Results 41 to 50 of about 834,499 (261)

The photodissociation and chemistry of CO isotopologues: applications to interstellar clouds and circumstellar disks [PDF]

, 2009
Aims. Photodissociation by UV light is an important destruction mechanism for carbon monoxide (CO) in many astrophysical environments, ranging from interstellar clouds to protoplanetary disks. The aim of this work is to gain a better understanding of the
R. Visser, E. Dishoeck, J. K. L. Observatory, Mpe Garching, O. Observatory   +4 more
semanticscholar   +1 more source

Interstellar absorptions and shocked clouds towards supernova remnant RX J0852.0-4622

, 2012
We present results of survey of interstellar absorptions towards supernova remnant (SNR) RX J0852.0-4622. The distribution of KI absorbers along the distance of the background stars is indicative of a local region (d100km/s towards three stars and ...
A. F. Iyudin, Aschenbach, Bertin, Bocchino, Borkowski, Braun, Cha, Cha, Cox, Crawford, Crawford, Danks, Draine, Famaey, Friedman, Gredel, Iyudin, Iyudin, Jenkins, Jenkins, Jura, Klein, Kritsuk, Kupka, McKee, N. N. Chugai, Patnaude, Rots, Routly, Savage, Shull, Stanimirović, Sutherland, Tielens, Tsymbal, Wallerstein, Welty, Welty, Welty, Welty, Woermann, Wolfire, Wolfire, Yu. V. Pakhomov   +43 more
core   +1 more source

Cloud-to-cloud Velocity Dispersions Across a Local Arm Segment

The Astrophysical Journal
Using a large sample of 9617 molecular clouds (MCs) from the Milky Way Imaging Scroll Painting survey, we mainly measure one-dimensional cloud-to-cloud velocity dispersions across a 450 deg ^2 segment of the Local Arm in the Galactic second quadrant.
Lixia Yuan, Ji Yang
doaj   +1 more source

High-resolution Observations of H i in the IC 63 Reflection Nebula

The Astronomical Journal, 2023
Photodissociation regions (PDRs), where the (far-)ultraviolet light from hot young stars interact with the gas in surrounding molecular clouds, provide laboratories for understanding the nature and role of feedback by star formation on the interstellar ...
Lars Bonne, B-G Andersson, Robert Minchin, Archana Soam, Joshua Yaldaei, Kristin Kulas, Janik Karoly, Lewis B. G. Knee, Siddharth Kumar, Nirupam Roy   +9 more
doaj   +1 more source

A Herschel [C II] Galactic plane survey II: CO-dark H2 in clouds [PDF]

, 2014
ABRIDGED: Context: HI and CO large scale surveys of the Milky Way trace the diffuse atomic clouds and the dense shielded regions of molecular hydrogen clouds.
Goldsmith, P. F., Langer, W. D., Pineda, J. L., Velusamy, T., Willacy, K.   +4 more
core   +1 more source

A sub-parsec resolution simulation of the Milky Way: global structure of the interstellar medium and properties of molecular clouds [PDF]

, 2013
We present a self-consistent hydrodynamical simulation of a Milky Way-like galaxy at a resolution of 0.05 pc. The model includes star formation and a new implementation of stellar feedback through photoionization, radiative pressure and supernovae.
F. Renaud, F. Bournaud, E. Emsellem, B. Elmegreen, R. Teyssier, J. Alves, D. Chapon, F. Combes, A. Dekel, J. Gabor, P. Hennebelle, K. Kraljic   +11 more
semanticscholar   +1 more source

Mid‐infrared Spectroscopy of Protonated Benzonitrile, 2‐Cyanonaphthalene, and 9‐Cyanoanthracene for Astrochemical Consideration

ChemPhysChem, EarlyView.
Experimental infrared absorption spectra of three protonated cyano‐substituted PAHs measured by infrared multiple photon dissociation using the free‐electron laser Free‐Electron Laser for Infrared eXperiments are studied. These spectra are compared to an emission spectrum measured by JWST, and the largest measured protonated cyano‐PAH, cyanoanthracene,
Anne P. Rasmussen, Corentin Rossi, Bérenger Gans, Laura Finazzi, Jos Oomens, Giel Berden, Ugo Jacovella   +6 more
wiley   +1 more source

FORMATION OF SMALL-SCALE STRUCTURES IN THEINTERSTELLAR MEDIUM

Odessa Astronomical Publications, 2008
We consider formation of small scale structures in the process of interstellar cloud destruction by shock waves. We calculate statistical properties of HI column densities, optical depth and brightness temperature in 21 cm line.
E. E. Matvienko, E. O. Vasiliev, Yu. A. Shchekinov   +2 more
doaj   +1 more source

Is the Sun Embedded in a Typical Interstellar Cloud?

, 2008
The physical properties and kinematics of the partially ionized interstellar material near the Sun are typical of warm diffuse clouds in the solar vicinity.
A. Czechowski, A.C. Cummings, A.C. Cummings, B. Flynn, B.D. Savage, B.E. Wood, B.E. Wood, C. Heiles, C.S. Bowyer, C.S. Weller, D.E. Welty, E. Gruen, E. Möbius, E. Salerno, E.B. Jenkins, J. Tinbergen, J. Vallerga, J.D. Slavin, J.L. Han, J.L. Linsky, J.M. Ajello, J.P. Simpson, K. Cheng, L.A. Marschall, L.M. Haffner, L.M. Haffner, M. MacLow, M. Witte, M. Wolleben, N. Lehner, N.V. Pogorelov, P. Frisch, P. Routly Jr., P.B. Lucke, P.C. Frisch, P.C. Frisch, P.C. Frisch, P.C. Frisch, P.C. Frisch, P.C. Frisch, P.M. Gondhalekar, Priscilla C. Frisch, R. Crutcher, R. Lallement, R. Lallement, R. Ratkiewicz, R. Shetty, R.J. Rand, R.J. Reynolds, R.J. Reynolds, S. Redfield, S. Redfield, S. Redfield, S.M. Kahn, T.F. Adams, T.J. Linde, V. Piirola, V.V. Izmodenov   +57 more
core   +1 more source

Exploring the Effects of Reduced Gravitational Field Impacts on Convective Heat Transfer: A Comprehensive Review

Heat Transfer, EarlyView.
ABSTRACT This review explores the impact of gravitational instability on convective heat transfer, integrating existing research results and theoretical models. Gravitational instability is vital in promoting or hindering convective actions in different systems, such as atmospheric events, ocean currents, and industrial processes.
Hossam A. Nabwey, Muhammad Ashraf, A. M. Rashad, Ali J. Chamkha   +3 more
wiley   +1 more source