Zobrazeno 1 - 10
of 248
pro vyhledávání: '"Maddox, N"'
Source detection is a vital part of any astronomical survey analysis pipeline. In addition, a versatile source finder that can recover and handle sources of all morphological types is becoming more important as surveys get bigger and achieve a higher
Externí odkaz:
http://arxiv.org/abs/2410.22508
Autor:
Heywood, I., Ponomareva, A. A., Maddox, N., Jarvis, M. J., Frank, B. S., Adams, E. A. K., Baes, M., Bianchetti, A., Collier, J. D., Deane, R. P., Glowacki, M., Jung, S. L., Pan, H., Rajohnson, S. H. A., Rodighiero, G., Ruffa, I., Santos, M. G., Sinigaglia, F., Vaccari, M.
Publikováno v:
MNRAS, Volume 534, Issue 1, October 2024, p76-96
The MIGHTEE survey utilises the South African MeerKAT radio telescope to observe four extragalactic deep fields, with the aim of advancing our understanding of the formation and evolution of galaxies across cosmic time. MIGHTEE's frequency coverage e
Externí odkaz:
http://arxiv.org/abs/2409.17713
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
Autor:
Heintz, K. E., Fynbo, J. P. U., Møller, P., Milvang-Jensen, B., Zabl, J., Maddox, N., Krogager, J.-K., Geier, S., Vestergaard, M., Noterdaeme, P., Ledoux, C.
The sub-population of quasars reddened by intrinsic or intervening clouds of dust are known to be underrepresented in optical quasar surveys. By defining a complete parent sample of the brightest and spatially unresolved quasars in the COSMOS field,
Externí odkaz:
http://hdl.handle.net/10150/622443
http://arizona.openrepository.com/arizona/handle/10150/622443
http://arizona.openrepository.com/arizona/handle/10150/622443
Autor:
Hale, C. L., Whittam, I. H., Jarvis, M. J., Best, P. N., Thomas, N. L., Heywood, I., Prescott, M., Adams, N., Afonso, J., An, Fangxia, Bowler, R. A. A., Collier, J. D., Cook, R. H. W., Davé, R., Frank, B. S., Glowacki, M., Hatfield, P. W., Lovell, S. Kolwa C. C., Maddox, N., Marchetti, L., Morabito, L. K., Murphy, E., Prandoni, I., Randriamanakoto, Z., Taylor, A. R.
We present deep 1.4 GHz source counts from $\sim$5 deg$^2$ of the continuum Early Science data release of the MeerKAT International Gigahertz Tiered Extragalactic Exploration (MIGHTEE) survey down to $S_{1.4\textrm{GHz}}\sim$15 $\mu$Jy. Using observa
Externí odkaz:
http://arxiv.org/abs/2211.05741
Autor:
Whittam, I. H., Jarvis, M. J., Hale, C. L., Prescott, M., Morabito, L. K., Heywood, I., Adams, N. J., Afonso, J., An, Fangxia, Ao, Y., Bowler, R. A., Collier, J. D., Deane, R. P., Delhaize, J., Frank, B., Glowacki, M., Hatfield, P. W., Maddox, N., Marchetti, L., Matthews, A. M., Prandoni, I., Randriamampandry, S., Randriamanakoto, Z., Smith, D. J. B., Taylor, A. R., Thomas, N. L., Vaccari, M.
We study the nature of the faint radio source population detected in the MeerKAT International GHz Tiered Extragalactic Exploration (MIGHTEE) Early Science data in the COSMOS field, focusing on the properties of the radio-loud active galactic nuclei
Externí odkaz:
http://arxiv.org/abs/2207.12379
Autor:
Symeonidis, M., Maddox, N., Jarvis, M. J., Michalowski, M. J., Andreani, P., Clements, D. L., De Zotti, G., Duivenvoorden, S., Gonzalez-Nuevo, J., Ibar, E., Ivison, R. J., Leeuw, L., Page, M. J., Shirley, R., Smith, M. W. L., Vaccari, M.
We examine the far-IR properties of a sample of 5391 optically selected QSOs in the 0.544.7, using SPIRE data from Herschel-ATLAS. We split the sample in a grid of 74 luminosity-redshift bins and
Externí odkaz:
http://arxiv.org/abs/2205.11645
Autor:
Tudorache, Madalina N., Jarvis, M. J., Heywood, I., Ponomareva, A. A., Maddox, N., Frank, B. S., Adams, N. J., Bowler, R. A. A., Whittam, I. H., Baes, M., Pan, H., Rajohnson, S. H. A., Sinigaglia, F., Spekkens, K.
We study the 3D axis of rotation (3D spin) of 77 HI galaxies from the MIGHTEE-HI Early Science observations, and its relation to the filaments of the cosmic web. For this HI-selected sample, the alignment between the spin axis and the closest filamen
Externí odkaz:
http://arxiv.org/abs/2204.03041
Autor:
Heywood, I., Jarvis, M. J., Hale, C. L., Whittam, I. H., Bester, H. L., Hugo, B., Kenyon, J. S., Prescott, M., Smirnov, O. M., Tasse, C., Afonso, J. M., Best, P. N., Collier, J. D., Deane, R. P., Frank, B. S., Hardcastle, M. J., Knowles, K., Maddox, N., Murphy, E. J., Prandoni, I., Randriamampandry, S. M., Santos, M. G., Sekhar, S., Tabatabaei, F., Taylor, A. R., Thorat, K.
MIGHTEE is a galaxy evolution survey using simultaneous radio continuum, spectro-polarimetry, and spectral line observations from the South African MeerKAT telescope. When complete, the survey will image $\sim$20 deg$^{2}$ over the COSMOS, E-CDFS, EL
Externí odkaz:
http://arxiv.org/abs/2110.00347
Autor:
Jurlin, N., Brienza, M., Morganti, R., Wadadekar, Y., Ishwara-Chandra, C. H., Maddox, N., Mahatma, V.
Publikováno v:
A&A 653, A110 (2021)
Remnant radio galaxies represent an important phase in the life-cycle of radio active galactic nuclei. It is suggested that in this phase, the jets have switched off and the extended emission is fading rapidly. This phase is not well-studied due to t
Externí odkaz:
http://arxiv.org/abs/2106.13161