2MASS
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| Alternative names | Two Micron All-Sky Survey |
|---|---|
| Website | www |
 Related media on Commons | |
The Two Micron All-Sky Survey, or 2MASS, was an
frequency bands (J, H, and K) near 2 micrometres, from which the photometric survey with its HgCdTe detectors derives its name.[1]
2MASS produced an
galaxies
. In addition, 1 million objects were cataloged in the 2MASS Extended Source Catalog (2MASX). The cataloged objects are designated with a "2MASS" and "2MASX"-prefix respectively.
Catalog
The final data release for 2MASS occurred in 2003,[3] and is served by the Infrared Science Archive. The goals of this survey included:
- Detection of galaxies in the "Zone of Avoidance", a strip of sky obscured in visible light by our own galaxy, the Milky Way.
- Detection of brown dwarfs. 2MASS discovered a total of 173, including 2MASS J04414489+2301513.[4]
- An extensive survey of low mass stars, the most common type of star both in our own galaxy and others.
- Cataloging of all detected stars and galaxies.
- Infrared measurements from the 2MASS survey have been particularly effective at unveiling previously undiscovered star clusters.[5][6]
Numerical descriptions of point sources (
Canis Major Dwarf Galaxy
, at that time the closest known satellite galaxy to the Milky Way, based on analysis of 2MASS stellar data.
The resulting data and images from the survey are currently in the public domain, and may be accessed online for free by anyone.[7] There is also a list of 2MASS science publications with links to free pre-publication copies of the papers.[8]
2MASS is sponsored by the
Caltech), NASA, and the National Science Foundation
(NSF).
References
- ^ a b "About 2MASS (A Brief Explanation of 2MASS)". University of Massachusetts, Infrared Processing and Analysis Center (JPL/ Caltech), NASA, NSF. 2006-02-01. Retrieved 2008-09-21.
- ^ "Two Micron All Sky Survey (2MASS)". NASA/IPAC Infrared Science Archive. Retrieved 2011-10-22.
- ^ "2MASS All-Sky Data Release FAQ Page". old.ipac.caltech.edu. Caltech. Retrieved 14 December 2018.
- Bibcode:2003IAUS..211..189K. Archived from the original (PDF) on 2020-08-20. Retrieved 2011-10-20.)
{{cite book}}:|journal=ignored (help - ^ Froebrich, D.; Scholz, A.; Raftery, C. L. (2007). A systematic survey for infrared star clusters with |b| <20° using 2MASS, MNRAS, 347, 2
- ^ Majaess, D. (2013). Discovering protostars and their host clusters via WISE, ApSS, 344, 1
- ^ "2MASS Data Access". The Two Micron All Sky Survey at IPAC. December 20, 2006. Retrieved September 2, 2012.
- ^ "2MASS Science Publications". The Two Micron All Sky Survey at IPAC. February 1, 2006. Retrieved September 2, 2012.
External links
- 2MASS at IPAC
- 2MASS at UMass
- 2MASS Atlas Image Gallery: Miscellaneous Objects
- Low-Mass Stars and Brown Dwarfs in 2MASS
- 2MASS All-Sky Release Database
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| Infra-red | |
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