Zobrazeno 1 - 10
of 337
pro vyhledávání: '"Sharon Amir"'
A rare subclass of Type Ia supernovae (SNe Ia), named after the prototype SN 2003fg, includes some of the brightest SNe Ia, often called "super Chandrasekhar-mass" SNe Ia. We calculate the $\gamma$-ray deposition histories and the $^{56}$Ni mass synt
Externí odkaz:
http://arxiv.org/abs/2407.07417
Autor:
Sharon, Amir, Kushnir, Doron
Type Ia supernovae (SNe Ia) are widely believed to arise from thermonuclear explosions of white dwarfs (WDs). However, ongoing debate surrounds their progenitor systems and the mechanisms triggering these explosions. Recently, Sharon \& Kushnir showe
Externí odkaz:
http://arxiv.org/abs/2407.06859
Autor:
Kushnir, Doron, Sharon, Amir
The recent SH0ES determination of the Hubble constant, $H_0=73.04\pm1.04$ km/s/Mpc, deviates significantly by $\approx5\sigma$ from the \textit{Planck} value, stimulating discussions on cosmological model extensions. To minimize statistical uncertain
Externí odkaz:
http://arxiv.org/abs/2404.16102
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
The SH0ES collaboration Hubble constant determination is in a ${\sim}5\sigma$ difference with the $Planck$ value, known as the Hubble tension. The accuracy of the Hubble constant measured with extragalactic Cepheids depends on robust stellar-crowding
Externí odkaz:
http://arxiv.org/abs/2305.14435
Autor:
Schulze, Steve, Fransson, Claes, Kozyreva, Alexandra, Chen, Ting-Wan, Yaron, Ofer, Jerkstrand, Anders, Gal-Yam, Avishay, Sollerman, Jesper, Yan, Lin, Kangas, Tuomas, Leloudas, Giorgos, Omand, Conor M. B., Smartt, Stephen J., Yang, Yi, Nicholl, Matt, Sarin, Nikhil, Yao, Yuhan, Brink, Thomas G., Sharon, Amir, Rossi, Andrea, Chen, Ping, Chen, Zhihao, Cikota, Aleksandar, De, Kishalay, Drake, Andrew J., Filippenko, Alexei V., Fremling, Christoffer, Freour, Laurane, Fynbo, Johan P. U., Ho, Anna Y. Q., Inserra, Cosimo, Irani, Ido, Kuncarayakti, Hanindyo, Lunnan, Ragnhild, Mazzali, Paolo, Ofek, Eran O., Palazzi, Eliana, Perley, Daniel A., Pursiainen, Miika, Rothberg, Barry, Shingles, Luke J., Smith, Ken, Taggart, Kirsty, Tartaglia, Leonardo, Zheng, WeiKang, Anderson, Joseph P., Cassara, Letizia, Christensen, Eric, Djorgovski, S. George, Galbany, Lluis, Gkini, Anamaria, Graham, Matthew J., Gromadzki, Mariusz, Groom, Steven L., Hiramatsu, Daichi, Howell, D. Andrew, Kasliwal, Mansi M., McCully, Curtis, Müller-Bravo, Tomas E., Paiano, Simona, Paraskeva, Emmanouela, Pessi, Priscila J., Polishook, David, Rau, Arne, Rigault, Mickael, Rusholme, Ben
Abridged - Stars with ZAMS masses between 140 and $260 M_\odot$ are thought to explode as pair-instability supernovae (PISNe). During their thermonuclear runaway, PISNe can produce up to several tens of solar masses of radioactive nickel, resulting i
Externí odkaz:
http://arxiv.org/abs/2305.05796
Autor:
Sharon, Amir, Kushnir, Doron
Calcium-rich supernovae (Ca-rich SNe) are faint, rapidly evolving transients whose progenitor system is yet to be determined. We derive the $\gamma$-ray deposition histories of five Ca-rich SNe from the literature in order to place constraints on pos
Externí odkaz:
http://arxiv.org/abs/2212.14290
Autor:
Irani, I., Chen, Ping, Morag, Jonathan, Schulze, S., Gal-Yam, A., Strotjohann, Nora L., Yaron, Ofer, Zimmerman, E. A., Sharon, Amir, Perley, Daniel A., Sollerman, J., Tohuvavohu, Aaron, Das, Kaustav K., Kasliwal, Mansi M., Bruch, Rachel, Brink, Thomas G., Zheng, WeiKang, Patra, Kishore C., Vasylyev, Sergiy S., Filippenko, Alexei V., Yang, Yi, Graham, Matthew J., Bloom, Joshua S., Mazzali, Paolo, Purdum, Josiah, Laher, Russ R., Wold, Avery, Sharma, Yashvi, Lacroix, Leander, Medford, Michael S.
We present the discovery and analysis of SN\,2022oqm, a Type Ic supernova (SN) detected $<1$\,day after explosion. The SN rises to a blue and short-lived (2\,days) initial peak. Early-time spectral observations of SN\,2022oqm show a hot (40,000\,K) c
Externí odkaz:
http://arxiv.org/abs/2210.02554
Autor:
Sharon, Amir, Kushnir, Doron
We construct the Type Ia supernovae (SNe Ia) luminosity function (LF) using the Zwicky Transient Facility Bright Transient Survey (BTS) catalogue. While this magnitude-limited survey has an unprecedented number of objects, it suffers from large dista
Externí odkaz:
http://arxiv.org/abs/2109.06219
Autor:
Sharon, Amir, Kushnir, Doron
Type Ia supernovae (SNe Ia) are likely the thermonuclear explosions of carbon-oxygen white-dwarf stars, but their progenitor systems remain elusive. A few theoretical scenarios for the progenitor systems have been suggested, which have been shown to
Externí odkaz:
http://arxiv.org/abs/2008.13612