David J. Schlegel

David James Schlegel[1] is a Senior Scientist at the Lawrence Berkeley National Laboratory.[2] He earned his Ph.D. in 1995 from the University of California, Berkeley. His earliest research was with Prof. Marc Davis and Douglas Finkbeiner working on dust maps of the universe.[3] This research resulted in one of the most highly cited articles in astronomy. These maps proved to be essential for removing foregrounds in subsequent imaging or cosmic microwave background surveys.

David J. Schlegel
Born05/02/1967
EducationPh. D., 1995, Astronomy, University of California, Berkeley
Known forgalaxy surveys, interstellar dust, DESI
AwardsLawrence Award
Scientific career
Fieldscosmology, astronomy
InstitutionsLawrence Berkeley National Laboratory, Berkeley
Doctoral advisorMarc Davis

From 2008 to 2014 he was the principal investigator (PI) for the Baryon Oscillation Spectroscopic Survey (BOSS) project[4] on the Sloan Telescope, at Apache Point, NM.[5] This project was part of the Sloan Digital Sky Survey and created a three-dimensional map of 1.5 million galaxies. These galaxy maps are used to study the expansion of the Universe and the effects of dark matter and dark energy. The BOSS project measured the size scale of the Universe to 1% precision.[6] Currently, Dr. Schlegel is the co-PI of the DECam Legacy Survey (DECals) (with Dr. Arjun Dey) sky survey.[7] This 3-band sky survey, now completed, covers approximately 5,000 square degrees of the night sky, when combined with two other companion surveys the Legacy Survey expands to 16,000 square degrees containing 1.6 billion objects including galaxies and quasars out to 11 billion years ago.[8][9] Most recently, Dr. Schlegel is project scientist for the Dark Energy Spectroscopic Instrument (DESI). DESI will construct a three-dimensional map of tens of millions of galaxies spanning the local universe to 11 billion light years.

In 2010, Secretary of Energy Ernest Moniz awarded Dr. Schlegel the Lawrence Award, for excellence in scientific, technical, or engineering achievements related to the mission of the U.S. Department of Energy.[10]

References
  1. "David Schlegel". Berkeley Institute for Data Science. Retrieved 2020-04-14.
  2. "Schlegel, David J – Cosmology". Retrieved 2020-04-14.
  3. Schlegel, David J.; Finkbeiner, Douglas P.; Davis, Marc (1998). "Maps of Dust Infrared Emission for Use in Estimation of Reddening and Cosmic Microwave Background Radiation Foregrounds". The Astrophysical Journal. 500 (2): 525–553. arXiv:astro-ph/9710327. Bibcode:1998ApJ...500..525S. doi:10.1086/305772.
  4. Biello, David. "Largest Map of Universe Yet Bolsters Theories about Dark Energy". Scientific American. Retrieved 2020-04-14.
  5. "APO Home Page". www.apo.nmsu.edu. Retrieved 2020-04-14.
  6. "The Baryon Oscillation Spectroscopic Survey (BOSS)". Archived from the original on 2014-08-28.
  7. Survey, Legacy (2019-07-05). "The Dark Energy Camera Legacy Survey (DECaLS)". Legacy Survey. Retrieved 2020-04-14.
  8. "Dark Energy Spectroscopic Instrument", Wikipedia, 2020-04-10, retrieved 2020-04-14
  9. Dey, Arjun; Schlegel, David J.; Lang, Dustin; Blum, Robert; Burleigh, Kaylan; Fan, Xiaohui; Findlay, Joseph R.; Finkbeiner, Doug; Herrera, David; Juneau, Stéphanie; Landriau, Martin; Levi, Michael; McGreer, Ian; Meisner, Aaron; Myers, Adam D.; Moustakas, John; Nugent, Peter; Patej, Anna; Schlafly, Edward F.; Walker, Alistair R.; Valdes, Francisco; Weaver, Benjamin A.; Yèche, Christophe; Zou, Hu; Zhou, Xu; Abareshi, Behzad; Abbott, T. M. C.; Abolfathi, Bela; Aguilera, C.; et al. (2019). "Overview of the DESI Legacy Imaging Surveys". The Astronomical Journal. 157 (5): 168. arXiv:1804.08657. Bibcode:2019AJ....157..168D. doi:10.3847/1538-3881/ab089d. S2CID 56335994.
  10. "LAWRENCE David J. Schlegel, 2014 | U.S. DOE Office of Science (SC)". science.osti.gov. 2010-12-28. Retrieved 2020-04-14.


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