Zobrazeno 1 - 10
of 4 952
pro vyhledávání: '"H, Hartmann"'
Autor:
Günther H. Hartmann, Hans G. Menzel
Publikováno v:
Zeitschrift für Medizinische Physik, Vol 34, Iss 3, Pp 468-476 (2024)
Purpose: The Type A standard uncertainty in Monte Carlo (MC) dose calculations is usually determined using the “history by history” method. Its applicability is based on the assumption that the central limit theorem (CLT) can be applied such that
Externí odkaz:
https://doaj.org/article/50a6e8b8a41a4c4498ded3037338b3f4
Autor:
M. D. Mahecha, A. Bastos, F. J. Bohn, N. Eisenhauer, H. Feilhauer, T. Hickler, H. Kalesse‐Los, M. Migliavacca, F. E. L. Otto, J. Peng, S. Sippel, I. Tegen, A. Weigelt, M. Wendisch, C. Wirth, D. Al‐Halbouni, H. Deneke, D. Doktor, S. Dunker, G. Duveiller, A. Ehrlich, A. Foth, A. García‐García, C. A. Guerra, C. Guimarães‐Steinicke, H. Hartmann, S. Henning, H. Herrmann, P. Hu, C. Ji, T. Kattenborn, N. Kolleck, M. Kretschmer, I. Kühn, M. L. Luttkus, M. Maahn, M. Mönks, K. Mora, M. Pöhlker, M. Reichstein, N. Rüger, B. Sánchez‐Parra, M. Schäfer, F. Stratmann, M. Tesche, B. Wehner, S. Wieneke, A. J. Winkler, S. Wolf, S. Zaehle, J. Zscheischler, J. Quaas
Publikováno v:
Earth's Future, Vol 12, Iss 6, Pp n/a-n/a (2024)
Abstract Climate extremes are on the rise. Impacts of extreme climate and weather events on ecosystem services and ultimately human well‐being can be partially attenuated by the organismic, structural, and functional diversity of the affected land
Externí odkaz:
https://doaj.org/article/7574663b126941bc8431c494ab4f4cb8
Publikováno v:
Zeitschrift für Medizinische Physik, Vol 32, Iss 4, Pp 417-427 (2022)
Purpose: Simulation of absorbed dose deposition in a detector is one of the key tasks of Monte Carlo (MC) dosimetry methodology. Recent publications (Hartmann and Zink, 2018; Hartmann and Zink, 2019; Hartmann et al., 2021) have shown that knowledge o
Externí odkaz:
https://doaj.org/article/2770b7514caf450cae1eb56054c0c95b
Autor:
Nikita S. Khatiya, Margot Boughelilba, Christopher M. Karwin, Alex McDaniel, Xiurui Zhao, Marco Ajello, Anita Reimer, Dieter H. Hartmann
Publikováno v:
The Astrophysical Journal, Vol 971, Iss 1, p 84 (2024)
FR0 galaxies constitute the most abundant jet population in the local Universe. With their compact jet structure, they are broadband photon emitters and have been proposed as multimessenger sources. Recently, these sources have been detected for the
Externí odkaz:
https://doaj.org/article/979fc29f68dc4019aa6b56af5098c4a8
Autor:
J. C. Rastinejad, W. Fong, A. J. Levan, N. R. Tanvir, C. D. Kilpatrick, A. S. Fruchter, S. Anand, K. Bhirombhakdi, S. Covino, J. P. U. Fynbo, G. Halevi, D. H. Hartmann, K. E. Heintz, L. Izzo, P. Jakobsson, T. Kangas, G. P. Lamb, D. B. Malesani, A. Melandri, B. D. Metzger, B. Milvang-Jensen, E. Pian, G. Pugliese, A. Rossi, D. M. Siegel, P. Singh, G. Stratta
Publikováno v:
The Astrophysical Journal, Vol 968, Iss 1, p 14 (2024)
The existence of a secondary (in addition to compact object mergers) source of heavy element ( r -process) nucleosynthesis, the core-collapse of rapidly rotating and highly magnetized massive stars, has been suggested by both simulations and indirect
Externí odkaz:
https://doaj.org/article/ac19908e354a449e8321b26e9d6c7bf6
Autor:
Y. Sheng, M. Rajagopal, A. Kaur, M. Ajello, A. Domínguez, A. Rau, S. B. Cenko, J. Greiner, D. H. Hartmann, I. Cox, S. Joffre, C. Karwin, A. McDaniel, R. Silver, N. Torres-Albà
Publikováno v:
The Astrophysical Journal, Vol 964, Iss 1, p 63 (2024)
BL Lacertae (BL Lac) objects are a subclass of blazar, distinguished by their featureless optical spectrum. The featureless spectrum presents a challenge in measuring the redshift of the BL Lacs. In this paper, we measure the redshift of BL Lacs usin
Externí odkaz:
https://doaj.org/article/7153b66b699c4db4b9c8d1f62aa9e009
Autor:
Haille M. L. Perkins, John Ellis, Brian D. Fields, Dieter H. Hartmann, Zhenghai Liu, Gail C. McLaughlin, Rebecca Surman, Xilu Wang
Publikováno v:
The Astrophysical Journal, Vol 961, Iss 2, p 170 (2024)
Binary neutron star mergers produce high-energy emissions from several physically different sources, including a gamma-ray burst (GRB) and its afterglow, a kilonova (KN), and, at late times, a remnant many parsecs in size. Ionizing radiation from the
Externí odkaz:
https://doaj.org/article/352c59a007524cbe816e72d17e45b1e3
Publikováno v:
Biogeosciences, Vol 19, Pp 3727-3738 (2022)
Carbon allocation in vegetation is an important process in the terrestrial carbon cycle; it determines the fate of photoassimilates, and it has an impact on the time carbon spends in the terrestrial biosphere. Although previous studies have highlight
Externí odkaz:
https://doaj.org/article/6c0824e32ebf46cdb9057b3d181a5330
Autor:
A. J. Levan, G. P. Lamb, B. Schneider, J. Hjorth, T. Zafar, A. de Ugarte Postigo, B. Sargent, S. E. Mullally, L. Izzo, P. D’Avanzo, E. Burns, J. F. Agüí Fernández, T. Barclay, M. G. Bernardini, K. Bhirombhakdi, M. Bremer, R. Brivio, S. Campana, A. A. Chrimes, V. D’Elia, M. Della Valle, M. De Pasquale, M. Ferro, W. Fong, A. S. Fruchter, J. P. U. Fynbo, N. Gaspari, B. P. Gompertz, D. H. Hartmann, C. L. Hedges, K. E. Heintz, K. Hotokezaka, P. Jakobsson, D. A. Kann, J. A. Kennea, T. Laskar, E. Le Floc’h, D. B. Malesani, A. Melandri, B. D. Metzger, S. R. Oates, E. Pian, S. Piranomonte, G. Pugliese, J. L. Racusin, J. C. Rastinejad, M. E. Ravasio, A. Rossi, A. Saccardi, R. Salvaterra, B. Sbarufatti, R. L. C. Starling, N. R. Tanvir, C. C. Thöne, A. J. van der Horst, S. D. Vergani, D. Watson, K. Wiersema, R. A. M. J. Wijers, Dong Xu
Publikováno v:
The Astrophysical Journal Letters, Vol 946, Iss 1, p L28 (2023)
We present James Webb Space Telescope (JWST) and Hubble Space Telescope (HST) observations of the afterglow of GRB 221009A, the brightest gamma-ray burst (GRB) ever observed. This includes the first mid-IR spectra of any GRB, obtained with JWST/Near
Externí odkaz:
https://doaj.org/article/e0b6ea15557a457382411275e35f81e1
Autor:
Maia A. Williams, Jamie A. Kennea, S. Dichiara, Kohei Kobayashi, Wataru B. Iwakiri, Andrew P. Beardmore, P. A. Evans, Sebastian Heinz, Amy Lien, S. R. Oates, Hitoshi Negoro, S. Bradley Cenko, Douglas J. K. Buisson, Dieter H. Hartmann, Gaurava K. Jaisawal, N. P. M. Kuin, Stephen Lesage, Kim L. Page, Tyler Parsotan, Dheeraj R. Pasham, B. Sbarufatti, Michael H. Siegel, Satoshi Sugita, George Younes, Elena Ambrosi, Zaven Arzoumanian, M. G. Bernardini, S. Campana, Milvia Capalbi, Regina Caputo, Antonino D’Aì, P. D’Avanzo, V. D’Elia, Massimiliano De Pasquale, R. A. J. Eyles-Ferris, Elizabeth Ferrara, Keith C. Gendreau, Jeffrey D. Gropp, Nobuyuki Kawai, Noel Klingler, Sibasish Laha, A. Melandri, Tatehiro Mihara, Michael Moss, Paul O’Brien, Julian P. Osborne, David M. Palmer, Matteo Perri, Motoko Serino, E. Sonbas, Michael Stamatikos, Rhaana Starling, G. Tagliaferri, Aaron Tohuvavohu, Silvia Zane, Houri Ziaeepour
Publikováno v:
The Astrophysical Journal Letters, Vol 946, Iss 1, p L24 (2023)
We report the discovery of the unusually bright long-duration gamma-ray burst (GRB), GRB 221009A, as observed by the Neil Gehrels Swift Observatory (Swift), Monitor of All-sky X-ray Image, and Neutron Star Interior Composition Explorer Mission. This
Externí odkaz:
https://doaj.org/article/aa9d3e5a4bc34e409787ec5c05c1c17c