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2016-04-23T00:00:00.000Z

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Wrong Adam Bolton?

Dr. Adam S. Bolton

Assistant Professor of Physics and Astronomy

University of Utah

HQ Phone: (801) 581-7200

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University of Utah

201 Presidents Circle Room 201

Salt Lake City, Utah 84112

United States

Company Description

About the University of Utah: The University of Utah, located in Salt Lake City in the foothills of the Wasatch Mountains, is the flagship institution of higher learning in Utah. Founded in 1850, the university serves about 31,000 students from across the ... more

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Background Information

Employment History

CfA

Affiliations

CfA Postdoctoral Fellow
Harvard University

B. W. Parrent Postdoctoral Fellow
Institute for Astronomy, University of Hawaii

Principal Data Scientist
Sloan Digital Sky Survey

Education

PhD

Physics

MIT

Web References (68 Total References)


Sloan Digital Sky Survey IV - SDSS-III

www.sdss3.org [cached]

Principal Data Scientist: Adam Bolton (University of Utah)


Welcome (Adam Bolton Joins NOAO) ...

www.lsstmail.org [cached]

Welcome (Adam Bolton Joins NOAO) NOAO welcomes Adam Bolton as the new Associate Director of the NOAO System Science and Data Center. He brings to NOAO technical expertise in imaging and spectroscopic surveys that is motivated by his research interest in galaxies, dark matter, and dark energy.

...
Adam Bolton Joins NOAO as Associate Director for the NOAO System Science and Data Center Adam Bolton
...
Adam Bolton, Associate Director, NOAO System Science and Data Center
NOAO welcomes Adam Bolton as the new Associate Director (AD) of the NOAO System Science and Data Center (NSSDC). Bolton brings to NOAO broad and deep technical expertise in imaging and spectroscopic surveys that is motivated by his research interest in galaxies, dark matter, and dark energy. He takes over from the outgoing NSSDC AD, Verne Smith.
Bolton comes to NOAO from a position as Associate Professor in the Department of Physics and Astronomy at the University of Utah, where he has been on the faculty since 2009. He previously held the Beatrice Watson Parrent postdoctoral fellowship at the University of Hawaii (2007-2009) and a CfA Postdoctoral Fellowship at the Harvard-Smithsonian Center for Astrophysics (2005-2007). He received his PhD in Physics from MIT in 2005.
Bolton has extensive research experience in the analysis of astronomical imaging and spectroscopy, and in the application of new statistical methods to large surveys. His research interests include the use of strong gravitational lensing to measure the mass structure of galaxies, and the development of advanced spectroscopic analysis methods to enable and exploit new surveys of the universe beyond our own galaxy.
The Principal Data Scientist for the Sloan Digital Sky Survey (SDSS) since 2012, Bolton has also been a leader in proposing and designing the Dark Energy Spectroscopic Instrument (DESI), which is destined for the Mayall telescope on Kitt Peak, and its associated data management and analysis systems. His interest in and experience with large data sets will be an asset to NOAO as it evolves to meet the changing needs of the astronomical community.
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Adam is the right leader at the right time to help NOAO develop and deploy new services that the community can use to access and analyze large, rich catalogs of millions of objects across the entire celestial sphere."


Co-investigators on the grant are UM ...

www.spacedaily.com [cached]

Co-investigators on the grant are UM Associate Professor Dan Reisenfeld, also from the Department of Physics and Astronomy, and Adam Bolton, assistant professor of astrophysics at the University of Utah.


Co-investigators on the grant are UM ...

spaceref.com [cached]

Co-investigators on the grant are UM Associate Professor Dan Reisenfeld, also from the Department of Physics and Astronomy, and Adam Bolton, assistant professor of astrophysics at the University of Utah.


According to Dr. Adam Bolton, ...

www.ksl.com [cached]

According to Dr. Adam Bolton, lead author on the study, most recent research suggests that huge and old massive elliptical galaxies grow by snacking on many smaller galaxies through absorbing their mass in collisions. But Bolton has a different idea, based on some previous research.

"We're suggesting that major collisions between massive galaxies are just as important as those many small snacks," he said. In other words, eating big meals matters as much as snacking on smaller galaxies.
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"I feel like if we can't explain why these galaxies look the way they do, we don't have any hope with other types of galaxies," Bolton said.
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In order to study that possibility, Bolton made use of data from another project he is working on to map the sky using the Sloan Digital Sky Survey-III. That project is trying to put together a 3D map of the universe, which would be useful for any number of reasons, including getting a better idea of early history close to the Big Bang as well as understanding the properties of dark energy, the mysterious stuff that makes the universe accelerate and makes up roughly 72 percent of the mass in the universe.
But a side benefit of mapping as many galaxies as you can is that it's possible to find galaxies that show gravitational lensing, a phenomenon that is very rare, perhaps showing up in only 1 in 100 galaxies, according to Bolton. It also allows you to measure mass.
Enlarge image This diagram shows briefly the principle behind gravity lensing that allowed scientists to measure the mass and density of elliptical galaxies. Credit: Courtesy of Adam Bolton, University of Utah
When two galaxies are exactly superimposed from the view of Earth, with one much farther away, the gravity of the closer galaxy will bend the light from the distant one, making it look like a ring from our point of view. The more bent the light is, the bigger the ring is and the more massive the closer galaxy is.
Once the team found a galaxy that showed lensing, they could point the Hubble Telescope at the galaxy and take very accurate readings of the mass of the galaxy and approximate where the mass is concentrated, accurate to about 2 percent, according to Bolton.
"There's really no other way other than gravitational lensing to make precise measurement of galaxies this far away," he said.

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