315 derived from 2MASS
(see remarks about Table 2, above) indicate a blended spectral type of around F2 and temperature ~7000 K.
Redshift Survey is a wonderfully complete new look at the local universe -- particularly near the Galactic plane," Masters said.
Redshift Survey is a wonderfully complete new look at the local universe -- particularly near the Galactic plane," Karen Masters, a professor at the University of Portsmouth in the U.
Of all the stars recorded by 2MASS
, the astronomers chose to analyze carbon stars first because of three remarkable properties.
X-ray observations from Chandra and XMM-Newton have been combined with infrared data from the 2MASS
project and optical data from the Digitized Sky Survey.
By measurement of the 2MASS
data I derive a separation of 15.
colours limit the visual extinction to [A.
Another large survey, known as 2MASS
(2-Micron All Sky Survey), has discovered an additional four of these enigmatic objects.
5-meter telescope at Las Campanas Observatory in Chile to capture repeated images of a brown dwarf dubbed 2MASS
2139 over several hours, recording the largest variations in brightness ever seen on a cool brown dwarf.
V and R magnitudes for possible comparison stars were calculated from r' magnitudes in the CMC-14 catalogue and J and K magnitudes in the 2MASS
catalogue (both accessible through Vizier) using the formulae of Dymock & Miles (19) and Greaves.
H I line observations of 2MASS
galaxies in the zone of avoidance.
The final sample will contain about 600 galaxies across the southern ZOA and can be compared directly to the 2MASS
TF survey across nearly the entire sky (away from the Galactic Plane).