Tag Archive for Astronomy Department

Redfield Speaks at California Academy of Sciences

Seth Redfield

Seth Redfield

On Oct. 15, Seth Redfield, associate professor and chair of astronomy, gave a lecture at the Morrison Planetarium at the California Academy of Sciences. He was invited to speak as part of the Benjamin Dean Astronomy Lecture series. The title of his talk was, “Exploring Our Galactic Neighborhood.” The talk will be posted to the Academy’s iTunes University site.

Redfield is also associate professor, integrative sciences, and co-coordinator, planetary science.

 

Sundial Sculpture Installed on Van Vleck Observatory

Seth Redfield, chair and associate professor of astronomy, associate professor of integrative sciences, and artist Robert Adzema observe a sundial's installation July 16 at the Van Vleck Observatory. Adzema, a maker of site-specific sundials, designed the sculpture to be placed at its exact location on the telescope's wall.

Seth Redfield, chair and associate professor of astronomy, associate professor of integrative sciences, along with artist Robert Adzema observed the sundial’s installation July 16 at the Van Vleck Observatory. Adzema, a maker of site-specific sundials, designed the sculpture for this exact location below the telescope’s dome.

The campus community now has the ability to tell time the way Egyptians did more than 3.500 years ago—by using light and shadows.

A modern-day sundial, which mimics those used throughout history, now hangs on the south side of the Van Vleck Observatory’s 24-inch Perkin telescope. The six-foot-square structure is fabricated from 3/16-inch thick Muntz metal bronze with stainless steel reinforcing.

“Campus doesn’t have enough outside art,” said Joyce Jacobsen, provost and senior vice president for academic affairs. “A sundial is a perfect piece because it’s not only aesthetically pleasing but it’s functional too.”

Bill Herbst, John Monroe Van Vleck Professor of Astronomy, along with Jacobsen, had been pitching the idea of a sundial to the Wesleyan administration for many years. In 2016, the plan was approved by all involved parties, including the President’s Office and Physical Plant-Facilities. Jacobsen and Herbst commissioned sundial creator and artist Robert Adzema of New York to design and build a sundial for Wesleyan’s campus. After visiting campus six times and crafting multiple paper and wooden models, Adzema completed the time-telling sculpture in 18 months.

“Sundials can be designed for almost any fixed surface that receives sunlight,” Adzema said. “The most precise dials, as is this dial, here at Wesleyan, are made to the exact longitude and latitude of the site.”

On July 16, crews from New Jersey traveled to campus and began installing the 650-pound sundial. Adzema also attended to offer guidance and direction.

“It’s a great location in terms of being visible without being intrusive,” Jacobsen said. “We will also have an entry now in the online listing for sundials around the world, so now maybe we will have yet more people visit campus, drawn here by the sundial!”

Photos of the sundial’s installation are below: (Photos by Olivia Drake)

Crews used a scissor lift to lift and install the 650-pound sundial.

Duvvuri ’17 Awarded Chambliss Award for Astronomy Research

Girish Duvvuri ’17 presented his research titled “Necroplanetology: Disrupted Planetary Material Transiting WDII45+017.” His advisor is Seth Redfield, associate professor of astronomy.

Girish Duvvuri ’17 presented his research titled “Necroplanetology: Disrupted Planetary Material Transiting WDII45+017″ at a poster session in 2017.

In recognition of his exemplary research at Wesleyan, astronomy major Girish Duvvuri ’17 has been awarded a Chambliss medal from the American Astronomical Society (AAS).

Duvvuri, who majored in astronomy, physics, and English, received the award during the 232nd AAS Meeting June 3–7 in Denver, Colo.

There, he presented a study that formed much of his senior thesis at Wesleyan. Seth Redfield, associate professor and chair of astronomy, associate professor of integrative sciences, and co-coordinator of planetary science, served as Duvvuri’s advisor.

To be eligible for an award, work featured on a poster must have been done within the past year and while the presenter was an undergraduate or graduate student.

Duvvuri is currently a PhD student in astronomy at the University of Colorado in Boulder.

Students Receive Research Awards from NASA

Three undergraduates and one graduate student received NASA Connecticut Space Grant Awards from the NASA Connecticut Space Grant Consortium (CTSGC). The CTSGC is a federally mandated grant, internship, and scholarship program that aims to inspire the pursuit of careers in science, technology, engineering, and mathematics.

Astronomy and math major Nicole Zalewski ’20 received a $5,000 undergraduate research fellowship to pursue her study on “Measurement of the Radar Properties of the Oldest Rocks on Venus to Constrain Mineralogy.” Her advisor is Martha Gilmore, the George I. Seney Professor of Geology, professor of earth and environmental sciences, co-coordinator of planetary science, and director of graduate studies.

Wesleyan-Led Astronomy Consortium Joins Association of Universities for Research in Astronomy

The Association of Universities for Research in Astronomy (AURA), which operates the Hubble Space Telescope, the James Webb Space Telescope, the U.S. National Optical Astronomy Observatory (NOAO), and other major astronomical research facilities in the United States, has elected the Keck Northeast Astronomy Consortium (KNAC)—led by Wesleyan University—as a new member. This historic development represents the first time that liberal arts institutions have been invited to join the association and serves as an important recognition of the value of such programs, not just to education, but also to frontier research in astronomy.

Seth Redfield, campus director of the NASA CT Space Grant Consortium, reports that several students and faculty have recently been awarded grants for their research in astronomy. Photo c/o Redfield

Seth Redfield

“This is a tremendous recognition of the important impact that the Keck Consortium and our individual institutions have on the astronomy research landscape, and it literally gives us a seat at the table in terms of influencing the future of astronomy in the United States,” says Seth Redfield, associate professor and chair of astronomy at Wesleyan. “This is a validation of our impact in research and preparing future generations of astronomers (many of whom go on to PhD programs or postdocs or faculty positions at the large research institutions already on the board of AURA),” Redfield adds. “We are thrilled to have a voice from smaller institutions in shaping the future of our field.”

Star, Planet Formation Expert Delivers Sturm Lecture

On March 27, the campus community gathered to hear the 2018 Sturm Memorial Lecture, titled "Building Stars, Planets and the Ingredients for Life in Space."

On March 27, the campus community gathered in the Ring Family Performing Arts Hall to hear the 2018 Sturm Memorial Lecture, titled “Building Stars, Planets and the Ingredients for Life in Space.” This annual event in memory of Wesleyan alumnus Kenneth Sturm ’40 is held in the spring and is open to the public. It features a presentation from an astronomer who is outstanding in their field and able to communicate the excitement of science to a lay audience.

Alumni, Faculty, Graduate Students Make Presentations at Planetary Science Conference

Melissa Luna E&ES MA ’18, Jordyn-Marie Dudley E&ES MA ’18, Keenan Golder MA ’16, Reid Perkins E&ES MA ’19, Ben McKeeby MA ’17, Kristen Luchsinger MA ‘17

Graduate student Melissa Luna; graduate student Jordyn-Marie Dudley; Keenan Golder MA ’13; graduate student Reid Perkins; Ben McKeeby MA ’17; and Kristen Luchsinger MA ’17 recently attended the Lunar and Planetary Science Conference in Texas.

Faculty, graduate students, and alumni attended the 49th Lunar and Planetary Science Conference March 19–23 in The Woodlands, Texas.

Graduate student Reid Perkins

Three graduate students were awarded funds from the NASA Connecticut Space Grant that allowed them to travel to this meeting.

Earth and environmental sciences graduate student Reid Perkins presented a research poster titled “Where Are the Missing Tessera Craters on Venus?” Perkins’s advisor is Martha Gilmore, the George I. Seney Professor of Geology, professor of earth and environmental sciences.

Earth and environmental sciences graduate student Melissa Luna presented a poster titled “Multivariate Spectral Analysis of CRISM Data to Characterize the Composition of Mawrth Vallis.” Her advisors are Gilmore and Suzanne O’Connell, professor of earth and environmental sciences.

Earth and environmental sciences graduate student Jordyn-Marie Dudley presented a poster titled “Water Contents of Angrites, Eucrites, and Ureilites and New Methods for Measuring Hydrogen in Pyroxene Using SIMS.” Dudley’s advisor is Jim Greenwood, assistant professor of earth and environmental sciences.

“At their poster presentations, our graduate students were engaging with the top scientists in our field, who were very interested in their work,” Gilmore said. “I was very proud to see them attending talks across a range of disciplines, asking questions of speakers and making such solid scientific contributions.”

Gilmore also presented a study at the conference titled “Formation Rates and Mechanisms for Low-Emissivity Materials on Venus Mountaintops and Constraint on Tessera Composition.” In addition, she worked with NASA scientists on issues related to Venus exploration.

The following alumni authored abstracts presented at the conference: Avram Stein ’17; Jesse Tarnas ’16; Peter Martin ’14Nina Lanza MA ’06; Ian Garrick-Bethell ’02Robert Nelson MA ’69; and William Boynton ’66. Keenan Golder MA ’13; Ben McKeeby MA ’17; and Kristen Luchsinger MA ’17 also attended.

Hughes Named 2018 Cottrell Scholar

Meredith Hughes

Meredith Hughes

Meredith Hughes, assistant professor of astronomy, assistant professor of integrative sciences, has been named a Cottrell Scholar for 2018 by the Research Corporation for Science Advancement (RCSA).

Hughes is one of two dozen early career academic scientists to receive this honor, which comes with a $100,000 award for research and teaching.

“The Cottrell Scholar (CS) program champions the very best early career teacher-scholars in chemistry, physics and astronomy by providing these significant discretionary awards,” said RCSA President and CEO Daniel Linzer.

Kilgard Explains Why Scientists Are So Excited About Observing Merging Neutron Stars

The Van Vleck Observatory on Foss Hill.

Writing in The Conversation, Roy Kilgard, research associate professor of astronomy, explains the significance of an exciting new discovery in astronomy. For the first time, astrophysicists have observed merging neutron stars using LIGO (the Laser Interferometer Gravitational-Wave Observatory) and the Virgo interferometer.

Kilgard writes:

This news may confirm a longstanding theory: that some gamma-ray bursts (GRBs for short), which are among the most energetic, luminous events in the universe, are the result of merging neutron stars. And it is in the crucible of these mergers that most heavy elements may be forged. Researchers can’t produce anything like the temperatures or pressures of neutron stars in a laboratory, so observation of these exotic objects provides a way to test what happens to matter at such extremes.

Astronomers are excited because for the first time they have gravitational waves and light signals stemming from the same event. These truly independent measurements are separate avenues that together add to the physical understanding of the neutron star merger.

Niraula MA ’18, Redfield Lead Team in Discovery of 3 Super-Earths

A team of scientists from Wesleyan, led by Associate Professor of Astronomy Seth Redfield and graduate student Prajwal Niraula MA’18, discovered three super-Earths transiting around a nearby star, just 98 light-years from Earth. This NASA-generated image was created to depict 55 Cancri e, a super-Earth 40 light-years away from Earth.

A team of scientists from Wesleyan discovered three super-Earths transiting around a nearby star, 98 light-years away. The NASA-generated image above depicts a different super-Earth: 55 Cancri e, discovered in 2004.

A team of scientists from Wesleyan, led by Associate Professor of Astronomy Seth Redfield and graduate student Prajwal Niraula MA ’18, has co-authored a paper on the discovery of three planets, or super-Earths, transiting around a nearby star, just 98 light-years away.

“Super-Earths are slightly larger than Earth, and the three of them straddle the divide between the rocky planets like Earth and ice giants like Neptune,” explains Redfield.

These planets were found using the Kepler Space Telescope. “Kepler has found thousands of exoplanets these last eight years, but this is the closest planetary system that Kepler has ever found, although closer planetary systems have been found using different telescopes,” says Redfield.

Wesleyan, Local Community Watch Historic Eclipse at Van Vleck Observatory

Vacek Miglus, lab technician for the Physics Department, watches the eclipse with a homemade viewing tool.

Vacek Miglus, lab technician for the Physics Department, watches the eclipse of the sun with a homemade viewing tool.

Wesleyan’s Department of Astronomy hosted a public eclipse viewing on Aug. 21, outside the Van Vleck Observatory. Hundreds of Wesleyan and local community members attended this historic event. Although Middletown wasn’t in the narrow path of totality, viewers still were able to witness about 65 percent of the sun disappear.

In addition to telescopes and eclipse glasses for safely viewing the Sun, participants were encouraged to tour the Department of Astronomy’s historical exhibition and see images from the 1925 solar eclipse that passed directly over Wesleyan. A live streaming feed of the eclipse also was shown in a classroom.

You’re Invited! View the Solar Eclipse at the Van Vleck Observatory, Aug. 21

Watch a partial eclipse of the Sun at Wesleyan’s Van Vleck Observatory on Aug. 21.

The campus and local community is invited to witness the partial eclipse of the Sun at Wesleyan’s Van Vleck Observatory on Aug. 21. While Middletown isn’t in the narrow path of totality, viewers should still be able to see about 65 percent of the Sun disappear. Telescopes for the family-friendly event will be set up at 1 p.m., and the eclipse will begin at approximately 1:20 p.m., with mid-eclipse falling at approximately 2:40 p.m. The event is hosted by Wesleyan’s Astronomy Department and is free of charge.