ALMA pinpoints early galaxies

A team of astronomers has used ALMA (the Atacama Large Millimeter/submillimeter Array) to pinpoint the locations of over 100 of the most fertile star-forming galaxies in the early Universe.

This image shows close-ups of a selection of these galaxies. The ALMA observations, at submillimetre wavelengths, are shown in orange/red and are overlaid on an infrared view of the region as seen by the IRAC camera on the Spitzer Space Telescope.

The best map so far of these distant dusty galaxies was made using the Atacama Pathfinder Experiment (APEX), but the observations were not sharp enough to unambiguously identify these galaxies in images at other wavelengths. ALMA needed just two minutes per galaxy to pinpoint each one within a comparatively tiny region 200 times smaller than the broad APEX blobs, and with three times the sensitivity.

Telif:

ALMA (ESO/NAOJ/NRAO), J. Hodge et al., A. Weiss et al., NASA Spitzer Science Center

Görüntü Hakkında

Kimlik:eso1318a
Tür:Kolaj
Yayın tarihi:17 Nisan 2013 12:00
Bağlantılı bültenler:eso1318
Boyut:1610 x 1187 px

Nesne Hakkında

Tür:Early Universe : Galaxy
Kategori:Galaxies

Görüntü Türleri

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Renkler & Filtreler

BantTeleskop
Kırmızı ötesi Spitzer Space Telescope
IRAC (Spitzer)
MilimetreAtacama Large Millimeter/submillimeter Array