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Could acid-neutralizing life-forms make habitable pockets in Venus’ clouds?（图）
酸中和 金星云 生命形式
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2023/6/8
It’s hard to imagine a more inhospitable world than our closest planetary neighbor. With an atmosphere thick with carbon dioxide, and a surface hot enough to melt lead, Venus is a scorched and suffoca...
New radio map of Jupiter reveals what’s beneath colorful clouds
New radio map Jupiter beneath colorful clouds
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2016/6/12
tronomers using the upgraded Karl G. Jansky Very Large Array in New Mexico have produced the most detailed radio map yet of the atmosphere of Jupiter, revealing the massive movement of ammonia gas tha...
Star formation in bright-rimmed clouds. I. Millimeter and submillimeter molecular line surveys
pre-main sequence clouds
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2014/12/26
We present the results of the first detailed millimeter and submillimeter molecular line survey of bright-rimmed clouds, observed at FCRAO in the CO (J = 1 → 0), C18O (J = 1 → 0), HCO+ (J = 1 → 0), H1...
Star formation in bright-rimmed clouds. I. Millimeter and submillimeter molecular line surveys
pre-main sequence clouds
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2014/12/26
We present the results of the first detailed millimeter and submillimeter molecular line survey of bright-rimmed clouds, observed at FCRAO in the CO (J = 1 → 0), C18O (J = 1 → 0), HCO+ (J = 1 → 0), H1...
Water absorption from line-of-sight clouds toward W49A
W49 formation
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2014/12/24
We have observed six clouds along the line of sight toward W49A using the Submillimeter Wave Astronomy Satellite and several ground-based observatories. The ortho-H2O 110 → 101 and OH (1665 and 1667 M...
Radio and X-ray images of the SNR G18.8+0.3 interacting with molecular clouds
Radio X-ray images
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2014/12/23
New HI images from the VLA Galactic Plane Survey (VGPS) show clear absorption features associated with the supernova remnant (SNR) G18.8+0.3. High-resolution 13CO images reveal that molecular clouds o...
NEUTRAL HYDROGEN CLOUDS IN THE M81/M82 GROUP
interactions surveys
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2014/12/23
We have observed a 3° × 3° area centered on the M81/M82 group of galaxies using the Robert C. Byrd Green Bank Telescope in a search for analogs to the high-velocity clouds of neutral hydrogen found ar...
The Magellanic Clouds Survey: a Bridge to Nearby Galaxies
Nearby Galaxies Magellanic Clouds
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2014/12/22
We outline to the community the value of a Magellanic Clouds Survey that consists of three components: I) a complete-area, high resolution, multi-band UV-near-IR broadband survey; II) a narrowband sur...
Herschel observations of ortho- and para-oxidaniumyl (H2O+) in spiral arm clouds toward Sagittarius B2(M) *,**
H2O+ massive star forming
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2014/12/22
H2O+ has been observed in its ortho- and para- states toward the massive star forming core Sgr B2(M), located close to the Galactic center. The observations show absorption in all spiral arm clouds be...
THE MASS DISTRIBUTION OF STARLESS AND PROTOSTELLAR CORES IN GOULD BELT CLOUDS
Ophiuchus Tauru
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2014/12/22
Using data from the SCUBA Legacy Catalogue (850 μm) and Spitzer Space Telescope (3.6-70 μm), we explore dense cores in the Ophiuchus, Taurus, Perseus, Serpens, and Orion molecular clouds. We develop a...
Distribution ofWater Vapor in Molecular Clouds
either optical depth excitation effects
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2014/12/20
We report the results of a large-area study of water vapor along the Orion Molecular Cloud ridge, the purpose of which was to determine the depth-dependent distribution of gas-phase water in dense mol...
Probing chemical evolution in molecular clouds with millimeter -wave observations
Cereal chemistry The interstellar medium Millimeter wavelength Molecular emission Dynamics Temperature observation The density of hydrogen molecules
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2014/12/9
We present results for a study of gas-phase and grain chemical processes in the dense interstellar medium (ISM) using millimeter-wavelength observations of the pure rotational transitions of molecules...
Models and observations of the millimeter and submillimeter molecular line emission of bright -rimmed clouds
Mm The mm Molecular line measurement Hereditary hemorrhagic capillaries expansion Observation of hydrodynamic shocks
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2014/12/9
We present the results of a comparison of new millimeter and submillimeter molecular line survey of bright-rimmed clouds, observed at FCRAO in the CO (J = 1 → 0), C18O (J = 1 → 0), HCO+ (J = 1 → 0), H...
Mixing in star-forming clouds explains why sibling stars look alike（图）
sibling star-forming clouds
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2014/9/12
The chemical uniformity of stars in the same cluster is the result of turbulent mixing in the clouds of gas where star formation occurs, according to a study by astrophysicists at the University of Ca...
Observations and Analysis of High-Resolution Magnetic Field Structures in Molecular Clouds
Observations Analysis High-Resolution Magnetic Field Structures Molecular Clouds
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2012/2/23
Recent high-angular-resolution (up to 0.7") dust polarization observations toward star forming regions are summarized. With the Sub-Millimeter Array, the emission from the dense structures is traced a...