Zobrazeno 1 - 10
of 803
pro vyhledávání: '"Kasén A"'
Autor:
Vartanyan, David, Tsang, Benny T. H., Kasen, Daniel, Burrows, Adam, Wang, Tianshu, Teryosin, Lizzy
In order to better connect core-collapse supernovae (CCSN) theory with its observational signatures, we have developed a simulation pipeline from the onset of core collapse to beyond shock breakout. Using this framework, we present a three-dimensiona
Externí odkaz:
http://arxiv.org/abs/2411.03434
We present an integral-based technique (IBT) algorithm to accelerate supernova (SN) radiative transfer calculations. The algorithm utilizes ``integral packets'', which are calculated by the path integral of the Monte-Carlo energy packets, to synthesi
Externí odkaz:
http://arxiv.org/abs/2409.07729
The precise atomic structure and therefore the wavelength-dependent opacities of lanthanides are highly uncertain. This uncertainty introduces systematic errors in modeling transients like kilonovae and estimating key properties such as mass, charact
Externí odkaz:
http://arxiv.org/abs/2408.02731
Autor:
Coulter, D. A., Kilpatrick, C. D., Jones, D. O., Foley, R. J., Filippenko, A. V., Zheng, W., Swift, J. J., Rahman, G. S., Stacey, H. E., Piro, A. L., Rojas-Bravo, C., Vilchez, J. Anais, Muñoz-Elgueta, N., Arcavi, I., Dimitriadis, G., Siebert, M. R., Bloom, J. S., Bustamante-Rosell, M. J., Clever, K. E., Davis, K. W., Kutcka, J., Macias, P., McGill, P., Quiñonez, P. J., Ramirez-Ruiz, E., Siellez, K., Tinyanont, S., Cenko, S. B., Drout, M. R., Hausen, R., Jacobson-Galán, W. V., Howell, D. Andrew, Kasen, D., McCully, C., Rest, A., Taggart, K., Valenti, S.
We present an ultraviolet-to-infrared search for the electromagnetic (EM) counterpart to GW190425, the second-ever binary neutron star (BNS) merger discovered by the LIGO-Virgo-KAGRA Collaboration (LVK). GW190425 was more distant and had a larger loc
Externí odkaz:
http://arxiv.org/abs/2404.15441
Autor:
Blanchard, Peter K., Villar, V. Ashley, Chornock, Ryan, Laskar, Tanmoy, Li, Yijia, Leja, Joel, Pierel, Justin, Berger, Edo, Margutti, Raffaella, Alexander, Kate D., Barnes, Jennifer, Cendes, Yvette, Eftekhari, Tarraneh, Kasen, Daniel, LeBaron, Natalie, Metzger, Brian D., Page, James Muzerolle, Rest, Armin, Sears, Huei, Siegel, Daniel M., Yadavalli, S. Karthik
Identifying the astrophysical sites of the $r$-process, one of the primary mechanisms by which heavy elements are formed, is a key goal of modern astrophysics. The discovery of the brightest gamma-ray burst of all time, GRB 221009A, at a relatively n
Externí odkaz:
http://arxiv.org/abs/2308.14197
Autor:
Gottlieb, Ore, Issa, Danat, Jacquemin-Ide, Jonatan, Liska, Matthew, Foucart, Francois, Tchekhovskoy, Alexander, Metzger, Brian D., Quataert, Eliot, Perna, Rosalba, Kasen, Daniel, Duez, Matthew D., Kidder, Lawrence E., Pfeiffer, Harald P., Scheel, Mark A.
We present the first numerical simulations that track the evolution of a black hole-neutron star (BH-NS) merger from pre-merger to $r\gtrsim10^{11}\,{\rm cm}$. The disk that forms after a merger of mass ratio $q=2$ ejects massive disk winds ($3-5\tim
Externí odkaz:
http://arxiv.org/abs/2306.14947
Autor:
Gottlieb, Ore, Issa, Danat, Jacquemin-Ide, Jonatan, Liska, Matthew, Tchekhovskoy, Alexander, Foucart, Francois, Kasen, Daniel, Perna, Rosalba, Quataert, Eliot, Metzger, Brian D.
The ongoing LIGO-Virgo-KAGRA observing run O4 provides an opportunity to discover new multi-messenger events, including binary neutron star (BNS) mergers such as GW170817, and the highly anticipated first detection of a multi-messenger black hole-neu
Externí odkaz:
http://arxiv.org/abs/2306.14946
Autor:
Jørgensen, Tollef Emil, Kåsen, Andre
This paper presents a merged collection of entity and coreference annotated data grounded in the Universal Dependencies (UD) treebanks for the two written forms of Norwegian: Bokm{\aa}l and Nynorsk. The aligned and converted corpora are the Norwegian
Externí odkaz:
http://arxiv.org/abs/2305.13527
Autor:
Khatami, David, Kasen, Daniel
The interaction of supernova ejecta with a surrounding circumstellar medium (CSM) generates a strong shock which can convert the ejecta kinetic energy into observable radiation. Given the diversity of potential CSM structures (arising from diverse ma
Externí odkaz:
http://arxiv.org/abs/2304.03360
Norwegian Twitter data poses an interesting challenge for Natural Language Processing (NLP) tasks. These texts are difficult for models trained on standardized text in one of the two Norwegian written forms (Bokm{\aa}l and Nynorsk), as they contain b
Externí odkaz:
http://arxiv.org/abs/2210.06150