Zobrazeno 1 - 10
of 3 659
pro vyhledávání: '"Minguez P"'
Autor:
Mínguez, Raúl, Minondo, Asier
This paper documents a new feature of international trade: the increase in the number of low-value transactions. Using Spanish data, we show that the share of low-value transactions in the total number of transactions increased from 9% to 61% in expo
Externí odkaz:
http://arxiv.org/abs/2407.15509
Autor:
Moore, Thomas, Gillanders, James, Nicholl, Matt, Huber, Mark, Smartt, Stephen, Srivastav, Shubham, Stevance, Heloise, Chen, Ting-Wan, Chambers, Kenneth, Anderson, Joseph, Fulton, Michael, Oates, Samantha, Angus, Charlotte, Pignata, Giuliano, Erasmus, Nicolas, Gao, Hua, Bulger, Joanna, Lin, Chien-Cheng, Lowe, Thomas, Magnier, Eugene, Minguez, Paloma, Ngeow, Chow-Choong, Sheng, Xinyue, Sim, Stuart A., Smith, Ken, Wainscoat, Richard, Yang, Sheng, Young, David, Zeng, Kuang-Jie
Most stripped envelope supernova progenitors are formed through binary interaction, losing hydrogen and/or helium from their outer layers. An emerging class of supernovae with the highest degree of envelope-stripping are thought to be the product of
Externí odkaz:
http://arxiv.org/abs/2405.13596
Autor:
Tucker, Michael A., Hinkle, Jason, Angus, Charlotte R., Auchettl, Katie, Hoogendam, Willem B., Shappee, Benjamin, Kochanek, Christopher S., Ashall, Chris, de Boer, Thomas, Chambers, Kenneth C., Desai, Dhvanil D., Do, Aaron, Fulton, Michael D., Gao, Hua, Herman, Joanna, Huber, Mark, Lidman, Chris, Lin, Chien-Cheng, Lowe, Thomas B., Magnier, Eugene A., Martin, Bailey, Minguez, Paloma, Nicholl, Matt, Pursiainen, Miika, Smartt, S. J., Smith, Ken W., Srivastav, Shubham, Tucker, Brad E., Wainscoat, Richard J.
We present extensive observations of the Type II supernova (SN II) 2023ufx which is likely the most metal-poor SN II observed to-date. It exploded in the outskirts of a low-metallicity ($Z_{\rm host} \sim 0.1~Z_\odot$) dwarf ($M_g = -13.23\pm0.15$~ma
Externí odkaz:
http://arxiv.org/abs/2405.00113
Autor:
Gillanders, J. H., Rhodes, L., Srivastav, S., Carotenuto, F., Bright, J., Huber, M. E., Stevance, H. F., Smartt, S. J., Chambers, K. C., Chen, T. -W., Fender, R., Andersson, A., Cooper, A. J., Jonker, P. G., Cowie, F. J., deBoer, T., Erasmus, N., Fulton, M. D., Gao, H., Herman, J., Lin, C. -C., Lowe, T., Magnier, E. A., Miao, H. -Y., Minguez, P., Moore, T., Ngeow, C. -C., Nicholl, M., Pan, Y. -C., Pignata, G., Rest, A., Sheng, X., Smith, I. A., Smith, K. W., Tonry, J. L., Wainscoat, R. J., Weston, J., Yang, S., Young, D. R.
Fast X-ray Transients (FXTs) are extragalactic bursts of soft X-rays first identified >10 years ago. Since then, nearly 40 events have been discovered, although almost all of these have been recovered from archival Chandra and XMM-Newton data. To dat
Externí odkaz:
http://arxiv.org/abs/2404.10660
The long-lived and optically addressable high-spin state of the negatively charged silicon vacancy ($\mathrm{V_{Si}}$) in silicon carbide makes it a promising system for applications in quantum technologies. Most studies of its spin dynamics have bee
Externí odkaz:
http://arxiv.org/abs/2404.07915
Publikováno v:
Phys. Rev. D 109, 106009 (2024)
Recently, there has been a growing interest in investigating homogeneous but anisotropic spacetimes owing to their relation with nonrotating, uncharged black hole interiors. We present a description of axial perturbations for a massless scalar field
Externí odkaz:
http://arxiv.org/abs/2402.08307
Autor:
Rovirola, Marc, Khaliq, Muhammad Waqas, Gustafson, Travis, Sosa, Fiona, Casals, Blai, Hernàndez, Joan Manel, Ruiz-Gómez, Sandra, Niño, Miguel Angel, Aballe, Lucía, Hernández-Mínguez, Alberto, Foerster, Michael, Macià, Ferran
We use surface acoustic waves of 1 and 3 GHz in hybrid piezoelectric-magnetic systems with either cobalt or nickel as a magnetic layer to generate magnetoacoustic waves and directly image them using stroboscopic X-ray magnetic circular dichroism imag
Externí odkaz:
http://arxiv.org/abs/2312.15269
Autor:
García-Martín, Eduardo, Granados-Miralles, Cecilia, Ruiz-Gómez, Sandra, Pérez, Lucas, del Campo, Adolfo, Guzmán-Mínguez, Jesús Carlos, Fernández, César de Julián, Quesada, Adrián, Fernández, José F., Serrano, Aida
Publikováno v:
J. Alloys Compd. 917 (2022)165531
The use of rare-earth-based permanent magnets is one of the critical points for the development of the current technology. On the one hand, industry of the rare-earths is highly polluting due to the negative environmental impact of their extraction a
Externí odkaz:
http://arxiv.org/abs/2309.16038
Autor:
Granados-Miralles, C., Serrano, A., Prieto, P., Guzmán-Mínguez, J., Prieto, J. E., Friedel, A. M., García-Martín, E., Fernández, J. F., Quesada, A.
Publikováno v:
J. Eur. Ceram. Soc. 43 (2023) 3351-3359
Owing to their multiple applications, lithium ferrites are relevant materials for several emerging technologies. For instance, LiFeO2 has been spotted as an alternative cathode material in Li-ion batteries, while LiFe5O8 is the lowest damping ferrite
Externí odkaz:
http://arxiv.org/abs/2309.14377
Publikováno v:
Ceram. Int. 47 (2021) 31765-31771
With an annual production amounting to 800 kilotons, ferrite magnets constitute the largest family of permanent magnets in volume, a demand that will only increase as a consequence of the rare-earth crisis. With the global goal of building a climate-
Externí odkaz:
http://arxiv.org/abs/2309.15860