Background:

• since 10/2018

PhD student in the Planetary Sciences and Remote Sensing Group at FU Berlin.

• 2017 - 09/2018

PhD student in the research group, planetary science by space missions, at the Inst. of Earth Sciences, Heidelberg University.

• 2014 - 2017

Research assistant in the Geo- and Cosmochemistry research group at the institute of Geosciences, University of Heidelberg.

Topic of Dissertation:

Icy dust in Saturn's E-ring

  

Research Interests:

• Planetary rings

• Icy moons in the outer Solar System

• Cosmic dust

• Planetary space missions

• Mass spectrometry

2021

Nölle, L., Postberg, F., Kempf, S., Hillier, J., Khawaja, N., Klenner, F., Hsu, S., and Srama, R. (2021) Compositional Indicators for a Dynamical Barrier within Saturn's E-ring. EPSC Abstracts Vol.15, EPSC2021-146 (held online).

       

2020

Khawaja, N., Hillier, J., Klenner, F., Nölle, L. and Postberg, F. (2020) Comparative Study of Mass Spectrometry Techniques Relevant to Current and Future Space Missions, EPSC Abstracts Vol.14, EPSC2020-827.

Klenner, F., F. Postberg, J. Hillier, N. Khawaja, R. Reviol, F. Stolz, M. L. Cable, B. Abel, and L. Nölle (2020), Analog Experiments for the Identification of Trace Biosignatures in Ice Grains from Extraterrestrial Ocean Worlds, Astrobiology, 20(2), doi:10.1089/ast.2019.2065.

Zou, Z., Postberg, F., Hillier, J., Khawaja, N., Klenner, F., Nölle, L. (2020) Compositional heterogeneity amongst salt-rich grains emitted from Enceladus' subsurface ocean. 22nd EGU General Assembly, held online 4-8 May, 2020, id. 18970.

  

2019

Albin, T., F. Willenborg, L. Nölle, F. Postberg, and R. Srama (2019), A Deep Learning approach to classify Cassini Cosmic Dust Analyzer (CDA) mass spectra, in EPSC Abstracts Vol. 13, EPSC-DPS2019-1585.

Ershova, A., J. Schmidt, F. Postberg, N. Khawaja, and L. Nölle (2019), Compositional Profiles of the Enceladus Dust Plume from CDA measurements at flybys E5 and E17, in EPSC Abstracts Vol. 13, EPSC-DPS2019-1401.

Khawaja, N., F. Postberg, J. Hillier, F. Klenner, S. Kempf, L. Nölle, R. Reviol, Z. Zou, and R. Srama (2019), Low-mass nitrogen-, oxygen-bearing, and aromatic compounds in Enceladean ice grains, MNRAS, 489(4), 5231–5243, doi:10.1093/mnras/stz2280.

Khawaja, N., F. Postberg, J. Hillier, F. Klenner, and L. Nölle (2019), Volatile and Refractory Organic Material from the Hydrothermal Depths of Enceladus’ Subsurface Ocean, in Goldschmidt Abstracts, p. 1663.

Khawaja, N., F. Postberg, J. Hillier, F. Klenner, L. Nölle, and R. Reviol (2019), Astrobiologically relevant precursor organic compounds from the subsurface ocean of Enceladus, in EPSC Abstracts Vol. 13, EPSC-DPS2019-474.

Khawaja, N., F. Postberg, J. Hillier, F. Klenner, S. Kempf, L. Nölle, R. Reviol, Z. Zou, and R. Srama (2019), Detection of low mass amines, carbonyls and aromatics from within Enceladus – suitable precursors for biologically-relevant hydrothermal synthesis, in AGU Fall Meeting Abstracts, P24A-06.

Nölle, L., F. Postberg, N. Khawaja, J. Hillier, Z. Zou, S. Hsu, T. Albin, and R. Srama (2019), Chemical ‘aging’ of icy dust grains in Saturn’s E-ring, in EPSC Abstracts Vol. 13, EPSC-DPS2019-468.

Postberg, F., N. Khawaja, L. Nölle, F. Klenner, J. Hillier, H.-W. Hsu, R. Srama, G. Tobie, A. Bouquet, J. H. Waite, and C. R. Glein (2019), Origins of Organic Matter in Enceladus' Plume, in Astrobiology Science Conference, 203–4.

Postberg, F., N. Khawaja, L. Nölle, F. Klenner, J. Hillier, G. Tobie, G. Choblet, C. Glein, A. Bouquet, and J. Schmidt (2019), The long Journey of Organic Material from Enceladus Hydrothermal Core into the Plume, in EPSC Abstracts Vol. 13, EPSC-DPS2019-1960.

 

2018

Postberg, F., N. Khawaja, B. Abel, ..., L. Nölle, and others (2018), Macromolecular organic compounds from the depths of Enceladus, Nature, 558, 564-568.

Nozair Khawaja, Frank Postberg, Fabian Klenner, Lenz Nölle, Rene Reviol. Cassini’s mass spectrometers find complex organic material in ice grains from the subsurface ocean of Enceladus. Invited Conference Paper, Advances in Space Mass Spectrometry for the Search of Extraterrestrial Signs of Life-2018, Orlean, France.

Frank Postberg, Nozair Khawaja, Lenz Nölle, Fabian Klenner. From a hydrothermal core into space: life and fate of Enceladean organic molecules. AGU Fall Meeting, Washington, D.C., USA (2018).

  

2017

Lenz Nölle, Frank Postberg, Nozair Khawaja, Georg Moragas-Klostemeyer, Ralf Srama (2017) 3-dimensional compositional scan of Saturn’s E-ring. Conference paper, Ices in the Solar System ESAC Madrid, Spain

L. Nölle, F. Postberg, N. Khawaja, T. Albin, and R. Srama. Compositional 3-D mapping of icy dust grains in the E-ring. Conference Paper, European Planetary Science Congress (EPSC-2017), Riga, Latvia.

N. Khawaja; F. Postberg; F. Klenner; L. Nölle; R. Reviol; R. Srama. Organic compounds in the ice grains from the subsurface ocean of Enceladus. ESLAB Symposium: Extreme Habitable Environments-2017, Conference Paper, European Space Agency ESA/ESTEC Netherland.

   

2015

Khawaja, N., Postberg, F., Reviol, R., Klenner, F., Nölle, L. & Srama, R. (2015) Organic compounds from Enceladus’ sub-surface ocean as seen by CDA. Conference Paper, European Planetary Science Congress (EPSC), October 2015, Nantes, France.

Khawaja, N., Postberg, F., Reviol, R., Nölle, L., Klenner, F. & Srama, R. (2015) Identification of Organics in Ice Grains from Enceladus. Conference Paper, AGU Fall Meeting, December 2015, San Francisco, USA.

Postberg, F., Khawaja, N., Reviol, R., Nölle, L., Klenner, F., Hsu, H.-W. & Horanyi, M. (2015) On Organic Material in E Ring Ice Grains (Invited). Conference Paper, AGU Fall Meeting, December 2015, San Francisco, USA.

Srama, R., Postberg, F., Henkel, H., Li, Y., Reviol, R., Khawaja, N., Klenner, F., Moragas-Klostermeyer, G., Nölle, L., Soja, R., Sternovsky, Z., Kempf, S. & Trieloff, M. (2015) ENIJA: Search for life with a high-resolution TOF-MS for in situ compositional analysis of nano- and micron-sized dust particles. Conference Paper, EGU2015-13456, April 2015, Vienna, Austria.