TechnologyScientists hope James Webb Space Telescope will help solve...

Scientists hope James Webb Space Telescope will help solve ‘dust budget crisis’

-

- Advertisment -spot_imgspot_imgspot_imgspot_img
A triple-star system, nicknamed Apep after an ancient Egyptian deity. The image was captured by an instrument on the European Space Agency's Very Large Telescope.

A triple-star system, nicknamed Apep after an ancient Egyptian deity. The image was captured by an instrument on the European Space Agency’s Very Large Telescope.
(Image credit: IMAGE: ESO, Joseph R. Callingham (ESO))

There’s far too much dust in the universe, compared with what our calculations predict.

This major problem for astronomy, called the “dust budget crisis,” needs to be solved to better predict dust’s crucial role in sheltering stars, birthing planets and hosting molecules key to life as we know it.

Researchers hope to finally sort out the dust issue using the James Webb Space Telescope, which exits months of commissioning July 12 with the release of its first operational images. Once Webb is ready, among its lineup of early-stage observations will be dust-producing Wolf-Rayet binary stars to better view the origin story of dust.

Live updates: NASA’s James Webb Space Telescope mission

RelatedHow the James Webb Space Telescope works in pictures

Webb will be better positioned than many other observatories in catching sight of this elusive compound. With infrared light, it can peer through clouds of dust, and due to its deep-space orbit, it is far from interfering light sources that can mess up any calculations about dust abundance.

The choice of Webb’s target is also key in moving along the dusty mystery. Wolf-Rayet stars, which are unusually hot and bright, may be huge dust producers after interacting with companion stars in binary systems.

Astronomers usually spot these stellar interactions through pinwheel patterns, generated as the two stars orbit each other and the winds blowing off the surfaces of these stars collide in space. However, because Wolf-Rayet stars are so bright, their luminosity overwhelms the fainter emissions of nearby dust. 

Webb’s specialized optics, however, will provide unprecedented views in infrared. Moreover, Webb has a higher resolution than NASA’s now-retired Spitzer Space Telescope, which also observed from space in infrared.

Long infrared wavelengths of light are not only prized for their ability to peer through dust, but they also can provide the spectrum of elements in dust clouds. Some of these chemicals may be crucial to the building blocks of life, allowing us hints about how dust spread organic molecules through the universe.

“The mid-infrared light that Webb can detect is exactly the wavelength of light we want to look at to study the dust and its chemical composition,” study lead Ryan Lau, a fellow at the Japan Aerospace Exploration Agency (JAXA), said in a 2020 statement (opens in new tab) from the Webb consortium. 

Lau’s team will examine two Wolf-Rayet binary systems using two instruments on Webb: the Mid-Infrared Instrument (MIRI) and Near Infrared Imager and Slitless Spectrograph (NIRISS).

Coming under scrutiny will be WR 140, a well-studied star system that will serve as a baseline to make sure Webb’s observations are working as expected. Also on the list is WR 137, whose two stars will approach each other closely early in Webb’s mission in a potential dust-generating event.

Lau’s investigation will be one of a set of early release science observations performed by Webb, during the telescope’s first five months of normal operations. Beyond serving as an investigation into our dusty origin story, the Wolf-Rayet observations will also help Webb astronomers test out Webb’s dynamic range, or the difference between the brightest and faintest objects it can observe. 

Learning the range “will be useful to the astronomy community in many ways in the future, for example, in studying the dusty disk surrounding the bright center of an active galaxy, or finding a planet orbiting a bright star,” Mansi Kasliwal, an astronomer at the California Institute of Technology on the early release science team, said in the same statement.

Follow Elizabeth Howell on Twitter @howellspace (opens in new tab). Follow us on Twitter @Spacedotcom (opens in new tab) and on Facebook (opens in new tab)

Join our Space Forums to keep talking space on the latest missions, night sky and more! And if you have a news tip, correction or comment, let us know at: community@space.com.

Elizabeth Howell

Elizabeth Howell, Ph.D., is a contributing writer for Space.com (opens in new tab) since 2012. As a proud Trekkie and Canadian, she tackles topics like spaceflight, diversity, science fiction, astronomy and gaming to help others explore the universe. Elizabeth’s on-site reporting includes two human spaceflight launches from Kazakhstan, and embedded reporting from a simulated Mars mission in Utah. She holds a Ph.D. and M.Sc (opens in new tab). in Space Studies from the University of North Dakota, and a Bachelor of Journalism from Canada’s Carleton University. Her latest book, NASA Leadership Moments, is co-written with astronaut Dave Williams. Elizabeth first got interested in space after watching the movie Apollo 13 in 1996, and still wants to be an astronaut someday.

Read More

Latest news

Why Steve Martin Might Retire After Only Murders in the Building

Only Murders in the Building Stars Talk Show's Growing SuccessSteve Martin is ready to sit back and kick up...

Taylor Swift Says She Had Never Heard of 3LW Before “Shake It Off” Lawsuit

Amid a copyright lawsuit from two songwriters accusing Taylor Swift of stealing lyrics from 3LW's "Playas Gon' Play," the...

Inside Kylie Jenner’s Intimate Birthday Trip With Kim Kardashian and Kendall Jenner

Kylie Jenner Shares Glimpse Into 25th Birthday BrunchKylie Jenner had her girls by her side as she rang in...

Jon Hamm Joins The Morning Show Cast For Season 3

In season three of The Morning Show, Jon Hamm joins Reese Witherspoon, Jennifer Aniston and Billy Crudup on the...
- Advertisement -spot_imgspot_imgspot_imgspot_img

New Bachelor in Paradise Key Art Teases a NSFW Season 8

The eighth season of Bachelor in Paradise is changing the way we think about pool floats forever. Check out...

Millie Bobby Brown Details “Unhealthy” Romance With Hunter Ecimovic

Millie Bobby Brown Wants Fans to Know She's Growing UpMillie Bobby Brown is looking back on the past after...

Must read

DAILY DRIVE PODCAST: August 10, 2022

Breadcrumb Home Weekend Drive Podcast CHIPS Act becomes law, eye-popping EV registration...

Canada’s Unifor union elects Lana Payne president

Lana Payne has been elected as the new national...

Maserati to offer 10-year sports car powertrain warranties

Maserati will sell warranty coverage as long as 10...

Solera Auto Finance breaks 2,000-dealer mark

Solera Auto Finance focuses on near-prime and subprime used-vehicle...
- Advertisement -spot_imgspot_imgspot_img

You might also likeRELATED
Recommended to you