![]() ![]() ![]() Subtraction of the integrated light of galaxies (IGL) fainter than the photometric detection-limit from the total COB level leaves a diffuse flux component of unknown origin. Doing these subtractions yields a highly significant detection of the COB. Isolating the COB contribution to the raw total requires subtracting scattered light from bright stars and galaxies, faint stars below the photometric detection-limit within the fields, and diffuse Milky Way light scattered by infrared cirrus. This is about 10 times darker than the darkest sky accessible to the Hubble Space Telescope, highlighting the utility of New Horizons for detecting the cosmic optical background (COB). The average raw level measured while New Horizons was 42 to 45 AU from the Sun is 33.2 (+/-0.5) nW/m^2/sr. Retrieved 30 September 2020.Highlights of my recent and current research collaborations:Ĭosmic Optical Background: using data from the LORRI camera onboard the New Horizons probe, we measured the optical-band sky brightness within seven high galactic latitude fields. ^ "JPL Small-Body Database Browser: 166746 Marcpostman (2002 TY311)" ( last obs.). ![]() "Anomalous Flux in the Cosmic Optical Background Detected with New Horizons Observations". "New Horizons Observations of the Cosmic Optical Background". "Chandra Observations of Abell 2261 Brightest Cluster Galaxy, a Candidate Host to a Recoiling Black Hole". ^ Gültekin, Kayhan Burke-Spolaor, Sarah Lauer, Tod R."The Dust and Molecular Gas in the Brightest Cluster Galaxy in MACS 1931.8-2635". ^ Fogarty, Kevin Postman, Marc Li, Yuan Dannerbauer, Helmut Liu, Hauyu Baobab Donahue, Megan Ziegler, Bodo Koekemoer, Anton Frye, Brenda (2019)."The Relationship Between Brightest Cluster Galaxy Star Formation and the Intracluster Medium in CLASH". ^ Fogarty, Kevin Postman, Marc Larson, Rebecca Donahue, Megan Moustakas, John (2017)."Brightest Cluster Galaxies at the Present Epoch". He was elected a Legacy Fellow of the American Astronomical Society in 2020. ![]() The official naming citation was published by the Minor Planet Center on 27 January 2013 ( M.P.C. Asteroid 166746 Marcpostman discovered by the Sloan Digital Sky Survey at Apache Point Observatory in 2002, was named in his honor. Postman received the Association of Universities for Research in Astronomy (AURA)’s Outstanding Scientific Achievement Award in 1993 and again in 2013. Marc Postman is the son of educator, author and cultural critic Neil Postman. Postman is currently the interim Deputy Director of the Space Telescope Science Institute. In 1989, he joined the scientific research staff at the Space Telescope Science Institute. Gunn in Princeton University’s Department of Astronomy. in 1986, he was a postdoctoral fellow working with Prof. in Astronomy at Harvard University, working with Dr. Postman attended the Massachusetts Institute of Technology as an undergraduate from 1978 to 1981, receiving a S.B. Postman is also a guest investigator on the New Horizons science team to study the ultraviolet and optical background radiation field as seen from the unique vantage point beyond 45 AU from the Sun. Postman was the Principal Investigator of the HST multi-cycle treasury program Cluster Lensing and Supernova survey with Hubble, a study of dark matter in clusters of galaxies. He has also served on the Council of the American Astronomical Society and on the Committee for the Status of Women in Astronomy. He was a member of the Hubble Space Telescope Advanced Camera for Surveys investigation team and project scientist for the STScI Digitized Sky Survey program. A modified version of this concept, the Habitable Worlds Observatory, is now being developed by NASA. He served on the science and technology definition team for the Large Ultraviolet Optical Infrared Surveyor concept (aka LUVOIR), which was proposed to the 2020 Astronomy and Astrophysics Decadal Survey. Postman was the lead or co-investigator on several joint science and engineering working groups exploring the feasibility and science capabilities of future large optical / near infrared telescopes on the ground and in space. His recent research includes characterizing the properties of brightest cluster galaxies and placing new constraints on the cosmic optical background. His work focuses on determining, observationally, the relationships between galaxy-scale phenomena and the surrounding large-scale environment and matter distribution. Include observational studies of the formation and evolution of galaxies and large scale structure in the Marc Postman (born April 6, 1958) is an American astronomer at the Space Telescope Science Institute in Baltimore, Maryland, United States. AURA Award for Outstanding Scientific Achievement (1993, 2013) ![]()
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