT radio telescopes, s
Externí odkaz:
http://arxiv.org/abs/2404.12431
Autor:
Pasham, Dheeraj R., Tombesi, Francesco, Sukova, Petra, Zajacek, Michal, Rakshit, Suvendu, Coughlin, Eric, Kosec, Peter, Karas, Vladimir, Masterson, Megan, Mummery, Andrew, Holoien, Thomas W. -S., Guolo, Muryel, Hinkle, Jason, Ripperda, Bart, Witzany, Vojtech, Shappee, Ben, Kara, Erin, Horesh, Assaf, van Velzen, Sjoert, Sfaradi, Itai, Kaplan, David L., Burger, Noam, Murphy, Tara, Remillard, Ronald, Steiner, James F., Wevers, Thomas, Arcodia, Riccardo, Buchner, Johannes, Merloni, Andrea, Malyali, Adam, Fabian, Andy, Fausnaugh, Michael, Daylan, Tansu, Altamirano, Diego, Payne, Anna, Ferrara, E. C.
Binaries containing a compact object orbiting a supermassive black hole are thought to be precursors of gravitational wave events, but their identification has been extremely challenging. Here, we report quasi-periodic variability in X-ray absorption
Externí odkaz:
http://arxiv.org/abs/2402.10140
Autor:
Masterson, Megan, De, Kishalay, Panagiotou, Christos, Kara, Erin, Arcavi, Iair, Eilers, Anna-Christina, Frostig, Danielle, Gezari, Suvi, Grotova, Iuliia, Liu, Zhu, Malyali, Adam, Meisner, Aaron M., Merloni, Andrea, Newsome, Megan, Rau, Arne, Simcoe, Robert A., van Velzen, Sjoert
Most tidal disruption events (TDEs) are currently found in time-domain optical and soft X-ray surveys, both of which are prone to significant obscuration. The infrared (IR), however, is a powerful probe of dust-enshrouded environments, and hence, we
Externí odkaz:
http://arxiv.org/abs/2401.01403