Results 101 to 110 of about 156,409 (216)

Cumulenic and heterocumulenic anions: potential interstellar species?

, 2001
The definitive version is available at www.blackwell-synergy.comA recent theoretical investigation by Terzieva & Herbst of linear carbon chains, Cn where n ≥ 6, in the interstellar medium has shown that these species can undergo efficient radiative ...
Blanksby, S., Bowie, J., Dua, S., Bowie, John H., McAnoy, Andrew M., Mc Anoy, A., Blanksby, Stephen J., Dua, Suresh   +7 more
core   +1 more source

The Abundance of Mg in the Interstellar Medium

, 1997
An empirical determination of the f-values of the far-UV Mg II lines at 1239 A and 1240 A is reported. The strong near-UV Mg II lines at 2796 A and 2803 A are generally highly saturated along most interstellar sightlines outside the local ISM and usually yield extremely uncertain estimates of Mg II column densities in interstellar gas.
openaire   +2 more sources

Laboratory Rotational Spectroscopy Leads to the First Interstellar Detection of Singly Deuterated Methyl Mercaptan (CH2DSH)

The Astrophysical Journal Letters
We report an extensive rotational spectroscopic analysis of singly deuterated methyl mercaptan (CH _2 DSH) using both millimeter and far-infrared synchrotron spectra to achieve a global torsional analysis of the three lowest torsional substates ( e _0 ...
Hayley A. Bunn, Silvia Spezzano, Laurent H. Coudert, Jean-Claude Guillemin, Yuxin Lin, Christian P. Endres, Brant Billinghurst, Olivier Pirali, Jes Jørgensen, Valerio Lattanzi, Paola Caselli   +10 more
doaj   +1 more source

H2cs Abundances And Ortho-to-para Ratios In Interstellar Clouds

, 1991
The published version is located at http://adsabs.harvard.edu/full/1991A%26A...244..181MSeveral H2CS ortho and para transitions have been observed toward interstellar molecular clouds, including cold, dark clouds and star-forming regions. H2CS fractional
Irvine, William M., Brewer, MK, Minh, YC
core   +3 more sources

Bernhardt-2018-abundances-time-series

, 2018
Time series of population abundances in experimental populations of Tetraselmis tetrahele grown over a temperature ...
Bernhardt, Joey R, Jennifer M Sunday (7876100), Joey R Bernhardt (7876097), O'Connor, Mary I, Sunday, Jennifer M, Mary I O'Connor (7876103)   +5 more
core   +1 more source

The Impact of Hydrogen Atom Tunneling on Aromatic Chemistry in TMC-1

The Astrophysical Journal
Hydrogen atom tunneling likely plays a substantial role in the gas-phase chemistry of astrochemical environments. To determine the potential effect that it has on the chemical modeling of aromatic molecules, we screened both the kida.uva.2024 network and
Reace H. J. Willis, Thomas H. Speak, Alex N. Byrne, Christopher N. Shingledecker, Ilsa R. Cooke   +4 more
doaj   +1 more source

Observations of interstellar zinc [PDF]

, 1981
The International Ultraviolet Explorer observations of interstellar zinc toward 10 stars are examined. It is found that zinc is at most only slightly depleted in the interstellar medium; its abundance may serve as a tracer of the true metallicity in the ...
York, D., Jura, M.
core  

High-resolution Mid-infrared Spectroscopy of SVS13-A with EXES/SOFIA: The Surprisingly High CH3OH/H2O Ratio in the Planet-forming Zone of a Solar Mass Protostar

The Astrophysical Journal Letters
Water and methanol are key components of interstellar ices and gas in star- and planet-forming regions, but direct observations of water in low-mass protostars are challenging due to atmospheric absorption.
Curtis DeWitt, Marta De Simone, Eleonora Bianchi, Cecilia Ceccarelli, Claudio Codella, Sarah Nickerson, Keeyoon Sung, Albert Rimola, Vittorio Bariosco, Piero Uliengo, Naseem Rangwala   +10 more
doaj   +1 more source

Indirect observation of unobservable interstellar molecules [PDF]

, 1977
It is suggested that the abundances of neutral non-polar interstellar molecules unobservable by radio astronomy can be systematically determined by radio observation of the protonated ions.
Green, S., Thaddeus, P., Klemperer, W., Herbst, E.   +3 more
core  

Interstellar Abundance of the Hydrogen Molecule.

The Astronomical Journal, 1962
Abstract : Contents: Mechanisms for the formulation of molecular hydrogen Dissociative processes for a static interstellar medium Dissociative effects of clouds motions Summary Appendix A: Photodissociation and photoionization Appendix B: Velocity distribution of H I clouds Appendix C: Stromgren spheres Appendix D: Problem in Brownian ...
openaire   +1 more source