Zobrazeno 1 - 10
of 296
pro vyhledávání: '"Andreoni, Igor"'
Autor:
Freeburn, James, Cooke, Jeff, Möller, Anais, Dobie, Dougal, Zhang, Jielai, Salafia, Om Sharan, Siellez, Karelle, Auchettl, Katie, Goode, Simon, Abbott, Timothy M. C., Andreoni, Igor, Allen, Rebecca, Van Bemmel, Natasha, Webb, Sara
The relativistic outflows that produce Long GRBs (LGRBs) can be described by a structured jet model where prompt $\gamma$-ray emission is restricted to a narrow region in the jet's core. Viewing the jet off-axis from the core, a population of aftergl
Externí odkaz:
http://arxiv.org/abs/2405.11949
Autor:
Ahumada, Tomás, Anand, Shreya, Coughlin, Michael W., Gupta, Vaidehi, Kasliwal, Mansi M., Karambelkar, Viraj R., Stein, Robert D., Waratkar, Gaurav, Swain, Vishwajeet, Laz, Theophile Jegou du, Anumarlapudi, Akash, Andreoni, Igor, Bulla, Mattia, Srinivasaragavan, Gokul P., Toivonen, Andrew, Wold, Avery, Bellm, Eric C., Cenko, S. Bradley, Kaplan, David L., Sollerman, Jesper, Bhalerao, Varun, Perley, Daniel, Salgundi, Anirudh, Suresh, Aswin, Hinds, K-Ryan, Reusch, Simeon, Necker, Jannis, Cook, David O., Pletskova, Natalya, Singer, Leo P., Banerjee, Smaranika, Barna, Tyler, Copperwheat, Christopher M., Healy, Brian, Kiendrebeogo, R. Weizmann, Kumar, Harsh, Kumar, Ravi, Pezzella, Marianna, Sagues-Carracedo, Ana, Sravan, Niharika, Bloom, Joshua S., Chen, Tracy X., Graham, Matthew, Helou, George, Laher, Russ R., Mahabal, Ashish A., Purdum, Josiah, Anupama, G. C., Barway, Sudhanshu, Basu, Judhajeet, Raman, Dhananjay, Roychowdhury, Tamojeet
During the first half of the fourth observing run (O4a) of the International Gravitational Wave Network (IGWN), the Zwicky Transient Facility (ZTF) conducted a systematic search for kilonova (KN) counterparts to binary neutron star (BNS) and neutron
Externí odkaz:
http://arxiv.org/abs/2405.12403
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:
Barna, Tyler, Reed, Brandon, Andreoni, Igor, Coughlin, Michael W., Dietrich, Tim, Groom, Steven L., Laz, Theophile Jegou du, Pang, Peter T. H, Purdum, Josiah N., Rusholme, Ben
The identification of extragalactic fast optical transients (eFOTs) as potential multi-messenger sources is one of the main challenges in time-domain astronomy. However, recent developments have allowed for probes of rapidly-evolving transients. With
Externí odkaz:
http://arxiv.org/abs/2404.17515
Autor:
Ragosta, Fabio, Ahumada, Tomas, Piranomonte, Silvia, Andreoni, Igor, Melandri, Andrea, Colombo, Alberto, Coughlin, Michael W.
The up-coming Vera Rubin Observatory's Legacy Survey of Space and Time (LSST) opens a new opportunity to rapidly survey the southern Sky at optical wavelenghts (\ie ugrizy bands). In this study, we aim to test the possibility of using LSST observatio
Externí odkaz:
http://arxiv.org/abs/2403.14016
Autor:
Das, Kaustav K., Fremling, Christoffer, Kasliwal, Mansi M., Schulze, Steve, Sollerman, Jesper, Karambelkar, Viraj, Rose, Sam, Anand, Shreya, Andreoni, Igor, Aubert, Marie, Brennan, Sean J., Cenko, S. Bradley, Coughlin, Michael W., O'Connor, B., De, Kishalay, Fuller, Jim, Graham, Matthew, Hammerstein, Erica, Haynie, Annastasia, Hinds, K-Ryan, Kleiser, Io, Kulkarni, S. R., Lin, Zeren, Liu, Chang, Mahabal, Ashish A., Martin, Christopher, Miller, Adam A., Neill, James D., Perley, Daniel A., Pessi, Priscila J., Prusinski, Nikolaus Z., Purdum, Josiah, Ravi, Vikram, Rusholme, Ben, Wu, Samantha, Wold, Avery, Yan, Lin
We present SN 2023zaw $-$ a sub-luminous ($\mathrm{M_r} = -16.7$ mag) and rapidly-evolving supernova ($\mathrm{t_{1/2,r}} = 4.9$ days), with the lowest nickel mass ($\approx0.002$ $\mathrm{M_\odot}$) measured among all stripped-envelope supernovae di
Externí odkaz:
http://arxiv.org/abs/2403.08165
Autor:
Perley, Daniel A., Ho, Anna Y. Q., Fausnaugh, Michael, Lamb, Gavin P., Kasliwal, Mansi M., Ahumada, Tomas, Anand, Shreya, Andreoni, Igor, Bellm, Eric, Bhalerao, Varun, Bolin, Bryce, Brink, Thomas G., Burns, Eric, Cenko, S. Bradley, Corsi, Alessandra, Filippenko, Alexei V., Frederiks, Dmitry, Goldstein, Adam, Hamburg, Rachel, Jayaraman, Rahul, Jonker, Peter G., Kool, Erik C., Kulkarni, Shrinivas, Kumar, Harsh, Laher, Russ, Levan, Andrew, Lysenko, Alexandra, Perley, Richard A., Ricker, George R., Riddle, Reed, Ridnaia, Anna, Rusholme, Ben, Smith, Roger, Svinkin, Dmitry, Ulanov, Mikhail, Waratkar, Gaurav, Yao, Yuhan
Classical gamma-ray bursts (GRBs) have two distinct emission episodes: prompt emission from ultra-relativistic ejecta and afterglow from shocked circumstellar material. While both components are extremely luminous in known GRBs, a variety of scenario
Externí odkaz:
http://arxiv.org/abs/2401.16470
Autor:
Trigg, Aaron C., Burns, Eric, Roberts, Oliver J., Negro, Michela, Svinkin, Dmitry S., Baring, Matthew G., Wadiasingh, Zorawar, Christensen, Nelson L., Andreoni, Igor, Briggs, Michael S., Di Lalla, Niccolo, Frederiks, Dmitry D., Lipunov, Vladimir M., Omodei, Nicola, Ridnaia, Anna V., Veres, Peter, Lysenko, Alexandra L.
Magnetars are slowly rotating neutron stars that possess the strongest magnetic fields ($10^{14}-10^{15} \mathrm{G}$) known in the cosmos. They display a range of transient high-energy electromagnetic activity. The brightest and most energetic of the
Externí odkaz:
http://arxiv.org/abs/2311.09362
Autor:
Colombo, Alberto, Duqué, Raphaël, Salafia, Om Sharan, Broekgaarden, Floor S., Iacovelli, Francesco, Mancarella, Michele, Andreoni, Igor, Gabrielli, Francesco, Ragosta, Fabio, Ghirlanda, Giancarlo, Fragos, Tassos, Levan, Andrew J., Piranomonte, Silvia, Melandri, Andrea, Giacomazzo, Bruno, Colpi, Monica
Publikováno v:
A&A 686, A265 (2024)
The existence of merging black hole-neutron star (BHNS) binaries has been ascertained through the observation of their gravitational wave (GW) signals. However, to date, no definitive electromagnetic (EM) emission has been confidently associated with
Externí odkaz:
http://arxiv.org/abs/2310.16894
Autor:
Srinivasaragavan, Gokul P., Swain, Vishwajeet, O'Connor, Brendan M., Anand, Shreya, Ahumada, Tomás, Perley, Daniel A., Stein, Robert, Sollerman, Jesper, Fremling, Christoffer, Cenko, S. Bradley, Antier, Sarah, Guessoum, Nidhal, Hussenot-Desenonges, Thomas, Hello, Patrice, Lesage, Stephen, Hammerstein, Erica, Miller, M. Coleman, Andreoni, Igor, Bhalerao, Varun, Bloom, Joshua S., Dutta, Anirban, Gal-Yam, Avishay, Hinds, K-Ryan, Jaodand, Amruta D., Kasliwal, Mansi M., Kumar, Harsh, Kutyrev, Alexander, Ragosta, Fabio, Ravi, Vikram, Sharma, Kritti, Teja, Rishabh S., Yang, Sheng, Anupama, G. C., Bellm, Eric C., Coughlin, Michael W., Mahabal, Ashish A., Masci, Frank J., Pathak, Utkarsh, Purdum, Josiah, Roberts, Oliver J., Smith, Roger, Wold, Avery
We report observations of the optical counterpart of the long gamma-ray burst (LGRB) GRB 230812B, and its associated supernova (SN) SN 2023pel. The proximity ($z = 0.36$) and high energy ($E_{\gamma, \rm{iso}} \sim 10^{53}$ erg) make it an important
Externí odkaz:
http://arxiv.org/abs/2310.14397