English
Related papers

Related papers: Detection of Two Massive CO Systems in 4C 41.17 at…

200 papers

We report the detection of sub-mm emission from dust at 850 microns and of the 12CO J=4-3 line in the two distant powerful radio galaxies 4C 60.07 (z=3.79) and 6C 1909+722 (z=3.53). In the case of 4C 60.07 the dust emission is also detected…

We report on the detection of the CO(4-3) line with the IRAM Plateau de Bure Interferometer in two z>3 radio galaxies, doubling the number of successful detections in such objects. A comparison of the CO and Ly-alpha velocity profiles…

Astrophysics · Physics 2008-11-26 Carlos De Breuck , Roberto Neri , Alain Omont

We present deep 350- and 1200-micron imaging of the region around 4C41.17 -- one of the most distant (z = 3.792) and luminous known radio galaxies -- obtained with the Submillimeter High Angular Resolution Camera (SHARC-II) and the Max…

Astrophysics · Physics 2009-11-13 T. R. Greve , D. Stern , R. J. Ivison , C. De Breuck , A. Kovács , F. Bertoldi

We have detected redshifted CO (2-1) emission at 43 GHz and radio continuum emission at 1.47 and 4.86 GHz from the z = 4.4 QSO BRI 1335-0417 using the Very Large Array. The CO data imply optically thick emission from warm (>30 K) molecular…

Astrophysics · Physics 2009-10-31 Christopher L. Carilli , Karl M. Menten , Min Su Yun

The z=2.39 radio galaxy 53W002 lies in a cluster of Ly-alpha emission line objects and may itself be undergoing a major burst of star formation. CO(3--2) emission, at 102 GHz, was detected from 53W002 by Scoville et al. (1997a), who also…

Astrophysics · Physics 2009-10-31 Danielle Alloin , Richard Barvainis , Stephane Guilloteau

We report the detection of luminous CO(3-2) line emission in the halo of the z=2.6 radio galaxy (HzRG) TXS0828+193, which has no detected counterpart at optical to mid-infrared wavelengths implying a stellar mass < few x10^9 M_sun and…

Cosmology and Nongalactic Astrophysics · Physics 2009-11-13 N. P. H. Nesvadba , R. Neri , C. De Breuck , M. D. Lehnert , D. Downes , F. Walter , A. Omont , F. Boulanger , N. Seymour

CO observations of 0<z<4 radio galaxies are presented. The L_CO upper limits for the high-redshift powerful radio galaxies (HzPRGs: z > 1, P_408MHz > 10^27 Watts/Hz) are consistent with no evolution in molecular gas (H_2) mass with redshift…

Astrophysics · Physics 2007-05-23 A. S. Evans

Powerful radio sources associated with super-massive black holes are among the most luminous objects in the Universe, and are frequently recognized both as cosmological probes and active constituents in the evolution of galaxies. We present…

We present moderate (1'') and high resolution (0.2'') observations of the CO(2-1) emission at 43 GHz, and radio continuum emission at 1.47 GHz, from the z=4.7 QSO BRI 1202-0725 and the z=4.4 QSO BRI 1335--0417 using the Very Large Array.…

Astrophysics · Physics 2009-11-07 C. L. Carilli , K. Kohno , R. Kawabe , K. Ohta , C. Henkel , K. Menten , M. Yun , A. Petric , Y. Tutui

We report the detection with the IRAM interferometer at 3mm of J=5-4 CO line in the radio quiet quasar BRI1335-0415 at redshift of z=4.41. After BR1202-0725 at z=4.69 (Ohta etal 1996, Omont etal 1996a), this is the second detection of CO at…

We analyse a 100-ks Chandra observation of the powerful radio galaxy, 4C60.07 at z=3.79. We identify extended X-ray emission with Lx~10^45 erg/s across a ~90-kpc region around the radio galaxy. The energetics of this X-ray halo and its…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Ian Smail , B. D. Lehmer , R. J. Ivison , D. M. Alexander , R. G. Bower , J. A. Stevens , J. E. Geach , C. A. Scharf , K. E. K. Coppin , W. J. M. van Breugel , .

We report on the detection of the lowest CO J = 1 - 0 transition in the powerful high-redshift radio galaxy 4C60.07 at z = 3.79. The CO emission is distributed in two spatially and kinematically distinct components as was previously known…

Astrophysics · Physics 2009-11-10 T. R. Greve , R. J. Ivison , P. P. Papadopoulos

We present MUSE/VLT imaging spectroscopy of rest-frame ultraviolet emission lines and ALMA observations of the [CI] $^3$P$_1$-$^3$P$_0$ emission line, probing both the ionized and diffuse molecular medium around the radio galaxy 4C 19.71 at…

Astrophysics of Galaxies · Physics 2021-01-27 Theresa Falkendal , Matthew D. Lehnert , Joël Vernet , Carlos De Breuck , Wuji Wang

The nearby system 4C12.50, also known as IRAS 13451+1217 and PKS 1345+12, is a merger of gas-rich galaxies with infrared and radio activity. It has a perturbed interstellar medium (ISM) and a dense configuration of gas and dust around the…

Astrophysics of Galaxies · Physics 2019-09-04 C. M. Fotopoulou , K. M. Dasyra , F. Combes , P. Salomé , M. Papachristou

We present new, spatially resolved [CI]1-0, [CI]2-1, CO(7-6), and dust continuum observations of 4C 41.17 at $z=3.8$ obtained with the IRAM NOEMA interferometer. This is one of the best-studied radio galaxies in this epoch and is arguably…

Astrophysics of Galaxies · Physics 2020-07-29 N. P. H. Nesvadba , G. V. Bicknell , D. Mukherjee , A. Y. Wagner

We report a sensitive search for redshifted CO (3-2) emission from the weak radio galaxy 53W002 at z=2.394. Maps at resolutions of 3 arcsec and 235km/s show a significant emission peak within 0.5 arcsec of the optical and radio continuum…

Astrophysics · Physics 2009-10-30 N. Z. Scoville , M. S. Yun , R. A. Windhorst , W. C. Keel , L. Armus

We present the first results of a high-resolution study of the distribution and kinematics of molecular gas in two nearby radio galaxies, 4C31.04 and 3C293, representative of two different stages of evolution in radio-loud active galactic…

Astrophysics · Physics 2009-11-13 S. Garcia-Burillo , F. Combes , A. Usero , A. Fuente

Using the Australia Telescope Compact Array we have detected CO(1-0) and CO(5-4) from TNJ0924-2201 at z=5.2, the most distant radio galaxy known to date. This is the second highest redshift detection of CO published so far. The CO(1-0) is…

Astrophysics · Physics 2009-11-10 Ilana Klamer , Ron Ekers , Elaine Sadler , Axel Weiss , Richard Hunstead , Carlos De Breuck

This paper reports the latest results from a millimeter-wave (CO) spectroscopic survey of IRAS-detected radio galaxies with L_1.4GHz ~ 10^23-28 W/Hz in the redshift range z ~ 0.02-0.15. The IRAS flux-limited sample contains 33 radio…

Astrophysics · Physics 2009-11-11 A. S. Evans , J. M. Mazzarella , J. A. Surace , D. T. Frayer , K. Iwasawa , D. B. Sanders

We present near-infrared imaging and spectroscopic observations of two FR II high-redshift radio galaxies (HzRGs), 4C 40.36 (z=2.3) and 4C 39.37 (z=3.2), obtained with the Hubble, Keck, and Hale Telescopes. High resolution images were taken…

Astrophysics · Physics 2009-11-07 E. Egami , L. Armus , G. Neugebauer , T. W. Murphy , B. T. Soifer , K. Matthews , A. S. Evans
‹ Prev 1 2 3 10 Next ›