Results 71 to 80 of about 35,607 (205)

Microwave Evidence For Interstellar Molecules [PDF]

Highlights of Astronomy, 1971
Some time ago, optical astronomy was successful in detecting the first molecular species in interstellar space. However, these have been limited to the three diatomic molecules CH, CH+, and CN. Consideration of this list made it rather natural, after the development of microwave astronomy, for some attention to be given to a search for OH, which has a ...
openaire   +1 more source

The Infrared Complex Refractive Index and Band Strengths of Coronene Thin Films

The Astrophysical Journal
Polycyclic aromatic hydrocarbon (PAH) molecules have long been theorized to be present in a multitude of interstellar environments. The radio-frequency detections of specific cyanosubstituted PAH molecules in the Taurus Molecular Cloud have provided new ...
J. E. Roser, L. Jovanović, A. Ricca
doaj   +1 more source

C5H9N Isomers: Pointers to Possible Branched Chain Interstellar Molecules

, 2017
The astronomical observation of isopropyl cyanide further stresses the link between the chemical composition of the ISM and molecular composition of the meteorites in which there is a dominance of branched chain amino acids as compared to the straight ...
Arunan, Elangannan, Das, Ankan, Etim, Emmanuel E., Gorai, Prasanta   +3 more
core   +1 more source

An Ultraviolet Study of CO Chemistry in the Magellanic Clouds

The Astronomical Journal
How does molecular cloud chemistry change with metallicity? In this work, we study the relation between molecular hydrogen (H _2 ) and carbon monoxide (CO) at 1/2 and 1/5 solar metallicity using ultraviolet absorption spectroscopy obtained as part of the
Kirill Tchernyshyov, Jessica K. Werk, Julia Roman-Duval   +2 more
doaj   +1 more source

Perspective from a Younger Generation -- The Astro-Spectroscopy of Gisbert Winnewisser

, 1997
Gisbert Winnewisser's astronomical career was practically coextensive with the whole development of molecular radio astronomy. Here I would like to pick out a few of his many contributions, which I, personally, find particularly interesting and put them ...
A McKellar, A Nummelin, A Nummelin, A Remijan, A Schulz, A Wootten, AC Cheung, AC Cheung, AE Douglas, AH Saleck, AH Saleck, B Hoglund, B Zuckerman, BE Turner, BE Turner, BE Turner, C Ceccarelli, CA Gottlieb, CM Walmsley, D Buhl, DA Neufeld, DA Neufeld, DM Mehringer, DM Mehringer, E Churchwell, E Churchwell, E Churchwell, EF Dishoeck van, ET Polehampton, F Bensch, F Combes, F Combes, F Sato, FF Gardner, FF Gardner, FF Gardner, FH Shu, G Dahmen, G Winnewisser, G Winnewisser, G Winnewisser, GA Blake, GJ Melnick, H Spinrad, HI Ewen, HM Pickett, HSP Muüller, II Berulis, IS Shklovsky, J Cernicharo, J Stutzki, J Stutzki, J Stutzki, J Stutzki, J Stutzki, JA Ball, JL Highberger, JL Highberger, JM Hollis, JM Hollis, JM Hollis, JM MacLeod, JN Chengalur, JR Goicoechea, JR Pardo, K Kawaguchi, LE Snyder, LE Snyder, LE Snyder, LE Snyder, LE Snyder, LE Snyder, LM Ziurys, LM Ziurys, LW Avery, LW Avery, M Guélin, M Klumb, M Morris, M Morris, MB Bell, MR Hunt, MWFNRJCRBJBRD Sinclair, N Fourikis, N Kaifu, NW Broten, NZ Scoville, OEH Rydbeck, OEH Rydbeck, P Ehrenfreund, P Palmer, P Schilke, P Swings, PDBRDRBJ Godfrey, PF Goldsmith, PFL Goldsmith, R Bachiller, R Schieder, R Stark, RD Brown, RH Rubin, RL Plambeck, RW Wilson, S Liu, S Petrie, S Saito, S Weinreb, S Yamamoto, SE Cummins, T Dunham, TG Phillips, TR Geballe, UU Graf, UU Graf, WG Roberge, Y Kuan, Y Kuan, Y Miao, YS Miao   +118 more
core   +1 more source

Spectroscopic Investigation of Thioacrolein by Variational and Perturbational Approaches

Journal of Computational Chemistry, Volume 47, Issue 10, 15 April 2026.
The vibrational and rotational spectra of trans and cis‐thioacrolein were studied by high levels of electronic and vibrational structure theory. Comparisons with experimental results are provided for several molecular quantities. ABSTRACT The vibrational spectra of trans and cis‐thioacrolein have been studied by 2nd order vibrational perturbation ...
Guntram Rauhut
wiley   +1 more source

Linear/circular spectropolarimetry of diffuse interstellar bands

, 2011
Context. The identification of the carriers of diffuse interstellar bands (DIBs) remains one of the long-standing mysteries in astronomy. The detection of a polarisation signal in a DIB profile can be used to distinguish between a dust or gas-phase ...
Adamson, Adamson, Adamson, Aitken, B. H. Foing, Ballester, Cami, Cami, Cardelli, Chiar, Clayton, Clayton, Clayton, Cordiner, Cordiner, Cox, Cox, Cox, Cox, Cox, Coyne, Dobashi, Donati, Ehrenfreund, Ehrenfreund, F. Salama, Fitzpatrick, Fitzpatrick, Gordon, Gyul’Budagyan, Herbig, Hobbs, Hobbs, Hough, Jenniskens, Kim, L. d’Hendecourt, Lazarian, Marques, Martin, McCall, McCall, Merrill, Munari, N. L. J. Cox, O’Donnell, P. Ehrenfreund, P. J. Sarre, Rouan, Ruiterkamp, Salama, Sarre, Sarre, Serkowski, Serkowski, Sironi, Smith, Sollerman, Somerville, Somerville, Spaans, Tielens, Tolkachev, Tolkachev, Trumpler, Tuairisg, Underhill, Valencic, Voshchinnikov, Wallerstein, Wegner, Whittet, Wolff, Wolff   +73 more
core   +1 more source

Science of omics: a molecular space odyssey

Experimental Physiology, EarlyView.
Salomé Coppens, Christophe Hirtz, Margaux Vignon, Damian M. Bailey   +3 more
wiley   +1 more source

Considerations Regarding Cometary and Interstellar Molecules. [PDF]

The Astrophysical Journal, 1942
The visual continua in the spectra of three nebulae photographed with a narrow slit are not produced by the blending of atomic emission lines but must have a physical origin. Several strong He I emission lines just beyond the Balmer limit may tend to vitiate measurements of the intensity distribution in the Balmer continuum on plates taken with a wide ...
openaire   +2 more sources

Determining the Methanol Deuteration in the Disk Around V883 Orionis with Laboratory Measured Spectroscopy

The Astronomical Journal
Deuterium fractionation, as studied through mono-deuterated methanol, is frequently used as a diagnostic tool to trace the physical conditions and chemical evolution of interstellar sources. This study investigates methanol deuteration in the disk around
Shaoshan Zeng, Jae-Hong Jeong, Takahiro Oyama, Jeong-Eun Lee, Yao-Lun Yang, Nami Sakai   +5 more
doaj   +1 more source