[ITAL]HUBBLE SPACE TELESCOPE[/ITAL][ITAL]Hubble Space Telescope[/ITAL] NICMOS Observations of the Host Galaxies of Powerful Radio Sources: Does Size Matter?

2000 ◽  
Vol 120 (5) ◽  
pp. 2300-2330 ◽  
Author(s):  
W. H. de Vries ◽  
C. P. O’Dea ◽  
P. D. Barthel ◽  
C. Fanti ◽  
R. Fanti ◽  
...  
Keyword(s):  
Hubble Space Telescope ◽  
Radio Sources ◽  
Powerful Radio ◽  
Host Galaxies ◽  
Space Telescope ◽  
Size Matter

Hubble Space Telescope Imaging of Compact Steep Spectrum Radio Sources

1997 ◽  
Vol 110 (2) ◽  
pp. 191-211 ◽  
Author(s):  
W. H. de Vries ◽  
C. P. O'Dea ◽  
S. A. Baum ◽  
W. B. Sparks ◽  
J. Biretta ◽  
...  
Keyword(s):  
Hubble Space Telescope ◽  
Radio Sources ◽  
Space Telescope ◽  
Spectrum Radio

scholarly journals Radio Source Environments at Redshifts > 0.5

1996 ◽  
Vol 175 ◽  
pp. 321-322
Author(s):  
M. Lacy ◽  
S. Rawlings ◽  
M. Wold ◽  
A. Bunker ◽  
K.M. Blundell ◽  
...  
Keyword(s):  
Radio Source ◽  
High Redshift ◽  
Elliptical Galaxies ◽  
Radio Sources ◽  
Powerful Radio ◽  
Host Galaxies ◽  
Local Universe ◽  
Wide Range ◽  
Age Of The Universe ◽  
The Universe

The most powerful radio sources in the local Universe are found in giant elliptical galaxies. Looking back to a redshift of 0.5 (≈ half the age of the Universe for ω = 1), we see that these host galaxies are increasingly found in moderately rich clusters. This fact gives us hope that radio sources can be used as tracers of high density environments at high redshift. By exploiting radio source samples selected over a wide range in luminosity (Blundell et al., these proceedings), we will also be able to test whether the luminosities of radio sources are correlated with their environments.

[ITAL]Hubble Space Telescope[/ITAL] Observations of Obscuration Rings in Hercules A: Implications for Energy Transport in Powerful Radio Galaxies

1996 ◽  
Vol 465 (1) ◽  
pp. L5-L8 ◽  
Author(s):  
Stefi A. Baum ◽  
Christopher P. O'Dea ◽  
Sigrid de Koff ◽  
William Sparks, ◽  
Jeffrey J. E. Hayes ◽  
...  
Keyword(s):  
Energy Transport ◽  
Hubble Space Telescope ◽  
Radio Galaxies ◽  
Powerful Radio ◽  
Space Telescope

scholarly journals Chandra and Hubble Space Telescope observations of dark gamma-ray bursts and their host galaxies

2019 ◽  
Vol 486 (3) ◽  
pp. 3105-3117 ◽  
Author(s):  
A A Chrimes ◽  
A J Levan ◽  
E R Stanway ◽  
J D Lyman ◽  
A S Fruchter ◽  
...  
Keyword(s):  
Morphological Analysis ◽  
Gamma Ray ◽  
Hubble Space Telescope ◽  
High Redshift ◽  
Host Population ◽  
Host Galaxy ◽  
Host Galaxies ◽  
Space Telescope ◽  
X Ray ◽  
Dust Component

Abstract We present a study of 21 dark gamma-ray burst (GRB) host galaxies, predominantly using X-ray afterglows obtained with the Chandra X-Ray Observatory (CXO) to precisely locate the burst in deep Hubble Space Telescope (HST) imaging of the burst region. The host galaxies are well-detected in F160W in all but one case and in F606W imaging in 60 per cent of cases. We measure magnitudes and perform a morphological analysis of each galaxy. The asymmetry, concentration, and ellipticity of the dark burst hosts are compared against the host galaxies of optically bright GRBs. In agreement with other studies, we find that dark GRB hosts are redder and more luminous than the bulk of the GRB host population. The distribution of projected spatial offsets for dark GRBs from their host galaxy centroids is comparable to that of optically bright bursts. The dark GRB hosts are physically larger, more massive and redder, but are morphologically similar to the hosts of bright GRBs in terms of concentration and asymmetry. Our analysis constrains the fraction of high redshift (z > 5) GRBs in the sample to 14 per cent, implying an upper limit for the whole long-GRB population of ≤4.4 per cent. If dust is the primary cause of afterglow darkening amongst dark GRBs, the measured extinction may require a clumpy dust component in order to explain the observed offset and ellipticity distributions.

scholarly journals Through the kaleidoscope: star formation the host galaxies of radio-AGN

2013 ◽  
Vol 9 (S304) ◽  
pp. 323-326
Author(s):  
Marios Karouzos ◽  
Myungshin Im ◽  
Markos Trichas ◽  
Tomo Goto ◽  
Matt Malkan ◽  
...  
Keyword(s):  
Star Formation ◽  
Feedback Mechanism ◽  
Host Galaxy ◽  
Radio Sources ◽  
Radio Luminosity ◽  
Powerful Radio ◽  
Host Galaxies ◽  
Radio Jets ◽  
The North ◽  
Multi Wavelength

AbstractThere exist strong evidence supporting the co-evolution of central supermassive black holes and their host galaxies; however it is still under debate how such a relation comes about and whether it is relevant for all or only a subset of galaxies. A rich multi-wavelength dataset is available for the North Ecliptic Pole field, most notably surveyed by the AKARI infrared space telescope. We investigate the star-formation properties of the host galaxies of radio-AGN together with the radio feedback mechanism, potentially responsible for the eventual quenching of star formation. Using broadband SED modelling, the nuclear and host galaxy components of these sources are studied as a function of their radio luminosity. Here we present results concerning the AGN content of the radio sources in this field, while offering evidence supporting a “maintenance” type of feedback from powerful radio-jets.

scholarly journals A Hubble Space Telescope imaging study of four FeLoBAL quasar host galaxies

2017 ◽  
Vol 475 (3) ◽  
pp. 3213-3239 ◽  
Author(s):  
D Lawther ◽  
M Vestergaard ◽  
X Fan
Keyword(s):  
Hubble Space Telescope ◽  
Imaging Study ◽  
Host Galaxies ◽  
Space Telescope

scholarly journals Galaxies with Binary Nuclei

2013 ◽  
Vol 9 (S304) ◽  
pp. 363-370
Author(s):  
Yervant Terzian ◽  
Edward Khachikian
Keyword(s):  
Hubble Space Telescope ◽  
Radio Galaxies ◽  
Active Galaxies ◽  
Emission Lines ◽  
Special Astrophysical Observatory ◽  
Host Galaxies ◽  
Strong Emission ◽  
Space Telescope ◽  
Byurakan Astrophysical Observatory ◽  
The Common

AbstractIt is known that among active galaxies (AG) with strong emission lines (UV-galaxies, Sy1 and Sy2, Markarian and Kazarian galaxies, radio-galaxies, QSOs host galaxies and so on) there is a large percentage of objects with double and multiple (or complex) nuclei. The common sizes of these nuclei are of the order of a few hundred parsecs or kiloparsecs. We shall discuss the results of morphological and spectroscopic observations of a number of “active galaxies” carried out with the 5m Palomar telescope, 2.6m telescope of Ambartsumian Byurakan Astrophysical Observatory, 6m telescope of Special Astrophysical Observatory in Russia, and newer Hubble Space Telescope data.

[ITAL]Hubble Space Telescope[/ITAL] Imaging of [CLC][ITAL]z[/ITAL] ≥ 0.4[/CLC] Quasar Host Galaxies Selected by Quasar Radio and Optical Properties

1997 ◽  
Vol 480 (2) ◽  
pp. L95-L08 ◽  
Author(s):  
Eric J. Hooper ◽  
Chris D. Impey ◽  
Craig B. Foltz
Keyword(s):  
Optical Properties ◽  
Hubble Space Telescope ◽  
Host Galaxies ◽  
Space Telescope

scholarly journals The host galaxies and explosion sites of long-duration gamma ray bursts: Hubble Space Telescope near-infrared imaging

2017 ◽  
pp. stx220 ◽  
Author(s):  
J. D. Lyman ◽  
A. J. Levan ◽  
N. R. Tanvir ◽  
J. P. U. Fynbo ◽  
J. T. W. McGuire ◽  
...  
Keyword(s):  
Near Infrared ◽  
Gamma Ray ◽  
Infrared Imaging ◽  
Hubble Space Telescope ◽  
Gamma Ray Bursts ◽  
Host Galaxies ◽  
Near Infrared Imaging ◽  
Space Telescope ◽  
Long Duration

scholarly journals The Hubble Space Telescope Key Project to Measure the Hubble Constant

1999 ◽  
Vol 183 ◽  
pp. 17-30 ◽  
Author(s):  
Wendy L. Freedman ◽  
Jeremy R. Mould ◽  
Robert C. Kennicutt ◽  
Barry F. Madore
Keyword(s):  
Hubble Space Telescope ◽  
Hubble Constant ◽  
Distance Scale ◽  
General Assembly ◽  
Host Galaxies ◽  
Space Telescope ◽  
Type Ia Supernova ◽  
Type Ia ◽  
Extragalactic Distance Scale

A Joint Discussion on the extragalactic distance scale and the Hubble constant took place fifteen years ago, at the 1982 XVIIIth General Assembly of the IAU, held in Patras, Greece. At that time, the newest applications of infrared photometers to Tully-Fisher measurements (Aaronson 1983) and Cepheid distances (Madore 1983) were reported. CCDs were just coming into use and had not yet been applied to extragalactic distance determinations; all of the extragalactic Cepheid distances were based on photographic Argelander (eye-estimated) photometry (Tammann and Sandage 1983 and references therein). No Cepheid distances to type Ia supernova-host galaxies were available.

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