Search Results - "BALDI, R"

A population of galaxy-scale jets discovered using LOFAR by Webster, B, Croston, J H, Mingo, B, Baldi, R D, Barkus, B, Gürkan, G, Hardcastle, M J, Morganti, R, Röttgering, H J A, Sabater, J, Shimwell, T W, Tasse, C, White, G J

“…ABSTRACT The effects of feedback from high luminosity radio-loud active galactic nuclei (AGN) have been extensively discussed in the literature, but feedback…”
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X-ray study of a sample of FR0 radio galaxies: unveiling the nature of the central engine by Torresi, E, Grandi, P, Capetti, A, Baldi, R D, Giovannini, G

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The radio loudness of SDSS quasars from the LOFAR Two-metre Sky Survey: ubiquitous jet activity and constraints on star formation by Macfarlane, C, Best, P N, Sabater, J, Gürkan, G, Jarvis, M J, Röttgering, H J A, Baldi, R D, Calistro Rivera, G, Duncan, K J, Morabito, L K, Prandoni, I, Retana-Montenegro, E

“…ABSTRACT We examine the distribution of radio emission from ∼42 000 quasars from the Sloan Digital Sky Survey, as measured in the LOFAR Two-metre Sky Survey…”
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The PG-RQS survey. Building the radio spectral distribution of radio-quiet quasars. I. The 45-GHz data by Baldi, R D, Laor, A, Behar, E, Horesh, A, Panessa, F, McHardy, I, Kimball, A

“…ABSTRACT The origin of the radio emission in radio-quiet quasars (RQQs) remains unclear. Radio emission may be produced by a scaled-down version of the…”
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On the multiwavelength variability of Mrk 110: two components acting at different time-scales by Vincentelli, F M, McHardy, I, Cackett, E M, Barth, A J, Horne, K, Goad, M, Korista, K, Gelbord, J, Brandt, W, Edelson, R, Miller, J A, Pahari, M, Peterson, B M, Schmidt, T, Baldi, R D, Breedt, E, Hernández Santisteban, J V, Romero-Colmenero, E, Ward, M, Williams, D R A

“…ABSTRACT We present the first intensive continuum reverberation mapping study of the high accretion-rate Seyfert galaxy Mrk 110. The source was monitored…”
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X-ray/UV/optical variability of NGC 4593 with Swift: reprocessing of X-rays by an extended reprocessor by McHardy, I M, Connolly, S D, Horne, K, Cackett, E M, Gelbord, J, Peterson, B M, Pahari, M, Gehrels, N, Goad, M, Lira, P, Arevalo, P, Baldi, R D, Brandt, N, Breedt, E, Chand, H, Dewangan, G, Done, C, Elvis, M, Emmanoulopoulos, D, Fausnaugh, M M, Kaspi, S, Kochanek, C S, Korista, K, Papadakis, I E, Rao, A R, Uttley, P, Vestergaard, M, Ward, M J

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The host galaxy of the γ-ray-emitting narrow-line Seyfert 1 galaxy PKS 1502+036 by D’Ammando, F, Acosta-Pulido, J A, Capetti, A, Baldi, R D, Orienti, M, Raiteri, C M, Ramos Almeida, C

“…The detection of γ-ray emission from narrow-line Seyfert 1 galaxies (NLSy1) has challenged the idea that large black hole (BH) masses (≥108 M⊙) are needed to…”
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Hard-X-ray-selected active galactic nuclei – I. A radio view at high frequencies by Chiaraluce, E, Panessa, F, Bruni, G, Baldi, R D, Behar, E, Vagnetti, F, Tombesi, F, McHardy, I

“…ABSTRACT A thorough study of radio emission in active galactic nuclei (AGNs) is of fundamental importance to understand the physical mechanisms responsible for…”
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Investigating the spectra and physical nature of galaxy scale jets by Webster, B, Croston, J H, Harwood, J J, Baldi, R D, Hardcastle, M J, Mingo, B, Röttgering, H J A

“…ABSTRACT Previous studies have shown that physically small, low-luminosity radio galaxies, which we refer to as galaxy scale jets (GSJ), could potentially have…”
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Accretion mode versus radio morphology in the LOFAR Deep Fields by Mingo, B, Croston, J H, Best, P N, Duncan, K J, Hardcastle, M J, Kondapally, R, Prandoni, I, Sabater, J, Shimwell, T W, Williams, W L, Baldi, R D, Bonato, M, Bondi, M, Dabhade, P, Gürkan, G, Ineson, J, Magliocchetti, M, Miley, G, Pierce, J C S, Röttgering, H J A

“…ABSTRACT Radio-loud active galaxies have two accretion modes [radiatively inefficient (RI) and radiatively efficient (RE)], with distinct optical and infrared…”
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The Multiwavelength Environment of Second Bologna Catalog Sources by Paggi, A., Massaro, F., Penã-Herazo, H., Missaglia, V., Jimenez-Gallardo, A., Ricci, F., Ettori, S., Giovannini, G., Govoni, F., Baldi, R. D., Mingo, B., Murgia, M., Liuzzo, E., Galati, F.

“…We present the first results of the Chandra Cool Targets (CCT) survey of the Second Bologna Catalog (B2CAT) of powerful radio sources, aimed at investigating…”
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The nature of compact radio-loud AGN: a systematic look at the LOFAR AGN population by Chilufya, J, Hardcastle, M J, Pierce, J C S, Croston, J H, Mingo, B, Zheng, X, Baldi, R D, Röttgering, H J A

“…ABSTRACT We investigate the nature of low-luminosity radio-loud active galactic nuclei (RLAGN) selected from the LOFAR Two-metre Sky Survey (LoTSS) first data…”
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Local AGN survey (LASr): I. Galaxy sample, infrared colour selection, and predictions for AGN within 100 Mpc by Asmus, D, Greenwell, C L, Gandhi, P, Boorman, P G, Aird, J, Alexander, D M, Assef, R J, Baldi, R D, Davies, R I, Hönig, S F, Ricci, C, Rosario, D J, Salvato, M, Shankar, F, Stern, D

“…ABSTRACT To answer major questions on supermassive black hole (SMBH) and galaxy evolution, a complete census of SMBH growth, i.e. active galactic nuclei (AGN),…”
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The new class of FR 0 radio galaxies by Baldi, R. D., Capetti, A., Giovannini, G.

“…Are the FRI and FRII radio galaxies representative of the radio‐loud (RL) AGN population in the local Universe? Recent studies on the local low‐luminosity…”
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LeMMINGs III. The e-MERLIN legacy survey of the Palomar sample: exploring the origin of nuclear radio emission in active and inactive galaxies through the [O iii] – radio connection by Baldi, R D, Williams, D R A, Beswick, R J, McHardy, I, Dullo, B T, Knapen, J H, Zanisi, L, Argo, M K, Aalto, S, Alberdi, A, Baan, W A, Bendo, G J, Fenech, D M, Green, D A, Klöckner, H-R, Körding, E, Maccarone, T J, Marcaide, J M, Mutie, I, Panessa, F, Pérez-Torres, M A, Romero-Cañizales, C, Saikia, D J, Saikia, P, Shankar, F, Spencer, R E, Stevens, I R, Uttley, P, Brinks, E, Corbel, S, Martí-Vidal, I, Mundell, C G, Pahari, M, Ward, M J

“…ABSTRACT What determines the nuclear radio emission in local galaxies? To address this question, we combine optical [O iii] line emission, robust black hole…”
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Hard X-ray selected giant radio galaxies – III. The LOFAR view by Bruni, G, Brienza, M, Panessa, F, Bassani, L, Dallacasa, D, Venturi, T, Baldi, R D, Botteon, A, Drabent, A, Malizia, A, Massaro, F, Röttgering, H J A, Ubertini, P, Ursini, F, van Weeren, R J

“…ABSTRACT Giant radio galaxies (GRGs), with extended structures reaching hundreds of kpc, are among the most spectacular examples of ejection of relativistic…”
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Radio jets in NGC 4151: where eMERLIN meets HST by Williams, D. R. A., McHardy, I. M., Baldi, R. D., Beswick, R. J., Argo, M. K., Dullo, B. T., Knapen, J. H., Brinks, E., Fenech, D. M., Mundell, C. G., Muxlow, T. W. B., Panessa, F., Rampadarath, H., Westcott, J.

“…Abstract We present high-sensitivity eMERLIN radio images of the Seyfert galaxy NGC 4151 at 1.51 GHz. We compare the new eMERLIN images to those from archival…”
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LeMMINGs – IV. The X-ray properties of a statistically complete sample of the nuclei in active and inactive galaxies from the Palomar sample by Williams, D R A, Pahari, M, Baldi, R D, McHardy, I M, Mathur, S, Beswick, R J, Beri, A, Boorman, P, Aalto, S, Alberdi, A, Argo, M K, Dullo, B T, Fenech, D M, Green, D A, Knapen, J H, Martí-Vidal, I, Moldon, J, Mundell, C G, Muxlow, T W B, Panessa, F, Pérez-Torres, M, Saikia, P, Shankar, F, Stevens, I R, Uttley, P

“…ABSTRACT All 280 of the statistically complete Palomar sample of nearby (<120 Mpc) galaxies δ > 20° have been observed at 1.5 GHz as part of the LeMMINGs…”
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LeMMINGs. VI. Connecting nuclear activity to bulge properties of active and inactive galaxies: radio scaling relations and galaxy environment by Dullo, B T, Knapen, J H, Beswick, R J, Baldi, R D, Williams, D R A, McHardy, I M, Green, D A, Gil de Paz, A, Aalto, S, Alberdi, A, Argo, M K, Klöckner, H-R, Mutie, I M, Saikia, D J, Saikia, P, Stevens, I R

“…ABSTRACT Multiwavelength studies indicate that nuclear activity and bulge properties are closely related, but the details remain unclear. To study this…”
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LeMMINGs. Multiwavelength constraints on the co-existence of nuclear star clusters and AGN in nucleated galaxies by Dullo, B T, Knapen, J H, Baldi, R D, Williams, D R A, Beswick, R J, McHardy, I M, Green, D A, Gil de Paz, A, Aalto, S, Alberdi, A, Argo, M K, Gallagher, J S, Klöckner, H -R, Marcaide, J M, Mutie, I M, Saikia, D J, Saikia, P, Stevens, I R, Torrejón, S

“…ABSTRACT The relation between nuclear star clusters (NSCs) and the growth of the central supermassive black holes (SMBHs), as well as their connection to the…”
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