Prof. em. Dr. Arnold Benz

Prof. em. Dr.  Arnold Benz

Address

ETH Zürich

Dep. of Physics

Prof. em. Dr. Arnold Benz

Inst. f. Teilchen- und Astrophysik

HIT J 31.3

Wolfgang-Pauli-Str. 27

8093 Zürich

Switzerland

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Additional information

Research area

Star and planet formation, heliophysics, plasma astrophysics, dialogue science-religion

Curriculum Vitae

Arnold Benz was head of the Group for Radioastronomy and Plasma Astrophysics at the Institute forAstronomy at the ETH Zurich, Switzerland, from 1974 until 2010 and was given the title of Professor at ETH Zurich in 1993. He was teaching plasma astrophysics, high-energy astrophysics, and the physics of star and planet formation.

Arnold Benz is a citizen of Winterthur (Switzerland) where he was born on April 21, 1945. He studied mathematics and physics at the Swiss Federal Institute of Technology (ETH) and received his Diploma degree in theoretical physics. Subsequently, he transferred to Cornell University, Ithaca, NY, where he completed his doctoral dissertation in astrophysics under the guidance of Prof. Thomas Gold. On October 1, 1972, he joined the ETH, first working at the Swiss Federal Observatory, later at the Microwave Laboratory, then at the Institute for Astronomy.

His research activities concentrate on dynamic processes in star and planet formation. He has studied the outer atmospheres of the sun and stars, the heating of coronae, and the acceleration of particles to high energies. Furthermore, he has worked on problems in supernovae, gamma-ray bursts and dwarf novae. He was Principal Investigator of the X-ray telescope STIX on Solar Orbiter of ESA to be launched in January 2019 and lead Co-Investigator for the Herschel Space Observatory (ESA). He also uses observations of the ETH radiospectrometers in Bleien as well as international radio telescopes such as VLBA, EVN, Arecibo, VLA, Effelsberg, ALMA) and X-ray satellites (SOHO, Yohkoh, ROSAT, ASCA, SMM, RHESSI).

He was president of Division II (Sun and Heliosphere) of the International Astronomical Union (IAU), president of the Swiss Society for Astrophysics and Astronomy (SSAA), and president of the Community of the European Solar Radioastronomers (CESRA).

Honours

Year Distinction
2017 Honorary doctorate of the University of the South, Sewanee, TN, USA, in science
2011 Honorary doctorate of the University of Zurich, faculty of theology
Enlarged view: benz.jpg

 

Research Activities

Present research focuses on star and planet formation using data of the Herschel Space Observatory and on high-energy diagnostics of solar flares. The latter is connected to the involvement as a Senior Advisor in the STIX project on Solar Orbiter at the FHNW in Windisch.

 

Short CV

Arnold Benz studied physics at ETH Zurich. He did his Ph.D. at Cornell University, NY, USA with Thomas Gold on the acceleration of the solar wind. He moved back to ETH in 1972 and, starting in 1974, he led the group for radio astronomy and plasma physics. He was appointed professor in 1993. His achievements include the first detailed survey and interpretation of solar flare radio emissions in decimeter radio waves, theory for particle acceleration in flares, and the relation of thermal X-ray and non-thermal X-ray emissions of solar and stellar activity. His interdisciplinary work on science and religion was awarded by an honorary doctor of the University of Zurich.

He was president of Division II (Sun and Heliosphere) of the International Astronomical Union, president of Commission 10 (Solar Activity) of the IAU, president of the Swiss Society for Astrophysics and Astronomy, and a member of several more national and international committees.

After his retirement in 2010 he remained a member of the Institute for Astronomy and continues his research. The focus includes also the dialogue with theologians on science and religion. The question is how to assimilate a worldview dominated by science into theological concepts of reality (external pagemore).

 

Publications

The publication list is under construction.

 

A Selection of Recent Research Articles

  • WISH VI. Constraints on UV and X-ray irradiation from a survey of hydrides in low to high-mass YSOs
    Benz, A. O.; Bruderer, S; van Dishoeck, E.F.; Melchior, M. and 18 coauthors
    Astronomy and Astrophysics, 590, A 105 (2016) (external pagepdf)
  • Herschel Survey of Galactic OH+, H2O+, and H3O+: Probing the Molecular Hydrogen Fraction and Cosmic-Ray Ionization Rate
    Indriolo, Nick; Neufeld, D. A.; Gerin, M.; Schilke, P.; Benz, A. O.; and 17 coauthors
    2015 Astrophysical Journal...800...40I (external pagepdf)
  • Short-duration Radio Bursts with Apparent Extragalactic Dispersion
    Saint-Hilaire, P.; Benz, A. O.; Monstein, C.
    2014 Astrophysical Journal...795...19S (external pagepdf)
  • Neutral and Ionized Hydrides in Star-forming Regions – Observations with Herschel/HIFI
    A. O. Benz, S. Bruderer, E. F. van Dishoeck,. Pascal Stäuber, and S. F. Wampfler
    Journal Chemical Physics A, 117, 9840-9847
    (2013). (external pagepdf)
  • The spectrometer telescope for imaging x-rays on board the Solar Orbiter mission
    Benz, A. O.; Krucker, S.; Hurford, G. J.; Arnold, N. G.; Orleanski, P.; Gröbelbauer, H.-P.; Klober, S.; Iseli, L.; Wiehl, H. J.; Csillaghy, A.; and 50 coauthors
    2012 SPIE.8443E..3LB (external pagepdf)
  • Tracing FUV Radiation in the Embedded Phase of Star Formation
    Benz, A.O., Bruderer, S., van Dishoeck, E.F., Stäuber,P., Wampfler, S.F. Dedes, C.
    EAS Publications Series, 5th Zermatt conference on conditions and impact of star formation: New results with Herschel and beyond, 52, 239-244 (2011)
    The external pagepdf file of the article is available.
  • The Location of Decimetric Pulsations in Solar Flares
    A.O. Benz, M. Battaglia and N. Vilmer
    Solar Physics 273, 363 - 375 (2011)
    The external pagepdf file and the ps file of the article are available.
  • Water in Star-Forming Regions with the Herschel Space Observatory (WISH): Overview of key program and first results
    van Dishoeck, E.F., Kristensen, L.E., Benz, A.O., and 14 coauthors
    PASP ,123, issue 900, pp.138-170 (2011)
    The external pagepdf file of the article is available.
  • The Radio/X-ray Relation in Cool Stars: Are we headed toward a divorce?
    J. Forbrich, S.J. Wolk, M. Guedel, A.O. Benz, R. Osten, J.L. Linsky, M. McLean, L. Loinard, and E. Berger
    ASP Conference Series , 448, 455-467 (2011)
    The external pagepdf file of the article is available.
  • Multidimensional Chemical Modelling of Young Stellar Objects -- III. Abundance and excitation of diatomic hydrides
    S. Bruderer, A.O. Benz, P. Stäuber, and D. Doty
    The Astrophysical Journal 720, 1432 - 1453 (2010)
    The external pagepdf file of the article is available.
  • Hydrides in Young Stellar Objects: Radiation tracers in a protostar-disk-outflow system
    A.O. Benz, S. Bruderer, E.F. van Dishoeck et al.
    Astronomy and Astrophysics Letters 521, L35 (2010)
    The external pagepdf file of the article is available.
  • Physical Processes in Magnetically-Driven Flares on the Sun, Stars, and Young Stellar Objects
    A. O. Benz and M. Güdel
    Annual Review Astronomy Astrophysics 48 241 -- 287 (2010)
    The external pagepdf file of the article is available.
  • High Spectral Resolution Observation of Decimetric Radio Spikes Emitted by Solar Flares -- First Results of the Phoenix-3 Spectrometer
    A. O. Benz, C. Monstein, M. Beverland, H. Meyer, and B. Stuber
    Solar Physics 260 375-388 (2009)
    The external pagepdf file and the postscript file of the article are available.
  • Radio bursts of the non-thermal sun
    A. O. Benz
    Landolt-Boernstein LB VI/4B 4.1.2.8 (2009)
    The external pagepdf file and ps file of the article are available.
  • Quiet and slowly varying radio emissions of the sun
    A. O. Benz
    Landolt-Boernstein LB VI/4B 4.1.1.6 (2009)
    The external pagepdf file and the ps file of the article are available.
  • A World-wide Net of Solar Radio Spectrometers -- e-CALLISTO
    A.O. Benz, C. Monstein, H. Meyer, P. K. Manoharan, R. Ramesh, A. Altyntsev, A. Lara, J. Paez, and K.-S. Cho
    Earth, Moon, and Planets 104, 277 - 285 (2009)
    The external pagepdf file of the article is available.
  • Energetic radiation on the sulfur chemistry of protostellar envelopes: Submillimeter interferometry of AFGL 2591
    A. O. Benz, P. Stäuber, T.L. Bourke, F.F.S. van der Tak, E.F. van Dishoeck, and J. Joergensen
    Astronomy and Astrophysics 475, 549 - 558 (2007)
    The external pagepdf file of the article is available.
  • Particle acceleration in solar flares: observations versus numerical simulations
    Arnold O. Benz, Paolo C. Grigis and Marina Battaglia
    Plasma Physics and Controlled Fusion 48, B115 - B121 (2006)
    The external pagepdf file of the article are available.
  • Flare Observations
    A.O. Benz
    Living Reviews in Solar Physics 5, no.1 (2008)
    The external pagehtml version and the external pagepdf file of the article are available.
  • A broadband FFT spectrometer for radio and millimeter astronomy
    A.O. Benz, P.C. Grigis, V. Hungerbühler, H. Meyer, C. Monstein, B. Stuber, and D. Zardet
    Astronomy and Astrophysics 442, 767 - 773 (2005)
    The external pagepdf file of the article is available.
  • Radio Emission of Solar Flare Particle Acceleration
    Arnold O. Benz
    Sixth International Workshop on Planetary and Solar Radio Emissions Graz, April 20 - 22, 2005, (eds. H.O. Rucker, W.S. Kurth, G. Mann), 325 - 338 (2006)
    The external pagepdf file and ps file of the article are available.  
  • CALLISTO - A new concept for solar radio spectrometers
    Arnold O. Benz, Christian Monstein, and Hansueli Meyer
    Solar Physics 226, 143 - 151 (2005)
    The external pagepdf file and the postscript file of the article are available.
  • Survey on solar X-ray flares and associated coherent radio emissions
    Arnold O. Benz, Paolo C. Grigis, Andre Csillaghy and Pascal Saint-Hilaire
    Solar Physics 226, 121 - 142 (2005)
    The external pagepdf file and postscript file of the article are available.

 

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