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Curriculum Vitae

Current position

Senior Data Scientist at Grundfos AS
2018 - present

 

Employed as a Senior Data Scientist at Grundfos A/S in the Digital Development and Innovation department. The main focus of my position is driving increased utilization of data within our manufacturing to optimize our production processes. This includes planning and leading advanced analytics projects, as well as executing these myself.

I am also involved in activities on the more strategic level, related to the Industry 4.0 transformation, as seen from a data analytics perspective, including various change management and process activities.

Education

 

Heidelberg University

​2012 - 2015

 

​PhD student in astronomy at the Landessternwarte, Heidelberg University. Supervised by Prof. Dr. Norbert Christlieb and Dr. Luca Sbordone. My thesis work was focussed on deriving accurate elemental abundances and isotopes of magnesium in giant stars in the globular cluster 47 Tucanae as well as in the Milky Way Bulge and Inner Disk.

 

Aarhus University

​2009 - 2012

 

Masters student in astronomy at Aarhus University, supervised by Prof. Søren Frandsen. My thesis was titled "Fundamental parameters of a sample of red giants in the Kepler field" and was aimed at deriving abundances and parameters for a large number of asteroseismic targets, observed by the NASA Kepler satellite

 

Aarhus University

​2006 - 2009

 

Bachelor student in physics. Thesis supervised by Dr. Frank Grundal. It was titled "An investigation of the eclipsing binary V3785 in NGC7789".

Skills

UNIX

OS X

WINDOWS

MOOG

IRAF

ATLAS12

SYNTHE

CO5BOLD

LINFOR3D

LaTex

Programming Languages

IDL

Python

UNIX scripting

 

Spoken Languages

Danish (Mothertongue)

English (fluent)

German (intermediate)

Spanish (basic)

 

Work
experience
Postdoctoral researcher at Caltech
2015 - 2017

 

Employed at California Institute of Technology in the group of Prof. Evan Kirby.

My research is focussed on a holistic investigation of isotopic abundances of several elements, like Mg, Ba and C, in different stellar populations. This will be achieved using high-resolution, high signal-to-noise spectra from the worlds' largest telescopes, like Keck and the VLT. 

In addition I am computing 3D stellar atmospheric models in an effort to expand the current Co5bold grid of models to also include a large number of red giants. 

​

Student Support Astronomer

​2010 - 2011

 

​Employed as a student support astronomer at the 2.5m Nordic Optical Telescope on La Palma, Canary Islands, Spain. The work included performing service observations using the optical echelle spectrograph FIES and the optical imager/long slit spectrograph ALFOSC. The job also included regular support astronomer duties, where I introduced visiting astronomers to the instrument of their observing run, as well as helping troubleshoot throughout their scheduled time.

 

Show Physicist

​2008 - 2012

 

​Employed as a show physicist by Fysikshow Aarhus (in Danish). Physics outreach to young people aged 14-19, with a strong focus on the students' understanding rather than just entertaining them. A typical working day would be visiting a school, do 2-3 shows of 1h duration, for different classes. The shows aimed at illustrating how fascinating physics can actually be. Check out our youtube channel for examples of experiments.

 

Observing Experience

​2009 - 2017

 

  • Keck Telescopes, Hawaii, USA: 3 nights

  • ​ESO Very Large Telescope, Paranal, Chile: 6 nights

  • Nordic Optical Telescope, La Palma, Spain: 57 nights

  • IAC80cm, Tenerife, Spain: 6 nights

  • Isaac Newton Telescope, La Palma, Spain: 1 night

Refereed
Publications

An Investigation of the Formation and Line Properties of MgH in 3D Hydrodynamical Model Stellar Atmospheres

Thygesen, A. O.; Kirby, E. N.; Gallagher, A. J.; Ludwig, H.-G.; Caffau, E.; Bonifacio, P.; Sbordone, L., 2017, ApJ, 843, 144.

​

The [Y/Mg] clock works for evolved solar metallicity stars

Slumstrup, D.; Grundahl, F.; Brogaard, K.; Thygesen, A. O.; Nissen, P. E.; Jessen-Hansen, J.; Van Eylen, V.; Pedersen, M. G., 2017, A&A, 604, 8.

​

The age of 47 Tuc from self-consistent isochrone fits to colour-magnitude diagrams and the eclipsing member V69

Brogaard, K.; VandenBerg, D. A.; Bedin, L. R.; Milone, A. P.; Thygesen, A. O.; Grundahl, F., 2017,MNRAS, 468, 645.

​

Triangulum II. Not Especially Dense After All

Kirby, E. N.; Cohen, J. G.; Simon, J. D.; Guhathakurta, P.; Thygesen, A. O.; Duggan, G. E., 2017, ApJ, 838, 83.

​

The chemical composition of red giants in 47 Tucanae. II. Magnesium isotopes and pollution scenarios

Thygesen, A. O.; Sbordone, L.; Ludwig, H.-G.;  Ventura, P.;  Yong, D.; Collet, R.; Christlieb, N.; Melendez, J.; Zaggia, S., 2016, A&A, 588, 66.

​

KIC 4768731: a bright long-period roAp star in the Kepler field

Smalley, B.; Niemczura, E.; Murphy, S. J.; Lehmann, H.; Kurtz, D. W.; 

Holdsworth, D. L.; Cunha, M. S.; Balona, L. A.; Briquet, M.; Bruntt, H.; 

De Cat, P.; Lampens, P.; Thygesen, A. O.; Uytterhoeven, K., 2015, MNRAS, 452, 3334.

​

The chemical composition of red giants in 47 Tucanae I: Fundamental parameters and chemical abundance patterns.

Thygesen, A. O.; Sbordone, L.; Andrievsky, S.; Korotin, S.; Yong, D.; Zaggia, S.; Ludwig, H.-G.; Collet, R.; Asplund, M.; D’Antona, F.; Meléndez, J.; D’Ercole, A., 2014, A&A, 572, 108.

 

Seismic constraints on the radial dependence of the internal rotation profiles of six Kepler subgiants and young red giants.

Deheuvels, S.; Dogan, G.; Goupil, M. J.; Appourchaux, T.; Benomar, O.; Bruntt, H.; Campante, T. L.; Casagrande, L.; Ceillier, T.; Davies, G. R.; De Cat, P.; Fu, J. N.; García, R. A.; Lobel, A.; Mosser, B.; Reese, D. R.; Regulo, C.; Schou, J.; Stahn, T.; Thygesen, A. O.; Yang, X. H.; Chaplin, W. J.; Christensen-Dalsgaard, J.; Eggenberger, P.; Gizon, L.; Mathis, S.; Molenda-Zakowicz, J.; Pinsonneault, M., 2014, A&A, 564, 27. 

 

KIC 8410637: a 408-day period eclipsing binary containing a pulsating giant star.

Frandsen, S.; Lehmann, H.; Hekker, S.; Southworth, J.; Debosscher, J.; Beck, P.; Hartmann, M.; Pigulski, A.; Kopacki, G.; KoÅ‚aczkowski, Z.; Steslicki, M.; Thygesen, A. O.; Brogaard, K.; Elsworth, Y., 2013, A&A, 556, 138. 

 

Sounding stellar cycles with Kepler - II. Ground-based observations.

Karoff, C.; Metcalfe, T. S.; Chaplin, W. J.; Frandsen, S.; Grundahl, F.; Kjeldsen, H.; Christensen-Dalsgaard, J.; Nielsen, M. B.; Frimann, S.; Thygesen, A. O.; Arentoft, T.; Amby, T. M.; Sousa, S. G.; Buzasi, D. L., 2013, MNRAS, 433, 3227. 

 

Asteroseismology of KIC 11754974: a high-amplitude SX Phe pulsator in a 343-d binary system.

Murphy, S. J.; Pigulski, A.; Kurtz, D. W.; Suárez, J. C.; Handler, G.; Balona, L. A.; Smalley, B.; Uytterhoeven, K.; Szabó, R.; Thygesen, A. O.; Elkin, V.; Breger, M.; Grigahcène, A.; Guzik, J. A.; Nemec, J. M.; Southworth, J., 2013, MNRAS, 432, 2284. 

 

On the Significance of the Excess Number of Strong Mg II Absorbers Observed toward Gamma-Ray Bursts.

Rapoport, S.; Onken, C. A.; Wyithe, J. S. B.; Schmidt, B. P.; Thygesen, A. O., 2013, ApJ, 776, 23. 

 

Characterizing Two Solar-type Kepler Subgiants with Asteroseismology: KIC 10920273 and KIC 11395018.

Dogan, G.; Metcalfe, T. S.; Deheuvels, S.; Di Mauro, M. P.; Eggenberger, P.; Creevey, O. L.; Monteiro, M. J. P. F. G.; Pinsonneault, M.; Frasca, A.; Karoff, C.; Mathur, S.; Sousa, S. G.; Brandão, I. M.; Campante, T. L.; Handberg, R.; Thygesen, A. O.; Biazzo, K.; Bruntt, H.; Niemczura, E.; Bedding, T. R.; Chaplin, W. J.; Christensen-Dalsgaard, J.; García, R. A.; Molenda-Zakowicz, J.; Stello, D.; Van Saders, J. L.; Kjeldsen, H.; Still, M.; Thompson, S. E.; Van Cleve, J., 2013, ApJ, 763, 49. 

 

Atmospheric parameters of 82 red giants in the Kepler field.

Thygesen, A. O.; Frandsen, S.; Bruntt, H.; Kallinger, T.; Andersen, M. F.; Elsworth, Y. P.; Hekker, S.; Karoff, C.; Stello, D.; Brogaard, K.; Burke, C.; Caldwell, D. A.; Christiansen, J. L., 2012, A&A, 543, 160.

 

Accurate fundamental parameters and detailed abundance patterns from spectroscopy of 93 solar-type Kepler targets.

Bruntt, H.; Basu, S.; Smalley, B.; Chaplin, W. J.; Verner, G. A.; Bedding, T. R.; Catala, C.; Gazzano, J.-C.; Molenda-Zakowicz, J.; Thygesen, A. O.; Uytterhoeven, K.; Hekker, S.; Huber, D.; Karoff, C.; Mathur, S.; Mosser, B.; Appourchaux, T.; Campante, T. L.; Elsworth, Y.; García, R. A.; Handberg, R.; Metcalfe, T. S.; Quirion, P.-O.; Régulo, C.; Roxburgh, I. W.; Stello, D.; Christensen-Dalsgaard, J.; Kawaler, S. D.; Kjeldsen, H.; Morris, R. L.; Quintana, E. V.; Sanderfer, D. T., 2012, MNRAS, 423, 122B. 

 

Fundamental properties of five Kepler stars using global asteroseismic quantities and ground-based observations.

Creevey, O.; Dogan, G.; Frasca, A.; Thygesen, A. O.; Basu, S.; Bhattacharya, J.; Biazzo, K.; Brandão, I. M.; Bruntt, H.; Mazumdar, A.; Niemczura, E.; Shrotriya, T.; Sousa, S. G.; Stello, D.; Subramaniam,

A.; Campante, T. L.; Handberg, R.; Mathur, S.; Bedding, T. R.; García, R. A.; Régulo, C.; Salabert, D.; Molenda-Zakowicz, J.; Quirion, P.-O.; White, T. R.; Bonanno, A.; Chaplin, W. J.; Christensen-Dalsgaard, J.; Christiansen, J. L.; Elsworth, Y.; Fanelli, M. N.; Karoff, C.; Kinemuchi, K.; Kjeldsen, H.; Gai, N.; Monteiro, M. J. P. F. G.; Suárez, J. C., 2012, A&A, 537, 111. 

 

The excitation of solar-like oscillations in a delta Sct star by efficient envelope convection.

Antoci, V.; Handler, G.; Campante, T. L.; Thygesen, A. O.; Moya, A.; Kallinger, T.; Stello, D.; Grigahcéne, A.; Kjeldsen, H.; Bedding, T. R.; Lüftinger, T.; Christensen-Dalsgaard, J.; Catanzaro, G.; Frasca, A.; De Cat, P.; Uytterhoeven, K.; Bruntt, H.; Houdek, G.; Kurtz, D. W.; Lenz, P.; Kaiser, A.; van Cleve, J.; Allen, C.; Clarke, B. D., 2011, Nature, 477, 570. 

 

First Kepler results on compact pulsators - VI. Targets in the final half of the survey phase.

Østensen, R. H.; Silvotti, R.; Charpinet, S.; Oreiro, R.; Bloemen, S.; Baran, A. S.; Reed, M. D.; Kawaler, S. D.; Telting, J. H.; Green, E. M.; O’Toole, S. J.; Aerts, C.; Gänsicke, B. T.; Marsh, T. R.; Breedt, E.; Heber, U.; Koester, D.; Quint, A. C.; Kurtz, D. W.; Rodríguez-López, C.; Vuckovic, M.; Ottosen, T. A.; Frimann, S.; Somero, A.; Wilson, P. A.; Thygesen, A. O.; Lindberg, J. E.; Kjeldsen, H.; Christensen-Dalsgaard, J.; Allen, C.; McCauliff, S.; Middour, C. K., 2011, MNRAS, 414, 2860. 

 

Atmospheric parameters of Giants in the Kepler field.

Bruntt, H.; Frandsen, S.; Thygesen, A.O., 2011, A&A, 528, 121. 

Seminars &
Colloquia

  • Astrophysics Colloquium, ASIAA, Taiwan (2016)

  • GalCafe talk, CalTech, USA (2015)

  • Lunch Seminar, ESO Vitacura, Chile (2014)

  • Astrophysical Seminar, University of Valparaíso, Chile (2014)

  • FLASH talk, University of Santa Cruz, California, USA (2014)

  • SFB seminar, ARI, Heidelberg University, Germany (2014)

  • IMPRS retreat seminar, Germany (2014)

  • Astrocoffee seminar, Aarhus University, Denmark (2013)

  • Astronomy colloquium, Nordic Optical Telescope, Spain (2013)

  • Astronomy colloquium, Gemini South, Chile (2013)

  • IMPRS seminar, Heidelberg, Germany (2013)

  • IMPRS seminar, Heidelberg, Germany (2012)

Conferences
& Workshops

 Keck Science Meeting, September 2016, Pasadena, USA.

  • Contributed talk; Probing the Milky Way halo with Mg isotopes.

 

The XII Torino Workshop on AGB stars, August 2016, Budapest, Hungary.

  • Contributed talk; Investigating the Milky Way halo enrichment with Mg isotopes.

 

Nuclei in the Cosmos 14, June 2016, Niigata, Japan.

 

3rd Co5bold Workshop, April 2016, Naples, Italy.

  • Contributed talk; Formation of MgH lines in 3D.

​

225th Meeting of the American Astronomical Society, January 2015, Seattle, USA.

  • Dissertation talk; Magnesium isotopes in giants in the Milky Way inner disk and bulge: First results with 3D stellar atmospheres.

 

Nucleosynthesis and Chemical Evolution: Recent Progress and Future Directions, August 2014, Seattle, USA. 

  • Contributed talk; Magnesium isotopes in the globular cluster 47 Tucanae.

 

568. Wilhelm und Else Heraeus-Seminar; "Nucleosynthesis in Asymptotic Giant Branch Stars": July 2014, Bad Honnef, Germany.

  • Contributed talk; The Mixture of Magnesium Isotopes in the Milky Way bulge.

 

Asteroseismology of stellar populations in the Milky Way, July 2013, Sesto, Italy.

  • Poster presentation; ’Rapid fire’ spectroscopy of Kepler solar-like oscillators.

 

10th Potsdam Thinkshop: "High-resolution optical spectroscopy", May 2013, Potsdam, Germany.

  • Poster presentation; Magnesium isotopic mixture in 47 Tucanae.

 

Death of Stars and Lives of Galaxies, April 2013, Santiago, Chile.

  • Contributed talk; The isotopic mixture of Magnesium in 47 Tucanae.

 

"Reading the book of Globular Clusters with the lens of stellar evolution", Nov. 2012, Rome, Italy.

  • Poster presentation; Fundamental parameters of red giants in 47 Tucanae.

 

XII International Symposium on Nuclei in the Cosmos, Aug. 2012, Cairns, Australia.

  • Poster presentation; Fundamental parameters of a sample of red giants in the Kepler field.

 

Cool Stars 17, June 2012, Barcelona, Spain.

  • Poster presentation; Atmospheric parameters of red giants in the Kepler field.

 

First NCAC symposium, "Physical and chemical aspects of late stages of stellar evolution", Aug. 2011, Warszaw, Poland.

  • Poster presentation; Fundamental parameters for red giants in the Kepler field.

 

3rd KASC workshop, June 2010, Aarhus, Denmark.

 

Teaching
Experience

  • Heidelberg University; Winter semester 2013, Instructor for Introduction to astronomy I. Walkthrough of homework problems, correcting/grading homework, grading exam sheets, elaborating on lecture material.

  • Aarhus University, Denmark, Jan. 2010. Assistant teacher of undergraduate course on observational astronomy, using the IAC80cm telescope on Tenerife, Spain.

  • Aarhus University, Denmark, June 2009. Teaching high-school students on observational astronomy at "Astro Camp", held by the Danish Youth Association of Science.

  • Heidelberg University; Winter semester 2013, Instructor for Introduction to astronomy I. Walkthrough of homework problems, correcting/grading homework, grading exam sheets, elaborating on lecture material.

  • Aarhus University, Denmark, Jan. 2010. Assistant teacher of undergraduate course on observational astronomy, using the IAC80cm telescope on Tenerife, Spain.

  • Aarhus University, Denmark, June 2009. Teaching high-school students on observational astronomy at "Astro Camp", held by the Danish Youth Association of Science.

Outreach

  •  Astro on Tap, 2017; Singing With the Stars: The True Music of the Spheres.

  •  Greenway Talk series, 2017; From Bass to Sopranos: The Many Voices of the Stars.

  •  Greenway Talk series, 2016; Globular Clusters: The Ancient Mega-Cities of the Universe.

  •  Caltech Astro Public Lecture Series; Volunteering as telescope operator and Q&A panelist member on multiple occasions.

  • Caltech Astronomy Outreach; Responsible for hosting the 2017 Solar Eclipse Viewing Party.

  • "Bodges, Blunders and Bullet" - Popular science article for BBC Sky at Night magazine, Dec. 2015 issue.

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