The AGN Content of the Two Micron All Sky Survey
Explore the source record for details and available documents.
2 Mass active galacttic nuclei QSO Sky surveys↗
Engineering topics
Cutri, R.
Publications and source records attributed to Cutri, R..
2MASS Extended Source Catalog: Overview and Algorithms
The 2 Micron All-Sky Survey (2MASS)will observe over one-million galaxies and extended Galactic sources covering the entire sky at wavelenghts between 1 and 2 m. Most of these galaxies, from 70 to 80%, will be newly catalogued objetcs.
surveys infrared algorithms 2MASS↗
Milky Way Unveiled to Reveal a Host of New Galaxies
This census has already discovered nearby galaxies previously hidden behind our Galaxy, and will allow delineation of large-scale structures in the distribution of galaxies across the whole sky.
galaxies infrared unveiled Milky Way↗
Discovery of a Brown Dwarf Companion to Gliese 570ABC: A 2MASS T Dwarf Significantly Cooler than Gliese 229B
We present the discovery of a widely separated (258.3+/-0.4) T dwarf companion to the G1 570ABC system.
low mass brown dwarfs↗
Dwarfs Cooler Than M: The Definition of Spectral Type L Using Discoveries from the 2-Micron All-Sky Survey (2MASS)
Before the 2-Micron All-Sky Survey (2MASS) began, only six objects were known with spectral types later than M9.5 V. In the first 371 sq. deg. of actual 2MASS survey data, we have identified another twenty such objects spectroscopically confirmed using the Low Resolution Imaging Spectrograph (LRIS) at the W.M. Keck Observatory.
class T low mass brown dwarf stellar atmosphere 2-↗
The Discovery of a Low Redshift, Red Quasar in the 2MASS Prototype Survey
A prototype camera designed to test the observing and data reductions techniques for the 2 Miron All Sky Survey (2MASS) has been used to search for extremely red objects.
infrared↗
The spectral energy distribution of the z=3 quasar: HS 1946+7658
For the bright z = 3.02 radio-quiet quasar, HS 1946+7658, we have obtained radio to X-ray data within the past year: 5 GHz and 1415 MHz data from the Very Large Array (VLA); IR photometry at J, H, K, L prime (3.4 micrometers and N; IR spectroscopy; UBVRI photometry; optical spectrophotometry and high-resolution spectra; and an X-ray spectrum from the ROSAT Position Sensitive Proportional Counter (PSPC). The spectral energy distribution (SED) constructed from these data is compared to the mean SED for a set of low-redshift quasars, and while they appear generally similar, there are several differences. In relation to the low-redshift mean, the SED of HS 1946+7658 shows (1) only an upper limit at 10 micrometers (a rest wavelength of 2.5 micrometers, indicating that HS 1946+7658 does not have a strong near-IR excess such as hot dust would produce; (2) relatively weak Fe II and Balmer continuum emission at approximately 3000 A; and (3) a steeper turndown shortward of Ly alpha, even after correction for the Ly alpha forest absorption lines.
Kuhn, O.↗