Book ChapterDOI
The Two Micron All Sky Survey (2MASS): Overview and Status
M. F. Skrutskie,Stephen E. Schneider,R. Stiening,S. E. Strom,Martin D. Weinberg,C. A. Beichman,T. Chester,R. M. Cutri,C. Lonsdale,J. Elias,R. Elston,R. Capps,John M. Carpenter,J. Huchra,James Liebert,D. Monet,S. D. Price,Patrick Seitzer +17 more
- Vol. 210, pp 25-32
TLDR
The Two Micron All Sky Survey (2MASS) project as discussed by the authors was the first to map the entire sky in the J (1.13−1.37 νm), H (1,50−1,1.50 μm), and K s (2.00−2.32 μm) photometric bands to a 3σ limiting sensitivity of 17.1, 16.4 and 15.6 niag, respectively.Abstract:
Beginning in early 1997, the Two Micron All Sky Survey (2MASS) project will map the entire sky in the J (1.13–1.37 νm), H (1.50–1.50 μm), and K s (2.00–2.32 μm) photometric bands to a 3σ limiting sensitivity of 17.1, 16.4 and 15.6 niag, respectively. Often these flux limits are presented as 10σ values (15.8, 15.1, and 14.3 mag, respectively) since this flux level sets the point source completeness (0.99) and reliability (0.9995) regnirernents. The pixel size for the survey is 2.0“. The survey cameras (one for each hemisphere) each contain three NICMOS3 arrays which similtaneously image an 8.5’×8.5’ field in all three survey wavebands. The 1.3 ni survey telescopes scan steadily in declination at a rate of about one arcminute per second while the telescope secondary mirror tilts in the opposite direction to freeze the focal plane position on the sky. Subsequent frames overlap by 84% so that each pixel on the sky is exposed at six dithered positions relative to pixel centers. The frame exposure time is 1.3 seconds.read more
Citations
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Journal ArticleDOI
The discovery and analysis of very metal-poor stars in the galaxy
TL;DR: Very metal-deficient stars have been identified in the last few decades as discussed by the authors, leading to the discovery of the majority of stars with [Fe/H] < −2.0.
Journal ArticleDOI
A simple model to interpret the ultraviolet, optical and infrared emission from galaxies
TL;DR: In this article, the spectral energy distribution of the power reradiated by dust in stellar birth clouds and in the ambient interstellar medium (ISM) in galaxies is computed using an angle-averaged prescription.
Journal ArticleDOI
A three-dimensional Galactic extinction model
TL;DR: In this paper, a large-scale 3D model of the Galactic extinction is presented based on the Galactic dust distribution model of Drimmel & Spergel (2001), and the extinction A V to any point within the Galactic disk can be quickly deduced using a set of three-dimensional Cartesian grids.
Journal ArticleDOI
M stars as targets for terrestrial exoplanet searches and biosignature detection.
John Scalo,Lisa Kaltenegger,Antígona Segura,Malcolm Fridlund,Ignasi Ribas,Yu. N. Kulikov,John Lee Grenfell,Heike Rauer,P. Odert,Martin Leitzinger,Franck Selsis,Maxim L. Khodachenko,Carlos Eiroa,James F. Kasting,Helmut Lammer +14 more
TL;DR: It is concluded that attempts at remote sensing of biosignatures and nonbiological markers from M star planets are important, not as tests of any quantitative theories or rational arguments, but instead because they offer an inspection of the residues from a Gyr-long biochemistry experiment in the presence of extreme environmental fluctuations.
Journal ArticleDOI
Kmtnet: a network of 1.6 m wide-field optical telescopes installed at three southern observatories
Seung-Lee Kim,Chung-Uk Lee,Byeong-Gon Park,Dong-Jin Kim,Sang-Mok Cha,Yongseok Lee,Cheongho Han,Moo-Young Chun,In-Soo Yuk +8 more
TL;DR: The Korea Microlensing Telescope Network (KMTNet) as mentioned in this paper is a wide-field photometric system installed by the Korea Astronomy and Space Science Institute (KASI).
References
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Journal ArticleDOI
The Two Micron All Sky Survey
S. G. Kleinmann,M. G. Lysaght,W. L. Pughe,Stephen E. Schneider,Michael F. Skrutskie,Martin D. Weinberg,Stephan D. Price,K. Matthews,B. T. Soifer,John P. Huchra,Charles Beichman,T. Chester,Thomas H. Jarrett,G. L. Kopan,Carol J. Lonsdale,J. H. Elias,James Liebert,Patrick Seitzer +17 more
TL;DR: The Two Micron All Sky Survey (2MASS) as discussed by the authors was the first large-scale near-infrared sky survey, which was performed at Caltech in the late 1960's.
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