Astronomers Find One of the Youngest and Brightest Galaxies in the Early Universe
Title
Astronomers Find One of the Youngest and Brightest Galaxies in the Early Universe
Title
Object Name:
Abell 1689
Object_Name
Abell 1689
Object Name
Acknowledgement:
*Credit:* NASA [ http://www.nasa.gov/]; ESA [ http://www.spacetel…]; L. Bradley (Johns Hopkins University); R. Bouwens (University of California, Santa Cruz); H. Ford (Johns Hopkins University); and G. Illingworth (University of California, Santa Cruz)
Acknowledgement
*Credit:* NASA [ http://www.nasa.gov/]; ESA [ http://www.spacetel…]; L. Bradley (Johns Hopkins University); R. Bouwens (University of California, Santa Cruz); H. Ford (Johns Hopkins University); and G. Illingworth (University of California, Santa Cruz)
Acknowledgement
Fast Facts:
Technical facts about this news release:
About the Object Object Name: Abell 1689 Object Description: Galaxy Cluster Position (J2000): R.A. 13h11m 34s.20 Dec. -01° 21' 56".0 Constellation: Virgo Distance: The distance to the lensing cluster is 2.2 billion light-years (675 megaparsecs). The distance to the lensed galaxy is about 12.8 billion light-years. About the Data Science Team: L. Bradley (The Johns Hopkins University), R. Bouwens (University of California - Santa Cruz), H. Ford (The Johns Hopkins University), G. Illingworth (University of California - Santa Cruz), M. Jee (University of California - Davis), N. Benítez (Instituto de Matemáticas y Física Fundamental), T. Broadhurst (Tel Aviv University), M. Franx (Leiden Observatory), B. Frye (Dublin City University), L. Infante (Pontificia Universidad Católica), V. Motta (Universidad de Valparaíso), P. Rosati (European Southern Observatory), R. White (Space Telescope Science Institute), and W. Zheng (The Johns Hopkins University). Data:
Hubble ACS
The ACS data used in this study was from HST proposal 9289.
Hubble NICMOS
The NICMOS data used in this study was from HST proposals: 10150 and 10996.
Spitzer
he archival data used in this study was from Spitzer proposal 20439.
Instrument: ACS/WFC NICMOS/NIC3 IRAC Filters: F475W ("g"), F625W ("r"), F775W ("i"), F850LP ("z") F110W ("J"), F160W ("H") IRAC 1 3.6 microns IRAC 2 4.5 microns Exposure Date(s): June 12-21, 2006 F110W: March 18-May 28, 2005 F160W: June 14, 2007 Feb 11-12, 2006 Exposure Time: 13.2 hours F110W: 13.4 hours F160W: 0.7 hours 22.2 hours About the Image Image Credit: NASA, ESA, L. Bradley (JHU), R. Bouwens (UCSC), H. Ford (JHU), and G. Illingworth (UCSC) Release Date: February 12, 2008 Color:
The color image of Abell 1689 is a composite of separate exposures made by the ACS instrument on the Hubble Space Telescope. Three filters were used to sample broad wavelength ranges. The color results from assigning different hues (colors) to each monochromatic image. In this case, the assigned colors are:
F475W ("g") blue F625W ("r") green F850LP ("z") red
About the Object Object Name: Abell 1689 Object Description: Galaxy Cluster Position (J2000): R.A. 13h11m 34s.20 Dec. -01° 21' 56".0 Constellation: Virgo Distance: The distance to the lensing cluster is 2.2 billion light-years (675 megaparsecs). The distance to the lensed galaxy is about 12.8 billion light-years. About the Data Science Team: L. Bradley (The Johns Hopkins University), R. Bouwens (University of California - Santa Cruz), H. Ford (The Johns Hopkins University), G. Illingworth (University of California - Santa Cruz), M. Jee (University of California - Davis), N. Benítez (Instituto de Matemáticas y Física Fundamental), T. Broadhurst (Tel Aviv University), M. Franx (Leiden Observatory), B. Frye (Dublin City University), L. Infante (Pontificia Universidad Católica), V. Motta (Universidad de Valparaíso), P. Rosati (European Southern Observatory), R. White (Space Telescope Science Institute), and W. Zheng (The Johns Hopkins University). Data:
Hubble ACS
The ACS data used in this study was from HST proposal 9289.
Hubble NICMOS
The NICMOS data used in this study was from HST proposals: 10150 and 10996.
Spitzer
he archival data used in this study was from Spitzer proposal 20439.
Instrument: ACS/WFC NICMOS/NIC3 IRAC Filters: F475W ("g"), F625W ("r"), F775W ("i"), F850LP ("z") F110W ("J"), F160W ("H") IRAC 1 3.6 microns IRAC 2 4.5 microns Exposure Date(s): June 12-21, 2006 F110W: March 18-May 28, 2005 F160W: June 14, 2007 Feb 11-12, 2006 Exposure Time: 13.2 hours F110W: 13.4 hours F160W: 0.7 hours 22.2 hours About the Image Image Credit: NASA, ESA, L. Bradley (JHU), R. Bouwens (UCSC), H. Ford (JHU), and G. Illingworth (UCSC) Release Date: February 12, 2008 Color:
The color image of Abell 1689 is a composite of separate exposures made by the ACS instrument on the Hubble Space Telescope. Three filters were used to sample broad wavelength ranges. The color results from assigning different hues (colors) to each monochromatic image. In this case, the assigned colors are:
F475W ("g") blue F625W ("r") green F850LP ("z") red
*Title*:Astronomers Find One of the Youngest and Brightest Galaxies in the Early Universe
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*Title*:Astronomers Find One of the Youngest and Brightest Galaxies in the Early Universe
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*News Release Number:*: STScI-2008-08a
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*News Release Number:*: STScI-2008-08a
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*Description*:
A massive cluster of yellowish galaxies is seemingly caught in a spider web of eerily distorted background galaxies in the left-hand image, taken with the Advanced Camera for Surveys (ACS) aboard NASA's Hubble Space Telescope.
The gravity of the cluster's trillion stars acts as a cosmic "zoom lens," bending and magnifying the light of the galaxies located far behind it, a technique called gravitational lensing. The faraway galaxies appear in the Hubble image as arc-shaped objects around the cluster, named Abell 1689. The increased magnification allows astronomers to study remote galaxies in greater detail.
One galaxy is so far away, however, it does not show up in the visible-light image taken with ACS [top, right], because its light is stretched to invisible infrared wavelengths by the universe's expansion.
Astronomers used Hubble's Near Infrared Camera and Multi-Object Spectrometer (NICMOS) and NASA's Spitzer Space Telescope with its Infrared Array Camera (IRAC) ? with help from the gravitational lensing cluster ? to see the faraway galaxy.
The distant galaxy, dubbed A1689-zD1, appears as a grayish-white smudge in the close- up view taken with Hubble's NICMOS [center, right], and as a whitish blob in the Spitzer IRAC close-up view [bottom, right]. The galaxy is brimming with star birth. Hubble and Spitzer worked together to show that it is one of the youngest galaxies ever discovered. Astronomers estimate that the galaxy is 12.8 billion light-years away. Abell 1689 is 2.2 billion light-years away.
A1689-zD1 was born during the middle of the "dark ages," a period in the early universe when the first stars and galaxies were just beginning to burst to life. The dark ages lasted from about 400,000 to roughly a billion years after the Big Bang. Astronomers think that A1689-zD1 was one of the galaxies that helped end the dark ages.
The ACS images were taken in 2002, the NICMOS images in 2005 and 2007, and the Spitzer IRAC images in 2006.
note
*Description*:
A massive cluster of yellowish galaxies is seemingly caught in a spider web of eerily distorted background galaxies in the left-hand image, taken with the Advanced Camera for Surveys (ACS) aboard NASA's Hubble Space Telescope.
The gravity of the cluster's trillion stars acts as a cosmic "zoom lens," bending and magnifying the light of the galaxies located far behind it, a technique called gravitational lensing. The faraway galaxies appear in the Hubble image as arc-shaped objects around the cluster, named Abell 1689. The increased magnification allows astronomers to study remote galaxies in greater detail.
One galaxy is so far away, however, it does not show up in the visible-light image taken with ACS [top, right], because its light is stretched to invisible infrared wavelengths by the universe's expansion.
Astronomers used Hubble's Near Infrared Camera and Multi-Object Spectrometer (NICMOS) and NASA's Spitzer Space Telescope with its Infrared Array Camera (IRAC) ? with help from the gravitational lensing cluster ? to see the faraway galaxy.
The distant galaxy, dubbed A1689-zD1, appears as a grayish-white smudge in the close- up view taken with Hubble's NICMOS [center, right], and as a whitish blob in the Spitzer IRAC close-up view [bottom, right]. The galaxy is brimming with star birth. Hubble and Spitzer worked together to show that it is one of the youngest galaxies ever discovered. Astronomers estimate that the galaxy is 12.8 billion light-years away. Abell 1689 is 2.2 billion light-years away.
A1689-zD1 was born during the middle of the "dark ages," a period in the early universe when the first stars and galaxies were just beginning to burst to life. The dark ages lasted from about 400,000 to roughly a billion years after the Big Bang. Astronomers think that A1689-zD1 was one of the galaxies that helped end the dark ages.
The ACS images were taken in 2002, the NICMOS images in 2005 and 2007, and the Spitzer IRAC images in 2006.
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facet_what:
Virgo
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Virgo
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NICMOS
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NICMOS
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Multi-Object Spectrometer
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Multi-Object Spectrometer
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Spectrometer
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Spectrometer
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COMPASS
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COMPASS
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Spitzer Space Telescope
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Spitzer Space Telescope
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galaxies
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galaxies
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Hubble Space Telescope (HST)
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Hubble Space Telescope (HST)
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Near Infrared Camera and Multi-Object Spectrometer (NICMOS)
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Near Infrared Camera and Multi-Object Spectrometer (NICMOS)
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facet_what:
Advanced Communication Technology Satellite (ACTS)
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Advanced Communication Technology Satellite (ACTS)
