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Results 1 to 25 of 621

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Theoretical investigation of the interstellar CH3NC/CH3CN ratioDEFREES, D. J; MCLEAN, A. D; HERBST, E et al.The Astrophysical journal. 1985, Vol 293, Num 1, pp 236-242, issn 0004-637XArticle

The interstellar N/O abundance ratio : Evidence for local infall?'KNAUTH, David C; MEYER, David M; LAUROESCH, James T et al.The Astrophysical journal. 2006, Vol 647, Num 2, issn 0004-637X, L115-L118, 2Article

A reanalysis of the HCO+/HOC+ abundance ratio in dense interstellar cloudsJARROLD, M. F; BOWERS, M. T; DEFREES, D. J et al.The Astrophysical journal. 1986, Vol 303, Num 1, pp 392-400, issn 0004-637X, 1Article

Galactic chronology of thorium/neodymium. RepliesFOWLER, W. A; BUTCHER, H; NOERDLINGER, P. D et al.Nature (London). 1987, Vol 330, Num 6150, pp 703-704, issn 0028-0836Article

Molecular abundance ratios as a tracer of accelerated collapse in regions of high-mass star formationLINTOTT, C. J; VITI, S; RAWLINGS, J. M. C et al.The Astrophysical journal. 2005, Vol 620, Num 2, pp 795-799, issn 0004-637X, 5 p., 1Article

Isotopic composition of solar wind neon measured by CELIAS/MTOF on board SOHOKALLENBACH, R; IPAVICH, F. M; COPLAN, M. A et al.Journal of geophysical research. 1997, Vol 102, Num A12, pp 26895-26904, issn 0148-0227Article

The elemental and isotropic composition of galactic cosmic-ray nuclei from scandium through nickelLESKE, R. A.The Astrophysical journal. 1993, Vol 405, Num 2, pp 567-583, issn 0004-637X, 1Article

The 12C/13C abundance ratio in comet HalleyWYCKOFF, S; LINDHOLM, E; WEHINGER, P. A et al.The Astrophysical journal. 1989, Vol 339, Num 1, pp 488-500, issn 0004-637X, 1Article

The D/H ratio for JupiterSMITH, W. H; SCHEMPP, W. V; BAINES, K. H et al.The Astrophysical journal. 1989, Vol 336, Num 2, pp 967-970, issn 0004-637X, 1Article

Seasonal contributions to the climatic variations recorded in tree ring deuterium/hydrogen dataYAPP, C. J; EPSTEIN, S.JGR. Journal of geophysical research. Part D, Atmospheres. 1985, Vol 90, Num 2, pp 3747-3752Article

The deuterium-to-hydrogen abundance ratio toward the QSO SDSS J155810.16-003120.0O'MEARA, John M; BURLES, Scott; PROCHASKA, Jason X et al.The Astrophysical journal. 2006, Vol 649, Num 2, issn 0004-637X, L61-L65, 2Article

On the measurement of elemental abundance ratios in inner Galaxy H II regionsSIMPSON, Janet P; RUBIN, Robert H; COLGAN, Sean W. J et al.The Astrophysical journal. 2004, Vol 611, Num 1, pp 338-352, issn 0004-637X, 15 p., 1Article

Evidence for anomalous cosmic-ray hydrogenCHRISTIAN, E. R; CUMMINGS, A. C; STONE, E. C et al.The Astrophysical journal. 1988, Vol 334, Num 2, pp L77-L80, issn 0004-637XArticle

Solar wind carbon, nitrogen and oxygen abundances measured in the earth's magnetosheath with AMPTE/CCEGLOECKLER, G; IPAVICH, F. M; HAMILTON, D. C et al.Geophysical research letters. 1986, Vol 13, Num 8, pp 793-796, issn 0094-8276Article

Simple leaky box model for cosmic-ray propagation, models for production of antiprotons at ultrahigh energies and the estimations of the p/p ratiosBHATTACHARYYA, S; PRATIBHA PAL.Nuovo cimento della società italiana di fisica. C. 1986, Vol 9, Num 5, pp 961-983, issn 0390-5551Article

Why did Comet 17P/Holmes burst out? : Nucleus splitting or delayed sublimation?ALTENHOFF, W. J; KREYSA, E; MENTEN, K. M et al.Astronomy and astrophysics (Berlin. Print). 2009, Vol 495, Num 3, pp 975-978, issn 0004-6361, 4 p.Article

Science, marketing and wishful thinking in quantitative proteomicsHACKETT, Murray.Proteomics (Weinheim. Print). 2008, Vol 8, Num 22, pp 4618-4623, issn 1615-9853, 6 p.Article

Anomalous nitrogen isotope ratio in cometsARPIGNY, Claude; JEHIN, Emmanuël; MANFROID, Jean et al.Science (Washington, D.C.). 2003, Vol 301, Num 5639, pp 1522-1524, issn 0036-8075, 3 p.Article

Minor ion composition in the polar ionosphereYAU, A. W; WHALEN, B. A; SAGAWA, E et al.Geophysical research letters. 1991, Vol 18, Num 2, pp 345-348, issn 0094-8276, 4 p.Article

Some comments on the asymptotic limit of antiproton-proton flux ratio at the top of the atmosphereALLKOFER, O. C; BHATTACHARYYA, D. P.Astrophysics and space science. 1987, Vol 132, Num 1, pp 141-146, issn 0004-640XArticle

A NEW UPPER LIMIT TO THE ABUNDANCE RATIO OF ATOMIC DEUTERIUM TO HYDROGEN IN THE DIRECTION OF THE GALACTIC CENTREANANTHARAMAIAH KR; RADHAKRISHNAN V.1979; ASTR. AND ASTROPHYS.; DEU; DA. 1979; VOL. 79; NO 1-2; PP. L9-L11; BIBL. 10 REF.Article

THE 12C/13C ABUNDANCE RATIO DERIVED FROM H2CO OBSERVATIONS OF SOUTHERN SOURCESGARDNER FF; WHITEOAK JB.1979; MONTH. NOT. R. ASTR. SOC.; GBR; DA. 1979; VOL. 188; NO 2; PP. 331-341; BIBL. 30 REF.Article

A DETERMINATION OF THE CARBON AND OXYGEN ISOTOPIC RATIOS IN THE LOCAL INTERSTELLAR MEDIUMWILSON RW; LANGER WD; GOLDSMITH PF et al.1981; ASTROPHYS. J.; ISSN 0004-637X; USA; DA. 1981; VOL. 243; NO 1; PART. 2; PP. L47-L52; BIBL. 10 REF.Article

THE RELATION BETWEEN THE BLANKETING PARAMETER DELTA M1(BETA ) AND (FE/H) ABUNDANCES.CRAWFORD DL; PERRY CL.1976; PUBL. ASTR. SOC. PACIF.; U.S.A.; DA. 1976; VOL. 88; NO 524; PP. 454-455; BIBL. 6 REF.Article

Energetic particle composition measurements from Phobos 2 : results of the LET experimentMARSDEN, R. G; WENZEL, K.-P; AFONIN, V. V et al.Planetary and space science. 1991, Vol 39, Num 1-2, pp 57-66, issn 0032-0633, 10 p.Conference Paper

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