Zobrazeno 1 - 10
of 92
pro vyhledávání: '"Bietenholz, Michael"'
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:
Cendes, Yvette, Berger, Edo, Alexander, Kate D., Chornock, Ryan, Margutti, Raffaella, Metzger, Brian, Wieringa, Mark H., Bietenholz, Michael F., Hajela, Aprajita, Laskar, Tanmoy, Stroh, Michael C., Terreran, Giacomo
Publikováno v:
The Astrophysical Journal, Volume 971, Number 2, 2024
We present radio observations of 23 optically discovered tidal disruption events (TDEs) on timescales of 500-3200 days post discovery. We detect nine new TDEs that did not have detectable radio emission at earlier times, indicating a late-time bright
Externí odkaz:
http://arxiv.org/abs/2308.13595
Autor:
Bietenholz, Michael F., Bartel, Norbert, Dwarkadas, Vikram V., Mtshweni, Leon, Orquera-Rojas, Carlos, Ellingsen, Simon, Horiuchi, Shinji, Tzioumis, Anastasios
We present broadband radio flux-density measurements supernova (SN) 1996cr, made with MeerKAT, ATCA and ALMA, and images made from very long baseline interferometry (VLBI) observations with the Australian Long Baseline Array. The spectral energy dist
Externí odkaz:
http://arxiv.org/abs/2210.16895
Autor:
Goodwin, Adelle J., Miller-Jones, James, van Velzen, Sjoert, Bietenholz, Michael, Greenland, Jasper, Cenko, Brad, Gezari, Suvi, Horesh, Assaf, Sivakoff, Gregory R., Yan, Lin, Yu, Wen-fei, Zhang, Xian
Tidal disruption events (TDEs) occur when a star passes too close to a supermassive black hole and is destroyed by tidal gravitational forces. Radio observations of TDEs trace synchrotron emission from outflowing material that may be ejected from the
Externí odkaz:
http://arxiv.org/abs/2208.13967
Autor:
Cendes, Yvette, Berger, Edo, Alexander, Kate, Gomez, Sebastian, Hajela, Aprajita, Chornock, Ryan, Laskar, Tanmoy, Margutti, Raffaella, Metzger, Brian, Bietenholz, Michael, Brethauer, Daniel, Wieringa, Mark
We present late-time radio/millimeter (as well as optical/UV and X-ray) detections of the tidal disruption event (TDE) AT2018hyz, spanning $970 - 1300$ d after optical discovery. In conjunction with earlier deeper limits, including at $\approx 700$ d
Externí odkaz:
http://arxiv.org/abs/2206.14297
Autor:
Brethauer, Daniel, Margutti, Raffaella, Milisavljevic, Danny, Bietenholz, Michael F., Chornock, Ryan, Coppejans, Deanne L., De Colle, Fabio, Hajela, Aprajita, Terreran, Giacomo, Vargas, Felipe, DeMarchi, Lindsay, Harris, Chelsea, Jacobson-Galán, Wynn V., Kamble, Atish, Patnaude, Daniel, Stroh, Michael C.
We present the results from our seven-year long broad-band X-ray observing campaign of SN\,2014C with \emph{Chandra} and \emph{NuSTAR}. These coordinated observations represent the first look at the evolution of a young extragalactic SN in the 0.3-80
Externí odkaz:
http://arxiv.org/abs/2206.00842
Autor:
DeMarchi, Lindsay, Margutti, R., Dittman, J., Brunthaler, A., Milisavljevic, D., Bietenholz, Michael F., Stauffer, C., Brethauer, D., Coppejans, D., Auchettl, K., Alexander, K. D., Kilpatrick, C. D., Bright, Joe S., Kelley, L. Z., Stroh, Michael C., Jacobson-Galan, W. V.
We present extensive multi-frequency VLA and VLBA observations of the radio-bright supernova (SN) IIb SN 2004C that span $\sim(40-2793)$ days post-explosion. We interpret the temporal evolution of the radio spectral energy distribution (SED) in the c
Externí odkaz:
http://arxiv.org/abs/2203.07388
Autor:
Knowles, Kenda, Manaka, Sinah M., Bietenholz, Michael F., Cotton, William D., Hilton, Matthew, Kolokythas, Konstantinos, Loubser, S. Ilani, Oozeer, Nadeem
We present results from a search for high-redshift radio galaxy (H$z$RG) candidates using 1.28 GHz data in the Abell 2751 field drawn from the MeerKAT Galaxy Cluster Legacy Survey (MGCLS). We use the H$z$RG criteria that a radio source is undetected
Externí odkaz:
http://arxiv.org/abs/2110.14986
Autor:
Bright, Joe S., Margutti, Raffaella, Matthews, David, Brethauer, Daniel, Coppejans, Deanne, Wieringa, Mark H., Metzger, Brian D., DeMarchi, Lindsay, Laskar, Tanmoy, Romero, Charles, Alexander, Kate D., Horesh, Assaf, Migliori, Giulia, Chornock, Ryan, Berger, E., Bietenholz, Michael, Devlin, Mark J., Dicker, Simon R., Jacobson-Galán, W. V., Mason, Brian S., Milisavljevic, Dan, Motta, Sara E., Mroczkowski, Tony, Ramirez-Ruiz, Enrico, Rhodes, Lauren, Sarazin, Craig L., Sfaradi, Itai, Sievers, Jonathan
We present deep X-ray and radio observations of the Fast Blue Optical Transient (FBOT) AT2020xnd/ZTF20acigmel at $z=0.2433$ from $13$d to $269$d after explosion. AT2020xnd belongs to the category of optically luminous FBOTs with similarities to the a
Externí odkaz:
http://arxiv.org/abs/2110.05514
Autor:
Bietenholz, Michael F., Bartel, Norbert, Kamble, Atish, Margutti, Raffaella, Matthews, David Jacob, Milisavljevic, Danny
We report on new Very Long Baseline Interferometry radio measurements of supernova 2014C in the spiral galaxy NGC 7331, made with the European VLBI Network ~5 yr after the explosion, as well as on flux density measurements made with the Jansky Very L
Externí odkaz:
http://arxiv.org/abs/2012.12049