Results 91 to 100 of about 20,687 (218)

A Multi-Wavelength Study of Sgr A*: The Role of Near-IR Flares in Production of X-ray, Soft $\gamma$-ray and Sub-millimeter Emission

open access: yes, 2005
(abridged) We describe highlights of the results of two observing campaigns in 2004 to investigate the correlation of flare activity in Sgr A* in different wavelength regimes, using a total of nine ground and space-based telescopes.
A. Goldwurm   +12 more
core   +3 more sources

SO Emission in the Dynamically Perturbed Protoplanetary Disks around CQ Tau and MWC 758

open access: yesThe Astrophysical Journal
We report the serendipitous detection of the SO J _N  = 6 _5 –5 _4 (219.949 GHz) rotational transition in archival Atacama Large Millimeter/submillimeter Array observations of the spiral hosting protoplanetary disks around CQ Tau (with ≈4.9 σ ...
Francesco Zagaria   +27 more
doaj   +1 more source

Adaptable Radiative Transfer Innovations for Submillimeter Telescopes (ARTIST)

open access: yes, 2010
Submillimeter observations are a key for answering many of the big questions in modern-day astrophysics, such as how stars and planets form, how galaxies evolve, and how material cycles through stars and the interstellar medium.
Bertoldi, Frank   +10 more
core   +1 more source

Mass Assembly in Massive Star Formation: A Fragmentation Study of ATLASGAL Clumps

open access: yesThe Astrophysical Journal
The mass assembly in star-forming regions arises from the hierarchical structure in molecular clouds in tandem with fragmentation at different scales.
Jagadheep D. Pandian   +5 more
doaj   +1 more source

Small Explorer project: Submillimeter Wave Astronomy Satellite (SWAS). Mission operations and data analysis plan [PDF]

open access: yes
The Mission Operations and Data Analysis Plan is presented for the Submillimeter Wave Astronomy Satellite (SWAS) Project. It defines organizational responsibilities, discusses target selection and navigation, specifies instrument command and data ...
Melnick, Gary J.
core   +1 more source

A Search for CO(J=3-2) Emission from the Host Galaxy of GRB 980425 with the Atacama Submillimeter Telescope Experiment

open access: yes, 2006
We report on a deep search for CO(J=3-2) line emission from the host galaxy of GRB 980425 with the Atacama Submillimeter Telescope Experiment (ASTE). We observed five points of the galaxy covering the entire region. After combining all of the spectra, we
Cortes, Juan R.   +33 more
core   +2 more sources

Far-field Pattern Analysis Based on Piecewise Aperture Field Integration for Leighton Chajnantor Telescope Antenna under Gravity and Wind Load

open access: yesThe Astronomical Journal
The Caltech Submillimeter Observatory telescope will be relocated from Mauna Kea, Hawaii to Chajnantor Plateau, Chile, refurbished there and renamed the Leighton Chajnantor Telescope (LCT).
Jia You, Zheng Wang
doaj   +1 more source

Some Problems and Instrumental Features of Submillimeter Astronomy [PDF]

open access: yesHighlights of Astronomy, 1968
Modern astronomy includes optical, ultraviolet, infrared and, in recent years, radio, γ-ray, and X-ray astronomy. Such a classification is justified to a certain degree. In fact, the difference in wavelength ranges causes a distinction in the methods and techniques of receiving radiation.
openaire   +1 more source

Improved Carbon and Nitrogen Isotopic Ratios for CH3CN in Titan’s Atmosphere Using ALMA

open access: yesThe Planetary Science Journal
Titan, Saturn’s largest satellite, maintains an atmosphere composed primarily of nitrogen (N _2 ) and methane (CH _4 ) that leads to complex organic chemistry.
Jonathon Nosowitz   +8 more
doaj   +1 more source

The Proxima Centauri Campaign—First Constraints on Millimeter Flare Rates from ALMA

open access: yesThe Astrophysical Journal
Proxima Centauri (Cen) has been the subject of many flaring studies due to its proximity and potential to host habitable planets. The discovery of millimeter flares from this M dwarf with Atacama Large Millimeter/submillimeter Array (ALMA) has opened a ...
Kiana Burton   +8 more
doaj   +1 more source

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