They Seek to Map All of Creation: "No Part of the Sky Will Be Hidden"
Scientists from across the world hope to create the most complete map of the universe ever by looking at the entire spectrum over eons of time. and sharing that information.
Under Kollmeier’s leadership, the survey’s fifth generation will build off the earlier SDSS incarnations, but will break new ground by pioneering all-sky observations, and by monitoring over time the changes in a million objects.
“With observations in both hemispheres, no part of the sky will be hidden from SDSS-V,” she said. In the tradition of previous Sloan Surveys, SDSS-V is committed to making its data publicly available in a format that is helpful to a broad range of users, from the youngest students to both amateur and professional astronomers.
Infrared image of the Milky Way galaxy.
SDSS-V will be carried out in two hemispheres, at Apache Point Observatory (APO) and Las Campanas Observatory (LCO). Multi-object fiber spectroscopy will be obtained with two 2.5m telescopes, each feeding the near-infrared APOGEE and optical BOSS spectrographs, for the Milky Way Mapper and Black Hole Mapper surveys. The Local Volume Mapper will make use of integral-field spectroscopy, mostly at smaller telescopes at APO and LCO.
“I am delighted to see SDSS-V move forward and to see Carnegie’s collaboration with the survey expand,” said Carnegie Observatories Director John Mulchaey.
“Las Campanas Observatory will channel its best resources to enable outstanding science from SDSS-V,” added the observatory’s Director Leopoldo Infante.
SDSS-V will make use of both optical and infrared spectroscopy, to observe not only in two hemispheres, but also at two wavelengths of light. It will take advantage of the recently installed second APOGEE spectrograph on Carnegie’s du Pont telescope. Both it and its twin on Apache Point penetrate the dust in our galaxy that confounds optical spectrographs to obtain high-resolution spectra for hundreds of stars at infrared wavelengths. In the optical wavelengths, the survey’s twin BOSS spectrographs can each obtain simultaneous spectra for 500 stars and quasars. What’s more, a newly envisioned pair of Integral Field Unit spectrographs can each obtain nearly 2,000 spectra contiguously across objects in the sky.
Schematic overview of the innermost regions around a quasar’s central supermassive black hole (BH), showing the X-ray corona, accretion disk, and broad line region. BHM will take three parallel approaches to explore the physics of supermassive black hole accretion and dynamics, with top left: reverberation mapping (image from Pei et al. 2017), top centre: eROSITA follow-up, and top right: multi-epoch spectroscopy
Local Volume Mapper footprint and sampling, showing in the centre the Milky Way (blue) on top of the Milky Way Mapper target density map. Zooming into the Orion region (lower right), APOGEE targets are overlaid in yellow. Other bottom panels show the Large Magellanic Cloud (including the 30 Doradus star forming region), while the top panel shows the LVM IFU field-of-view on M31. A statistical sample of H II regions is shown in green, and will be observed at 20 pc resolution across M31, and at ~ 50 pc resolution across other nearby galaxies, connecting small scale physics and large scale galaxy evolution.
“It’s wonderful to see the scope and breadth of the next phase of this amazing survey take shape,” said Mike Blanton of New York University, the current SDSS Director and chair of the SDSS-V Steering Committee.
Contacts and sources:
Carnegie Institution for Science
Sloan Digital Sky Survey (SDSS)Vanderbilt University
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Pipe dream, NASA is all fake!
thats a great idea, i wonder if anyone else on another planet tried to do the same
This is sooooooo funny. If they want to map the universe they should start here. Then they will get it right. http://www.itshisstory.com/globe
The map will be useful once we get faster than light transportation. You get lost you can check the map. Or pull in at a FTL engine fuel station and ask for directions.