Zobrazeno 1 - 10
of 267
pro vyhledávání: '"Torrejon J"'
Autor:
Torregrosa, Á., Rodes-Roca, J. J., Torrejón, J. M., Sanjurjo-Ferrín, G., Mihara, T., Nakajima, M., Sugizaki, M.
The bright high-mass X-ray binary GX 301-2 exhibits two periodic flare episodes along its orbit which are produced when the neutron star is close to the apastron and periastron passages. Time-resolved spectra were extracted and several models applied
Externí odkaz:
http://arxiv.org/abs/2410.03850
Autor:
Serantes, S. Reyero, Oskinova, L., Hamann, W. -R., Gómez-González, V. M., Todt, H., Pauli, D., Soria, R., Gies, D. R., Torrejón, J. M., Bulik, T., Ramachandran, V., Sander, A. A. C., Bozzo, E., Poutanen, J.
Ultra-luminous X-ray sources (ULXs) are high-mass X-ray binaries with an X-ray luminosity above $10^{39}$ erg s$^{-1}$. These ULXs can be powered by black holes that are more massive than $20M_\odot$, accreting in a standard regime, or lighter compac
Externí odkaz:
http://arxiv.org/abs/2409.12133
Autor:
Ramachandran, V., Oskinova, L. M., Hamann, W. -R., Sander, A. A. C., Todt, H., Pauli, D., Shenar, T., Torrejón, J. M., Postnov, K. A., Blondin, J. M., Bozzo, E., Hainich, R., Massa, D.
Publikováno v:
A&A 667, A77 (2022)
M33 X-7 is the only known eclipsing black hole high mass X-ray binary. The system is reported to contain a very massive O supergiant donor and a massive black hole in a short orbit. The high X-ray luminosity and its location in the metal-poor galaxy
Externí odkaz:
http://arxiv.org/abs/2208.07773
The aim of this work is to study both light curve and orbital phase spectroscopy of this source taking advantage of the MAXI/GSC observation strategy. We have investigated the spectral and light curve properties of the X-ray emission from Cen X-3 alo
Externí odkaz:
http://arxiv.org/abs/2207.11476
Autor:
Martínez-Chicharro, M., Grinberg, V., Torrejón, J. M., Schulz, N., Oskinova, L., Nowak, M., Fürst, F., Hell, N., Hainich, R.
We present an analysis of the first observation of the iconic High Mass X-ray Binary \so with the \chandra High Energy Transmission Gratings during an X-ray eclipse. The goal of the observation was to study the structure/physical conditions in the cl
Externí odkaz:
http://arxiv.org/abs/2012.11901
Autor:
Lomaeva, M., Grinberg, V., Guainazzi, M., Hell, N., Bianchi, S., Kühnel, M. Bissinger né, Fürst, F., Kretschmar, P., Martínez-Chicharro, M., Martínez-Núñez, S., Torrejón, J. M.
Publikováno v:
A&A 641, A144 (2020)
We present a $\sim$130 ks observation of the prototypical wind-accreting, high-mass X-ray binary Vela X-1 collected with XMM-Newton at orbital phases between 0.12 and 0.28. A strong flare took place during the observation that allows us to investigat
Externí odkaz:
http://arxiv.org/abs/2007.07260
Autor:
Hainich, R., Oskinova, L. M., Torrejón, J. M., Fuerst, F., Bodaghee, A., Shenar, T., Sander, A. A. C., Todt, H., Spetzer, K., Hamann, W. -R.
Publikováno v:
A&A 634, A49 (2020)
High-mass X-ray binaries (HMXBs) are exceptional astrophysical laboratories that offer a rare glimpse into the physical processes that govern accretion on compact objects, massive-star winds, and stellar evolution. In a subset of the HMXBs, the compa
Externí odkaz:
http://arxiv.org/abs/2001.02420
Autor:
Torrejon, J., Solignac, A., Chopin, C., Moulin, J., Doll, A., Paul, E., Fermon, C., Pannetier-Lecoeur, M.
Publikováno v:
Phys. Rev. Applied 13, 034031 (2020)
Vertical packaging of multiple Giant Magnetoresistance (multi-GMR) stacks is a very interesting noise reduction strategy for local magnetic sensor measurements, which has not been reported experimentally so far. Here, we have fabricated multi-GMR sen
Externí odkaz:
http://arxiv.org/abs/1911.08592
Autor:
Riou, M., Torrejon, J., Garitaine, B., Araujo, F. Abreu, Bortolotti, P., Cros, V., Tsunegi, S., Yakushiji, K., Fukushima, A., Kubota, H., Yuasa, S., Querlioz, D., Stiles, M. D., Grollier, J.
Publikováno v:
Phys. Rev. Applied 12, 024049 (2019)
The recent demonstration of neuromorphic computing with spin-torque nano-oscillators has opened a path to energy efficient data processing. The success of this demonstration hinged on the intrinsic short-term memory of the oscillators. In this study,
Externí odkaz:
http://arxiv.org/abs/1905.02695
Autor:
Riou, M., Araujo, F. Abreu, Torrejon, J., Tsunegi, S., Khalsa, G., Querlioz, D., Bortolotti, P., Cros, V., Yakushiji, K., Fukushima, A., Kubota, H., Yuasa, S., Stiles, M. D., Grollier, J.
Fabricating powerful neuromorphic chips the size of a thumb requires miniaturizing their basic units: synapses and neurons. The challenge for neurons is to scale them down to submicrometer diameters while maintaining the properties that allow for rel
Externí odkaz:
http://arxiv.org/abs/1904.11236