Results 61 to 70 of about 405,217 (280)

The Hubble Catalog of Variables

open access: yesEPJ Web of Conferences, 2017
We aim to construct an exceptionally deep (V ≲ 27) catalog of variable objects in selected Galactic and extragalactic fields visited multiple times by the Hubble Space Telescope (HST).
Sokolovsky K.   +24 more
doaj   +1 more source

IRAC Mid-Infrared Imaging of the Hubble Deep Field-South: Star Formation Histories and Stellar Masses of Red Galaxies at z > 2 [PDF]

open access: yes, 2005
We present deep 3.6-8 μm imaging of the Hubble Deep Field-South with the Infrared Array Camera (IRAC) on the Spitzer Space Telescope. We study distant red galaxies (DRGs) at z > 2 selected by Js-Ks > 2.3 and compare them with a sample of Lyman break ...
I. Labbé   +13 more
semanticscholar   +1 more source

MUSE deep-fields: the Ly α luminosity function in the Hubble Deep Field-South at 2.91 < z < 6.64 [PDF]

open access: yes, 2016
We present the first estimate of the Ly{\alpha} luminosity function using blind spectroscopy from the Multi Unit Spectroscopic Explorer, MUSE, in the Hubble Deep Field South. Using automatic source-detection software, we assemble a homogeneously-detected
A. Drake   +16 more
semanticscholar   +1 more source

The Symmetry, Color and Morphology of Galaxies in the Hubble Deep Field [PDF]

open access: yes, 1998
We present a new method of utilizing the color and asymmetry values for galaxies in the Hubble Deep Field to determine both their morphological features and physical parameters.
Bershady, Matthew A.   +1 more
core   +3 more sources

Weak cosmic growth in coupled dark energy with a Lagrangian formulation

open access: yesPhysics Letters B, 2020
We investigate a dark energy scenario in which a canonical scalar field ϕ is coupled to the four velocity ucμ of cold dark matter (CDM) through a derivative interaction ucμ∂μϕ.
Ryotaro Kase, Shinji Tsujikawa
doaj   +1 more source

HALO7D. III. Chemical Abundances of Milky Way Halo Stars from Medium-resolution Spectra

open access: yesThe Astrophysical Journal, 2023
The Halo Assembly in Lambda Cold Dark Matter: Observations in 7 Dimensions (HALO7D) survey measures the kinematics and chemical properties of stars in the Milky Way (MW) stellar halo to learn about the formation of our Galaxy.
Kevin A. McKinnon   +6 more
doaj   +1 more source

The Nature of Compact Galaxies in the Hubble Deep Field. II. Spectroscopic Properties and Implications for the Evolution of the Star Formation Rate Density of the Universe [PDF]

open access: yes, 1997
We present a spectroscopic study of 51 compact field galaxies with redshifts z < 1.4 and apparent magnitudes I814 < 23.74 in the flanking fields of the Hubble Deep Field.
R. Guzmán   +7 more
semanticscholar   +1 more source

NGDEEP Epoch 1: The Faint End of the Luminosity Function at z ∼ 9–12 from Ultradeep JWST Imaging

open access: yesThe Astrophysical Journal Letters, 2023
We present a robust sample of very high redshift galaxy candidates from the first epoch of JWST/NIRCam imaging from the Next Generation Deep Extragalactic Exploratory Public (NGDEEP) survey. The NGDEEP NIRCam imaging, spanning 9.7 arcmin ^2 in the Hubble
Gene C. K. Leung   +28 more
doaj   +1 more source

Evolution of the Galaxy Population Based on Photometric Redshifts in the Hubble Deep Field [PDF]

open access: yes, 1996
This paper presents the results of a photometric redshift study of galaxies in the Hubble Deep Field (HDF). The method of determining redshifts from broadband colors is described, and the dangers inherent in using it to estimate redshifts, particularly ...
Marcin Sawicki, H. Lin, H. Yee
semanticscholar   +1 more source

Redshifts in the Hubble Deep Field South [PDF]

open access: yesThe Astronomical Journal, 2003
Accepted for publication in the Astronomical ...
Sawicki, M, Mallén-Ornelas, G
openaire   +3 more sources

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