Zobrazeno 1 - 10
of 2 186
pro vyhledávání: '"O′Brien, John T."'
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:
Kwok, Lindsey A., Siebert, Matthew R., Johansson, Joel, Jha, Saurabh W., Blondin, Stephane, Dessart, Luc, Foley, Ryan J., Hillier, D. John, Larison, Conor, Pakmor, Ruediger, Temim, Tea, Andrews, Jennifer E., Auchettl, Katie, Badenes, Carles, Barna, Barnabas, Bostroem, K. Azalee, Newman, Max J. Brenner, Brink, Thomas G., Bustamante-Rosell, Maria Jose, Camacho-Neves, Yssavo, Clocchiatti, Alejandro, Coulter, David A., Davis, Kyle W., Deckers, Maxime, Dimitriadis, Georgios, Dong, Yize, Farah, Joseph, Filippenko, Alexei V., Flors, 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, Cesar, Sand, David J., Schwab, Michaela, Shahbandeh, Melissa, Shrestha, Manisha, Smith, Nathan, Strolger, Louis-Gregory, Szalai, Tamas, Taggart, Kirsty, Terreran, Giacomo, Terwel, Jacco H., Tinyanont, Samaporn, Valenti, Stefano, Vinko, Jozsef, Wheeler, J. Craig, Yang, Yi, Zheng, WeiKang, Ashall, Chris, DerKacy, James M., Galbany, Lluis, Hoeflich, Peter, de Jaeger, Thomas, Lu, Jing, Maund, Justyn, Medler, Kyle, Morrell, Nidia, Shappee, Benjamin J., Stritzinger, Maximilian, Suntzeff, Nicholas, Tucker, Michael, Wang, Lifan
Publikováno v:
The Astrophysical Journal, Volume 966, Issue 1, id.135, 18 pp., May 2024
We present an analysis of ground-based and JWST observations of SN~2022pul, a peculiar "03fg-like" (or "super-Chandrasekhar") Type Ia supernova (SN Ia), in the nebular phase at 338d post explosion. Our combined spectrum continuously covers 0.4--14 $\
Externí odkaz:
http://arxiv.org/abs/2308.12450
Autor:
O'Brien, John T., Kerzendorf, Wolfgang E., Fullard, Andrew, Pakmor, Reudiger, Buchner, Johannes, Vogl, Christian, Chen, Nutan, van der Smagt, Patrick, Williamson, Marc, Singhal, Jaladh
Type Ia supernovae remain poorly understood despite decades of investigation. Massive computationally intensive hydrodynamic simulations have been developed and run to model an ever-growing number of proposed progenitor channels. Further complicating
Externí odkaz:
http://arxiv.org/abs/2306.08137
Autor:
Camacho-Neves, Yssavo, Jha, Saurabh W., Barna, Barnabas, Dai, Mi, Filippenko, Alexei V., Foley, Ryan J., Hosseinzadeh, Griffin, Howell, D. Andrew, Johansson, Joel, Kelly, Patrick, Kerzendorf, Wolfgang E., Kwok, Lindsey A., Larison, Conor, Magee, Mark R., McCully, Curtis, O'Brien, John T., Pan, Yen-Chen, Pandya, Viraj, Singhal, Jaladh, Stahl, Benjamin E., Szalai, Tamás, Wieber, Meredith, Williamson, Marc
Publikováno v:
2023, ApJ, 951, 67
Type Iax supernovae (SN Iax) are the largest known class of peculiar white dwarf supernovae, distinct from normal Type Ia supernovae (SN Ia). The unique properties of SN Iax, especially their strong photospheric lines out to extremely late times, all
Externí odkaz:
http://arxiv.org/abs/2302.03105
Autor:
Kwok, Lindsey A., Jha, Saurabh W., Temim, Tea, Fox, Ori D., Larison, Conor, Camacho-Neves, Yssavo, Newman, Max J. Brenner, Pierel, Justin D. R., Foley, Ryan J., Andrews, Jennifer E., Badenes, Carles, Barna, Barnabas, Bostroem, K. Azalee, Deckers, Maxime, Flors, Andreas, Garnavich, Peter, Graham, Melissa L., Graur, Or, Hosseinzadeh, Griffin, Howell, D. Andrew, Hughes, John P., Johansson, Joel, Kendrew, Sarah, Kerzendorf, Wolfgang E., Maeda, Keiichi, Maguire, Kate, McCully, Curtis, O'Brien, John T., Rest, Armin, Sand, David J., Shahbandeh, Melissa, Strolger, Louis-Gregory, Szalai, Tamas, Ashall, Chris, Baron, E., Burns, Chris R., DerKacy, James M., Evans, Tyco Mera, Fisher, Alec, Galbany, Lluis, Hoeflich, Peter, Hsiao, Eric, de Jaeger, Thomas, Karamehmetoglu, Emir, Krisciunas, Kevin, Kumar, Sahana, Lu, Jing, Maund, Justyn, Mazzali, Paolo A., Medler, Kyle, Morrell, Nidia, Phillips, Mark. M., Shappee, Benjamin J., Stritzinger, Maximilian, Suntzeff, Nicholas, Telesco, Charles, Tucker, Michael, Wang, Lifan
Publikováno v:
ApJL, Volume 944 L3, 2023
We present JWST near- and mid-infrared spectroscopic observations of the nearby normal Type Ia supernova SN 2021aefx in the nebular phase at $+255$ days past maximum light. Our Near Infrared Spectrograph (NIRSpec) and Mid Infrared Instrument (MIRI) o
Externí odkaz:
http://arxiv.org/abs/2211.00038
Autor:
Pakmor, R., Callan, F. P., Collins, C. E., de Mink, S. E., Holas, A., Kerzendorf, W. E., Kromer, M., Neunteufel, P. G., O'Brien, John T., Roepke, F. K., Ruiter, A. J., Seitenzahl, I. R., Shingles, Luke J., Sim, S. A., Taubenberger, S.
The progenitor systems and explosion mechanism of Type Ia supernovae are still unknown. Currently favoured progenitors include double-degenerate systems consisting of two carbon-oxygen white dwarfs with thin helium shells. In the double-detonation sc
Externí odkaz:
http://arxiv.org/abs/2203.14990
Autor:
Fullard, Andrew G., O'Brien, John T., Kerzendorf, Wolfgang E., Shrestha, Manisha, Hoffman, Jennifer L., Ignace, Richard, van der Smagt, Patrick
Understanding the evolution of massive binary stars requires accurate estimates of their masses. This understanding is critically important because massive star evolution can potentially lead to gravitational wave sources such as binary black holes o
Externí odkaz:
http://arxiv.org/abs/2202.10262
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
Publikováno v:
In Ageing Research Reviews February 2024 94
Autor:
Kucikova, Ludmila, Kalabizadeh, Hoda, Motsi, Kimberly Gamuchirai, Rashid, Sidrah, O’Brien, John T., Taylor, John-Paul, Su, Li
Publikováno v:
In Ageing Research Reviews January 2024 93