Overview

Research

My research focuses mainly on the early stages of planet formation, during which microscopic dust particles come together to form kilometer-size planetesimals – the building blocks of planets. I am interested in understanding how the chemical and elemental abundances in different regions of the protoplanetary disk are imprinted on the planets that are forming. Read more about my research here. 

Education

• Ph.D. in Astronomy, 2015, Leiden University
• M.Sc. in Astronomy & Astrophysics, 2010, University of Amsterdam
• B.Sc. in Physics & Astrophysics, 2009, University of Amsterdam 

Employment

• 2020 - present: Lecturer in Astrophysics, University of Exeter
• 2018 - 2020: NASA Hubble Fellow, The University of Arizona
• 2015 - 2018: Postdoctoral Scholar & NASA Hubble Fellow (since 2017), The University of Chicago

Selected Publications

• "Hints for icy pebble migration feeding an oxygen-rich chemistry in the inner planet-forming region of disks"
  Banzatti et al., 2020, ApJ, https://ui.adsabs.harvard.edu/abs/2020arXiv200913525B/abstract
• "CO depletion in protoplanetary disks: a unified picture combining physical sequestration and chemical processing"
  Krijt et al., 2020, ApJ, https://ui.adsabs.harvard.edu/abs/2020ApJ...899..134K/abstract
• "Color, composition, and thermal environment of Kuiper Belt object (486958) Arrokoth"
  Grundy et al., 2020, Science, https://ui.adsabs.harvard.edu/abs/2020Sci...367.3705G/abstract
• "Systematic Variations of CO Gas Abundance with Radius in Gas-rich Protoplanetary Disks"
  Zhang et al., 2019, ApJ, https://ui.adsabs.harvard.edu/abs/2019ApJ...883...98Z/abstract
• "Transport of CO in Protoplanetary Disks: Consequences of Pebble Formation, Settling, and Radial Drift"
  Krijt et al., 2018, ApJ, https://ui.adsabs.harvard.edu/abs/2018ApJ...864...78K/abstract
• "Tracing Water Vapor and Ice During Dust Growth"
  Krijt et al., 2016, ApJ, https://ui.adsabs.harvard.edu/abs/2016ApJ...833..285K/abstract
• "A Steeper than Linear Disk Mass-Stellar Mass Scaling Relation"
  Pascucci et al., 2016, ApJ, https://ui.adsabs.harvard.edu/abs/2016ApJ...831..125P/abstract

Visit SAO/NASA ADS or Google Scholar for a complete and up-to-date list of my publications.

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Publications

_{Copyright Notice: Any articles made available for download are for personal use only. Any other use requires prior permission of the author and the copyright holder.}

| 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 |

2024

• Pontoppidan KM, Salyk C, Banzatti A, Zhang K, Pascucci I, Öberg KI, Long F, Muñoz-Romero C, Carr J, Najita J. (2024) High-contrast JWST-MIRI Spectroscopy of Planet-forming Disks for the JDISC Survey, The Astrophysical Journal, volume 963, no. 2, DOI:10.3847/1538-4357/ad20f0.

2023

• Krijt S, Kama M, McClure M, Teske J, Bergin E, Shorttle O, Walsh K, Raymond S. (2023) Chemical Habitability: Supply and Retention of Life's Essential Elements During Planet Formation, Protostars and Planets VII, Astronomical Society of the Pacific Conference Series.
• Xie C, Pascucci I, Long F, Pontoppidan KM, Banzatti A, Kalyaan A, Salyk C, Liu Y, Najita JR, Pinilla P. (2023) Water-rich Disks around Late M Stars Unveiled: Exploring the Remarkable Case of Sz 114, ASTROPHYSICAL JOURNAL LETTERS, volume 959, no. 2, article no. ARTN L25, DOI:10.3847/2041-8213/ad0ed9. [PDF]
• Houge A, Macías E, Krijt S. (2023) Surviving the heat: multiwavelength analysis of V883 Ori reveals that dust aggregates survive the sublimation of their ice mantles, Monthly Notices of the Royal Astronomical Society, volume 527, no. 4, pages 9668-9682, DOI:10.1093/mnras/stad3758.
• Houge A, Macías E, Krijt S. (2023) Surviving the Heat: multi-wavelength analysis of V883 Ori reveals that dust aggregates survive the sublimation of their ice mantles, DOI:10.48550/arxiv.2312.01856.
• Banzatti A, Pontoppidan KM, Carr JS, Jellison E, Pascucci I, Najita JR, Muñoz-Romero CE, Öberg KI, Kalyaan A, Pinilla P. (2023) JWST Reveals Excess Cool Water near the Snow Line in Compact Disks, Consistent with Pebble Drift, Astrophysical Journal Letters, volume 957, no. 2, DOI:10.3847/2041-8213/acf5ec.
• Xie C, Pascucci I, Long F, Pontoppidan KM, Banzatti A, Kalyaan A, Salyk C, Liu Y, Najita JR, Pinilla P. (2023) Water-Rich Disks around Late M-stars Unveiled: Exploring the Remarkable Case of Sz114, DOI:10.48550/arxiv.2310.13205.
• Kalyaan A, Pinilla P, Krijt S, Banzatti A, Rosotti G, Mulders GD, Lambrechts M, Long F, Herczeg GJ. (2023) The Effect of Dust Evolution and Traps on Inner Disk Water Enrichment, ASTROPHYSICAL JOURNAL, volume 954, no. 1, article no. ARTN 66, DOI:10.3847/1538-4357/ace535. [PDF]
• Jiang H, Wang Y, Ormel CW, Krijt S, Dong R. (2023) Chemical footprints of giant planet formation, Astronomy & Astrophysics, volume 678, DOI:10.1051/0004-6361/202346637.
• Banzatti A, Pontoppidan KM, Carr J, Jellison E, Pascucci I, Najita J, Munoz-Romero CE, Oberg KI, Kalyaan A, Pinilla P. (2023) JWST reveals excess cool water near the snowline in compact disks, consistent with pebble drift, DOI:10.48550/arxiv.2307.03846.
• Jiang H, Wang Y, Ormel CW, Krijt S, Dong R. (2023) Chemical footprints of giant planet formation. Role of planet accretion in shaping the C/O ratio of protoplanetary disks, DOI:10.48550/arxiv.2307.08704.
• Kalyaan A, Pinilla P, Krijt S, Banzatti A, Rosotti G, Mulders GD, Lambrechts M, Long F, Herczeg GJ. (2023) The Effect of Dust Evolution and Traps on Inner Disk Water Enrichment, DOI:10.48550/arxiv.2307.01789.
• Houge A, Krijt S. (2023) Collisional evolution of dust and water ice in protoplanetary discs during and after an accretion outburst, DOI:10.48550/arxiv.2303.11318.
• Houge A, Krijt S. (2023) Collisional evolution of dust and water ice in protoplanetary discs during and after an accretion outburst, Monthly Notices of the Royal Astronomical Society, volume 521, no. 4, pages 5826-5845, DOI:10.1093/mnras/stad866.

2022

• James MM, Pascucci I, Liu Y, Banzatti A, Krijt S, Long F, Kamp I. (2022) Testing the Retrieval of Inner Disk Water Enrichment with Spitzer/IRS and JWST/MIRI, ASTROPHYSICAL JOURNAL, volume 941, no. 2, article no. ARTN 187, DOI:10.3847/1538-4357/ac9c61. [PDF]
• Eistrup C, Cleeves LI, Krijt S. (2022) Chemical evolution in planet-forming regions with growing grains, Astronomy & Astrophysics, volume 667, DOI:10.1051/0004-6361/202243981.
• Eistrup C, Cleeves LI, Krijt S. (2022) Chemical evolution in planet-forming regions with growing grains, DOI:10.48550/arxiv.2207.13158.
• Krijt S, Kama M, McClure M, Teske J, Bergin EA, Shorttle O, Walsh KJ, Raymond SN. (2022) Chemical Habitability: Supply and Retention of Life's Essential Elements During Planet Formation, DOI:10.48550/arxiv.2203.10056.

2021

• Arakawa S, Krijt S. (2021) On the stickiness of CO$_{2}$ and H$_{2}$O ice particles, DOI:10.48550/arxiv.2102.06683.
• Lichtenberg T, Krijt S. (2021) System-level fractionation of carbon from disk and planetesimal processing, DOI:10.48550/arxiv.2105.06159.
• van der Marel N, Bosman A, Krijt S, Mulders GD, Bergner JB. (2021) If you like C/O variations, you should have put a ring on it, DOI:10.48550/arxiv.2108.07679.
• Kalyaan A, Pinilla P, Krijt S, Mulders GD, Banzatti A. (2021) Linking Outer Disk Pebble Dynamics and Gaps to Inner Disk Water Enrichment, DOI:10.48550/arxiv.2109.02687.
• Kalyaan A, Pinilla P, Krijt S, Mulders GD, Banzatti A. (2021) Linking Outer Disk Pebble Dynamics and Gaps to Inner Disk Water Enrichment, ASTROPHYSICAL JOURNAL, volume 921, no. 1, article no. ARTN 84, DOI:10.3847/1538-4357/ac1e96. [PDF]
• Marel NVD, Bosman A, Krijt S, Mulders GD, Bergner JB. (2021) If you like C/O variations, you should have put a ring on it, A, volume 653. [PDF]
• Lichtenberg T, Krijt S. (2021) System-level Fractionation of Carbon from Disk and Planetesimal Processing, ASTROPHYSICAL JOURNAL LETTERS, volume 913, no. 2, article no. ARTN L20, DOI:10.3847/2041-8213/abfdce. [PDF]
• Arakawa S, Krijt S. (2021) On the Stickiness of CO₂ and H₂O Ice Particles, ASTROPHYSICAL JOURNAL, volume 910, no. 2, article no. ARTN 130, DOI:10.3847/1538-4357/abe61d. [PDF]

2020

• Krijt S, Bosman AD, Zhang K, Schwarz KR, Ciesla FJ, Bergin EA. (2020) CO Depletion in Protoplanetary Disks: A Unified Picture Combining Physical Sequestration and Chemical Processing, DOI:10.48550/arxiv.2007.09517.
• Banzatti A, Pascucci I, Bosman AD, Pinilla P, Salyk C, Herczeg GJ, Pontoppidan KM, Vazquez I, Watkins A, Krijt S. (2020) Hints for icy pebble migration feeding an oxygen-rich chemistry in the inner planet-forming region of disks, DOI:10.48550/arxiv.2009.13525.
• Unterborn C, Schaefer L, Krijt S. (2020) The Composition of Rocky Planets, Planetary Diversity, IOP Publishing, DOI:10.1088/2514-3433/abb4d9ch5.
• Desch SJ, Abbot D, Krijt S, Unterborn C, Morard G, Hartnett HE. (2020) The Volatile Content of Rocky Planets, Planetary Diversity, IOP Publishing, DOI:10.1088/2514-3433/abb4d9ch6.
• Grundy WM, Bird MK, Britt DT, Cook JC, Cruikshank DP, Howett CJA, Krijt S, Linscott IR, Olkin CB, Parker AH. (2020) Color, composition, and thermal environment of Kuiper Belt object (486958) Arrokoth, Science, volume 367, no. 6481, DOI:10.1126/science.aay3705. [PDF]
• Krijt S, Bosman AD, Zhang K, Schwarz KR, Ciesla FJ, Bergin EA. (2020) CO Depletion in Protoplanetary Disks: A Unified Picture Combining Physical Sequestration and Chemical Processing, The Astrophysical Journal, volume 899, no. 2, pages 134-134, DOI:10.3847/1538-4357/aba75d. [PDF]
• Banzatti A, Pascucci I, Bosman AD, Pinilla P, Salyk C, Herczeg GJ, Pontoppidan KM, Vazquez I, Watkins A, Krijt S. (2020) Hints for Icy Pebble Migration Feeding an Oxygen-rich Chemistry in the Inner Planet-forming Region of Disks, The Astrophysical Journal, volume 903, no. 2, pages 124-124, DOI:10.3847/1538-4357/abbc1a. [PDF]

2019

• Giacalone S, Teitler S, Königl A, Krijt S, Ciesla FJ. (2019) Dust Transport and Processing in Centrifugally Driven Protoplanetary Disk Winds, DOI:10.48550/arxiv.1907.04961.
• Zhang K, Bergin EA, Schwarz KR, Krijt S, Ciesla F. (2019) Systematic Variations of CO Gas Abundance with Radius in Gas-rich Protoplanetary Disks, DOI:10.48550/arxiv.1908.03267.
• Misener W, Krijt S, Ciesla FJ. (2019) Tracking Dust Grains During Transport and Growth in Protoplanetary Disks, DOI:10.48550/arxiv.1910.00609.
• Lyra W, Haworth T, Bitsch B, Casassus S, Cuello N, Currie T, Gáspár A, Jang-Condell H, Klahr H, Leigh N. (2019) Planet formation: The case for large efforts on the computational side. [PDF]
• Giacalone S, Teitler S, Königl A, Krijt S, Ciesla FJ. (2019) Dust Transport and Processing in Centrifugally Driven Protoplanetary Disk Winds, The Astrophysical Journal, volume 882, no. 1, pages 33-33, DOI:10.3847/1538-4357/ab311a. [PDF]
• Zhang K, Bergin EA, Schwarz K, Krijt S, Ciesla F. (2019) Systematic Variations of CO Gas Abundance with Radius in Gas-rich Protoplanetary Disks, The Astrophysical Journal, volume 883, no. 1, pages 98-98, DOI:10.3847/1538-4357/ab38b9. [PDF]
• Misener W, Krijt S, Ciesla FJ. (2019) Tracking Dust Grains during Transport and Growth in Protoplanetary Disks, The Astrophysical Journal, volume 885, no. 2, pages 118-118, DOI:10.3847/1538-4357/ab4a13. [PDF]

2018

• Ciesla F, Krijt S, Yokochi R, Sandford S. (2018) The Efficiency of Noble Gas Trapping in Astrophysical Environments, DOI:10.48550/arxiv.1811.06056.
• Krijt S, Schwarz KR, Bergin EA, Ciesla FJ. (2018) Transport of CO in Protoplanetary Disks: Consequences of Pebble Formation, Settling, and Radial Drift, DOI:10.48550/arxiv.1808.01840.
• Schoonenberg D, Ormel CW, Krijt S. (2018) A Lagrangian Model for Dust Evolution in Protoplanetary Disks: Formation of Wet and Dry Planetesimals at Different Stellar Masses, DOI:10.48550/arxiv.1810.02370.
• Schräpler R, Blum J, Krijt S, Raabe J-H. (2018) The Physics of Protoplanetary Dust Agglomerates. X. High-velocity Collisions between Small and Large Dust Agglomerates as a Growth Barrier, The Astrophysical Journal, volume 853, no. 1, pages 74-74, DOI:10.3847/1538-4357/aaa0d2. [PDF]
• Krijt S, Schwarz KR, Bergin EA, Ciesla FJ. (2018) Transport of CO in Protoplanetary Disks: Consequences of Pebble Formation, Settling, and Radial Drift, The Astrophysical Journal, volume 864, no. 1, pages 78-78, DOI:10.3847/1538-4357/aad69b. [PDF]
• Ciesla FJ, Krijt S, Yokochi R, Sandford S. (2018) The Efficiency of Noble Gas Trapping in Astrophysical Environments, The Astrophysical Journal, volume 867, no. 2, pages 146-146, DOI:10.3847/1538-4357/aae1a7. [PDF]
• Schoonenberg D, Ormel CW, Krijt S. (2018) A Lagrangian model for dust evolution in protoplanetary disks: formation of wet and dry planetesimals at different stellar masses, Astronomy & Astrophysics, volume 620, pages A134-A134, DOI:10.1051/0004-6361/201834047. [PDF]

2017

• Schräpler R, Blum J, Krijt S, Raabe J-H. (2017) The physics of protoplanetesimal dust agglomerates. X. High-velocity collisions between small and large dust agglomerates as growth barrier, DOI:10.48550/arxiv.1712.04215.
• Krijt S, Bowling TJ, Lyons RJ, Ciesla FJ. (2017) Fast litho-panspermia in the habitable zone of the TRAPPIST-1 system, DOI:10.48550/arxiv.1704.01411.
• Krijt S, Bowling TJ, Lyons RJ, Ciesla FJ. (2017) Fast Litho-panspermia in the Habitable Zone of the TRAPPIST-1 System, The Astrophysical Journal Letters, volume 839, no. 2, pages L21-L21, DOI:10.3847/2041-8213/aa6b9f. [PDF]

2016

• Krijt S, Ciesla FJ. (2016) Dust diffusion and settling in the presence of collisions: Trapping (sub)micron grains in the midplane, DOI:10.48550/arxiv.1603.02630.
• Pascucci I, Testi L, Herczeg GJ, Long F, Manara CF, Hendler N, Mulders GD, Krijt S, Ciesla F, Henning T. (2016) A Steeper than Linear Disk Mass-Stellar Mass Scaling Relation, DOI:10.48550/arxiv.1608.03621.
• Krijt S, Ciesla FJ, Bergin EA. (2016) Tracing water vapor and ice during dust growth, DOI:10.48550/arxiv.1610.06463.
• Krijt S, Ormel CW, Dominik C, Tielens AGGM. (2016) A panoptic model for planetesimal formation and pebble delivery, Astronomy & Astrophysics, volume 586, pages A20-A20, DOI:10.1051/0004-6361/201527533. [PDF]
• Krijt S, Ciesla FJ. (2016) DUST DIFFUSION AND SETTLING IN THE PRESENCE OF COLLISIONS: TRAPPING (SUB)MICRON GRAINS IN THE MIDPLANE, The Astrophysical Journal, volume 822, no. 2, pages 111-111, DOI:10.3847/0004-637x/822/2/111. [PDF]
• Pascucci I, Testi L, Herczeg GJ, Long F, Manara CF, Hendler N, Mulders GD, Krijt S, Ciesla F, Henning T. (2016) A STEEPER THAN LINEAR DISK MASS–STELLAR MASS SCALING RELATION, The Astrophysical Journal, volume 831, no. 2, pages 125-125, DOI:10.3847/0004-637x/831/2/125. [PDF]
• Krijt S, Ciesla FJ, Bergin EA. (2016) TRACING WATER VAPOR AND ICE DURING DUST GROWTH, The Astrophysical Journal, volume 833, no. 2, pages 285-285, DOI:10.3847/1538-4357/833/2/285. [PDF]

2015

• Krijt S, Ormel CW, Dominik C, Tielens AGGM. (2015) A panoptic model for planetesimal formation and pebble delivery, DOI:10.48550/arxiv.1511.07762.
• Krijt S, Ormel CW, Dominik C, Tielens AGGM. (2015) Erosion and the limits to planetesimal growth, Astronomy & Astrophysics, volume 574, pages A83-A83, DOI:10.1051/0004-6361/201425222. [PDF]

2014

• Krijt S, Kama M. (2014) A dearth of small particles in debris disks: An energy-constrained smallest fragment size, DOI:10.48550/arxiv.1405.6834.
• Ochsendorf BB, Cox NLJ, Krijt S, Salgado F, Berné O, Bernard JP, Kaper L, Tielens AGGM. (2014) Blowing in the wind: The dust wave surrounding $\sigma$ Ori AB, DOI:10.48550/arxiv.1401.7185.
• Krijt S, Ormel CW, Dominik C, Tielens AGGM. (2014) Erosion and the limits to planetesimal growth, DOI:10.48550/arxiv.1412.3593.
• Ochsendorf BB, Cox NLJ, Krijt S, Salgado F, Berné O, Bernard JP, Kaper L, Tielens AGGM. (2014) Blowing in the wind: The dust wave aroundσOrionis AB, Astronomy & Astrophysics, volume 563, pages A65-A65, DOI:10.1051/0004-6361/201322873. [PDF]
• Krijt S, Dominik C, Tielens AGGM. (2014) Rolling friction of adhesive microspheres, Journal of Physics D: Applied Physics, volume 47, no. 17, pages 175302-175302, DOI:10.1088/0022-3727/47/17/175302. [PDF]
• Krijt S, Kama M. (2014) A dearth of small particles in debris disks, Astronomy & Astrophysics, volume 566, pages L2-L2, DOI:10.1051/0004-6361/201423862. [PDF]

2013

• Seizinger A, Krijt S, Kley W. (2013) Erosion of dust aggregates, DOI:10.48550/arxiv.1310.4311.
• Krijt S, Güttler C, Heißelmann D, Dominik C, Tielens AGGM. (2013) Energy dissipation in head-on collisions of spheres, Journal of Physics D: Applied Physics, volume 46, no. 43, pages 435303-435303, DOI:10.1088/0022-3727/46/43/435303. [PDF]
• Seizinger A, Krijt S, Kley W. (2013) Erosion of dust aggregates, Astronomy & Astrophysics, volume 560, pages A45-A45, DOI:10.1051/0004-6361/201322773. [PDF]

2012

• Güttler C, Heißelmann D, Blum J, Krijt S. (2012) Normal Collisions of Spheres: A Literature Survey on Available Experiments, DOI:10.48550/arxiv.1204.0001.

2011

• Krijt S, Dominik C. (2011) Stirring up the dust: A dynamical model for halo-like dust clouds in transitional disks, DOI:10.48550/arxiv.1105.5328.
• Krijt S, Dominik C. (2011) Stirring up the dust: a dynamical model for halo-like dust clouds in transitional disks, Astronomy & Astrophysics, volume 531, pages A80-A80, DOI:10.1051/0004-6361/201116757. [PDF]

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