Sarah Ballard
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Sarah Ballard (born 1984, NYU Special ublicColloqium, 2013 October 11.) is an American
Professor Professor (commonly abbreviated as Prof.) is an academic rank at universities and other post-secondary education and research institutions in most countries. Literally, ''professor'' derives from Latin as a "person who professes". Professors ...
of
Astronomy Astronomy () is a natural science that studies celestial objects and phenomena. It uses mathematics, physics, and chemistry in order to explain their origin and evolution. Objects of interest include planets, moons, stars, nebulae, g ...
currently at the
University of Florida The University of Florida (Florida or UF) is a public land-grant research university in Gainesville, Florida. It is a senior member of the State University System of Florida, traces its origins to 1853, and has operated continuously on its ...
. She has been a Torres Fellow at the
Massachusetts Institute of Technology The Massachusetts Institute of Technology (MIT) is a private land-grant research university in Cambridge, Massachusetts. Established in 1861, MIT has played a key role in the development of modern technology and science, and is one of the ...
, a L'Oreal Fellow, and a NASA Carl Sagan Fellow. Ballard was part of a collaborative team that was the first to successfully use the
transit-timing variation Transit-timing variation is a method for detecting exoplanets by observing variations in the timing of a transit. This provides an extremely sensitive method capable of detecting additional planets in the system with masses potentially as small a ...
method. This resulted in her team's confirmation of this theoretical search procedure and the discovery of the Kepler-19 planetary system with that technique. Ballard took part in the discovery of four exoplanets (early numbered) in the Kepler spacecraft mission prior to its finding of significant quantities of planets around other stars. Ballard has spoken about her experience as a victim of sexual harassment, about
imposter syndrome Impostor syndrome, also known as impostor phenomenon or impostorism, is a psychological occurrence in which an individual doubts their skills, talents, or accomplishments and has a persistent internalized fear of being exposed as a fraud. Despi ...
, and about the controversy over the proposed
Thirty Meter Telescope The Thirty Meter Telescope (TMT) is a planned extremely large telescope (ELT) that has become controversial due to its location on Mauna Kea, on the island of Hawaiʻi. The TMT would become the largest visible-light telescope on Mauna Kea. S ...
at the
Mauna Kea Observatories The Mauna Kea Observatories (MKO) are a group of independent astronomical research facilities and large telescope observatories that are located at the summit of Mauna Kea on the Big Island of Hawaiʻi, United States. The facilities are located ...
.


Education

As an undergraduate, Ballard started out as a
gender studies Gender studies is an interdisciplinary academic field devoted to analysing gender identity and gendered representation. Gender studies originated in the field of women's studies, concerning women, feminism, gender, and politics. The field ...
major at the
University of California, Berkeley The University of California, Berkeley (UC Berkeley, Berkeley, Cal, or California) is a public land-grant research university in Berkeley, California. Established in 1868 as the University of California, it is the state's first land-grant u ...
. She completed a bachelor's degree from Berkeley in astrophysics in 2007, with a minor in physics. She did her graduate studies at
Harvard University Harvard University is a private Ivy League research university in Cambridge, Massachusetts. Founded in 1636 as Harvard College and named for its first benefactor, the Puritan clergyman John Harvard, it is the oldest institution of high ...
, completing a doctorate in astronomy and astrophysics in 2012 under the supervision of
David Charbonneau David Brian Charbonneau is a professor of Astronomy at Harvard University. His research focuses on the development of novel techniques for the detection and characterization of exoplanets orbiting nearby, Sun-like stars. Early life and educat ...
.


Fellowships

Ballard was a NASA Carl Sagan Fellow at the University of Washington where she did postdoctoral work; and in 2015 was awarded a Women in Science Fellows postdoctoral fellowship by L'Oréal USA to continue her research at MIT.


Exoplanet discoveries

Ballard took part in the discovery of four exoplanets before she turned 30 years old, including
Kepler-19c Kepler-19c is an extra-solar planet orbiting the star Kepler-19 approximately 717 light years from Earth. Discovery The planet was discovered as a result of examinations of data from the previously discovered exoplanet, Kepler-19b. Timing va ...
, the first exoplanet found using the
transit-timing variation Transit-timing variation is a method for detecting exoplanets by observing variations in the timing of a transit. This provides an extremely sensitive method capable of detecting additional planets in the system with masses potentially as small a ...
method on data from the ''
Kepler Johannes Kepler (; ; 27 December 1571 – 15 November 1630) was a German astronomer, mathematician, astrologer, natural philosopher and writer on music. He is a key figure in the 17th-century Scientific Revolution, best known for his laws o ...
'' mission.


Transit-timing variation

The
transit-timing variation Transit-timing variation is a method for detecting exoplanets by observing variations in the timing of a transit. This provides an extremely sensitive method capable of detecting additional planets in the system with masses potentially as small a ...
method (TTV) is one of two techniques, along with the transit-duration variation method, proposed in 2001 by astronomer Jordi Miralda-Escudé. TTV was amplified upon in 2004 by astronomers Matthew J. Holman and Norman W. Murray; and by Eric Agol, Jason Steffen, Re’em Sari, and Will Clarkson. Ballard was the principal investigator in the 2009 application to use the Spitzer Space Telescope to examine "The First Exoplanet Smaller than the Earth". Ballard led the team which precisely estimated the diameter of Kepler-93b to within 1 percent, using TTV.


Activism

When exoplanetologist
Geoffrey Marcy Geoffrey William Marcy (born September 29, 1954) is an American astronomer. He was an early influence in the field of exoplanet detection, discovery, and characterization. Marcy was a professor of astronomy at the University of California, Berke ...
resigned from the
UC Berkeley The University of California, Berkeley (UC Berkeley, Berkeley, Cal, or California) is a public land-grant research university in Berkeley, California. Established in 1868 as the University of California, it is the state's first land-grant uni ...
faculty over charges that he had sexually harassed female undergraduate students, Ballard came out publicly as one of his victims in order to help bring attention to sexual harassment in academia. In an interview published by ''Wired'', she said that "In the parking lot outside her apartment ..he gave her advice about her current relationship. She opened the door and stuck her legs out, eager to leave. ..He put his hand on the back of her neck and told her to relax, that everything would work out with that boy". Ballard has written and conducted workshops on
impostor syndrome Impostor syndrome, also known as impostor phenomenon or impostorism, is a psychological occurrence in which an individual doubts their skills, talents, or accomplishments and has a persistent internalized fear of being exposed as a fraud. Desp ...
. She was involved in a controversy about the proposed
Thirty Meter Telescope The Thirty Meter Telescope (TMT) is a planned extremely large telescope (ELT) that has become controversial due to its location on Mauna Kea, on the island of Hawaiʻi. The TMT would become the largest visible-light telescope on Mauna Kea. S ...
at
Mauna Kea Observatory The Mauna Kea Observatories (MKO) are a group of independent astronomical research facilities and large telescope observatories that are located at the summit of Mauna Kea on the Big Island of Hawaiʻi, United States. The facilities are locate ...
. Her friend, Keolu Fox, a native
Hawaii Hawaii ( ; haw, Hawaii or ) is a state in the Western United States, located in the Pacific Ocean about from the U.S. mainland. It is the only U.S. state outside North America, the only state that is an archipelago, and the only state ...
an, helped her see the issue from an
indigenous Indigenous may refer to: *Indigenous peoples *Indigenous (ecology), presence in a region as the result of only natural processes, with no human intervention *Indigenous (band), an American blues-rock band *Indigenous (horse), a Hong Kong racehorse ...
perspective. Ballard spoke about the issue despite fears about the effects it may have on her career. Ballard was one of a number of scientists who expressed concern in "An open letter to
SCOTUS The Supreme Court of the United States (SCOTUS) is the highest court in the federal judiciary of the United States. It has ultimate appellate jurisdiction over all U.S. federal court cases, and over state court cases that involve a point of ...
from professional physicists drafted by the Equity & Inclusion in Physics & Astronomy group"https://eblur.github.io/scotus/ , entry 901. following oral arguments in the U.S. Supreme Court case commonly known as '' Fisher II'' involving inclusiveness in admissions policies at the University of Texas.


See also

*
Methods of detecting exoplanets Any planet is an extremely faint light source compared to its parent star. For example, a star like the Sun is about a billion times as bright as the reflected light from any of the planets orbiting it. In addition to the intrinsic difficulty o ...


References


External links

*
I Parasailed Planet KOI 314.02 And All I Got Was This Lousy T-Shirt
''
The Takeaway ''The Takeaway'' is a morning radio news program co-created and co-produced by Public Radio International and WNYC. Its editorial partner is WGBH-FM; at launch the BBC World Service and ''The New York Times'' were also editorial partners. In ...
'' (radio show), March 3, 2015, guest Sarah Ballard * {{DEFAULTSORT:Ballard, Sarah University of Washington people American women astronomers UC Berkeley College of Letters and Science alumni Harvard Graduate School of Arts and Sciences alumni Living people 1984 births 21st-century American astronomers Planetary scientists Women planetary scientists