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RESUME

I am an astronomer with broad and multidisciplinary interests spanning supernova science, observational astronomy, multi-messenger astronomy, massive stars, instrumentation and cosmology.
 
I obtained a PhD in Astronomy from Universidad de Chile in 2016 under the supervision of Prof. Mario Hamuy. Then, I continued my research in supernovae, with Prof. Alexei Filippenko at the University of California, Berkeley. After this, I was a Research Postdoctoral Associate at the University of Hawaii, working with Prof. Benjamin Shappee on multi-messenger astronomy. Since December 2022, I have been a postdoc at the Université Pierre & Marie Curie (France), working with Prof. Nicolas Regnault and analysing Type Ia supernovae from the Zwicky Transient Factory to constrain the dark energy equation of state.
 
I am the first author of 12 publications in peer-to-peer reviews, including the most precise Universe expansion rate measurement from Type II supernovae. In total, I published 65 original articles in top international peer- reviewed journals, including seven papers led by under and graduate students that I mentored. With a total of 2,050 citations and a h-index of 25, my works are recognised worldwide. I have been invited to edit a book on the Hubble Tension for the Springer Series in Astrophysics and Cosmology (https://www.springer.com/).
 
I delivered over ten talks, of which seven were invited seminars at various Universities in Chile, France, Portugal, USA, and two outreach talks. Finally, I have PIed nine observational campaigns and I observed almost 100 nights at the largest observatories in the world.
Thomas de Jaeger, Astronomy, Supernova
IT
  • Op. Systems: Ubuntu, Windows

  • Astronomy: IRAF, Sky cat

  • Computing: Python, Matlab

  • Machine learning: classification ( Random Forest, SVM, KNN) clustering: (k-means, dbscan); Bayesian inferences, modelisation (regression, Gaussian Process)

  • Others: Latex, powerpoint

Languages

French: Native

English: Excellent command

Spanish: Fluent

Portuguese: Basics

Research
Interests

Supernovae and peculiar velocities, cosmological used of supernovae, reddening law, multi-messenger astronomy: Distance determination using Type II supernovae. Photometric and spectroscopic methods (PCM-SCM). Spectroscopy. Light-curves and colour-curves analysis. Host-galaxy extinction. Extinction laws. Physics of the explosion (Shock breakout). Observation strategy.

Educaction
Ph.D. in Astrophysics, Universidad de Chile (2011-2016)
  • Thesis Topic: Independent evidence for the cosmic acceleration from Type II supernovae.
  •  Adviser: Professor Mario Hamuy
 
Master degree in Fundamentals physics, Université de Toulouse (2010-2011)
 
Master degree in Astrophysics Space Science and Planetology, Université de Toulouse (2008-2010)
  • Thesis TopicStellar fundamental parameters using the Center for High Angular Resolution Astronomy
  •  Adviser: Professor Denis Mourard 
 
B.Sc. in Fundamentals physics, Université of Toulouse (2005-2008)
 
Academic
Appointements
  • Scientific Researcher, Université Pierre & Marie Curie, Paris (2022-present)
    •  Professor: Nicolas Regnault
  • Junior Scientific Researcher, University of Hawai‘i, Mānoa (2020-2022)
       •  Professor: Ben Shappee
  • Postdoctoral Scholar, University of California, Berkeley (2016-2020)
    •  Professor: Alex Filippenko
Skills
Writing & Analytical:
  • Knowledge of scientific methods to organise and test ideas: logical thinking, critical analysis.
  • Ability to collect and analyse large datasets using statistical methods: Bayesian inferences, χ 2 and F tests
  • Capacity for using different research methodologies and solve complex problems.
  • Ability to work under pressure and deadlines: telescope time proposal deadlines, supervisor queries.
  • Extensive writing experience includes the publications in peer to peer reviews: The Astrophysical Journal, Monthly Notices of the Royal Astronomical Society.

Communication & Presentations:
  • Work presentations in department meetings and international conferences: oral and poster presentations.
  • Highly competent in explaining complex information and ideas to general public: school talks, Calan Observatory public guided visits.
  • Ability to listen concerns and to helpful: teaching assistant in astronomy and private tutoring in mathematics. 
 
Organisational & Team Work:
  • Principal investigator of the SNe II cosmology project at UC Berkeley in collaboration with international teams: coordination of observations, meetings, and division of labour.
  • A reliable team member who complete in time any tasks assigned: proposal, papers.
  • Management of professional astronomical observations: strategy planning, data collection and reduction, data organisation and analysis, publication.
  • Cooperative works in various publications.
Publications
Collaborations
  • Member of the Zwicky Transient Factory France group (2022-present)
  • Member of the Host galaxies properties and supernova flows (2022-present)
  • Member of the Hawaii Supernova flows (2022-present)
  • Spectral Classification of Astronomical Transients (SCAT) survey (2020-present)
  • Mid-Infrared SupernovA Collaboration (MIRSNAC) (2022-present)
  • All-Sky Automated Survey for Supernovae (ASAS-SN) (2020-present)
  • Spectral Classification of Astronomical Transients (SCAT) survey (2020-present)
  • Participant of the Dark Energy Survey Type II supernova (2017-present)
  • External Collaborator of the Hyper Suprime Camera-SSP transient team (2016-present)
  • Member of the Millennium Institute of Astrophysics (2013 to 2016)
  • Member of the High Cadence Transient Survey (2013-present)
  •  Participant of the Carnegie Supernovae Project (2013-present)
  •  Member of the Public Spectroscopic Survey of Transient Objects (2012-2016)
  •  Member of the Millennium Center for Supernoa Studies (2011-2013)
Observations
  • Optical Imaging and spectroscopy:
    • FOCAS at Subaru telescope at Mauna Kea Observatory (8 n)

    • SNIFS at UH2.2m telescope at Mauna Kea Observatory (40n)
    • GOODMAN at SOAR telescope on Cerro Pachon (4 n)
    • EFOSC2 and SOFI at NTT telecope at La Silla (3 n)
    • WFCCD at Du Pont telescope at Las Campanas Observatory (3 n)
    • DECam at Blanco telescope at Cerro Tololo Inter-American Observatory (8 n)
       • LDSS3 at CLAY telescope at Las Campanas Observatory (6 n)
       • KAST at Shane telescope at Lick Observatory (10 n)
       • LRIS at Keck telescope at Mauna Kea Observatory (6 n)
       • DEIMOS at Keck telescope at Mauna Kea Observatory (5 n)
  • Optical interferometry:
       • VEGA with the CHARA at mount Wilson (5 n)
  • Data reduction/analysis experience:
      • Reduced OPTICAL/NIR imaging
      • Reduced OPTICAL long-slit spectroscopy
      • Experienced user of IRAF reduction
  • Observationnal project as PI:
      • 2022B, UH2.2m Telescope, Mauna Kea, USA. Four nights with SNIFS
      • 2022B, Subaru Telescope (8.2m), Mauna Kea, USA. Four nights with FOCAS.
      • 2022A, Subaru Telescope (8.2m), Mauna Kea, USA. Two half nights with FO-
CAS.
      • 2022A, UH2.2m Telescope, Mauna Kea, USA. Four nights with SNIFS.
      • 2021B, Gemini North Telescope (8.2m), Mauna Kea, USA. eight hours with
GMOS as rapid Target of Opportunity (rToO)
      • 2021A, Gemini North Telescope (8.2m), Mauna Kea, USA. eight hours with
GMOS as rapid Target of Opportunity (rToO).
      • 2018A, Keck Telescope (10m), Mauna Kea, USA. three half nights with DEIMOS
      • 2017B, Keck Telescope (10m), Mauna Kea, USA. three half nights with DEIMOS
      • 2013A, Blanco Telescope (4m), Cerro Tololo Inter-American Observatory, USA.
three nights with DECAM.
Talks
  • Invited speakers and colloquium:
      • Particle Physics Seminar Committee, April 2022, Brookhaven National Laboratory, USA: Tension between the local Universe and the CMB: should the LCDM model be challenged or not?
      • CosmoVerse Seminars: Online: Seminar Talk: Type II supernovae and the H0 tension.
      • Institute for Astronomy, April 2021, Manoa, USA: SNe II cosmology: H0 tension.
      • Center for astrophysics and gravitation. January 2019, Lisboa, Portugal: SNe II cosmology: Past and future.
      • City College of San Francisco. May 2018, San Francisco, USA: An accelerating Universe.
      • EWASS. April 2018, Liverpool, UK: Type II cosmology: last update.
      • European Southern Observatory, April 2017, Santiago, Chile: Type II cosmology: a bright future.
 
  • Talks:
    Correcting Reddening Intelligently for cosmological Supernova Probes (CRISP). April 2020, Lisboa, Portugal:Contributed Talk: Implications of varying Rv in cosmology.
      • Laboratoire de physique nucléaire et de hautes énergies. January 2019, Paris, France: SNe II cosmology: a bright future.
      • A symposium celebrating Alex Filippenko’s 60th birthday. August 2018, Aptos, USA: SNe II cosmology: a bright future.
      • South American Supernovae. April 2017, La Serena, Chile: Extending the Type II supernova Hubble diagram beyond z=0.3.
      • Astro-explosions. December 2016, Berkeley, USA: Type II cosmology: a bright future.
      • South American Supernovae. May 2016, La Plata, Argentina: High-z Type II cosmology.
     • South American Supernovae April 2015, Santiago, Chile: The first SNe II HD using the photometric-colour method.
      • SN Journal club. April 2014, Santiago, Chile: An accelerated Universe.
Grants
• JWST cycle 1,2021, (ID: 2114), PI: Ashall C., Co-I: inc. T. de Jaeger, “MIR
Spectroscopy of Type Ia Supernovae: The Key To Unlocking Their Explosions
and Element Production”, 317,651 USD
• JWST cycle 1, (ID: 2122), PI: Ashall C., Co-I: inc. T. de Jaeger, “Dust, Mass
Loss and Explosions of Massive Stars in the MIR”, 292,290 USD
• Proyecto Nacional (ID2020-115253GA-I00), PI: Galbany L., Co-I: inc. T.
de Jaeger, “Cornering the Hubble tension by studying systematics with SNe
(HOSTFLOWS)”, 155,577 EUR
• Hubble Space Telescope Cycle 28, PI: Filippenko A., Co-I: inc. T. de Jaeger,
“A Snapshot Survey of the Sites of Recent, Nearby Supernovae”, awarded 54
Snapshot Targets

•2020–2020 Hawaii Supernova flows Postdoctoral Fellow, 150,000 USD
•2016–2020 Bengier Postdoctoral Fellow: 200,000 USD
•2018 AAS travel grant: 2,000 USD
•2017 ESO visitor program: 5,000 USD
•2017 Supernovae Through the Ages travel grant: 2,500 USD
•2013–2016 PhD fellowship: Millenium of Astrophysics: 37,000 USD
•2013 IAU Symposium 296: Supernova environmental impacts: 3,000 USD
•2011–2013 PhD fellowship: Millennium Center for Supernova Studies: 24,000 USD
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