Results 61 to 70 of about 133,360 (273)

Subarcsecond-resolution Imaging of M51 with the International LOFAR Telescope

The Astrophysical Journal, 2023
We present an International LOFAR Telescope (ILT) subarcsecond-resolution image of the nearby galaxy M51 with a beam size of 0.″436 × 0.″366 and rms of 46 μ Jy. We compare this image with a European VLBI Network study of M51 and discuss the supernovae in
Deepika Venkattu, Peter Lundqvist, Miguel Pérez Torres, Leah Morabito, Javier Moldón, John Conway, Poonam Chandra, Cyril Tasse   +7 more
doaj   +1 more source

The growth and assembly of a massive galaxy at z ~ 2

, 2009
We study the stellar mass assembly of the Spiderweb Galaxy (MRC 1138-262), a massive z = 2.2 radio galaxy in a protocluster and the probable progenitor of a brightest cluster galaxy.
A. W. Zirm, Benítez, Bertin, Binney, Blakeslee, Boylan-Kolchin, Bruzual, Bruzual, Chabrier, Chandraseker, Coe, Conroy, Conroy, De Lucia, di Matteo, Font, G. K. Miley, Gallagher, Guo, H. J. A. Röttgering, Hatch, Ivison, J. D. Kurk, Kodama, Kriek, Kurk, Malumuth, Maraston, Mihos, Miley, Miley, N. A. Hatch, Nesvadba, Overzier, Papovich, Pentericci, Pentericci, R. A. Overzier, Reddy, Salim, Saro, Saro, Sawicki, Schlegel, Seymour, Shapley, Spergel, Stevens, Venemans, Villar-Martin, Villar-Martín, Zirm, Zirm   +52 more
core   +1 more source

Clustering of galaxies around radio quasars at 0.5 < z < 0.8 [PDF]

, 1999
We have observed the galaxy environments around a sample of 21 radio-loud, steep-spectrum quasars at 0 ...
Abell, Allington-Smith, Andersen, Antonucci, Barthel, Barthel, Benítez, Best, Biretta, Burstein, Cardelli, Carlberg, Christian, Condon, Croft, Croft, Croom, Davis, de Robertis, Dickinson, Dopita, Downes, Eales, Ellingson, Ellingson, Fanti, Fisher, Forman, Fort, Fukugita, Groth, Guiderdoni, Guzzo, Hall, Hammer, Henry, Hill, Hudon, Hutchings, Jones, Kaiser, Kapahi, Kellerman, Koo, Kormendy, Lacy, Laing, Laing, Lake, Large, Le Fèvre, Lilje, Lilly, Lilly, Lin, Longair, Longair, Loveday, Loveday, Macklin, Magliocchetti, Magorrian, Margrethe Wold, Mark Lacy, Metcalfe, Miller, Morganti, Netzer, Oke, Peacock, Per B. Lilje, Prestage, Prestage, Rawlings, Reid, Riley, Rocca-Volmerange, Roche, Rosati, Rossitter, Schechter, Scheuer, Schmidtke, Schneider, Seldner, Serjeant, Serjeant, Serjeant, Smail, Small, Smith, Smith, Steidel, Stephen Serjeant, Stockton, Taylor, Valdes, Wilkinson, Willott, Willott, Wurtz, Yates, Yee, Yee, Yee, Yee, Zirbel   +106 more
core   +3 more sources

Radio and optical orientations of galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2009
We investigate the correlations between optical and radio isophotal position angles for 14302 SDSS galaxies with $r$ magnitudes brighter than 18 and which have been associated with extended FIRST radio sources. We identify two separate populations of galaxies using the colour, concentration and their principal components.
Battye, R. A., Browne, I. W A
openaire   +4 more sources

Massive Molecular Gas Companions Uncovered by Very Large Array CO(1–0) Observations of the z = 5.2 Radio Galaxy TN J0924−2201

The Astrophysical Journal, 2023
We present Karl G. Jansky Very Large Array K -band (19 GHz) observations of the redshifted CO(1–0) line emission toward the radio galaxy TN J0924−2201 at z = 5.2, which is one of the most distant radio galaxies with CO detected.
Kianhong Lee, Kotaro Kohno, Bunyo Hatsukade, Fumi Egusa, Takuji Yamashita, Malte Schramm, Kohei Ichikawa, Masatoshi Imanishi, Takuma Izumi, Tohru Nagao, Yoshiki Toba, Hideki Umehata   +11 more
doaj   +1 more source

Discovery of Rare Dying Radio Galaxies Using MeerKAT

Galaxies, 2021
Dying radio galaxies represent a stage of the evolution of active galactic nuclei (AGN), during which the accreting central black hole has switched off and/or falls to such a low level that the plasma outflow can no longer be sustained. When this happens,
Nadeem Oozeer, Lawrence Rudnick, Michael F. Bietenholz, Tiziana Venturi, Kenda Knowles, Konstantinos Kolokythas, Nceba Mhlahlo   +6 more
doaj   +1 more source

PKS2250-41: a case study for triggering

, 2008
We present the results of a multiwavelength study of the z = 0.31 radio source PKS2250-41. Integral field unit and long-slit spectroscopy obtained using VIMOS and FORS1 on the VLT, and archival HST optical imaging observations are used to study the ...
Appenzeller I., Best P. N., Binette L., Bremer M. N., C. N. Tadhunter, Clark N. E., D. Dicken, Danziger I. J., Dickson R., Howarth I. D., J. Holt, K. J. Inskip, M. Villar-Martín, Moorwood A., Morganti R., R. Morganti, Shaw M., Tadhunter C., Tadhunter C. N.   +18 more
core   +1 more source

Adaptive Optics observations of LBQS 0108+0028: K-band detection of the host galaxy of a radio-quiet QSO at z=2 [PDF]

, 1998
We report the first unambiguous detection of the host galaxy of a normal radio-quiet QSO at high-redshift in K-band. The luminosity of the host comprises about 35% of the total K-band luminosity. Assuming the average colour of QSOs at z=2, the host would
Aretxaga, I., Boyle, B. J., Melnick, J., Mignant, D. Le, Terlevich, R. J.   +4 more
core   +3 more sources

The Multiwavelength Environment of Second Bologna Catalog Sources

The Astrophysical Journal Supplement Series, 2023
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 the extended X-ray emission surrounding these sources.
A. Paggi, F. Massaro, H. Penã-Herazo, V. Missaglia, A. Jimenez-Gallardo, F. Ricci, S. Ettori, G. Giovannini, F. Govoni, R. D. Baldi, B. Mingo, M. Murgia, E. Liuzzo, F. Galati   +13 more
doaj   +1 more source

Dust tori in radio galaxies [PDF]

Astronomy and Astrophysics, 2010
17 pages, 9 figures, published in Astronomy and Astrophysics. Version 2 matches published version.
J. W. Pel, Pieter Barthel, Reynier Peletier, G. van der Wolk   +3 more
openaire   +5 more sources