Publications

Full publication list

For a full list of refereed papers, please see my full collection at NASA ADS.

Selected publications

Below is a selection of five recent papers where I am either first author or provided a significant contribution.

  1. “Tracing Embedded Stellar Populations in Clusters and Galaxies Using Molecular Emission: Methanol as a Signature of the Low-Mass End of the IMF”, L.E. Kristensen & E.A. Bergin 2015, ApJL in press 
  2.  “APEX-CHAMP+ high-J CO observations of low-mass young stellar objects: IV. Mechanical and radiative feedback”, U.A. Yıldız, L.E. Kristensen, E.F. van Dishoeck, M.R. Hogerheijde, A. Karska, A. Belloche, A. Endo, W. Frieswijk, R. G̈sten, T.A. van Kempen, S.Leurini, Z.Nagy, J.P. Perez-Beaupuits, C. Risacher, N. van der Marel, R.J. van Weeren & F. Wyrowski 2015, A&A, 5576, 109
  3. “Water in low-mass star-forming regions with Herschel (WISH): II. Evolution of 557 GHz 110–101 emission in low-mass protostars”, L.E. Kristensen, E.F. van Dishoeck, E.A. Bergin, et al.  2012, A&A, 542, 8 
  4. “ALMA CO J = 6–5 observations of IRAS16293–2422: Shocks and entrainment”, L.E. Kristensen, P.D. Klaassen, J.C. Mottram, M. Schmalzl and M.R. Hogerheijde 2013, A&A, 549, 6
  5. "Observational evidence for dissociative shocks in the inner 100 AU of low-mass protostars using Herschel-HIFI", L.E. Kristensen, E.F. van Dishoeck, A.O. Benz, S. Bruderer, R. Visser and S.F. Wampfler 2013, A&A, 557, 23

Talks, colloquia and seminars, past 3 years

  1. Contributed talk, High-Resolution Submillimeter Spectroscopy of the Interstellar Medium and Star Forming Regions - From Herschel to ALMA and Beyond, Zakopane, Poland, Feb. 26, 2015. ``Shocks in low-mass protostars: From Herschel to ALMA via the SMA''
  2. Invited lunch talk, Boston University, Boston, USA, April 7, 2015. ``Shocks in low-mass protostars''
  3. Colloquium, NASA JPL, Pasadena, USA, Feb. 26, 2015. ``Shocks and star formation''
  4. Star formation lunch talk, Caltech, Pasadena, USA, Feb. 24, 2015. ``Shocks and star formation''
  5. Invited lunch talk, SMA, Hilo, Hawaii, Jan. 21, 2015. ``Imaging shocks in low-mass protostars with the SMA''
  6. Invited talk, WISH team meeting, Rome, Italy, Oct. 22-24, 2014. ``COPS-HIFI: CO in ProtoStars with HIFI''
  7. Invited talk, Lise Meitner Symposium, Gothenburg, Sweden, Sept. 18, 2014. ``WISHes coming true: following the cold water trail through space and time''
  8. Colloquium, SRON, Groningen, the Netherlands, Sept. 4, 2014. ``Far-infrared observations of energetic feedback in low-mass protostars''
  9. Contributed talk, Star Formation: Data, Models and Visualization, Heidelberg, Germany, June 23-26, 2014. ``Mechanical and radiative feedback from low-mass protostars''
  10. Contributed talk, The Submillimeter Array: First Decade of Discovery, Cambridge, USA, June 9-10, 2014. ``Hot Water with the SMA in Low-Mass Protostars''
  11. Colloquium, Los Alamos National Laboratories, Los Alamos, USA, Dec. 4, 2013. ``Shocks and Star Formation''
  12. Colloquium, University of Michigan, Ann Arbor, USA, Oct. 24, 2013. ``Shocks and Star Formation''
  13. Astrochemistry seminar, Leiden Observatory, Leiden, the Netherlands, Jan. 8, 2013. ``Shocks in low-mass protostars: Herschel and ALMA observations''
  14. Invited talk, Greenland Telescope Science Meeting, Cambridge, USA, Sept. 18, 2012. ``High-J CO in Galactic outflows: possibilities for unique GLT science''
  15. Invited talk, European week of astronomy and space science (EWASS), Rome, Italy, July 1-6, 2012. ``Water vapor around young low-mass protostars''
  16. Invited talk, Studies of star and planet forming regions with Herschel, Leiden, the Netherlands, June 4-15, 2012. ``WISH: Water in star-forming regions with Herschel''
  17. Contributed talk, From atoms to pebbles: Herschel's view of star and planet formation, Grenoble, France, March 20-23, 2012. ``Feedback from low-mass protostars: some like it hot!''

PR and outreach

  1. Featured on the Nature News Blog for a story on how methanol is distributed around young low-mass protostars.
  2. Eureka, Dutch magazine intended for students in science, article on my work in WISH (vol. 30, August 2010).
  3. “Young star shooting water bullets”, a press release following the story on high-velocity water emission towards the low-mass protostar L1448 has been circulated in Dutch and Spanish media, and was also picked up by the National Geographic News Online, and US News.  This press release resulted in an interview at the IAU Symposium in Toledo, 2011:



  4. In November 2012 I gave an Astrochemistry seminar at Leiden Observatory, the Netherlands, which was taped. See the seminar below.