Gemini News Archive

Companion Explains "Chameleon" Supernova

Using the Gemini South telescope in Chile, Australian astronomers have found a predicted "companion" star left behind when its partner exploded as a very unusual supernova.

Can Mid-Infrared Outflows Masquerade as Circumstellar Disks?

New observations using T-ReCS on Gemini South reveal that in at least one case the mid-infrared emission from a young stellar source is associated with a spectacular outflow.

Eta Carinae: A Spectacular Show From A Convulsing Massive Star

Nathan Smith (University of Colorado) used the high-resolution infrared spectrograph PHOENIX on the Gemini South telescope to observe the bipolar nebula surrounding Eta Carinae, revealing a very well-defined shell structure expanding ballistically at about 500 kilometers per second.

Gemini Images a "Shocking" Skull of Gas

A new Gemini Observatory image of NGC 246, nicknamed the "Skull Nebula," shows what can happen as the outer atmosphere of a fast-moving, dying star lpushes through the complex soufflé of gas and dust that lies between the stars of our galaxy.

New Class of Comets may be Source of Earth's Water

Astronomers from the University of Hawaii's Institute for Astronomy used Gemini North to make "crucial" observations of an object designated as Asteroid 118401. The observations showed that the body is ejecting dust like a comet,

Gemini Finds Young Binary Dwarf Pair is Large and Hot

A U.S.-led team of astronomers, led by Keivan Stassun of Vanderbilt University, has used Gemini South's PHOENIX to uncover the dynamics of the eclipsing brown dwarf pair 2MASS J0532184-0546085.

Mid-Infrared Astronomy in Full Swing at Gemini

Mid-infrared astronomy is in full swing at Gemini with MICHELLE at Gemini North and T-ReCS at Gemini South.

'Imiloa Astronomy Center of Hawai'i Opens in Hilo

A new era in astronomy education and outreach was ushered in with the opening of the ‘Imiloa Astronomy Center of Hawai‘i in Hilo, Hawai‘i.

Gemini Sheds New Light on Dark Matter in NGC 3379

Using Gemini observations of globular clusters in NGC 3379 (M105), a team has found evidence for normal quantities of dark matter in the galaxy’s dark halo.

Gemini South Traces the Flow of Gas into the Grasp of the Black Hole in NGC 1097

An international team recently mapped the gas velocity field and structure within the circumnuclear ring of the SBb LINER/Seyfert 1 galaxy NGC 1097 in unprecedented detail.


NGC 1097 close-up image and artist's conceptions.

The 200th Gemini Paper

The 200th paper is titled “The luminosity function of the fossil group RX J1552.2+2013” by Claudia L. Mendes de Oliveira et al.

Gemini Looks Down the Mouth of an Interstellar Cavern

Known as the N44 superbubble complex, a storm of billowing clouds blown by the winds from massive stars, and set aglow by their light, is the focus of a striking image released today by Gemini Observatory.

Fossil group of galaxies shows dearth of low luminosity members

Astronomers used GMOS on the Gemini North Telescope to determine the first luminosity function (LF) of the galaxies in fossil group RX J1552.2+2013 based on spectroscopy of the member galaxies. 

Gemini North probes the gas, dust and stars at the center of the active galaxy NGC 1068

Two upcoming papers based on optical and mid-infrared data from the Gemini North telescope focus on the dynamic core of the spiral galaxy NGC 1068.

Multi-Instrument Nights at Gemini North and South: a Powerful Approach to Observing

The instrument clusters located at the Cassegrain foci of the Gemini telescopes are perhaps the most unique collections of astronomical instrumentation ever assembled on ground-based telescopes.

Gemini's Nod-&-Shuffle Provides Critical Deep Spectroscopic Data for Supernova Legacy Survey

The unique nod-and-shuffle mode on the Gemini Multi-object Spectrograph (GMOS) provides a reduction of sky line residuals in the red part of the spectrum, making it a better tool to observe the faintest and highest redshift candidates.

Altair Undergoes Successful Performance Upgrade

The recent addition of a field lens in the Altair adaptive optics system has resulted in a significant improvement in near-infrared imaging capabilities at Gemini North.

Cracks or Cryovolcanoes? Surface Geology Creates Clouds on Titan as Observed by Gemini and Keck

Geologic activity on the surface of Saturn's moon Titan is belching puffs of methane gas into the atmosphere of the moon, creating clouds.

Gemini Tracks Down Distance to Short Gamma-Ray Burst For The First Time

Astronomers using the Frederick C. Gillett Gemini Telescope on Mauna Kea have found the source of short flashes of gamma rays from outer space: a collision of two dead stars.