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Galaxies

Image Gallery : Galaxies

A large group of stars, gas, dust, and other bodies that are bound together gravitationally. Our Milky Way is a galaxy. Most galaxies are one of three types: spiral galaxies, elliptical galaxies, and irregular galaxies.

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Vimeo Thumbnail for Jansky Lecture – Dr. Françoise Combes

Jansky Lecture – Dr. Françoise Combesmore_horiz

Vimeo Thumbnail for Galaxies Running Out of Gas

Galaxies Running Out of Gasmore_horiz

These science images show the molecular lines and dust continuum seen in ALMA observations of the pair of early massive galaxies known as SPT0311-58. On left: A composite image combining the dust continuum with molecular lines for H20 and CO. On right: The dust continuum seen in red (top), molecular line for H20 shown in blue (2nd from top), molecular line transitions for carbon monoxide, CO(6-5) shown in purple (middle), CO(7-6) shown in magenta (second from bottom), and CO(10-9) shown in pinks and deep blue (bottom).

Dust Continuum and Molecular Transition Lines for SPT0311-58more_horiz

This animated gif moves through the dust continuum and molecular lines for water and carbon monoxide seen in ALMA observations of the pair of early massive galaxies known as SPT0311-58. This gif begins with a composite combining the dust continuum with molecular lines for H20 and CO. It is followed by the dust continuum seen in red, molecular lines for H20 seen in blue, molecular lines for carbon monoxide, CO(10-9) shown in pinks and deep blue, CO(7-6) shown in magenta, and CO(6-5) shown in purple.

Animated Composite View of SPT0311-58more_horiz

This artist’s conception shows the dust continuum and molecular lines of carbon monoxide and water seen in the pair of galaxies known as SPT0311-58. ALMA data reveals abundant CO and H20 in the larger of the two galaxies, indicating that the molecular Universe was going strong shortly after the elements were initially forged.

Artist’s conception of SPT0311-58more_horiz

The VERTICO—Virgo Environment Traced in Carbon Monoxide—Survey observed the gas reservoirs in 51 galaxies in the nearby Virgo Cluster and found that the extreme environment in the cluster was killing galaxies by robbing them of their star-forming fuel. In this composite image, ALMA’s radio wavelength observations of the VERTICO galaxies’ molecular gas disks are magnified by a factor of 20. They are overlaid on the X-ray image of the hot plasma within the Virgo Cluster.

VERTICO’s View of the Virgo Clustermore_horiz

NGC 4567 and NGC 4568 are two of the thousands of galaxies in the Virgo Cluster, located roughly 65 million light-years from Earth. Observed by the VERTICO—Virgo Environment Traced in Carbon Monoxide—Survey, the two galaxies are among those in the galaxy cluster impacted by extreme physical processes that can lead to the death of galaxies. The galaxies are shown here in composite radio data from ALMA with molecular gas in red/orange and optical data from Hubble Space Telescope with stars in white/blue.

Virgo’s NGC 4567 and NGC 4568more_horiz

Spiral galaxy NGC 4254 is among the thousands of galaxies living and dying by the extreme physical processes in the Virgo Cluster. The galaxy is seen here in radio from ALMA with molecular gas in red/orange and optical from Hubble Space Telescope with stars in white/blue.

Seeing NGC 4254 with VERTICOmore_horiz

This image may look spooky to you, but astronomers see a galaxy. It was captured by the Very Large Array (VLA) as part of the Local Group L-Band Survey (LGLBS) and is an atomic gas emission image of the nearby galaxy IC 1613.

A Spooky View of Galactic Gasmore_horiz

Shown here in composite view, ALMA data (red/orange) reveals filament structures left behind by ram pressure stripping in a Hubble Space Telescope optical view of NGC4921. Scientists believe that these filaments are formed as magnetic fields in the galaxy prevent some matter from being stripped away.

Ram Pressure Stripped Galaxy NGC4921more_horiz

This side-by-side composite shows ALMA (red/orange) data laid over Hubble Space Telescope (optical) images of NGC4921. A new study of the spiral bar galaxy revealed filament structures similar to the Pillars of Creation but significantly larger. These structures are caused by a process known as ram pressure stripping, which pushes gas out of galaxies, leaving them without the material needed to form new stars.

Zooming in on Ram Pressure Stripping in Galaxy NGC4921more_horiz

Vimeo Thumbnail for Ram pressure stripping doesn’t spell immediate end for galaxy NGC4921

Ram pressure stripping doesn’t spell immediate end for galaxy NGC4921more_horiz

Vimeo Thumbnail for The Baseline 7: Mapping The Radio Sky

The Baseline 7: Mapping The Radio Skymore_horiz

Vimeo Thumbnail for The Baseline 6: Rotating Disks In The Early Universe

The Baseline 6: Rotating Disks In The Early Universemore_horiz

Vimeo Thumbnail for NRAO’s Baseline Episode 4: Measuring the Expanding Universe

NRAO’s Baseline Episode 4: Measuring the Expanding Universemore_horiz

Vimeo Thumbnail for NRAO’s Baseline Episode 3: Viewing Active Galaxies

NRAO’s Baseline Episode 3: Viewing Active Galaxiesmore_horiz

Vimeo Thumbnail for NRAO’s Baseline Episode 2: A Black Hole Eats A Star

NRAO’s Baseline Episode 2: A Black Hole Eats A Starmore_horiz

Composite image of NGC 4254, an M type galaxy with a spiral showing at least 8 arms in white, red, an orange.

PHANGS-ALMA Survey: NGC4254more_horiz

Showing images 1 - 18 of 155

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