English
Related papers

Related papers: Exploring the HI Universe with ASKAP

200 papers

Extragalactic HI astronomy is half a century old. Its maturity dramatically increased in the 1970s, with the commissioning of new powerful facilities. Its contributions to Cosmology are important, from the observation of galaxy rotation…

Astrophysics · Physics 2009-11-13 Riccardo Giovanelli

Neutral hydrogen (HI) is the fundamental component of the interstellar medium. The Galactic Plane Pulsar Snapshot (GPPS) survey is designed for hunting pulsars by using the Five-hundred-meter Aperture Spherical radio Telescope (FAST) from…

Astrophysics of Galaxies · Physics 2022-12-01 Tao Hong , J. L. Han , L. G. Hou , X. Y. Gao , Chen Wang , Tao Wang

IRAC excels at detecting distant objects. Due to a combination of the shapes of the spectral energy distributions of galaxies and the low background achieved from space, IRAC reaches greater depth in comparable exposure time at 3.6 and 4.5…

Astrophysics · Physics 2010-12-13 Pieter van Dokkum , Asantha Cooray , Ivo Labbe , Casey Papovich , Daniel Stern

The new frontier of cosmology will be led by three-dimensional surveys of the large-scale structure of the Universe. Based on its all-sky surveys and redshift depth, the SKA is destined to revolutionize cosmology, in combination with future…

Cosmology and Nongalactic Astrophysics · Physics 2019-08-14 Roy Maartens , Filipe B. Abdalla , Matt Jarvis , Mario G. Santos

HI intensity mapping (IM) is a novel technique capable of mapping the large-scale structure of the Universe in three dimensions and delivering exquisite constraints on cosmology, by using HI as a biased tracer of the dark matter density…

The Cosmic Evolution Survey (COSMOS) is designed to probe the correlated evolution of galaxies, star formation, active galactic nuclei (AGN) and dark matter (DM) with large-scale structure (LSS) over the redshift range z $> 0.5 $ to 6. The…

Hi-GAL, the Herschel infrared Galactic Plane Survey, is an Open Time Key Project of the Herschel Space Observatory. It will make an unbiased photometric survey of the inner Galactic Plane by mapping a two-degree wide strip in the longitude…

Astrophysics of Galaxies · Physics 2015-05-14 S. Molinari , the Hi-GAL Consortium

In a 21 cm neutral hydrogen survey of approximately 55 sq deg out to a redshift of cz=8340 km/s, we have identified 75 extragalactic HI sources. These objects comprise a well-defined sample of extragalactic sources chosen by means that are…

Astrophysics · Physics 2009-10-31 John G. Spitzak , Stephen E. Schneider

Deep wide spectral line surveys with the Square Kilometre Array (SKA) will expand the cosmic frontiers of neutral atomic hydrogen (HI) in galaxies. However, at cosmologically significant redshifts ($z \gtrsim 0.5$), detections will…

Astrophysics of Galaxies · Physics 2025-02-12 Charissa Button , Roger Deane

We describe a simulation for the distribution of galaxies focusing on the atomic Hydrogen content. We aim to make predictions for surveys of galaxies using the redshifted 21 cm line emission. We take the expected distribution of HI masses,…

Cosmology and Nongalactic Astrophysics · Physics 2023-01-18 Sauraj Bharti , J. S. Bagla

AKARI's all-sky survey resolves the far-infrared emission in many thousands of nearby galaxies, providing essential local benchmarks against which the evolution of high-redshift populations can be measured. This review presents some recent…

Cosmology and Nongalactic Astrophysics · Physics 2012-08-20 S. Serjeant , C. Pearson , G. J. White , M. W. L. Smith , Y. Doi

Here I will outline successes and challenges for finding spectral line sources in large data cubes that are dominated by noise. This is a 3D challenge as the sources we wish to catalog are spread over several spatial pixels and spectral…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Baerbel S. Koribalski

The new L-band 7-feed-array at the 100-m telescope in Effelsberg will be used to perform an unbiased fully sampled HI survey of the entire northern hemisphere observing the galactic and extragalactic sky using simultaneously two different…

Astrophysics · Physics 2009-06-23 B. Winkel , J. Kerp , P. Kalberla , R. Keller

Using new cosmological models for galaxy evolution, predictions for the next generation of deep mid-IR surveys are presented for both the ASTRO-F space telescope (due for launch 2003) and the proposed HII/L2 mission (2010). Although ASTRO-F…

Astrophysics · Physics 2007-05-23 Chris Pearson

This survey, once completed, will provide a 3D sample of 200 nearby spiral and irregular galaxies in the Halpha line, using a Fabry-Perot system. The data cubes obtained for each galaxy allow derivation of lines maps, velocity fields and…

Astrophysics · Physics 2007-05-23 Philippe Amram , Olivia Garrido

Identifying the electromagnetic counterparts of gravitational wave (GW) sources detected by upcoming networks of advanced ground-based interferometers will be challenging due in part to the large number of unrelated astrophysical transients…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Brian D. Metzger , David L. Kaplan , Edo Berger

We present the prospects for a future joint gamma-ray and radio survey of southern hemisphere sources using the Fermi Large Area Telescope (LAT) and the upcoming Australian Square Kilometre Array Pathfinder (ASKAP) radio telescope. ASKAP is…

Instrumentation and Methods for Astrophysics · Physics 2013-11-19 Robert A. Cameron

I review the status of science with wide field surveys. For many decades surveys have been the backbone of astronomy, and the main engine of discovery, as we have mapped the sky at every possible wavelength. Surveys are an efficient use of…

Astrophysics · Physics 2009-11-13 A. Lawrence

A blind HI survey of the extragalactic sky behind the southern Milky Way has been conducted with the multibeam receiver on the 64-m Parkes radio telescope. The survey covers the Galactic longitude range 212 < l < 36 and Galactic latitudes…

GPS and CSS sources are thought to represent a young and/or confined sub-population of radio-loud active galactic nuclei (AGN) that are yet to evacuate their surrounding ambient interstellar gas. By studying the gaseous environments of…

Astrophysics of Galaxies · Physics 2022-01-05 James R. Allison , Elaine M. Sadler , Elizabeth K. Mahony , Vanessa A. Moss , Hyein Yoon