Ever wondered what a Herbig-Haro object is? Find out in our latest edition of Who’s who in the Zoo with Dr. Travis Rector!

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Who: Dr. Travis Rector, Professor

Location: University of Alaska Anchorage

Zooniverse project: Baby Star Search

What is your research about?

We are looking for Herbig-Haro (HH) objects, which are jets of gas produced by newly-forming protostars. They are important because they can show us where stars are forming right now. HH objects are quite beautiful and rare – only about a thousand of them are known to exist!

How do Zooniverse volunteers contribute to your research?

We are searching for HH objects in giant clouds of gas inside our galaxy using the Dark Energy Camera (DECam) on the Blanco 4-meter telescope at the Cerro Tololo Interamerican Observatory in Chile. The images produced by this camera are huge – 570 megapixels each – and are too big for a single person to look at. That’s where Zooniverse came in. We divided each image into smaller, 512×512, “cutouts” for people to search. We’ve completed the analysis and Zooniverse volunteers found 169 new HH objects! Considering only about 1200 were known to exist before this is a big increase.

What’s a surprising or fun fact about your research field?

Jets of gas occur in our universe on a wide range of scales. All of them are produced when gas is swirling around a central object. In the case of Herbig-Haro objects the jets are produced by gas moving around a protostar. These jets can extend over several light years. Jets are also produced by gas swirling around black holes. In quasars, these jets are powered by “supermassive” black holes and the jets produced can extend for several hundred thousand light years. What’s amazing is how similar all these jets are to each other despite the tremendous differences in size.

What first got you interested in research?

I first started doing research on quasar jets with Dr. David Hough when I was an undergraduate student at Trinity University.

What’s something people might not expect about your job or daily routine?

People often imagine that astronomers sit inside a dome every night looking through a telescope. In reality the telescopes we use have digital cameras and instruments that collect the data. Nowadays we can operate most telescopes remotely. So most of my research right now is done with telescopes in Chile that I can operate with my laptop computer from the comfort of my kitchen!

Outside of work, what do you enjoy doing?

One of my hobbies is turning the data we get from our telescopes into color images. They’re a great way to share the beauty of the universe, and share the research that we do. I’ve been doing this for over 25 years now, and most of these images are available in the NOIRLab image gallery. Living in Alaska I love to do a wide range of outdoor activities, but my passion is for snow. In particular I love to cross-country ski.

What are you favourite citizen science projects?

For years I’ve had my students to the Planet Hunters TESS project.

What guidance would you give to other researchers considering creating a citizen research project?

It was a lot easier than I had imagined it would be to set up. Zooniverse is great about helping out, and beta testers also had a lot of important feedback. Once your project is up and running be prepared for a tsunami of enthusiastic volunteers who will have a lot of questions. We also had several volunteers to translate our project into other languages, which was great for increasing participation.

And finally…

Here’s one of our color images of one of the regions we studied looking for Herbig Haro objects (you can read more about this here).