Research Articles prior to 1997
(Thaddeus group)

1996

• LABORATORY DETECTION OF THE C₇H RADICAL. M. J. Travers, M. C. McCarthy, C. A. Gottlieb, and P. Thaddeus. Astrophysical Journal 465, L77-L80 (1996)
• LABORATORY DETECTION OF THE C₈H RADICAL. M. C. McCarthy, M. J. Travers, A. Kovacs, C. A. Gottlieb, and P. Thaddeus. Astronomy and Astrophysics 309, L31-L33 (1996)
• LABORATORY DETECTION OF THE C₉H RADICAL. M. C. McCarthy, M. J. Travers, P. Kalmus, C. A. Gottlieb, and P. Thaddeus. Astrophysical Journal 467, L125-L127 (1996)
• LABORATORY MEASUREMENT OF THE HYPERFINE STRUCTURE OF HCCCO. Wei Chen, Stewart E. Novick, M. C. McCarthy, M. J. Travers, A. L. Cooksy and P. Thaddeus. Astrophysical Journal 462, 561-562 (1996)
• STRUCTURE OF THE CUMULENE CARBENE BUTRIENYLIDENE: H₂CCCC. M. J. Travers, Wei Chen, Stewart E. Novick, J. M. Vrtilek, C. A. Gottlieb, and P. Thaddeus. Journal of Molecular Spectroscopy 180, 75-80 (1996)
• LABORATORY DETECTION OF THE LINEAR CYANOPOLYYNE HC₁₁N. M. J. Travers, M. C. McCarthy, P. Kalmus, C. A. Gottlieb, and P. Thaddeus. Astrophysical Journal 469, L65-L68 (1996)
• LABORATORY DETECTION OF THE CYANOPOLYYNE HC₁₃N. M. J. Travers, M. C. McCarthy, P. Kalmus, C. A. Gottlieb, and P. Thaddeus. Astrophysical Journal 472, L61-L62 (1996)

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1995

• ROTATIONAL SPECTRUM AND HYPERFINE STRUCTURE OF ¹³CCH and C¹³CH. M. C. McCarthy, C. A. Gottlieb, and P. Thaddeus. Journal of Molecular Spectroscopy 173, 303-307 (1995)
• EVIDENCE FOR NONRIGID HCCN. M. C. McCarthy, C. A. Gottlieb, A. L. Cooksy, and P. Thaddeus. Journal of Chemical Physics 103, 7779 (1995)
• STRUCTURE OF THE CCCN AND CCCCH RADICALS: ISOTOPIC SUBSTITUTION AND ab initio THEORY. M. C. McCarthy, C. A. Gottlieb, P. Thaddeus, M. Horn, and P. Botschwina. Journal of Chemical Physics 103, 7820 (1995)
• CARBON-13 HYPERFINE STRUCTURE OF THE CCCCH RADICAL. Wei Chen, Stewart E. Novick, M. C. McCarthy, C. A. Gottlieb, and P. Thaddeus. Journal of Chemical Physics 103, 7828 (1995)
• STRUCTURES, ELECTRONIC PROPERTIES, AND ISOMERIZATION OF THE HCCCO RADICAL. A. L. Cooksy, F.-M. Tao, W. Klemperer, and P. Thaddeus. Journal of Physical Chemistry 99, 11095 (1995)

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1994

• AN ab initio STUDY OF THE HNCN RADICAL. F.-M. Tao, W. Klemperer, M. C. McCarthy, C. A. Gottlieb, and P. Thaddeus. Journal of Chemical Physics 100, 3691-3694 (1994)
• THE STRUCTURE OF THE HCCCO RADICAL. ROTATIONAL SPECTRA AND HYPERFINE STRUCTURE OF MONOSUBSTITUTED ISOTOPOMERS. A. L. Cooksy, J. K. G. Watson, C. A. Gottlieb, and P. Thaddeus. Journal of Chemical Physics 101, 178-186 (1994)
• A MILLIMETER-WAVE STUDY AND ASTRONOMICAL SEARCH FOR THE HCCCS RADICAL. M. C. McCarthy, J. M. Vrtilek, E. W. Gottlieb, F.-M. Tao, C. A. Gottlieb, and P. Thaddeus. Astrophysical Journal 431, L127-L130 (1994)

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1993

• MILLIMETER-WAVE SPECTRUM OF VIBRATIONALLY EXCITED CYCLOPROPENYLIDENE c-C₃H₂. R. Mollaaghababa, C.A. Gottlieb, J. M. Vrtilek, and P. Thaddeus. Journal of Chemical Physics 99, 890-896 (1993)
• FREE CARBENES IN THE INTERSTELLAR GAS. Patrick Thaddeus, Carl A. Gottlieb, Reza Mollaaghababa and Jan M. Vrtilek. Journal of the Chemical Society Faraday Transactions 89, 2125-2129 (1993)
• STRUCTURE OF PROPADIENYLIDENE, H₂CCC. C. A. Gottlieb, T. C. Killian, P. Thaddeus, P. Botschwina, J. Flugge, and M. Oswald. Journal of Chemical Physics 98, 4478-4485 (1993)
• HYPERFINE STRUCTURE OF THE SiC RADICAL. R. Mollaaghababa, C. A. Gottlieb, and P. Thaddeus. Journal of Chemical Physics 98, 968-973 (1993)

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1992

• LABORATORY MEASUREMENT OF THE ROTATIONAL SPECTRUM OF HCCS. J. M. Vrtilek, C. A. Gottlieb, E. W. Gottlieb, W. Wang, and P. Thaddeus. Astrophysical Journal Letters 398, L73-L76 (1992)
• THE ROTATIONAL SPECTRUM OF THE CARBON CHAIN RADICAL HCCCO. A. L. Cooksy, J. K. G. Watson, C. A. Gottlieb, and P. Thaddeus. Astrophysical Journal Letters 386, L27-L30 (1992)
• MILLIMETER-WAVE SPECTRA OF THE HCCCO AND DCCCO RADICALS. A. L. Cooksy, J. K. G. Watson, C. A. Gottlieb, and P. Thaddeus. Journal of Molecular Spectroscopy 153, 610-626 (1992)

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1991

• ASTRONOMICAL DETECTION OF H₂CCC. J. Cernicharo, C. A. Gottlieb, M. Guelin, T. C. Killian, G. Paubert, P. Thaddeus, and J. M. Vrtilek. Astrophysical Journal Letters 398, L39-L41 (1991)
• MILLIMETER-WAVE SPECTRUM OF HIGHLY VIBRATIONALLY EXCITED SiO. R. Mollaaghababa, C. A. Gottlieb, J. M. Vrtilek and P. Thaddeus. Astrophysical Journal Letters 368, L19-L22 (1991)
• ASTRONOMICAL DETECTION OF H₂CCCC. J. Cernicharo, C. A. Gottlieb, M. Guelin, T. C. Killian, P. Thaddeus, and J. M. Vrtilek. Astrophysical Journal Letters 368, L43-L45 (1991)
• OBSERVATIONS OF CUMULENE CARBENES, H₂CCCC AND H₂CCC, in TMC-1. Kentarou Kawaguchi, Norio Kaifu, Masatoshi Ohishi, Shin-ichi Ishikawa, Yasuhiro Hirahara, Satoshi Yamamoto, Shuji Saito, Shuro Takano, Akinori Murakami, J. M. Vrtilek, Carl A. Gottlieb, Patrick Thaddeus, and William M. Irvine. Publications of the Astronomical Society of Japan 43, 607-619 (1991)

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1990

• LABORATORY DETECTION OF PROPADIENYLIDENE, H₂CCC. J. M. Vrtilek, C. A. Gottlieb, E. W. Gottlieb, T. C. Killian, and P. Thaddeus. Astrophysical Journal Letters 364, L53-L56 (1990)
• LABORATORY DETECTION OF A SECOND CARBON CHAIN CARBENE: BUTATRIENYLIDENE, H₂CCCC. T. C. Killian, J. M. Vrtilek, C. A. Gottlieb, E. W. Gottlieb, and P. Thaddeus. Astrophysical Journal Letters 365, L89-L92 (1990)
• ROTATIONAL SPECTRA OF CARBON 13 AND VIBRATIONALLY EXCITED SiC. R. Mollaaghababa, C. A. Gottlieb, J. M. Vrtilek, and P. Thaddeus. Astrophysical Journal Letters 352, L21-L23 (1990)

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1989

• ASTRONOMICAL AND LABORATORY DETECTION OF THE SiC RADICAL. J. Cernicharo, C. A. Gottlieb, M. Guelin, P. Thaddeus, and J. M. Vrtilek. Astrophysical Journal Letters 341, L25-L28 (1989)
• LABORATORY MEASUREMENT OF THE ROTATIONAL SPECTRUM OF SiCC. C. A. Gottlieb, J. M. Vrtilek, and P. Thaddeus. Astrophysical Journal Letters 343, L29-L32 (1989)

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1988

• LABORATORY DETECTION OF THE C₆H RADICAL. J. C. Pearson, C. A. Gottlieb, D. R. Woodward, and P. Thaddeus. Astronomy and Astrophysics 189, L13-L15 (1988)
• THE RADIO SPECTRUM OF THE C₄D RADICAL. D. R. Woodward, J. C. Pearson, C. A. Gottlieb,and P. Thaddeus. Astrophysical Journal Letters 333, L29-L31 (1988)

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1987

• THE RADIO SPECTRUM OF CYCLOPROPENE. J. M. Vrtilek, C. A. Gottlieb, T. J. LePage, and P. Thaddeus. Astrophysical Journal 316, 826-829 (1987)
• LABORATORY STUDY OF THE ROTATIONAL SPECTRUM OF VIBRATIONALLY EXCITED C₂H. D. R. Woodward, J. C. Pearson, C. A. Gottlieb, M. Guelin, and P. Thaddeus. Astronomy and Astrophysics 186, L14-L16 (1987)
• LABORATORY AND ASTRONOMICAL SPECTROSCOPY OF C₃H₂, THE FIRST INTERSTELLAR ORGANIC RING. J. M. Vrtilek, C. A. Gottlieb, and P. Thaddeus. Astrophysical Journal 314, 716-725 (1987)
• NEW DOUBLETS IN IRC+ 10216: VIBRATIONALLY EXCITED C₄H?. M. Guélin, J. Cernicharo, S. Navarro, D. R. Woodward, C. A. Gottlieb,and P. Thaddeus. Astronomy and Astrophysics 182, L37-L39 (1987)

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1986

• LABORATORY DETECTION OF THE C₅H RADICAL. C. A. Gottlieb, E. W. Gottlieb, and P. Thaddeus. Astronomy and Astrophysics 164, L5-L6 (1986)
• THE ROTATIONAL SPECTRUM OF THE C₃H RADICAL. C. A. Gottlieb, E. W. Gottlieb, P. Thaddeus, and J. M. Vrtilek. Astrophysical Journal 303, 446-450 (1986)

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1985

• LABORATORY DETECTION OF THE C₃H RADICAL. C. A. Gottlieb, J. M. Vrtilek, E. W. Gottlieb, P. Thaddeus, and A. Hjalmarson. Astrophysical Journal 294, L55-L58 (1985)
• ASTRONOMICAL IDENTIFICATION OF THE C₃H RADICAL. P. Thaddeus, C. A. Gottlieb, A. Hjalmarson, L. E. B. Johansson, W. M. Irvine, P. Friberg, and R. A. Linke. Astrophysical Journal 294, L49- L53 (1985)
• LABORATORY AND ASTRONOMICAL DETECTION OF THE DEUTERATED ETHYNYL RADICAL CCD. J. M. Vrtilek, C. A. Gottlieb, W. D. Langer, P. Thaddeus, and R. W. Wilson. Astrophysical Journal 296, L35- L38 (1985)
• LABORATORY AND ASTRONOMICAL IDENTIFICATION OF CYCLOPROPENYLIDENE, C₃H₂. P. Thaddeus, J. M. Vrtilek, and C. A. Gottlieb. Astrophysical Journal 299, L63-L66 (1985)

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1983

• LABORATORY DETECTION OF THE C₃N AND C₄H FREE RADICALS. C. A. Gottlieb, E. W. Gottlieb, P. Thaddeus, and H. Kawamura. Astrophysical Journal 275, 916-921 (1983)
• LABORATORY AND ASTRONOMICAL MEASUREMENT OF THE MILLIMETER-WAVE SPECTRUM OF THE ETHYNYL RADICAL CCH. C. A. Gottlieb, E. W. Gottlieb, and P. Thaddeus. Astrophysical Journal 264, 740-745 (1983)

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