Most Stars Are Born in Clusters, Some Leave “Home”

Alan Boss

New modeling studies from DTM’s Alan Boss demonstrate that most of the stars we see were formed when unstable clusters of newly formed protostars broke up. These protostars are born out of rotating clouds of dust and gas, which act as nurseries for star formation. Rare clusters of multiple protostars remain stable and mature into multi-star systems. The unstable ones will eject stars until they achieve stability and end up as single or binary stars. The work is published in The Astrophysical Journal.


DTM Celebrated Its Second Annual Postdoc Appreciation Day

Postdoc Week

In celebration of National Postdoc Appreciation Week, DTM and Carnegie's Geophysical Laboratory held an ice cream social on Wednesday, 17 September 2014 in Tuve Hall.

The Broad Branch Road campus prides itself on the vast diversity of the postdoctoral associates and fellows and the global community that is shared. To honor that diversity, an "Around the World" Ice Cream Social was held, honoring each postdoc's home country with it's flag. All of the postdocs from the BBR campus were invited and were treated to an ice cream sundae bar with international ice creams, sorbets and gelato, and a vast bounty of delectable toppings. The campus would not be the same without our wonderful postdocs, and they are truly appreciated!

For more photos from the event, click here.


Rizo Collected Ancient Rocks from One of the Oldest Terrains on Earth

Hanika Rizo

While in pursuit of her research about early Earth’s evolution, DTM Postdoc Hanika Rizo collected rock samples from an ancient terrain in the polar bear populated Canadian province of Northern Labrador this summer.

In collaboration with DTM Acting Director, Rick Carlson, and former postdoctoral fellow Jonathan O’Neil (University of Ottawa), Rizo gathered rock samples of both volcanic and sedimentary origins that could shed a new light on the geological processes that shaped our planet. 


Faherty and Team Discover Water Ice Clouds on a Brown Dwarf Just 7.3 Light-Years from Earth


Just 7.3 light-years from Earth, astronomers have found signs of water ice clouds on a the coldest giant brown dwarf ever found.    

DTM Postdoc Jackie Faherty and team scanned the sky for three nights in May 2014 using the 6.5-meter Magellan Baade telescope in Chile to take 151 near-infrared images, which later revealed the discovery.

The report will appear in The Astrophysical Journal Letters here. 


Nittler is Part of the Stardust Research Team that Discovered 7 Grains from Outside our Solar System


Where did our solar system come from? In 2006, NASA’s Stardust spacecraft returned to Earth with samples of a comet’s dust grains containing clues that could help researchers answer this question. Now, almost a decade later, scores of scientists have researched these dust particles and identified 7 grains that most likely came from outside our solar system. 

In 1999, the Stardust spacecraft launched into space aboard a Delta II rocket from Cape Canaveral Air Station, Florida. It’s objective was to fly through the wake of comet Wild-2 near Jupiter and capture cometary dust in aerogel tiles and aluminum foils mounted on the front of a two-sided collector. In addition, collectors were mounted on the rear of the spacecraft to catch particles from the snowstorm of interstellar dust streaming through the galaxy. In 2006, Stardust flew by Earth and dropped by parachute the separate tennis racquet-shaped comet and interstellar dust collectors. Since then, a research team consisting of 66 scientists from 7 different countries along with 30,000 citizen scientists, self-proclaimed “Dusters” using the online Stardust@home project, have been examining millions of microscopic images of interstellar dust.

DTM Staff Scientist Larry Nittler is the 13th among the 66 authors on Stardust’s paper in the August 15th issue of Science entitled, “Evidence for interstellar origin of seven dust particles collected by the Stardust spacecraft, detailing the results from Stardust.”


DTM Postdoctoral Fellowship Openings


DTM offers a variety of postdoctoral fellowship and associate positions. Fellows and associates can engage in a wide range of experiences that include designing and constructing specialized experimental devices; participating in seminars and symposia; and gathering and analyzing data. These projects are shaped to preserve maximum flexibility and to fit the scientific interests of both Staff Members and fellows. 

Fellows at DTM are regarded as scientific colleagues, free to chart their individual research agendas. Every fellow has access to the full staff of DTM and the other departments of the Carnegie Institution, as well as to a group of nonresident collaborators and visiting investigators from all parts of the world. Cooperating institutions, universities, government agencies, and private organizations provide further substantial resources for scholarship. There are also joint fellows of DTM and the Geophysical Laboratory in areas of mutual interest.

Go to our Postdoctoral Fellowships page to learn more about DTM's upcoming fellowship openings.