9 research outputs found
COCHISE: a 2.6 meter millimetric telescope at Concordia
COCHISE is a 2.6 meter millimetric telescope, mainly devoted to
cosmological observations, located at Concordia. In this paper we
report on the installation phases and preliminary operations
performed with this instrument. At present, COCHISE is the largest
telescope located at Concordia, for that reason it represents a
pathfinder for future telescopes
COCHISE: a 2.6 meter millimetric telescope at Concordia
COCHISE is a 2.6 meter millimetric telescope, mainly devoted
to cosmological observations, located at Concordia. In this paper
we report on the installation phases and preliminary operations performed
with this instrument. At present, COCHISE is the largest telescope
located at Concordia, for that reason it represents a pathfinder
for future telescopes
COCHISE: the first light of the Italian millimetre telescope at Concordia (Dome C, Antarctica)
COCHISE (Cosmological Observations at Concordia with Highsensitivity
Instrument for Source Extraction) is a 2.6mtelescope located on the
high Antarctic Plateau near the Italian–French Concordia Base. The telescope
is mainly devoted to Cosmological observations, able to operate between
200 ÎĽm and 3 mm of wavelength. In this paper we describe the main characteristics
of the instrument. We also report on the first light, obtained during
summer 2010–2011: this result marks the beginning of millimetre astrophysical
observations at Concordia. Responsivity, noise equivalent temperature and
field of view of the instrument are reported. At present COCHISE is the
largest telescope located at Concordia. Beside the scientific expectations, the
use of this kind of instrument in the Antarctic environment poses technological
aspects of relevant interest: thus COCHISE can be considered as a pathfinder
for future Antarctic telescopes
Millimetric observations of southern HII regions
We report on millimetric continuum observations of two bright compact H II regions, which have been observed for the first time in this frequency range. For the two observed regions (G291.6-0.5 and G291.3-0.7), we derive the flux densities at the two observed wavelengths (1.25 and 2 mm) as well as the spectral index and the temperature of the surrounding dust by fitting a modified blackbody curve to our results combined with IR values obtained from the literature. We also estimate the dust mass and the bolometric luminosity of the two regions
Millimetric observations of southern HII regions
We report on millimetric continuum observations of two bright compact H regions, which have been observed for
the first time in this frequency range. For the two observed regions (G291.6-0.5 and G291.3-0.7), we derive the flux densities
at the two observed wavelengths (1.25 and 2 mm) as well as the spectral index and the temperature of the surrounding dust by
fitting a modified blackbody curve to our results combined with IR values obtained from the literature. We also estimate the
dust mass and the bolometric luminosity of the two regions
Millimetric observations of southern H
We report on millimetric continuum observations of two
bright compact HI
Millimetric observations of southern H II regions
We report on millimetric continuum observations of two
bright compact HI