Zobrazeno 1 - 10
of 735
pro vyhledávání: '"Best, P . N."'
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
The role of radio mode AGN feedback on galaxy evolution is still under debate. In this study, we utilize a combination of radio continuum observations and optical integral field spectroscopic (IFS) data to explore the impact of radio AGN on the evolu
Externí odkaz:
http://arxiv.org/abs/2409.01279
Autor:
de Jong, J. M. G. H. J., van Weeren, R. J., Sweijen, F., Oonk, J. B. R., Shimwell, T. W., Offringa, A. R., Morabito, L. K., Röttgering, H. J. A., Kondapally, R., Escott, E. L., Best, P. N., Bondi, M., Ye, H., Petley, J. W.
We present the deepest wide-field 115-166 MHz image at sub-arcsecond resolution spanning an area of 2.5 by 2.5 degrees centred at the ELAIS-N1 deep field. To achieve this, we improved the calibration for the International LOFAR Telescope. This enhanc
Externí odkaz:
http://arxiv.org/abs/2407.13247
Autor:
Piras, S., Horellou, C., Conway, J. E., Thomasson, M., del Palacio, S., Shimwell, T. W., O'Sullivan, S. P., Carretti, E., Šnidaric, I., Jelic, V., Adebahr, B., Berger, A., Best, P. N., Brüggen, M., Ruiz, N. Herrera, Paladino, R., Prandoni, I., Sabater, J., Vacca, V.
The aim of this study is to probe the sub-mJy polarized source population with LOFAR. We present the method used to stack LOFAR polarization datasets, the resulting catalog of polarized sources, and the derived polarized source counts. The ELAIS-N1 f
Externí odkaz:
http://arxiv.org/abs/2406.08346
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
How does the radio enhancement of broad absorption line quasars relate to colour and accretion rate?
Autor:
Petley, J. W., Morabito, L. K., Rankine, A. L., Richards, G. T., Thomas, N. L., Alexander, D. M., Fawcett, V. A., Rivera, G. Calistro, Prandoni, I., Best, P. N., Kolwa, S.
The origin of radio emission in different populations of radio-quiet quasars is relatively unknown, but recent work has uncovered various drivers of increased radio-detection fraction. In this work, we pull together three known factors: optical colou
Externí odkaz:
http://arxiv.org/abs/2402.18623
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:
Bondi, M., Scaramella, R., Zamorani, G., Ciliegi, P., Vitello, F., Arias, M., Best, P. N., Bonato, M., Botteon, A., Brienza, M., Brunetti, G., Hardcastle, M. J., Magliocchetti, M., Massaro, F., Morabito, L. K., Pentericci, L., Prandoni, I., Röttgering, H. J. A., Shimwell, T. W., Tasse, C., van Weeren, R. J., White, G. J.
We present the first deep (72 hours of observations) radio image of the Euclid Deep Field North (EDFN) obtained with the LOw-Frequency ARray (LOFAR) High Band Antenna (HBA) at 144 MHz. The EDFN is the latest addition to the LOFAR Two-Metre Sky Survey
Externí odkaz:
http://arxiv.org/abs/2312.06247
Autor:
de Jong, J. M. G. H. J., Röttgering, H. J. A., Kondapally, R., Mingo, B., van Weeren, R. J., Best, P. N., Morabito, L. K., Magliocchetti, M., Oonk, J. B. R., Villarrubia-Aguilar, A., Vecchi, F. F.
Radio-loud active galactic nuclei (RLAGN) play an important role in the evolution of galaxies through the effects on their environment. The two major morphological classes are core-bright (FRI) and edge-bright (FRII) sources. With the LOw-Frequency A
Externí odkaz:
http://arxiv.org/abs/2311.13427