1. SOME ASPECTS OF GISBERT’S CAREER Eric Herbst The Ohio State University

2. Curriculum Vitae 1936 Birth (Karlsruhe, Germany) 1967 Ph. D. (Duke Univ., spectrum of HSSH) 1967-68 Postdoc, Duke Univ. 1968-70 Postdoc, NRC (with Costain/Oka) 1970-71 Asst. Prof., Univ. Brit. Columbia 1971-72 Visiting Scientist, NRC 1972-79 Astronomer, MPIfR 1979- Chair in Physics, Univ. of Koeln Honors: Max-Planck Research Prize; Phillip Morris Prize; Marci-Medal; Historic Medal of Charles University

3. I. Physikalisches Institut, Koeln Size: 100 people (students, researchers, machinists, etc.) PhD’s granted: 100 Yearly funds: 8 000 000 euros Construction of astronomical hardware for a variety of telescopes in-house (KOSMA, SWAS, HIFI, SOFIA)

4. SOME CAREER HIGHLIGHTS ASTRONOMY 1) New species & isotopes 2) Maps & physical conditions (e.g. CI & CO) 3) Cologne telescope 4) Development (e.g. AOS’s) SPECTROSCOPY 1) mm/submm studies including intracavity work 2) THz studies 3) IR studies 4) Database

5. SOME SPECTROSCOPIC EQUIPMENT THz spectrometers (BWO sources up to 3 THz, sideband source 1.6-2.1 THz; used for study of rotation, torsion, bending vibrations of radicals and normal species) OROTRON intracavity mm-wave spectrometer; up to 400 GHz; 3 orders of magnitude enhancement in sensitivity (van der Waals species, etc) ---------------------------------------------------- frequency-stabilized ring laser for IR work

6. The Russian Connection BWO’s supplied by ISTOK Research and Production Company (Fryazino, Moscow Region) Tunable millimeter-wave synthesizers supplied by Institute of Electronic Measurement, KVARZ, Nizhnii Novgorod Orotron – Russian Academy of Sciences

7. HSSH AND BRETHREN HSSHHSOHHOOH

8. And another look….. The middle species, HSOH, took many years to learn how to produce! Winnewisser et al. (2003)

9. HSSH (disulfane) G. Winnewisser, PhD thesis (1967) c-type transitions

10. Some Unusual Aspects of HSSH Nearly perfect accidental symmetric top Ortho-para structure Internal rotation over 4  radians

11. Rotational-Torsional Levels 2037 cm 2843 cm

12. Note: ortho-para intensity variation!

13. HSOH r Q 0 -BRANCH (2003) Winnewisser et al. (2003)

14. trans-Ethyl Methyl Ether U. Fuchs et al. (2003)

15. Rotational Spectra of Radicals Some examples of recent years: CH 2 NH NH 2 PH PS CP CF CN Plus the ion HCS + through 1 THz

16. interstellar

17. CH 2 Michael et al. (2003)

18. Low Frequency Bending of C 3 Sideband spectrometer Also infrared studies – see G. Fuchs (2003)

19. Giesen et al. (2001) KAO Confirmed by ISO

20. NEW INTERSTELLAR MOLECULES HNC **(lab;1976) Vinyl cyanide (1975; Sgr B2) Formic acid HCOOH (1975; Sgr B2) CH 3 CCCCH (1984: TMC-1) NH 2 D (1985; 3 clouds) Three 13C isotopomers of HCCCN (1975,1977; Sgr B2,fractionation),

22. TMC-1 In 1978, Churchwell, Winnewisser, and Walmsley put TMC-1 on the map (despite thunderstorm; pointing errors) “Molecular Observations of a Possible Proto-Solar Nebula in a Dark Cloud in Taurus” In the following, we will refer to this small cloud as the Taurus Molecular Cloud 1, or TMC1…….

24. TMC-1 CP

25. Kölner Observatorium für Submm-Astronomie

26. HISTORY OF KOSMA 1984 KOSMA 3-m first light 1985 move to Gornergrat 1995 new dish and mount

28. SELECTED KOSMA CO and CI STUDIES 2003: Virgo cluster spiral galaxies 2002: CI emission from star-forming regions (1-0 & 2-1) 2000: Cepheus B cloud 2000: high latitude cloud MBM 32 2000: galactic 5kpc ring 1998: Rosette molecular complex 1998: Comet Hyakutake 1991: fragmentation in California nebulae 1991: L1495 survey 1990: nearest cloud (L1457): fragmentation

29. Latest CO and C I Studies (The New Generation) New array receiver: 2 X 4 pixel 490/810 GHz (SMART) (Graf et al.) C I: ability to study 1-0 (492 GHz) and 2-1 (809 GHz) fine-structure lines simultaneously CO J=7-6

31. Non-Kosma C I studies Heinrich-Hertz telescope: 1997 –Study of starburst galaxy M82 using 1-0 and 2- 1 simultaneously Antarctic Submillimeter Telescope & Remote Observatory: 1997 –Study of cold, low density clouds towards the galactic center broad-line emission

32. Some Recent Observations Excited HCN in the protoplanetary nebula CRL 618 (2003) with MPIfR (Bonn); deduction of physical conditions Unusual isomers of CO in Rho Ophiuchi (e.g. 13 C 17 O) based on precise laboratory data (2001-2003) SWAS

33. PRESENT & FUTURE WORK SPECTROSCOPY –IR studies of carbon clusters (C 8 ) –Mm-wave studies of van der Waals species –Free radicals at THz frequencies (CH 2 ) –Molecular ions ASTRONOMY –SOFIA & HERSCHEL (HIFI) –Database for THz astronomy (CDMS)

34. DEAR GISBERT, Best wishes for the future, and thank you for all of the happy and exciting times we have spent and will continue to spend together.