Zobrazeno 1 - 10
of 1 719
pro vyhledávání: '"J. Larsson"'
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 15, Iss 9, Pp 2193-2208 (2023)
Since each rock joint is unique by nature, the utilization of replicas in direct shear testing is required to carry out experimental parameter studies. However, information about the ability of the replicas to simulate the shear mechanical behavior o
Externí odkaz:
https://doaj.org/article/fc340735e1ec4867a65280297e60bd8f
Publikováno v:
Journal of Rock Mechanics and Geotechnical Engineering, Vol 15, Iss 9, Pp 2209-2223 (2023)
Each rock joint is unique by nature which means that utilization of replicas in direct shear tests is required in experimental parameter studies. However, a method to acquire knowledge about the ability of the replicas to imitate the shear mechanical
Externí odkaz:
https://doaj.org/article/6cd1e1660e68471b87e7f2fd53989f9e
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 1, p 125 (2024)
The supernova remnant (SNR) 0540–69.3, twin of the Crab Nebula, offers an excellent opportunity to study the continuum emission from a young pulsar and pulsar wind nebula (PWN). We present observations taken with the Very Large Telescope instrument
Externí odkaz:
https://doaj.org/article/8d8c7cd8430542c7b5915665bd583485
Autor:
P. Bouchet, R. Gastaud, A. Coulais, M. J. Barlow, C. Fransson, P. J. Kavanagh, J. Larsson, T. Temim, O. C. Jones, A. S. Hirschauer, T. Tikkanen, J. A. D. L. Blommaert, O. D. Fox, A. Glasse, N. Habel, J. Hjorth, J. Jaspers, O. Krause, R. M. Lau, L. Lenkić, M. Meixner, O. Nayak, A. Rest, B. Sargent, R. Wesson, G. S. Wright, L. Colina, E. F. van Dishoeck, M. Güdel, Th. Henning, P.-O. Lagage, G. Östlin, T. P. Ray, B. Vandenbussche
Publikováno v:
The Astrophysical Journal, Vol 965, Iss 1, p 51 (2024)
There exist very few mid-infrared (IR) observations of supernovae (SNe) in general. Therefore, SN 1987A, the closest visible SN in 400 yr, gives us the opportunity to explore the mid-IR properties of SNe, the dust in their ejecta, and the surrounding
Externí odkaz:
https://doaj.org/article/523ede7d35f64fc8a49e9fd61097e41d
Autor:
J. Larsson, C. Fransson, B. Sargent, O. C. Jones, M. J. Barlow, P. Bouchet, M. Meixner, J. A. D. L. Blommaert, A. Coulais, O. D. Fox, R. Gastaud, A. Glasse, N. Habel, A. S. Hirschauer, J. Hjorth, J. Jaspers, P. J. Kavanagh, O. Krause, R. M. Lau, L. Lenkić, O. Nayak, A. Rest, T. Temim, T. Tikkanen, R. Wesson, G. S. Wright
Publikováno v:
The Astrophysical Journal Letters, Vol 949, Iss 2, p L27 (2023)
We present initial results from JWST NIRSpec integral field unit observations of the nearby supernova SN 1987A. The observations provide the first spatially resolved spectroscopy of the ejecta and equatorial ring (ER) over the 1–5 μ m range. We co
Externí odkaz:
https://doaj.org/article/4c718bd7bd004042b3c8166ca3ee0cce
Autor:
O. C. Jones, P. J. Kavanagh, M. J. Barlow, T. Temim, C. Fransson, J. Larsson, J. A. D. L. Blommaert, M. Meixner, R. M. Lau, B. Sargent, P. Bouchet, J. Hjorth, G. S. Wright, A. Coulais, O. D. Fox, R. Gastaud, A. Glasse, N. Habel, A. S. Hirschauer, J. Jaspers, O. Krause, L. Lenkić, O. Nayak, A. Rest, T. Tikkanen, R. Wesson, L. Colina, E. F. van Dishoeck, M. Güdel, Th. Henning, P.-O. Lagage, G. Östlin, T. P. Ray, B. Vandenbussche
Publikováno v:
The Astrophysical Journal, Vol 958, Iss 1, p 95 (2023)
Supernova (SN) 1987A is the nearest supernova in ∼400 yr. Using the JWST MIRI Medium Resolution Spectrograph, we spatially resolved the ejecta, equatorial ring (ER), and outer rings in the mid-infrared 12,927 days (35.4 yr) after the explosion. The
Externí odkaz:
https://doaj.org/article/32ad682312054cacb5d6830b91740247
Autor:
D. S. Sidorenko, T. Yu. Zykova, V. A. Khoroshko, G. V. Pokholkova, S. A. Demakov, J. Larsson, E. S. Belyaeva, I. F. Zhimulev
Publikováno v:
Вавиловский журнал генетики и селекции, Vol 23, Iss 2, Pp 148-153 (2019)
Polytene chromosomes of Drosophila melanogaster are a convenient model for studying interphase chromosomes of eukaryotes. They are giant in size in comparison with diploid cell chromosomes and have a pattern of cross stripes resulting from the ordere
Externí odkaz:
https://doaj.org/article/68272759eefd414184953fb16c174f2a
Autor:
Å. U. J. Bengtsson, J. C. Ekström, Xiaocui Wang, A. Jurgilaitis, Van-Thai Pham, D. Kroon, J. Larsson
Publikováno v:
Structural Dynamics, Vol 7, Iss 5, Pp 054303-054303-6 (2020)
Time-resolved optical pump/X-ray probe experiments are often used to study structural dynamics. To ensure high temporal resolution, it is necessary to monitor the timing between the X-ray pulses and the laser pulses. The transition from a crystalline
Externí odkaz:
https://doaj.org/article/762153257bbd49049069ad9547c65fdf
Autor:
Xiaocui Wang, A. Jarnac, J. C. Ekström, Å. U. J. Bengtsson, F. Dorchies, H. Enquist, A. Jurgilaitis, M. N. Pedersen, C.-M. Tu, M. Wulff, J. Larsson
Publikováno v:
Structural Dynamics, Vol 6, Iss 2, Pp 024501-024501-5 (2019)
We have studied strain wave generation in graphite induced by an intense ultrashort laser pulse. The study was performed in the intensity regime above the ablation threshold of graphite. The aim was to maximize the strain and, thus, also the internal
Externí odkaz:
https://doaj.org/article/80ad0da189bf4855ae10b07e6b9596b5
Autor:
A. Jarnac, Xiaocui Wang, Å. U. J. Bengtsson, J. C. Ekström, H. Enquist, A. Jurgilaitis, D. Kroon, A. I. H. Persson, V.-T. Pham, C. M. Tu, J. Larsson
Publikováno v:
Structural Dynamics, Vol 4, Iss 5, Pp 051102-051102-8 (2017)
We have studied an X-ray switch based on a gold coated indium antimonide crystal using time-resolved X-ray diffraction and demonstrated that the switch could reduce the pulse duration of a 100 ps X-ray pulse down to 20 ps with a peak reflectivity of
Externí odkaz:
https://doaj.org/article/df10780aeb5941e3908a272f68e9e7a3