Results 51 to 60 of about 3,493 (285)
Thermal and maser molecular emission in infrared dark clouds [PDF]
Доклад посвящен наблюдательным проявлениям процесса звездообразования в плотных темных облаках в межзвездной среде Галактики. Приведены примеры таких проявлений, дан краткий обзор характеристик молекулярных облаков.
Шахворостова, Н. Н. +1 more
core +1 more source
The Protostar in the Massive Infrared Dark Cloud IRDC 18223-3 [PDF]
The Astrophysical Journal, 2007 At the onset of high-mass star formation, accreting protostars are deeply embedded in massive cores made of gas and dust. Their spectral energy distribution is still dominated by the cold dust and rises steeply from near-to far-infrared wavelengths. The young massive star-forming region IRDC18223-3 is a prototypical Infrared-Dark-Cloud with a compact ...
Beuther, H., Steinacker, J.
openaire +2 more sources
Single Crystals of Perylene Diimide‐Based Two‐Dimensional Covalent Organic Frameworks
Advanced Materials, EarlyView.Synthesizing extended crystals of two‐dimensional covalent organic frameworks (2D COFs) has remained a major challenge. Here, we report a high‐temperature double‐modulator strategy that provides access to new perylene diimide (PDI)‐based COFs with crystal sizes of up to 50 µm.
Ling Zhang +12 more
wiley +1 more source
The Astrophysical Journal LettersDense filaments are believed to be representative of the initial conditions of star formation in molecular clouds. We have used the MIRI instrument on JWST to image the massive filament NGC 6334M at d ∼ 1.3 kpc with unprecedented resolution and dynamic ...
Philippe André +6 more
doaj +1 more source
The Modelling of InfraRed Dark Clouds
, 2005 13 pages, 13 figures, accepted for publication in A& ...
Ormel, C. W. +3 more
openaire +2 more sources
A multiwavelength observation and investigation of six infrared dark clouds [PDF]
Astronomy & Astrophysics, 2017 Context. Infrared dark clouds (IRDCs) are ubiquitous in the Milky Way, yet they play a crucial role in breeding newly-formed stars. Aims. With the aim of further understanding the dynamics, chemistry, and evolution of IRDCs, we carried out multi-wavelength observations on a small sample. Methods. We performed new observations with the IRAM 30 m and CSO
Chuan-Peng Zhang +4 more
openaire +2 more sources
Advanced Materials, EarlyView.A new benign solvent (1,3‐diphenylacetone) enables a simple, safe, and sustainable dissolution and gelation method to convert waste PET into low density, monolithic aerogels with high mechanical strength (E = 20 MPa) and remarkably low thermal conductivity (k = 21.9 to 28.9 mW/m·K).
Kira R. Baugh +9 more
wiley +1 more source
The Young Ages of 70 μm Dark Clumps Inferred from Carbon Chain Chemistry
The Astrophysical JournalThe physical conditions of the earliest environment of high-mass star formation are currently poorly understood. To that end, we present observations of the carbon chain molecules HC _5 N, CCS, and HC _7 N in the 22–25 GHz band toward 12 high-mass 70 μ m
Kadin Worthen +6 more
doaj +1 more source
Radio-millimetre investigation of galactic infrared dark clouds
, 2002 We present follow-up observations of the mid-Infrared dark clouds selected from the ISOGAL inner Galaxy sample. On-the-fly maps of 13CO, C18O and the 1.2 mm continuum emission were conducted at the IRAM 30-m telescope, showing spectacular correlation ...
P. Hennebelle, D. Teyssier, M. Pérault
core +1 more source
On the infrared void in the Lupus dark clouds [PDF]
Monthly Notices of the Royal Astronomical Society, 2002 Stromgren uvbyβ photometry observations obtained for 205 stars in the general direction of a void in the IRAS 100-μm emission from the Lupus dark cloud complex are presented and analysed. The colour excess versus distance diagram confirms the existence of a region depleted from interstellar material, which is also seen in the ROSAT soft X-ray ...
openaire +1 more source