Zobrazeno 1 - 10
of 494
pro vyhledávání: '"Mazzali, Paolo A"'
Autor:
Bhirombhakdi, Kornpob, Fruchter, Andrew S., Levan, Andrew J., Pian, Elena, Mazzali, Paolo, Izzo, Luca, Kangas, Tuomas, Benetti, Stefano, Medler, Kyle, Tanvir, Nial
The nearby long gamma-ray burst (GRB) 190829A was observed using the HST/WFC3/IR grisms about four weeks to 500 days after the burst. We find the spectral features of its associated supernova, SN 2019oyw, are redshifted by several thousands km/s comp
Externí odkaz:
http://arxiv.org/abs/2410.09372
Autor:
Larison, Conor, Pierel, Justin D. R., Newman, Max J. B., Jha, Saurabh W., Gilman, Daniel, Hayes, Erin E., Agrawal, Aadya, Arendse, Nikki, Birrer, Simon, Bronikowski, Mateusz, Della Costa, John M., Coulter, David A., Courbin, Frédéric, Chakrabarti, Sukanya, Diego, Jose M., Dhawan, Suhail, Goobar, Ariel, Gall, Christa, Hjorth, Jens, Huang, Xiaosheng, Mao, Shude, Marques-Chaves, Rui, Mazzali, Paolo A., More, Anupreeta, Moustakas, Leonidas A., Pérez-Fournon, Ismael, Petrushevska, Tanja, Poidevin, Frédérick, Rest, Armin, Shajib, Anowar J., Shirley, Raphael, Sheu, William, Strolger, Louis-Gregory, Suyu, Sherry H., Treu, Tommaso, Zenati, Yossef
Strongly lensed supernovae (SNe) are a rare class of transient that can offer tight cosmological constraints that are complementary to methods from other astronomical events. We present a follow-up study of one recently-discovered strongly lensed SN,
Externí odkaz:
http://arxiv.org/abs/2409.17239
Autor:
Gall, Christa, Hjorth, Jens, Christensen, Lise, Izzo, Luca, Mazzali, Paolo A., Phillips, Mark M., Hoeflich, Peter, Angus, Charlotte, Cold, Cecilie, Selsing, Jonathan
The origin of strong sodium absorption, which has been observed for a few nearby Type Ia supernovae (SNe Ia), remains elusive. Here we analyse two high-signal-to-noise, intermediate-resolution VLT/X-shooter spectra at epochs $+$18 and $+$27 days past
Externí odkaz:
http://arxiv.org/abs/2406.11539
H-poor superluminous supernovae (SLSNe-I) are characterized by O II lines around 4,000 - 4,500 A in pre-/near-maximum spectra, so-called W-shaped O II lines. As these lines are from relatively high excitation levels, they have been considered a sign
Externí odkaz:
http://arxiv.org/abs/2404.03112
Observations of Type Ia supernovae (SNe\,Ia) reveal diversity, even within assumed subcategories. Here, the composition of the peculiar iPTF16abc (SN\,2016bln) is derived by modeling a time series of optical spectra. iPTF16abc's early spectra combine
Externí odkaz:
http://arxiv.org/abs/2403.12043
Autor:
Elias-Rosa, Nancy, Brennan, Seán J., Benetti, Stefano, Cappellaro, Enrico, Pastorello, Andrea, Kozyreva, Alexandra, Lundqvist, Peter, Fraser, Morgan, Anderso, Joseph P., Cai, Yong-Zhi, Chen, Ting-Wan, Dennefeld, Michel, Gromadzki, Mariusz, Gutiérrez, Claudia P., Ihanec, Nada, Inserra, Cosimo, Kankare, Erkki, Kotak, Rubina, Mattila, Seppo, Moran, Shane, Müller-Bravo, Tomás E., Pessi, Priscila J., Pignata, Giuliano, Reguitti, Andrea, Reynolds, Thomas M., Smartt, Stephen J., Smith, Ken, Tartaglia, Leonardo, Valerin, Giorgio, de Boer, Thomas, Chambers, Kenneth, Gal-Yam, Avishay, Gao, Hua, Geier, Stefan, Mazzali, Paolo A., Nicholl, Matt, Ragosta, Fabio, Rest, Armin, Yaron, Ofer, Young, David R.
Publikováno v:
A&A 686, A13 (2024)
We present photometric and spectroscopic data sets for SN 2020pvb, a Type IIn-P supernova (SN) similar to SNe 1994W, 2005cl, 2009kn and 2011ht, with a precursor outburst detected (PS1 w-band ~ -13.8 mag) around four months before the B-band maximum l
Externí odkaz:
http://arxiv.org/abs/2402.02924
Autor:
Ferrari, Lucía, Folatelli, Gastón, Kuncarayakti, Hanindyo, Stritzinger, Maximilian, Maeda, Keiichi, Bersten, Melina, Aguilar, Lili M. Román, Sáez, M. Manuela, Dessart, Luc, Lundqvist, Peter, Mazzali, Paolo, Nagao, Takashi, Ashall, Chris, Bose, Subhash, Brennan, Seán J., Cai, Yongzhi, Handberg, Rasmus, Holmbo, Simon, Karamehmetoglu, Emir, Pastorello, Andrea, Reguitti, Andrea, Anderson, Joseph, Chen, Ting-Wan, Galbany, Lluís, Gromadzki, Mariusz, Gutiérrez, Claudia P., Inserra, Cosimo, Kankare, Erkki, Bravo, Tomás E. Müller, Mattila, Seppo, Nicholl, Matt, Pignata, Giuliano, Sollerman, Jesper, Srivastav, Shubham, Young, David R.
Publikováno v:
MNRAS Letters, 529, L33 (2024)
We present observational evidence of late-time interaction between the ejecta of the hydrogen-poor Type Ib supernova (SN) 2019yvr and hydrogen-rich circumstellar material (CSM), similar to the Type Ib SN 2014C. A narrow H{\alpha} emission line appear
Externí odkaz:
http://arxiv.org/abs/2401.15052
Autor:
Fiore, Achille, Benetti, Stefano, Tartaglia, Leonardo, Jerkstrand, Anders, Salmaso, Irene, Tomasella, Lina, Morales-Garoffolo, Antonia, Geier, Stefan, Elias-Rosa, Nancy, Cappellaro, Enrico, Wang, Xiaofeng, Mo, Jun, Chen, Zhihao, Yan, Shengyu, Pastorello, Andrea, Mazzali, Paolo A., Ciolfi, Riccardo, Cai, Yongzhi, Fraser, Morgan, Gutiérrez, Claudia P., Karamehmetoglu, Emir, Kuncarayakti, Hanindyo, Moran, Shane, Ochner, Paolo, Reguitti, Andrea, Reynolds, Thomas M., Valerin, Giorgio
SN 2019neq was a very fast evolving superluminous supernova. At a redshift z=0.1059, its peak absolute magnitude was -21.5+/-0.2 mag in g band. In this work, we present data and analysis from an extensive spectrophotometric follow-up campaign using m
Externí odkaz:
http://arxiv.org/abs/2311.13940
Autor:
Chen, Ping, Gal-Yam, Avishay, Sollerman, Jesper, Schulze, Steve, Post, Richard S., Liu, Chang, Ofek, Eran O., Das, Kaustav K., Fremling, Christoffer, Horesh, Assaf, Katz, Boaz, Kushnir, Doron, Kasliwal, Mansi M., Kulkarni, Shri R., Liu, Dezi, Liu, Xiangkun, Miller, Adam A., Rose, Kovi, Waxman, Eli, Yang, Sheng, Yao, Yuhan, Zackay, Barak, Bellm, Eric C., Dekany, Richard, Drake, Andrew J., Fang, Yuan, Fynbo, Johan P. U., Groom, Steven L., Helou, George, Irani, Ido, Laz, Theophile Jegou du, Liu, Xiaowei, Mazzali, Paolo A., Neill, James D., Qin, Yu-Jing, Riddle, Reed L., Sharon, Amir, Strotjohann, Nora L., Wold, Avery, Yan, Lin
Neutron stars and stellar-mass black holes are the remnants of massive star explosions. Most massive stars reside in close binary systems, and the interplay between the companion star and the newly formed compact object has been theoretically explore
Externí odkaz:
http://arxiv.org/abs/2310.07784
Autor:
Aamer, Aysha, Nicholl, Matt, Jerkstrand, Anders, Gomez, Sebastian, Oates, Samantha R., Smartt, Stephen J., Srivastav, Shubham, Leloudas, Giorgos, Anderson, Joseph P., Berger, Edo, de Boer, Thomas, Chambers, Kenneth, Chen, Ting-Wan, Galbany, Lluís, Gao, Hua, Gompertz, Benjamin P., González-Bañuelos, Maider, Gromadzki, Mariusz, Gutiérrez, Claudia P., Inserra, Cosimo, Lowe, Thomas B., Magnier, Eugene A., Mazzali, Paolo A., Moore, Thomas, Müller-Bravo, Tomás E., Pursiainen, Miika, Rest, Armin, Schulze, Steve, Smith, Ken W., Terwel, Jacco H., Wainscoat, Richard, Young, David R.
Publikováno v:
Volume 527, (2024), Pages 11970-11995
We present a detailed study on SN2019szu, a Type I superluminous supernova at $z=0.213$, that displayed unique photometric and spectroscopic properties. Pan-STARRS and ZTF forced photometry shows a pre-explosion plateau lasting $\sim$ 40 days. Unlike
Externí odkaz:
http://arxiv.org/abs/2307.02487