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A globular cluster is a spheroidal conglomeration of stars. Globular clusters are bound together by gravity, with a higher concentration of stars towards their centers. They can contain anywhere from tens of thousands to many millions of member stars. Their name is derived from Latin globulus. Globular clusters are occasionally known simply as "globulars".
Sandra Moore Faber is an American astrophysicist known for her research on the evolution of galaxies. She is the University Professor of Astronomy and Astrophysics at the University of California, Santa Cruz, and works at the Lick Observatory. She has made discoveries linking the brightness of galaxies to the speed of stars within them and was the co-discoverer of the Faber–Jackson relation. Faber was also instrumental in designing the Keck telescopes in Hawaii.
Messier 87 is a supergiant elliptical galaxy in the constellation Virgo that contains several trillion stars. One of the largest and most massive galaxies in the local universe, it has a large population of globular clusters — about 15,000 compared with the 150–200 orbiting the Milky Way — and a jet of energetic plasma that originates at the core and extends at least 1,500 parsecs, traveling at a relativistic speed. It is one of the brightest radio sources in the sky and a popular target for both amateur and professional astronomers.
The Sombrero Galaxy is a peculiar galaxy of unclear classification in the constellation borders of Virgo and Corvus, being about 9.55 megaparsecs from the Milky Way galaxy. It is a member of the Virgo II Groups, a series of galaxies and galaxy clusters strung out from the southern edge of the Virgo Supercluster. It has a diameter of approximately 15 kiloparsecs, three-tenths the size of the Milky Way.
Donald Edward Osterbrock was an American astronomer, best known for his work on star formation and on the history of astronomy.
NGC 5866 is a relatively bright lenticular galaxy in the constellation Draco. NGC 5866 was most likely discovered by Pierre Méchain or Charles Messier in 1781, and independently found by William Herschel in 1788. Measured orbital velocities of its globular cluster system imply that dark matter makes up only 34±45% of the mass within 5 effective radii, a notable paucity.
Kenneth Charles Freeman is an Australian astronomer and astrophysicist who is currently Duffield Professor of Astronomy in the Research School of Astronomy and Astrophysics at the Mount Stromlo Observatory of the Australian National University in Canberra. He was born in Perth, Western Australia in 1940, studied mathematics and physics at the University of Western Australia, and graduated with first class honours in applied mathematics in 1962. He then went to Cambridge University for postgraduate work in theoretical astrophysics with Leon Mestel and Donald Lynden-Bell, and completed his doctorate in 1965. Following a postdoctoral appointment at the University of Texas with Gérard de Vaucouleurs, and a research fellowship at Trinity College, Cambridge, he returned to Australia in 1967 as a Queen Elizabeth Fellow at Mount Stromlo. Apart from a year in the Kapteyn Institute in Groningen in 1976 and some occasional absences overseas, he has been at Mount Stromlo ever since.
Nicholas B. Suntzeff is an American University Distinguished Professor and holds the Mitchell/Heep/Munnerlyn Chair of Observational Astronomy in the Department of Physics & Astronomy at Texas A&M University where he is Director of the Astronomy Program. He is an observational astronomer specializing in cosmology, supernovae, stellar populations, and astronomical instrumentation. With Brian Schmidt he founded the High-z Supernova Search Team, which was honored with the Nobel Prize in Physics in 2011 to Schmidt and Adam Riess.
Mark M. Phillips (born March 31, 1951) is an American astronomer who works on the observational studies of all classes of supernovae. He has worked on SN 1986G, SN 1987A, the Calán/Tololo Supernova Survey, the High-Z Supernova Search Team, and the Phillips relationship. This relationship has allowed the use of Type Ia supernovae as standard candles, leading to the precise measurements of the Hubble constant H0 and the deceleration parameter q0, the latter implying the existence of dark energy or a cosmological constant in the Universe.
Martha Patricia Haynes is an American astronomer who specializes in radio astronomy and extragalactic astronomy. She is the distinguished professor of arts and sciences in astronomy at Cornell University. She has been on a number of high-level committees within the US and International Astronomical Community, including advisory committee for the Division of Engineering and Physical Sciences of the National Academies (2003–2008) and Astronomy and Astrophysics Decadal Review. She was a vice-president of the executive committee of the International Astronomical Union from 2006–2012, and was on the board of trustees of Associated Universities Inc from 1994 until 2016, serving two terms as board chair and one year as interim president.
Nicholas Ulrich Mayall was an American observational astronomer. After obtaining his doctorate from the University of California, Berkeley, Mayall worked at the Lick Observatory, where he remained from 1934 to 1960, except for a brief period at MIT's Radiation Laboratory during World War II.
Steven Scott Vogt is an American astronomer of German descent whose main interest is the search for extrasolar planets.
Jeremy Richard Mould is an Australian astronomer currently at the Centre for Astrophysics and Supercomputing at Swinburne University of Technology. Mould was previously Director of the Research School of Astronomy and Astrophysics at the Australian National University and the American National Optical Astronomy Observatory. He is an Honorary Professorial Fellow, at the University of Melbourne.
The SLUGGS survey is an astronomical survey of 25 nearby early-type galaxies. This survey uses a combination of imaging from Subaru/Suprime-Cam and spectroscopy from Keck/DEIMOS to investigate the chemo-dynamical properties of both the diffuse starlight and the globular cluster systems of the target galaxies. Pilot data for the survey was obtained in 2006 and data acquisition was completed in 2017.
Constance "Connie" Mary Rockosi is a professor and former department chair in the Astronomy and Astrophysics Department at the University of California, Santa Cruz. She earned her PhD in 2001 and helped design the camera for the telescope that was used as part of the initial Sloan Digital Sky Survey (SDSS). She also was in charge of the SDSS-III domain for the Sloan Extension for Galactic Understanding and Exploration (SEGUE) project and is the primary investigator on SEGUE-2. Her focuses involve the study of the Milky Way galaxy, with a focus on the evolution that it took to reach its current state.
Michael Bolte is a Distinguished Professor of Astronomy and Astrophysics at the University of California Santa Cruz. From 2005 - 2012 he was the Director of the University of California Observatories which operates Lick Observatory near San Jose California, co-manages the W.M. Keck Observatory, and leads the University of California participation in the Thirty-Meter Telescope Project. He was a member of the Board of Directors for the CARA Board that oversees the W.M. Keck Observatory from 2005 - 2013 and has been a Director on the Board of Directors for the Thirty-Meter Telescope International Observatory since 2005.
NGC 720 is an elliptical galaxy located in the constellation Cetus. It is located at a distance of circa 80 million light years from Earth, which, given its apparent dimensions, means that NGC 720 is about 110,000 light years across. It was discovered by William Herschel on October 3, 1785. The galaxy is included in the Herschel 400 Catalogue. It lies about three and a half degrees south and slightly east from zeta Ceti.
NGC 1380 is a lenticular galaxy located in the constellation Fornax. It is located at a distance of circa 60 million light years from Earth, which, given its apparent dimensions, means that NGC 1380 is about 85,000 light years across. It was discovered by James Dunlop on September 2, 1826. It is a member of the Fornax Cluster.
NGC 4365 is an elliptical galaxy located in the constellation Virgo. It was discovered by William Herschel on April 13, 1784.
Ann I. Zabludoff is an American astronomer and astrophysicist whose research has included galaxy clusters and the effects of galactic environments on star formation, and the use of gravitational lenses to study the formation and interaction of the earliest galaxies, including observations with the Magellan Telescopes and Hubble Space Telescope. She is a professor of astronomy, astrophysics, and cosmology at the University of Arizona.
References
- 1 2 3 4 "Jean P Brodie". Astronomy and Astrophysics. University of California, Santa Cruz. Retrieved 1 June 2019.
- 1 2 "Professor Jean Brodie". UCO Lick . Retrieved 1 June 2019.
- ↑ "The SLUGGS Survey". Swinburne University of Technology. Retrieved 1 June 2019.
- ↑ "Collaborators". Hubble Heritage Project . Retrieved 1 June 2019.
- ↑ "Jean P. Brodie". International Astronomical Union . Retrieved 1 June 2019.
- ↑ "Jean P. Brodie". John Simon Guggenheim Memorial Foundation. Retrieved 1 June 2019.
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