Molecular Cloud Evolution. I. Molecular Cloud and Thin Cold Neutral Medium Sheet Formation [PDF]
The Astrophysical Journal, 2006 We discuss molecular cloud formation by large-scale supersonic compressions in the diffuse warm neutral medium (WNM). Initially, a shocked layer forms, and within it, a thin cold layer. An analytical model and high-resolution one-dimensional simulations predict the thermodynamic conditions in the cold layer.
Vazquez-Semadeni, E. +4 more
openaire +2 more sources
Turbulent power spectrum in warm and cold neutral medium using the Galactic H
Monthly Notices of the Royal Astronomical Society, 2018 Small-scale fluctuations of different tracers of the interstellar the medium can be used to study the nature of turbulence in astrophysical scales. Of these, the `continuum' emission traces the fluctuations integrated along the line of sight whereas, the spectral line tracers give the information along different velocity channels as well.
Choudhuri, Samir, Roy, Nirupam
openaire +3 more sources
The Physics of the Cold Neutral Medium: Low-frequency Radio Recombination Lines with the Square Kilometre Array [PDF]
Proceedings of Advancing Astrophysics with the Square Kilometre Array — PoS(AASKA14), 2015 J. B. R. Oonk∗1,2, L. K. Morabito1, F. Salgado1, M. C. Toribio2, R. J. van Weeren3, A. G. G. M. Tielens1, and H. J. A. Rottgering1 1Leiden Observatory, Leiden University, PO Box 9513, NL-2300 RA Leiden, the Netherlands 2Netherlands Institute for Radio Astronomy (ASTRON), Postbus 2, NL-7990 AA Dwingeloo, the Netherlands 3Harvard-Smithsonian Center for ...
Raymond Oonk +6 more
openaire +1 more source
Cold Ironing Galvanic Corrosion Issues with Regard to a Shore-to-Ship Medium Voltage Connection
Energies, 2020 Cold ironing refers to the usage of less polluting power supply sources to deliver electricity to the moored ship. Such a shore-to-ship system is used when the ship is at a port so the auxiliary combustion engines may be turned off.
Maciej Kozak, Jarosław Chmiel
doaj +1 more source
The cold neutral phase of the interstellar medium in high redshift galaxies
Journal of Physics: Conference Series, 2019 Abstract We present the results of spectroscopic analysis of seven new H2-bearing damped Ly- systems in redshift range z=2.5 − 3. These systems were originally selected from SDSS catalog using a direct search for H2 and followed up with X-SHOOTER spectrograph at 8-m Very Large Telescope observatory. We measured the column densities of HI,
S A Balashev +7 more
openaire +1 more source
An improved post-processing technique for automatic precipitation gauge time series [PDF]
Atmospheric Measurement Techniques, 2020 The unconditioned data retrieved from accumulating automated weighing precipitation gauges are inherently noisy due to the sensitivity of the instruments to mechanical and electrical interference. This noise, combined with diurnal oscillations and signal
A. Ross +4 more
doaj +1 more source
Constraining of physical conditions in the cold neutral medium using HD/H2 relative abundance
Journal of Physics: Conference Series, 2020 Abstract We present constraints on physical conditions in diffuse HD/H2-bearing molecular clouds using measured HD/H2 column density ratio. We used recently published formalism that describes how this ratio changes with ultraviolet field intensity, number density and cosmic ray ionization rate. Out of them the most important parameter is
D N Kosenko, S A Balashev
openaire +1 more source
THE DISTRIBUTION OF THERMAL PRESSURES IN THE DIFFUSE, COLD NEUTRAL MEDIUM OF OUR GALAXY. II. AN EXPANDED SURVEY OF INTERSTELLAR C I FINE-STRUCTURE EXCITATIONS [PDF]
The Astrophysical Journal, 2011 60 pages, 16 figures, 6 tables, accepted for publication in ApJ.
Jenkins, Edward B., Tripp, Todd M.
openaire +2 more sources
Tiny‐Scale Atomic Structure and the Cold Neutral Medium
The Astrophysical Journal, 1997 We consider the tiny-scale atomic structure (TSAS) on scales of tens of astronomical units, which has been detected by 21 cm absorption lines against quasars with VLBI techniques, against pulsars with time variability and against close binary stars in optical interstellar lines. The TSAS is associated with ordinary cold neutral medium (the CNM).
openaire +1 more source
Ion and neutral beams merge to measure reactions under cold interstellar medium conditions
Scilight, 2022 Experiment becomes the first to employ the merged beams technique to study ion-neutral collisions at a heavy ion storage ring.
openaire +1 more source