Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Floers, Andreas"'
Autor:
Pognan, Quentin, Wu, Meng-Ru, Martínez-Pinedo, Gabriel, da Silva, Ricardo Ferreira, Jerkstrand, Anders, Grumer, Jon, Flörs, Andreas
Neutron star (NS) mergers are known to produce heavy elements through rapid neutron capture (r-process) nucleosynthesis. Actinides are expected to be created solely by the r-process in the most neutron rich environments. Confirming if NS mergers prov
Externí odkaz:
http://arxiv.org/abs/2409.16210
Autor:
Collins, Christine E., Shingles, Luke J., Bauswein, Andreas, Sim, Stuart A., Soultanis, Theodoros, Vijayan, Vimal, Floers, Andreas, Just, Oliver, Leck, Gerrit, Lioutas, Georgios, Martínez-Pinedo, Gabriel, Sneppen, Albert, Watson, Darach, Xiong, Zewei
Recent analysis of the kilonova, AT2017gfo, has indicated that this event was highly spherical. This may challenge hydrodynamics simulations of binary neutron star mergers, which usually predict a range of asymmetries, and radiative transfer simulati
Externí odkaz:
http://arxiv.org/abs/2309.05579
Autor:
Siebert, Matthew R., Kwok, Lindsey A., Johansson, Joel, Jha, Saurabh W., Blondin, Stéphane, Dessart, Luc, Foley, Ryan J., Hillier, D. John, Larison, Conor, Pakmor, Rüdiger, Temim, Tea, Andrews, Jennifer E., Auchettl, Katie, Badenes, Carles, Barna, Barnabas, Bostroem, K. Azalee, Newman, Max J. Brenner, Brink, Thomas G., Bustamante-Rosell, María José, Camacho-Neves, Yssavo, Clocchiatti, Alejandro, Coulter, David A., Davis, Kyle W., Deckers, Maxime, Dimitriadis, Georgios, Dong, Yize, Farah, Joseph, Filippenko, Alexei V., Flörs, Andreas, Fox, Ori D., Garnavich, Peter, Gonzalez, Estefania Padilla, Graur, Or, Hambsch, Franz-Josef, Hosseinzadeh, Griffin, Howell, D. Andrew, Hughes, John P., Kerzendorf, Wolfgang E., Saux, Xavier K. Le, Maeda, Keiichi, Maguire, Kate, McCully, Curtis, Mihalenko, Cassidy, Newsome, Megan, O'Brien, John T., Pearson, Jeniveve, Pellegrino, Craig, Pierel, Justin D. R., Polin, Abigail, Rest, Armin, Rojas-Bravo, César, Sand, David J., Schwab, Michaela, Shahbandeh, Melissa, Shrestha, Manisha, Smith, Nathan, Strolger, Louis-Gregory, Szalai, Tamás, Taggart, Kirsty, Terreran, Giacomo, Terwel, Jacco H., Tinyanont, Samaporn, Valenti, Stefano, Vinkó, József, Wheeler, J. Craig, Yang, Yi, Zheng, Weikang, Ashall, Chris, Derkacy, James M., Galbany, Lluís, Hoeflich, Peter, Hsiao, Eric, De Jaeger, Thomas, Lu, Jing, Maund, Justyn, Medler, Kyle, Morrell, Nidia, Shappee, Benjamin J., Stritzinger, Maximilian, Suntzeff, Nicholas, Tucker, Michael, Wang, Lifan
Nebular-phase observations of peculiar Type Ia supernovae (SNe Ia) provide important constraints on progenitor scenarios and explosion dynamics for both these rare SNe and the more common, cosmologically useful SNe Ia. We present observations from an
Externí odkaz:
http://arxiv.org/abs/2308.12449
Autor:
Shingles, Luke J., Collins, Christine E., Vijayan, Vimal, Flörs, Andreas, Just, Oliver, Leck, Gerrit, Xiong, Zewei, Bauswein, Andreas, Martínez-Pinedo, Gabriel, Sim, Stuart A.
Publikováno v:
2023, ApJL, 954, L41
We present three-dimensional radiative transfer calculations for the ejecta from a neutron star merger that include line-by-line opacities for tens of millions of bound-bound transitions, composition from an r-process nuclear network, and time-depend
Externí odkaz:
http://arxiv.org/abs/2306.17612
Autor:
Csörnyei, Géza, Vogl, Christian, Taubenberger, Stefan, Flörs, Andreas, Blondin, Stéphane, Cudmani, Maria Gabriela, Holas, Alexander, Kressierer, Sabrina, Leibundgut, Bruno, Hillebrandt, Wolfgang
Publikováno v:
A&A 672, A129 (2023)
Context: Type II supernovae provide a direct way to estimate distances through the expanding photosphere method, which is independent of the cosmic distance ladder. A recently introduced Gaussian process-based method allows for a fast and precise mod
Externí odkaz:
http://arxiv.org/abs/2302.03112
Autor:
Blondin, Stéphane, Blinnikov, Sergei, Callan, Fionntan P., Collins, Christine E., Dessart, Luc, Even, Wesley, Flörs, Andreas, Fullard, Andrew G., Hillier, D. John, Jerkstrand, Anders, Kasen, Daniel, Katz, Boaz, Kerzendorf, Wolfgang, Kozyreva, Alexandra, O'Brien, Jack, Pássaro, Ezequiel A., Roth, Nathaniel, Shen, Ken J., Shingles, Luke, Sim, Stuart A., Singhal, Jaladh, Smith, Isaac G., Sorokina, Elena, Utrobin, Victor P., Vogl, Christian, Williamson, Marc, Wollaeger, Ryan, Woosley, Stan E., Wygoda, Nahliel
Publikováno v:
A&A 668, A163 (2022)
We present the first results of a comprehensive supernova (SN) radiative-transfer (RT) code-comparison initiative (StaNdaRT), where the emission from the same set of standardized test models is simulated by currently-used RT codes. A total of ten cod
Externí odkaz:
http://arxiv.org/abs/2209.11671
Autor:
Dong, Yize, Valenti, Stefano, Polin, Abigail, Boyle, Aoife, Flörs, Andreas, Vogl, Christian, Kerzendorf, Wolfgang, Sand, David, Jha, Saurabh, Wyrzykowski, Lukasz, Bostroem, K., Pearson, Jeniveve, McCully, Curtis, Andrew, Jennifer, Benettii, Stefano, Blondin, Stephane, Galbany, Lluís, Gromadzki, Mariusz, Hosseinzadeh, Griffin, Howell, D. Andrew, Inserra, Cosimo, Jencson, Jacob, Lundquist, M., Lyman, Joseph, Magee, Mark, Maguire, Kate, Meza, Nicolas, Srivastav, Shubham, Taubenberger, Stefan, Terwel, J, Wyatt, Samuel, Young, David
A thermonuclear explosion triggered by a helium-shell detonation on a carbon-oxygen white dwarf core has been predicted to have strong UV line blanketing at early times due to the iron-group elements produced during helium-shell burning. We present t
Externí odkaz:
http://arxiv.org/abs/2206.07065
Autor:
Shingles, Luke J., Flörs, Andreas, Sim, Stuart A., Collins, Christine E., Roepke, Friedrich K., Seitenzahl, Ivo R., Shen, Ken J.
The nebular spectra of Type Ia supernovae ($\gtrapprox$ 100 days after explosion) consist mainly of emission lines from singly- and doubly-ionised Fe-group nuclei. However, theoretical models for many scenarios predict that non-thermal ionisation lea
Externí odkaz:
http://arxiv.org/abs/2203.16561
Autor:
Barna, Barnabás, Pereira, Talytha, Taubenberger, Stefan, Magee, Mark, Kromer, Markus, Kerzendorf, Wolfgang, Vogl, Christian, Williamson, Marc E., Flörs, Andreas, Noebauer, Ulrich M., Foley, Ryan J., Sasdelli, Michele, Hillebrandt, Wolfgang
We test the adequacy of ultraviolet (UV) spectra for characterizing the outer structure of Type Ia supernova (SN) ejecta. For this purpose, we perform spectroscopic analysis for ASASSN-14lp, a normal SN Ia showing low continuum in the mid-UV regime.
Externí odkaz:
http://arxiv.org/abs/2106.09053
Autor:
O'Brien, John T., Kerzendorf, Wolfgang E., Fullard, Andrew, Williamson, Marc, Pakmor, Ruediger, Buchner, Johannes, Hachinger, Stephan, Vogl, Christian, Gillanders, James H., Floers, Andreas, van der Smagt, Patrick
Manual fits to spectral times series of Type Ia supernovae have provided a method of reconstructing the explosion from a parametric model but due to lack of information about model uncertainties or parameter degeneracies direct comparison between the
Externí odkaz:
http://arxiv.org/abs/2105.07910