scholarly journals The Contribution of Late-Type/Irregulars to the Faint Galaxy Counts from Hubble Space Telescope Medium-Deep Survey Images

1995 ◽  
Vol 453 ◽  
pp. 48 ◽  
Author(s):  
Simon P. Driver ◽  
Rogier A. Windhorst ◽  
Richard E. Griffiths
Keyword(s):  
Hubble Space Telescope ◽  
Late Type ◽  
Space Telescope ◽  
Faint Galaxy ◽  
Deep Survey

The Hubble Space Telescope Medium Deep Survey with the Wide Field and Planetary Camera. 1: Methodology and results on the field near 3C 273

1994 ◽  
Vol 437 ◽  
pp. 67 ◽  
Author(s):  
R. E. Griffiths ◽  
K. U. Ratnatunga ◽  
L. W. Neuschaefer ◽  
S. Casertano ◽  
M. Im ◽  
...  
Keyword(s):  
Hubble Space Telescope ◽  
Wide Field ◽  
Space Telescope ◽  
Deep Survey

scholarly journals Disk and Bulge Morphology of WFPC2 Galaxies: The [ITAL]HUBBLE SPACE TELESCOPE[/ITAL] Medium Deep Survey Database

1999 ◽  
Vol 118 (1) ◽  
pp. 86-107 ◽  
Author(s):  
Kavan U. Ratnatunga ◽  
Richard E. Griffiths ◽  
Eric J. Ostrander
Keyword(s):  
Hubble Space Telescope ◽  
Space Telescope ◽  
Deep Survey

scholarly journals Outside the Lyman-break box: detecting Lyman continuum emitters at 3.5 < z < 5.1 with CLAUDS

2020 ◽  
Vol 494 (4) ◽  
pp. 4986-5007 ◽  
Author(s):  
U Meštrić ◽  
E V Ryan-Weber ◽  
J Cooke ◽  
R Bassett ◽  
M Sawicki ◽  
...  
Keyword(s):  
Intergalactic Medium ◽  
Hubble Space Telescope ◽  
High Redshift ◽  
Large Area ◽  
Redshift Range ◽  
Space Telescope ◽  
High Redshift Galaxies ◽  
Lyman Continuum ◽  
Deep Survey ◽  
Individual Galaxies

ABSTRACT Identifying non-contaminated sample of high-redshift galaxies with escaping Lyman continuum (LyC) flux is important for understanding the sources and evolution of cosmic reionization. We present CLAUDS (CFHT Large Area u-band deep survey) u-band photometry of the COSMOS field to probe LyC radiation from spectroscopically confirmed galaxies at $z$ ≥ 3.5 and outside the standard Lyman-break galaxy colour-selection expectations. Complementary to the CLAUDS data, we use Subaru multifilter photometry, Hubble Space Telescope (HST) multifilter imaging, and the spectroscopic surveys D10K, VUDS, and 3D-HST. We present a sample of Lyman continuum galaxy (LCG) candidates in the redshift range 3.5 ≲ $z$ ≲ 5.1. Here, we introduce 5 LCG candidates, where two are flagged quality 1 and three quality 2. The estimated $f_{\rm esc}^{\rm abs}$ for quality 1 candidates are in the range $\sim 5 - 73{{\ \rm per\ cent}}$ and $\sim 30 - 93{{\ \rm per\ cent}}$. These estimates are based on our derived parameters from individual galaxies as inputs to a range of BPASS models as well as mean intergalactic medium (IGM) and maximal intergalactic and circumgalactic media (IGM+CGM) transmission. We conclude that our search for LCGs is most likely biased to lines of sight with low H i densities or free from Lyman limit systems. Our two best LCG candidates have EW (Lyα) ≤ 50 Å and we find no correlation or anticorrelation between EW (Lyα), $f_{\rm esc}^{\rm abs}$, and Robs, the ratio of ionizing to non-ionizing observed flux in the measured passbands. Stacking candidates without solid LyC detections (S/N &lt; 3) results in an estimated $f_{\rm esc}^{\rm abs}$ from galaxies not greater than $1{{\ \rm per\ cent}}$.

scholarly journals Caught in the Act: the identification of the galaxies responsible for the faint blue excess

1996 ◽  
Vol 171 ◽  
pp. 221-224
Author(s):  
Simon P. Driver ◽  
Rogier A. Windhorst ◽  
Richard E. Griffiths
Keyword(s):  
Hubble Space Telescope ◽  
Early Type ◽  
Late Type ◽  
Space Telescope ◽  
Normal Galaxies ◽  
Number Counts

We summarise recent Hubble Space Telescope results on the morphology of faint field galaxies. Our two principle results are: (1) the galaxies responsible for the faint blue excess have late-type/irregular morphology and (2) the number counts of normal galaxies, ellipticals and early-type spirals, are well fit by standard no-evolution models implying that the giant population was in place and mature by a redshift of ≥ 0.7.

Galaxy Clustering Statistics of Hubble Space Telescope Medium Deep Survey WF/PC Images

1995 ◽  
Vol 453 ◽  
pp. 559 ◽  
Author(s):  
L. W. Neuschaefer ◽  
K. U. Ratnatunga ◽  
R. E. Griffiths ◽  
S. Casertano ◽  
M. Im
Keyword(s):  
Hubble Space Telescope ◽  
Galaxy Clustering ◽  
Space Telescope ◽  
Deep Survey

A [ITAL]Hubble Space Telescope[/ITAL] Census of Nuclear Star Clusters in Late-Type Spiral Galaxies. I. Observations and Image Analysis

2002 ◽  
Vol 123 (3) ◽  
pp. 1389-1410 ◽  
Author(s):  
Torsten Böker ◽  
Seppo Laine ◽  
Roeland P. van der Marel ◽  
Marc Sarzi ◽  
Hans-Walter Rix ◽  
...  
Keyword(s):  
Image Analysis ◽  
Spiral Galaxies ◽  
Hubble Space Telescope ◽  
Star Clusters ◽  
Late Type ◽  
Space Telescope

Cosmic Gravitational Shear from the Hubble Space Telescope Medium Deep Survey

2003 ◽  
Vol 598 (2) ◽  
pp. L71-L74 ◽  
Author(s):  
Stefano Casertano ◽  
Kavan U. Ratnatunga ◽  
Richard E. Griffiths
Keyword(s):  
Hubble Space Telescope ◽  
Space Telescope ◽  
Deep Survey

Structure and photometry of an I less than 20.5 galaxy sample from the Hubble Space Telescope medium deep survey

1995 ◽  
Vol 444 ◽  
pp. 21 ◽  
Author(s):  
Andrew C. Phillips ◽  
Matthew A. Bershady ◽  
Duncan A. Forbes ◽  
David C. Koo ◽  
Garth D. Illingworth ◽  
...  
Keyword(s):  
Hubble Space Telescope ◽  
Space Telescope ◽  
Deep Survey ◽  
Galaxy Sample

Structural Parameters of Faint Galaxies from Prerefurbishment Hubble Space Telescope Medium Deep Survey Observations

1995 ◽  
Vol 453 ◽  
pp. 599 ◽  
Author(s):  
S. Casertano ◽  
K. U. Ratnatunga ◽  
R. E. Griffiths ◽  
M. Im ◽  
L. W. Neuschaefer ◽  
...  
Keyword(s):  
Hubble Space Telescope ◽  
Structural Parameters ◽  
Space Telescope ◽  
Deep Survey

Erratum: “The Structure of Nuclear Star Clusters in Nearby Late-type Spiral Galaxies from Hubble Space Telescope Wide Field Camera 3 Imaging” (2015, AJ, 149 170)

2019 ◽  
Vol 158 (6) ◽  
pp. 260
Author(s):  
Daniel J. Carson ◽  
Aaron J. Barth ◽  
Anil C. Seth ◽  
Mark den Brok ◽  
Michele Cappellari ◽  
...  
Keyword(s):  
Spiral Galaxies ◽  
Hubble Space Telescope ◽  
Star Clusters ◽  
Wide Field ◽  
Late Type ◽  
Space Telescope
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