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Up On Top of the Volcano, Down in the Submillimeter Valley

Where engineers build their telescopes, astronomers will inevitably come. One of the great perks of having a career path associated with the night sky is the opportunity to visit places where the stars I study shine the brightest. Thanks to Wesleyan University’s newest Assistant Professor of Astronomy, Meredith Hughes, I (Eric Edelman ’13) was able to assist as a student observer at the Submillimeter Array (SMA) on the big island of Hawaii for spring break. Mahalo, Meredith!

The SMA is a telescope array composed of eight individual antennas that specializes in submillimeter, or radio, wavelengths. It is situated near 13,000 feet above sea level, close to the summit of Mauna Kea, one of Hawaii’s inactive volcanoes. This daunting altitude helps the SMA to avoid many atmospheric issues that particularly stymie ground based submillimeter observations. Fortunately, the observing station has an oxygenated control room, so I was able to remain coherent enough during my stay to absorb and document my nights as half guest observer and half gawking, consistently over-impressed tourist.

My five days on the summit gave me a quick glimpse into the many and varied challenges face by ground-based observers. In particular, the weather during my trip was extremely changeable. On my first night at that dark, isolated summit, the starry night sky was clear and vivid enough to drown in. That night, the SMA engineers worked on installing new hardware and the observers set the antennas’ sights on an AGN (active galactic nucleus), which is an extremely luminous galactic nucleus, thought to be caused by large-scale, energetic accretion of matter into the galaxy’s supremely supermassive black hole. However, by my fifth and last observing night, wind and icy snow buffeted the summit, shaded by thick, unmoving clouds, and observing or testing anything was as far from possible as it ever could be. A big portion of an observer’s job is to keep one’s eyes trained on those weather sites in order to adapt accordingly to whatever challenges the fickle weather patterns end up throwing his or her way.

While the sudden snow storm was certainly exciting, I could not enjoy those nights quite as much as I could the clear ones, when actual observing occurred. On those nights, when everything was in working order, every so often I could not help but lean back in my chair in that chilly control room and try and digest the magnitude of this whole operation. Right in front of me, only about ten yards away, was an array of telescopes pointed at and collecting information on an object most likely millions of parsecs away from us. The scale and finesse of observational astronomy has never ceased to impress me, and seeing the SMA in action was a treat to be remembered.

For any readers local to the Wesleyan campus, keep in mind that public observing is held at the campus observatory on clear Wednesday nights from 8:00-9:00pm. We cannot promise you AGNs, but I would still highly recommend a trip to Van Vleck to see the stars if you can make it!

Black Holes aplenty

When galaxies collide, they produce some impressive displays. They also can produce quite a few new black holes. A recent press release from the Chandra X-ray Observatory provides a beautiful example of this phenomenon. NGC 922 is a nearby galaxy undergoing some extreme star formation due to a recent interaction. The above image is a … Read more

Solar Eclipse of Nov. 13, 2012

Amy Steele, a first year MA student viewed the solar eclipse of Nov. 13, 2012, from northern Australia and sent along the attached photo. She was part of a team hoping to make measurements during totality but it looks like clouds got in the way. Nonetheless, they were able to see parts of the eclipse and she got a very nice image of a partial phase viewed through the clouds.

Taken by MA student Amy Steele in northern Australia

Astronomy Talk: The Beauty of the Universe as Revealed by Hubble, October 25th at 8pm

The Astronomy Department and the Center for the Arts are pleased to sponsor a special talk by Lisa Frattare (G ’96) of the Space Telescope Science Institute in Baltimore, MD. Her talk is entitled “The Beauty of the Universe as Revealed by Hubble”. Lisa Frattare has been a member of the Hubble Heritage Project since … Read more

Wesleyan Students Speak at Undergraduate Research Symposium

Seven students represented Wesleyan at the Fall 2012 Undergraduate Research Symposium of the Keck Northeast Astronomy Consortium (KNAC) held at Middlebury College on Sept. 21. All of them presented talks on their summer research projects to an audience of about 80 students and faculty from the KNAC schools. The presenting students were:
Kerry Klemmer, a senior astronomy major
Lily Zucker, a junior astronomy major
Miche Aaron, a junion E&ES major
Ben Tweed, a senior astronomy major
Eric Edelman, a senior astronomy major
Mark Popinchalk, a senior astronomy major
James Dottin, a senior E&ES major
Congratulations to all of them for their fine contributions to this exciting conference! Also among the pictures find Wesleyan Professor Ed Moran speaking with Prof. Kim McLeod of Wellesley College during one of the coffee breaks.

 

Neptoon!

Without math, astronomers would be pretty lost in space! This Neptoon is a tribute to the man whose work with trigonometry made parallax (and a lot of other astronomy) possible: Pythagoras!

Solar Observing Today, 3/27, until 4pm

Come see the Sun today, March 27, in front of Usdan!

Then join us at 8pm in the Daniel Family Common (3rd floor of Usdan) for the Sturm Lecture by Dr. Alan Title, Director and Senior Fellow of Advanced Technology Center, Lockheed Martin, and Professor of Physics, Stanford University.  His talk is entitled “Making the Invisible Sun Visible”.  Following his talk, we will observe other celestial objects through the 16″ and 20″ telescopes at Van Vleck Observatory.  As with all events hosted by the Astronomy Department, this event is free of charge and open to the public.

Solar Viewing for the Sturm Lecture

In honor of this year’s Sturm Lecture, we will be observing the Sun all day on the lawn outside Usdan center on 3/27 (or 3/26 if the weather doesn’t look great for 3/27).  We will observe at visible wavelengths with our 10″ telescope and with our new Coronado H-alpha telescope, as well as our solar spectrograph.  Students and faculty from the Astronomy Department will be on hand to answer your questions about the Sun.

Then join us at 8pm on 3/27 in the Daniel Family Common (3rd floor of Usdan) for the Sturm Lecture by Dr. Alan Title, Director and Senior Fellow of Advanced Technology Center, Lockheed Martin, and Professor of Physics, Stanford University.  His talk is entitled “Making the Invisible Sun Visible”.  Following his talk, we will observe other celestial objects through the 16″ and 20″ telescopes at Van Vleck Observatory.  As with all events hosted by the Astronomy Department, this event is free of charge and open to the public.