Zobrazeno 1 - 10
of 501 581
pro vyhledávání: '"and Smith, D."'
Autor:
Silcock, M. S., Curtis-Lake, E., Smith, D. J. B., Wallace, I. E. B., Vidal-García, A., Plat, A., Hirschmann, M., Feltre, A., Chevallard, J., Charlot, S., Carniani, S., Bunker, A. J.
The presence of Active Galactic Nuclei (AGN) in low mass (Mstar $\lesssim$ $10^{9}$ Msun) galaxies at high redshift has been established, and it is important to characterise these objects and the impact of their feedback on the host galaxies. In this
Externí odkaz:
http://arxiv.org/abs/2410.18193
Autor:
Drake, A. B., Smith, D. J. B., Hardcastle, M. J., Best, P. N., Kondapally, R., Arnaudova, M. I., Das, S., Shenoy, S., Duncan, K. J., Röttgering, H. J. A., Tasse, C.
We present an analysis of 152,355 radio sources identified in the second data release of the LOFAR Two Metre Sky Survey (LoTSS-DR2) with Sloan Digital Sky Survey (SDSS) spectroscopic redshifts in the range 0.00 < z < 0.57. Using Monte Carlo simulatio
Externí odkaz:
http://arxiv.org/abs/2409.11465
Autor:
Ruz, J., Todarello, E., Vogel, J. K., Giannotti, M., Grefenstette, B., Hudson, H. S., Hannah, I. G., Irastorza, I. G., Kim, C. S., O'Shea, T., Regis, M., Smith, D. M., Taoso, M., Bueno, J. Trujillo
The nature of dark matter in the Universe is still an open question in astrophysics and cosmology. Axions and axion-like particles (ALPs) offer a compelling solution, and traditionally ground-based experiments have eagerly, but to date unsuccessfully
Externí odkaz:
http://arxiv.org/abs/2407.03828
Autor:
Bichang'a, B., Kaviraj, S., Lazar, I., Jackson, R. A., Das, S., Smith, D. J. B., Watkins, A. E., Martin, G.
Given their dominance of the galaxy number density, dwarf galaxies are central to our understanding of galaxy formation. While the incidence of AGN and their impact on galaxy evolution has been extensively studied in massive galaxies, much less is kn
Externí odkaz:
http://arxiv.org/abs/2406.11962
Autor:
Ali, S., Allison, P., Archambault, S., Beatty, J. J., Besson, D. Z., Bishop, A., Chen, P., Chen, Y. C., Clark, B. A., Clay, W., Connolly, A., Couberly, K., Cremonesi, L., Cummings, A., Dasgupta, P., Debolt, R., de Kockere, S., de Vries, K. D., Deaconu, C., DuVernois, M. A., Flaherty, J., Friedman, E., Gaior, R., Giri, P., Hanson, J., Harty, N., Hoffman, K. D., Huang, J. J., Huang, M. -H., Hughes, K., Ishihara, A., Karle, A., Kelley, J. L., Kim, K. -C., Kim, M. -C., Kravchenko, I., Krebs, R., Kuo, C. Y., Kurusu, K., Latif, U. A., Liu, C. H, Liu, T. C., Luszczak, W., Mase, K., Muzio, M. S., Nam, J., Nichol, R. J., Novikov, A., Nozdrina, A., Oberla, E., Pan, Y., Pfendner, C., Punsuebsay, N., Roth, J., Salcedo-Gomez, A., Seckel, D., Seikh, M. F. H., Shaio, Y. -S., Smith, D., Toscano, S., Torres, J., Touart, J., van Eijndhoven, N., Vieregg, A., Wang, M. -Z., Wang, S. -H., Wissel, S. A., Xie, C., Yoshida, S., Young, R.
We develop an in-situ index of refraction profile using the transit time of radio signals broadcast from an englacial transmitter to 2-5 km distant radio-frequency receivers, deployed at depths up to 200 m. Maxwell's equations generally admit two ray
Externí odkaz:
http://arxiv.org/abs/2406.00857
Autor:
Ljubownikow, Sergej
Publikováno v:
Voluntas: International Journal of Voluntary and Nonprofit Organizations, 2020 Aug 01. 31(4), 828-829.
Externí odkaz:
https://www.jstor.org/stable/48734212
Autor:
Robertson, C., Holwerda, B., Young, J., Keel, W., Berkheimer, J., Cook, K., Conselice, C., Frye, B., Grogin, N., Koekemoer, A., Nasr, C., Patel, D., Roemer, W., Smith, D., Windhorst, R.
The Balmer decrement (H$\alpha$/H$\beta$) provides a constraint on attenuation, the cumulative effects of dust grains in the ISM. The ratio is a reliable spectroscopic tool for deriving the dust properties of galaxies that determine many different qu
Externí odkaz:
http://arxiv.org/abs/2403.15619
Autor:
Yue, B. -H., Best, P. N., Duncan, K. J., Calistro-Rivera, G., Morabito, L. K., Petley, J. W., Prandoni, I., Röttgering, H. J. A., Smith, D. J. B.
Studies show that both radio jets from the active galactic nuclei (AGN) and the star formation (SF) activity in quasar host galaxies contribute to the quasar radio emission; yet their relative contributions across the population remain unclear. Here,
Externí odkaz:
http://arxiv.org/abs/2403.07074
Autor:
Hou, X., Zhang, W., Freire, P. C. C., Torres, D. F., Ballet, J., Smith, D. A., Johnson, T. J., Kerr, M., Cheung, C. C., Guillemot, L., Li, J., Zhang, L., Ridolfi, A., Wang, P., Li, D., Yuan, J., Wang, N.
We analyzed the globular cluster M5 (NGC 5904) using 15 years of gamma-ray data from the Fermi Large Area Telescope (LAT). Using rotation ephemerides generated from Arecibo and FAST radio telescope observations, we searched for gamma-ray pulsations f
Externí odkaz:
http://arxiv.org/abs/2401.08231
This paper introduces and tests an unsupervised method for detecting novel coordinated inauthentic information operations (CIOs) in realistic settings. This method uses Bayesian inference to identify groups of accounts that share similar account-leve
Externí odkaz:
http://arxiv.org/abs/2401.06205