Zobrazeno 1 - 10
of 4 091
pro vyhledávání: '"Smith, A. J. B."'
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:
Cornish, Thomas M., Wardlow, Julie L., Greve, Thomas R., Chapman, Scott, Chen, Chian-Chou, Dannerbauer, Helmut, Goto, Tomotsugu, Gullberg, Bitten, Ho, Luis C., Jiang, Xue-Jian, Lagos, Claudia, Lee, Minju, Serjeant, Stephen, Shim, Hyunjin, Smith, Daniel J. B., Vijayan, Aswin, Wagg, Jeff, Zhou, Dazhi
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Vol. 533, Issue 1 (2024) pp. 1032-1044
Measuring the environments of massive galaxies at high redshift is crucial to understanding galaxy evolution and the conditions that gave rise to the distribution of matter we see in the Universe today. While high-$z$ radio galaxies (H$z$RGs) and qua
Externí odkaz:
http://arxiv.org/abs/2407.21099
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:
Das, Soumyadeep, Smith, Daniel J. B., Haskell, Paul, Hardcastle, Martin J., Best, Philip N., Duncan, Kenneth J., Arnaudova, Marina I., Shenoy, Shravya, Kondapally, Rohit, Cochrane, Rachel K., Drake, Alyssa B., Gürkan, Gülay, Małek, Katarzyna, Morabito, Leah K., Prandoni, Isabella
Spectral energy distribution (SED) fitting has been extensively used to determine the nature of the faint radio source population. Recent efforts have combined fits from multiple SED-fitting codes to account for the host galaxy and any active nucleus
Externí odkaz:
http://arxiv.org/abs/2405.01624
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:
Rivera, G. Calistro, Alexander, D. M., Harrison, C. M., Fawcett, V. A., Best, P. N., Williams, W. L., Hardcastle, M. J., Rosario, D. J., Smith, D. J. B., Arnaudova, M. I., Escott, E., Gürkan, G., Kondapally, R., Miley, G., Morabito, L. K., Petley, J., Prandoni, I., Röttgering, H. J. A., Yue, B. -H.
We present a comprehensive study of the physical origin of radio emission in optical quasars at redshifts z < 2.5. We focus particularly on the associations between compact radio emission, dust reddening, and outflows identified in our earlier work.
Externí odkaz:
http://arxiv.org/abs/2312.10177
Autor:
Whittam, I. H., Prescott, M., Hale, C. L., Jarvis, M . J., Heywood, I., An, Fangxia, Glowacki, M., Maddox, N., Marchetti, L., Morabito, L. K., Adams, N. J., Bowler, R. A. A., Hatfield, P. W., Varadaraj, R. G., Collier, J., Frank, B., Taylor, A. R., Santos, M. G., Vaccari, M., Afonso, J., Ao, Y., Delhaize, J., Knowles, K., Kolwa, S., Randriamampandry, S. M., Randriamanakoto, Z., Smirnov, O., Smith, D. J. B., White, S. V.
In this paper we combine the Early Science radio continuum data from the MeerKAT International GHz Tiered Extragalactic Exploration (MIGHTEE) Survey, with optical and near-infrared data and release the cross-matched catalogues. The radio data used in
Externí odkaz:
http://arxiv.org/abs/2310.17409
We investigate how the recovery of galaxy star formation rates (SFRs) using energy-balance spectral energy distribution (SED) fitting codes depends on their recent star formation histories (SFHs). We use the Magphys and Prospector codes to fit 6,706
Externí odkaz:
http://arxiv.org/abs/2310.16097
Publikováno v:
MNRAS, vol 525, p 1535 (2023)
Recent works have suggested that energy balance spectral energy distribution (SED) fitting codes may be of limited use for studying high-redshift galaxies for which the observed ultraviolet and far-infrared emission are offset (spatially `decoupled')
Externí odkaz:
http://arxiv.org/abs/2309.07960