Zobrazeno 1 - 10
of 1 405
pro vyhledávání: '"Margutti, P."'
The precise atomic structure and therefore the wavelength-dependent opacities of lanthanides are highly uncertain. This uncertainty introduces systematic errors in modeling transients like kilonovae and estimating key properties such as mass, charact
Externí odkaz:
http://arxiv.org/abs/2408.02731
Autor:
Hajela, A., Alexander, K. D., Margutti, R., Chornock, R., Bietenholz, M., Christy, C. T., Stroh, M., Terreran, G., Saxton, R., Komossa, S., Bright, J. S., Ramirez-Ruiz, E., Coppejans, D. L., Leung, J. K., Cendes, Y., Wiston, E., Laskar, T., Horesh, A., Schroeder, G., J., Nayana A., Wieringa, M. H., Velez, N., Berger, E., Blanchard, P. K., Eftekhari, T., Gomez, S., Nicholl, M., Sears, H., Zauderer, B. A.
We present the results from an extensive follow-up campaign of the Tidal Disruption Event (TDE) ASASSN-15oi spanning $\delta t \sim 10 - 3000$ d, offering an unprecedented window into the multiwavelength properties of a TDE during its first $\approx
Externí odkaz:
http://arxiv.org/abs/2407.19019
Autor:
Schroeder, Genevieve, Fong, Wen-fai, Kilpatrick, Charles D., Escorial, Alicia Rouco, Laskar, Tanmoy, Nugent, Anya E., Rastinejad, Jillian, Alexander, Kate D., Berger, Edo, Brink, Thomas G., Chornock, Ryan, de Bom, Clecio R., Dong, Yuxin, Eftekhari, Tarraneh, Filippenko, Alexei V., Fuentes-Carvajal, Celeste, Jacobson-Galan, Wynn V., Malkan, Matthew, Margutti, Raffaella, Pearson, Jeniveve, Rhodes, Lauren, Salinas, Ricardo, Sand, David J., Santana-Silva, Luidhy, Santos, Andre, Sears, Huei, Shrestha, Manisha, Smith, Nathan, Webb, Wayne, de Wet, Simon, Yang, Yi
We present multiwavelength observations of the Swift short $\gamma$-ray burst GRB 231117A, localized to an underlying galaxy at redshift $z = 0.257$ at a small projected offset ($\sim 2~$kpc). We uncover long-lived X-ray (Chandra) and radio/millimete
Externí odkaz:
http://arxiv.org/abs/2407.13822
Autor:
Ibrahimzade, Dina, Margutti, R., Bright, J. S., Blanchard, P., Paterson, K., Lin, D., Sears, H., Polzin, A., Andreoni, I., Schroeder, G., Alexander, K. D., Berger, E., Coppejans, D. L., Hajela, A., Irwin, J., Laskar, T., Metzger, B. D., Rastinejad, J. C., Rhodes, L.
Fast X-ray Transients (FXTs) are a new observational class of phenomena with no clear physical origin. This is at least partially a consequence of limited multi-wavelength follow up of this class of transients in real time. Here we present deep optic
Externí odkaz:
http://arxiv.org/abs/2407.07257
Autor:
Follo, U., Gioachin, G., Ferrero, C., Mandurrino, M., Bregant, M., Bufalino, S., Carnesecchi, F., Cavazza, D., Colocci, M., Corradino, T., Rolo, M. Da Rocha, Di Nicolantonio, G., Durando, S., Margutti, G., Mignone, M., Nania, R., Pancheri, L., Rivetti, A., Sabiu, B., de Souza, G. G. A., Strazzi, S., Wheadon, R.
In this paper we report on a set of characterisations carried out on the first monolithic LGAD prototype integrated in a customised 110 nm CMOS process having a depleted active volume thickness of 48 $\mu$m. This prototype is formed by a pixel array
Externí odkaz:
http://arxiv.org/abs/2406.19906
Autor:
Yao, Yuhan, Guolo, Muryel, Tombesi, Francesco, Li, Ruancun, Gezari, Suvi, García, Javier A., Dai, Lixin, Chornock, Ryan, Lu, Wenbin, Kulkarni, S. R., Gendreau, Keith C., Pasham, Dheeraj R., Cenko, S. Bradley, Kara, Erin, Margutti, Raffaella, Ajay, Yukta, Wevers, Thomas, Kwan, Tom M., Andreoni, Igor, Bloom, Joshua S., Drake, Andrew J., Graham, Matthew J., Hammerstein, Erica, Laher, Russ R., LeBaron, Natalie, Mahabal, Ashish A., O'Connor, Brendan, Purdum, Josiah, Ravi, Vikram, Sears, Huei, Sharma, Yashvi, Smith, Roger, Sollerman, Jesper, Somalwar, Jean J., Wold, Avery
We present the tidal disruption event (TDE) AT2022lri, hosted in a nearby ($\approx\!144$ Mpc) quiescent galaxy with a low-mass massive black hole ($10^4\,M_\odot < M_{\rm BH} < 10^6\,M_\odot$). AT2022lri belongs to the TDE-H+He subtype. More than 1
Externí odkaz:
http://arxiv.org/abs/2405.11343
Autor:
Jacobson-Galán, W. V., Davis, K. W., Kilpatrick, C. D., Dessart, L., Margutti, R., Chornock, R., Foley, R. J., Arunachalam, P., Auchettl, K., Bom, C. R., Cartier, R., Coulter, D. A., Dimitriadis, G., Dickinson, D., Drout, M. R., Gagliano, A. T., Gall, C., Garretson, B., Izzo, L., Jones, D. O., LeBaron, N., Miao, H. -Y., Milisavljevic, D., Pan, Y. -C., Rest, A., Rojas-Bravo, C., Santos, A., Sears, H., Subrayan, B. M., Taggart, K., Tinyanont, S.
We present UV/optical/NIR observations and modeling of supernova (SN) 2024ggi, a type II supernova (SN II) located in NGC 3621 at 7.2 Mpc. Early-time ("flash") spectroscopy of SN 2024ggi within +0.8 days of discovery shows emission lines of H I, He I
Externí odkaz:
http://arxiv.org/abs/2404.19006
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:
Eftekhari, T., Tchekhovskoy, A., Alexander, K. D., Berger, E., Chornock, R., Laskar, T., Margutti, R., Yao, Y., Cendes, Y., Gomez, S., Hajela, A., Pasham, D. R.
The tidal disruption event (TDE) AT2022cmc represents the fourth known example of a relativistic jet produced by the tidal disruption of a stray star providing a unique probe of the formation and evolution of relativistic jets in otherwise dormant su
Externí odkaz:
http://arxiv.org/abs/2404.10036
Autor:
Jacobson-Galán, W. V., Dessart, L., Davis, K. W., Kilpatrick, C. D., Margutti, R., Foley, R. J., Chornock, R., Terreran, G., Hiramatsu, D., Newsome, M., Gonzalez, E. Padilla, Pellegrino, C., Howell, D. A., Filippenko, A. V., Anderson, J. P., Angus, C. R., Auchettl, K., Bostroem, K. A., Brink, T. G., Cartier, R., Coulter, D. A., de Boer, T., Drout, M. R., Earl, N., Ertini, K., Farah, J. R., Farias, D., Gall, C., Gao, H., Gerlach, M. A., Guo, F., Haynie, A., Hosseinzadeh, G., Ibik, A. L., Jha, S. W., Jones, D. O., Langeroodi, D., LeBaron, N, Magnier, E. A., Piro, A. L., Raimundo, S. I., Rest, A., Rest, S., Rich, R. Michael, Rojas-Bravo, C., Sears, H., Taggart, K., Villar, V. A., Wainscoat, R. J., Wang, X-F., Wasserman, A. R., Yan, S., Yang, Y., Zhang, J., Zheng, W.
We present ultraviolet/optical/near-infrared observations and modeling of Type II supernovae (SNe II) whose early-time ($\delta t < 2$ days) spectra show transient, narrow emission lines from shock ionization of confined ($r < 10^{15}$ cm) circumstel
Externí odkaz:
http://arxiv.org/abs/2403.02382