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Technology has advanced to the point that it is possible to image the entire sky every night and process the data in real time. The sky is hardly static: many interesting phenomena occur, including variable stationary objects such as stars…

天体物理仪器与方法 · 物理学 2018-05-23 J. L. Tonry , L. Denneau , A. N. Heinze , B. Stalder , K. W. Smith , S. J. Smartt , C. W. Stubbs , H. J. Weiland , A. Rest

We report on a search for radio transients at 340 MHz with the Jansky Very Large Array (VLA) Low band Ionospheric and Transient Experiment (VLITE). Between 2015 July 29 and 2015 September 27, operating in commensal mode, VLITE imaged…

高能天体物理现象 · 物理学 2016-11-23 E. Polisensky , W. M. Lane , S. D. Hyman , N. E. Kassim , S. Giacintucci , T. E. Clarke , W. D. Cotton , E. Cleland , D. A. Frail

This paper is part of a series reporting the results of the ATESP radio survey obtained at 1.4 GHz with the Australia Telescope Compact Array. The survey consists of 16 radio mosaics with ~8"x14" resolution and uniform sensitivity (1sigma…

天体物理学 · 物理学 2009-10-31 I. Prandoni , L. Gregorini , P. Parma , H. R. de Ruiter , G. Vettolani , M. H. Wieringa , R. D. Ekers

The Large Array Survey Telescope (LAST) is a wide-field telescope designed to explore the variable and transient sky with a high cadence and to be a test-bed for cost-effective telescope design. A LAST node is composed of 48 (32 already…

We use two independent methods to reduce the data of the surveys made with RATAN-600 radio telescope at 7.6 cm in 1988-1999 at the declination of the SS433 source. We also reprocess the data of the "Cold" survey (1980-1981). The resulting…

宇宙学与河外天体物理 · 物理学 2010-03-10 N. S. Soboleva , E. K. Majorova , O. P. Zhelenkova , A. V. Temirova , N. N. Bursov

We have made a radio survey--the Australia Telescope Low Brightness Survey (ATLBS)--of 8.4 square degrees sky area, using the Australia Telescope Compact Array in the 20-cm band, in an observing mode designed to provide wide-field images…

天体物理学 · 物理学 2009-06-23 Ravi Subrahmanyan , R. D. Ekers , Lakshmi Saripalli , E. M. Sadler

We describe the reduction of data taken with the PACS instrument on board the Herschel Space Observatory in the Science Demonstration Phase of the Herschel-ATLAS (H-ATLAS) survey, specifically data obtained for a 4x4-deg^2 region using…

Long-period radio transients (LPTs) are a recently identified phenomenon that challenge our current understanding of compact objects and coherent radio emission mechanisms. These objects emit radio pulses similar to those of pulsars, but at…

ATLAS (Australia Telescope Large Area Survey) is a wide deep radio survey which is distinguished by its comprehensive multi-wavelength approach. ATLAS is creating a large dataset of radio-selected galaxies for studying the evolution and…

宇宙学与河外天体物理 · 物理学 2014-11-20 Ray P. Norris , the ATLAS team

A search for resonant structures in the $J/\psi +\psi$(2S) mass spectrum is performed using proton--proton collision data at $\sqrt{s}=13$ TeV, corresponding to an integrated luminosity of 140 fb$^{-1}$, recorded by the ATLAS experiment at…

高能物理 - 实验 · 物理学 2025-09-17 ATLAS Collaboration

Transient surveys are a vital tool in exploring the dynamic universe, with radio transients acting as beacons for explosive and highly energetic astrophysical phenomena. However, performing commensal transient surveys using radio imaging…

We present the first major data release of the largest single key-project in area carried out in open time with the Herschel Space Observatory. The Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS) is a survey of 600 deg^2 in…

We present high-resolution observations made with the Australia Telescope Compact Array (ATCA) at 5.5 GHz and 9.0 GHz of a sample of twenty-eight massive protostars. These protostars were initially detected at radio wavelengths in the…

星系天体物理 · 物理学 2025-05-06 W. O Obonyo , M. G Hoare , S. L Lumsden , J. O. Chibueze , C. J. Ugwu

We describe a 22-year survey for variable and transient radio sources, performed with archival images taken with the Molonglo Observatory Synthesis Telescope (MOST). This survey covers $2775 \unit{deg^2}$ of the sky south of $\delta <…

宇宙学与河外天体物理 · 物理学 2015-05-20 Keith Bannister , Tara Murphy , Bryan M. Gaensler , Richard Hunstead , Shami Chatterjee

This is the first of two papers describing the second data release (DR2) of the Australia Telescope Large Area Survey (ATLAS) at 1.4 GHz, which comprises deep wide-field observations in total intensity, linear polarization, and circular…

星系天体物理 · 物理学 2015-06-19 C. A. Hales , R. P. Norris , B. M. Gaensler , E. Middelberg , K. E. Chow , A. M. Hopkins , M. T. Huynh , E. Lenc , M. Y. Mao

[Abridged] Physical and evolutionary properties of the sub-mJy radio population are not entirely known. The radio/optical analysis of the ATESP 5 GHz sample has revealed a significant class of compact flat/inverted radio-spectrum sources…

宇宙学与河外天体物理 · 物理学 2015-05-14 I. Prandoni , H. R. de Ruiter , R. Ricci , P. Parma , L. Gregorini , R. D. Ekers

We present a new catalogue of the RATAN-600 multi-frequency measurements for BL Lac objects. The purpose of this catalogue is to compile the BL Lac multi-frequency data that is acquired with the RATAN-600 simultaneously at several…

星系天体物理 · 物理学 2014-12-03 M. G. Mingaliev , Yu. V. Sotnikova , R. Yu. Udovitskiy , T. V. Mufakharov , E. Nieppola , A. K. Erkenov

In order to study transient phenomena in the Universe, existing and forthcoming imaging surveys are covering wide areas of sky repeatedly over time, with a range of cadences, point spread functions, and depths. We describe here a framework…

天体物理仪器与方法 · 物理学 2023-08-11 D. L. Shupe , F. J. Masci , R. Chary , G. Helou , A. L. Faisst , R. M. Cutri , T. Y. Brooke , J. A. Surace , K. A. Marsh

This paper is the second in a pair of articles presenting data release 1 (DR1) of the Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS), the largest single open-time key project carried out with the Herschel Space Observatory.…