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200 papers

Current submillimetre surveys are hindered in their ability to reveal detailed information on the epoch of galaxy formation and the evolutionary history of a high-redshift starburst galaxy population. The difficulties are due to the small…

Astrophysics · Physics 2007-05-23 David H. Hughes , Enrique Gaztanaga

Discerning the exact nature of the sub-mJy radio population has been historically difficult due to the low luminosity of these sources at most wavelengths. Using deep ground based optical follow-up and observations from the Spitzer Space…

Astrophysics · Physics 2009-11-13 N. Seymour , T. Dwelly , D. Moss , I. McHardy , A. Zoghbi , G. Rieke , M. Page , A. Hopkins , N. Loaring

Analysis of the frequency and physical properties of galaxies with star-formation and AGN activity in different environments in the local universe is a cornerstone for understanding structure formation and galaxy evolution. We have built a…

Astrophysics · Physics 2008-11-26 Pietro Reviglio , David J. Helfand

Surveys of redshifted emission lines in the near-infrared will provide unique information on the cosmic star formation history. Near-infrared Halpha surveys will probe the cosmic star formation density and the evolution of the luminosity…

Astrophysics · Physics 2007-05-23 Paul P. van der Werf

We outline the case for a comprehensive wide and deep survey ultimately targeted at obtaining 21-cm HI line emission spectroscopic observations of more than a billion galaxies to redshift z=1.5 and greater over half the sky. This survey…

Cosmology and Nongalactic Astrophysics · Physics 2009-03-05 Steven T. Myers , Filipe B. Abdalla , Chris Blake , Leon Koopmans , Joseph Lazio , Steve Rawlings

The remnant phase of a radio galaxy is characterized by the cessation of AGN activity resulting in the stoppage of jets supplying plasma to radio lobes. In this paper, we present the search and characterization of remnant candidates in 12.5…

Astrophysics of Galaxies · Physics 2023-02-24 Sushant Dutta , Veeresh Singh , C. H. Ishwara Chandra , Yogesh Wadadekar , Abhijit Kayal , Ian Heywood

The Square Kilometer Array (SKA) will enable studies of star formation in nearby galaxies with a level of detail never before possible outside of the Milky Way. Because the earliest stages of stellar evolution are often inaccessible at…

Astrophysics · Physics 2009-11-10 Kelsey E. Johnson

We present the science case for mapping several thousand galaxy (proto)clusters at z=1-10 with a large aperture single dish sub-mm facility, producing a high-redshift counterpart to local large surveys of rich clusters like the well-studied…

The use of continuum emission radio galaxies as cosmological tracers of the large-scale structure will soon move into a new phase. Upcoming surveys from the Australian Square Kilometre Array Pathfinder (ASKAP), MeerKAT, and the Square…

Cosmology and Nongalactic Astrophysics · Physics 2021-07-28 Jacobo Asorey , David Parkinson

Wide-field surveys are a commonly-used method for studying thousands of objects simultaneously, to investigate, e.g., the joint evolution of star-forming galaxies and active galactic nuclei. VLBI observations can yield valuable input to…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Enno Middelberg , Adam Deller , John Morgan , Helge Rottmann , Walter Alef , Steven Tingay , Ray Norris , Uwe Bach , Walter Brisken , Emil Lenc

[abridged] We propose a tiered, UV--near-IR, cosmological broad- and medium-band imaging and grism survey that covers ~10 deg^2 in two epochs to m_AB=28, ~3 deg^2 in seven epochs to m_AB=28, and ~1 deg^2 in 20 epochs to m_AB=30 mag. Such a…

Cosmology and Nongalactic Astrophysics · Physics 2009-04-15 Rolf A. Jansen , Rogier Windhorst , James Rhoads , Sangeeta Malhotra , Daniel Stern , Robert O'Connell , Paul Scowen , Matthew Beasley

The new broad-band capabilities of large radio interferometers such as the GMRT and JVLA allow for long-integration mosaic imaging observations to create ultra-deep full-polarization images of the sky over wide frequency ranges. Achieving…

Astrophysics of Galaxies · Physics 2014-05-02 A. R. Taylor , S. Bhatnagar , J. Condon , D. A. Green , J. M. Stil , P. Jagannathan , N. Kantharia , R. Kothes , R. Perley , J. Wall , T. Willis

We present the results of a high angular resolution (1.1") and sensitivity (maximum of ~0.1 mJy) radio survey at 1-2 GHz in the Galactic Bulge. This complements the X-ray Chandra Galactic Bulge Survey, and investigates the full radio source…

High Energy Astrophysical Phenomena · Physics 2024-05-09 E. C. Pattie , T. J. Maccarone , C. T. Britt , C. O. Heinke , P. G. Jonker , D. R. Lorimer , G. R. Sivakoff , D. Steeghs , J. Strader , M. A. P. Torres , R. Wijnands

We investigate the correlations in galaxy shapes between optical and radio wavelengths using archival observations of the COSMOS field. Cross-correlation studies between different wavebands will become increasingly important for precision…

Astrophysics of Galaxies · Physics 2016-12-19 Ben Tunbridge , Ian Harrison , Michael L. Brown

High contrast imaging searches for exoplanets have been conducted on 2.4-10 m telescopes, typically at H band (1.6 microns) and used exposure times of ~1 hr to search for planets with semi-major axes of > ~10 AU. We are beginning to plan…

Instrumentation and Methods for Astrophysics · Physics 2015-06-15 Jared R. Males , Andrew J. Skemer , Laird M. Close

We present the results of a 5 GHz survey with the Very Large Array, designed to search for short-lived (<1 day) transients and to characterize the variability of radio sources at milli-Jansky levels. A total sky area of 2.66 deg^2, spread…

High Energy Astrophysical Phenomena · Physics 2015-05-27 E. O. Ofek , D. A. Frail , B. Breslauer , S. R. Kulkarni , P. Chandra , A. Gal-Yam , M. M. Kasliwal , N. Gehrels

Deep radio observations at 1.4GHz for the Extended Chandra Deep Field South were performed in June through September of 2007 and presented in a first data release (Miller et al. 2008). The survey was made using six separate pointings of the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 N. A. Miller , M. Bonzini , E. B. Fomalont , K. I. Kellermann , V. Mainieri , P. Padovani , P. Rosati , P. Tozzi , S. Vattakunnel

High-redshift radio galaxies can provide insights into the structure formation and galaxy evolution at earlier cosmological epochs. TGSSJ1530+1049 was selected as a candidate high-redshift radio galaxy. Subsequent observations with the…

Low-mass galaxies are subject to strong galactic outflows, in which cosmic rays may play an important role, they can be best traced with low-frequency radio continuum observations, which are less affected by spectral ageing. We present a…

The Legacy e-MERLIN Multi-band Imaging of Nearby Galaxies survey (LeMMINGs) is a statistically-complete census of nuclear accretion and star formation processes in the local Universe. The LeMMINGs observations at 1.5 and 5 GHz yield angular…