Zobrazeno 1 - 10
of 3 420
pro vyhledávání: '"Tsuna"'
Autor:
Nayana, A. J., Margutti, Raffaella, Wiston, Eli, Chornock, Ryan, Campana, Sergio, Laskar, Tanmoy, Murase, Kohta, Krips, Melanie, Migliori, Giulia, Tsuna, Daichi, Alexander, Kate D., Chandra, Poonam, Bietenholz, Michael, Berger, Edo, Chevalier, Roger A., De Colle, Fabio, Dessart, Luc, Diesing, Rebecca, Grefenstette, Brian W., Jacobson-Galan, Wynn V., Maeda, Keiichi, Marcote, Benito, Matthews, David, Milisavljevic, Dan, Ray, Alak K., Reguitti, Andrea, Polzin, Ava
We present the results from our extensive hard-to-soft X-ray (NuSTAR, Swift-XRT, XMM-Newton, Chandra) and meter-to-mm wave radio (GMRT, VLA, NOEMA) monitoring campaign of the very nearby (d $=6.9$ Mpc) Type II SN2023ixf spanning $\approx$ 4--165 d po
Externí odkaz:
http://arxiv.org/abs/2411.02647
Failed supernovae (SNe), which are likely the main channel for forming stellar-mass black holes, are predicted to accompany mass ejections much weaker than typical core-collapse SNe. We conduct a grid of one-dimensional radiation hydrodynamical simul
Externí odkaz:
http://arxiv.org/abs/2410.07055
Autor:
Schulze, Steve, Gal-Yam, Avishay, Dessart, Luc, Miller, Adam A., Woosley, Stan E., Yang, Yi, Bulla, Mattia, Yaron, Ofer, Sollerman, Jesper, Filippenko, Alexei V., Hinds, K-Ryan, Perley, Daniel A., Tsuna, Daichi, Lunnan, Ragnhild, Sarin, Nikhil, Brennan, Sean J., Brink, Thomas G., Bruch, Rachel J., Chen, Ping, Das, Kaustav K., Dhawan, Suhail, Fransson, Claes, Fremling, Christoffer, Gangopadhyay, Anjasha, Irani, Ido, Jerkstrand, Anders, Knezevic, Nikola, Kushnir, Doron, Maeda, Keiichi, Maguire, Kate, Ofek, Eran, Omand, Conor M. B., Qin, Yu-Jing, Sharma, Yashvi, Sit, Tawny, Srinivasaragavan, Gokul P., Strothjohann, Nora L., Takei, Yuki, Waxman, Eli, Yan, Lin, Yao, Yuhan, Zheng, WeiKang, Zimmerman, Erez A., Bellm, Eric C., Coughlin, Michael W., Masci, Frank. J., Purdum, Josiah, Rigault, Mickael, Wold, Avery, Kulkarni, Shrinivas R.
The cores of stars are the cosmic furnaces where light elements are fused into heavier nuclei. The fusion of hydrogen to helium initially powers all stars. The ashes of the fusion reactions are then predicted to serve as fuel in a series of stages, e
Externí odkaz:
http://arxiv.org/abs/2409.02054
Autor:
Pellegrino, C., Modjaz, M., Takei, Y., Tsuna, D., Newsome, M., Pritchard, T., Baer-Way, R., Bostroem, K. A., Chandra, P., Charalampopoulos, P., Dong, Y., Farah, J., Howell, D. A., McCully, C., Mohamed, S., Gonzalez, E. Padilla, Terreran, G.
Type Ibn supernovae (SNe Ibn) are rare stellar explosions powered primarily by interaction between the SN ejecta and H-poor, He-rich material lost by their progenitor stars. Multi-wavelength observations, particularly in the X-rays, of SNe Ibn constr
Externí odkaz:
http://arxiv.org/abs/2407.18291
Publikováno v:
The Open Journal of Astrophysics, Volume 7 (2024)
Binary mass transfer can occur at high rates due to rapid expansion of the donor's envelope. In the case where mass transfer is unstable, the binary can rapidly shrink its orbit and lead to a merger. In this work we consider the appearance of the sys
Externí odkaz:
http://arxiv.org/abs/2406.12472
Electromagnetic observations reveal that almost all galaxies have supermassive black holes (SMBHs) at their centers, but their properties, especially their spins, are not fully understood. Some of the authors have recently shown [Oshita and Tsuna (20
Externí odkaz:
http://arxiv.org/abs/2403.12380
Autor:
Fuller, Jim, Tsuna, Daichi
Publikováno v:
The Open Journal of Astrophysics, Volume 7 (2024)
The mass loss mechanism of red supergiant stars is not well understood, even though it has crucial consequences for their stellar evolution and the appearance of supernovae that occur upon core-collapse. We argue that outgoing shock waves launched ne
Externí odkaz:
http://arxiv.org/abs/2405.21049
The natal kick velocity distribution for black holes (BHs) is unknown regardless of its importance for understanding the BH formation process. Gravitational microlensing is a unique tool for studying the distribution of BHs in our Galaxy, and the fir
Externí odkaz:
http://arxiv.org/abs/2405.07502
Autor:
Dong, Yize, Tsuna, Daichi, Valenti, Stefano, Sand, David J., Andrews, Jennifer E., Bostroem, K. Azalee, Hosseinzadeh, Griffin, Hoang, Emily, Jha, Saurabh W., Janzen, Daryl, Jencson, Jacob E., Lundquist, Michael, Mehta, Darshana, Ravi, Aravind P., Retamal, Nicolas E. Meza, Pearson, Jeniveve, Shrestha, Manisha, Bonanos, Alceste, Howell, D. Andrew, Smith, Nathan, Farah, Joseph, Hiramatsu, Daichi, Itagaki, Koichi, McCully, Curtis, Newsome, Megan, Gonzalez, Estefania Padilla, Paraskeva, Emmanouela N., Pellegrino, Craig, Terreran, Giacomo, Haislip, Joshua, Kouprianov, Vladimir, Reichart, Daniel E.
We present photometric and spectroscopic observations of SN 2023fyq, a type Ibn supernova in the nearby galaxy NGC 4388 (D$\simeq$18~Mpc). In addition, we trace long-standing precursor emission at the position of SN 2023fyq using data from DLT40, ATL
Externí odkaz:
http://arxiv.org/abs/2405.04583
Autor:
Takei, Yuki, Tsuna, Daichi
Some hydrogen-poor (Type Ibc) supernovae (SNe) are known to have massive circumstellar matter (CSM) that are well detached from the star. Using the open-source code CHIPS, we construct a grid of models of SN Ibc interacting with detached CSM. We find
Externí odkaz:
http://arxiv.org/abs/2404.02566