The Two Micron All-Sky Survey: Removing the Infrared Foreground
نویسندگان
چکیده
We introduce the properties of the Two Micron All-Sky Survey (2MASS) survey for IAU Symposium 204. 2MASS is a near-infrared survey of the entire sky characterized by high reliability and completeness. Catalogs and images for 47% of the sky are now available online. This data release has been used by Wright (2000) and Cambrésy et al. (2000) to subtract the stellar foreground at 1.25 and 2.2 microns from COBE DIRBE data, revealing the cosmological near-infrared background.
منابع مشابه
Analysis of the diffuse near - IR emission from 2 MASS deep integration data : foregrounds vs the cosmic infrared background
This is one of two papers in which we report the detection of structure in the cosmic infrared background (CIB) between 1.25 2.2 μm through the use of data from the Two Micron Sky Survey (2MASS). This paper concentrates on data assembly, analysis and the estimate of the various foreground contributions; the companion paper (Kashlinsky, Odenwald, Mather, Skrutskie, Cutri 2002, hereafter KOMSC) p...
متن کامل- Salamanca ( Singapore : World Scienti c ) THE DENIS 2 MICRON SURVEY AND ITS COSMOLOGICAL APPLICATIONSGary
Near-infrared surveys have very promising cosmological applications. The DENIS 2 micron survey, currently in camera-testing, is scheduled to begin in early 1995, and to map the entire southern sky in the I, J , and K 0 bands. The steps for the near-homogeneous extraction of 10 5 galaxies are outlined, some pitfalls are given, and the estimated limiting capabilities of the survey are presented. ...
متن کاملDiscovery of a Second L Subdwarf in the Two Micron All Sky Survey
I report the discovery of the second L subdwarf identified in the Two Micron All Sky Survey, 2MASS J16262034+3925190. This high proper motion object (μ = 1. 27±0. 03 yr) exhibits near-infrared spectral features indicative of a subsolar metallicity L dwarf, including strong metal hydride and H2O absorption bands, pressure-broadened alkali lines, and blue near-infrared colors caused by enhanced c...
متن کاملThe Optical and Near-Infrared Properties of 2837 Quasars in the UKIRT Infrared Deep Sky Survey (UKIDSS)
The UKIRT Infrared Deep Sky Survey (UKIDSS) is the first of a new generation of hemispheric imaging projects to extend the work of the Two Micron All Sky Survey (2MASS) by reaching three magnitudes deeper in Y JHK imaging, to K = 18.2 (5σ, Vega) over wide fields. Better complementing existing optical surveys such as the Sloan Digital Sky Survey (SDSS), the resulting public imaging catalogues pr...
متن کاملIntegrated-light Two Micron All Sky Survey Infrared Photometry of Galactic Globular Clusters
We have mosaicked Two Micron All Sky Survey (2MASS) images to derive surface brightness profiles in J, H, and Ks for 104 Galactic globular clusters. We fit these with King profiles and show that the core radii are identical to within the errors for each of these IR colors and are identical to the core radii at V in essentially all cases. We derive integrated-light colors V ! J , V ! H , V ! Ks,...
متن کامل