Logan Francis
Postdoctoral researcher
- Name
- Dr. L.K.S. Francis
- Telephone
- 071 5272727
- francis@strw.leidenuniv.nl
Postdoctoral researcher
- Faculty of Science
- Sterrewacht
- Observatory Research
- Astrochemical Planet Formation
- Sewiło M., Rocha W.R.M., Gelder M. van, Navarro M.G., Charnley S.B., Jin M., Oliveira J.M., Loon J.T. van, Francis L., Wiseman J., Indebetouw R., Chen C.-H.R., Hamedani Golshan R. & Qasim D. (2025), Protostars at subsolar metallicity: First detection of large solid-state complex organic molecules in the Large Magellanic Cloud, Astrophysical Journal Letters 992(2): L30.
- Oya Y., Saiga E., Miotello A., Koutoulaki M., Johnstone D., Ceccarelli C., Chandler C.J., Codella C., Sakai N., Bianchi E., Bouvier M., Charnley S., Cuello N., De Simone M., Francis L., Hanawa T., Jiménez-Serra I., Loinard L., Menard F., Sabatini G., Vastel C., Zhang Z., Aikawa Y., Alves F.O., Balucani N., Busquet G., Caselli P., Caux E., Choudhury S., Dulieu F., Durán A., Evans L., Fedele D., Feng S., Fontani F., Hama T., Herbst E., Hirano S., Hirota T., Isella A., Kahane C., Lefloch B., Le Gal R., Liu H.B., López-Sepulcre A., Maud L.T., Maureira M.J., Mercimek S., Moellenbrock G., Mori S., Nomura H., Oba Y., O'Donoghue R., Ohashi S., Okoda Y., Ospina-Zamudio J., Pineda J., Podio L., Rimola A., Sakai T., Segura-Cox D., Shirley Y., Svoboda B., Testi L., Viti S., Watanabe N., Watanabe Y., Zhang Y. & Yamamoto S. (2025), Evidence for jet/outflow shocks heating the environment around the Class I protostellar source Elias 29: FAUST XXI, The Astrophysical Journal 980(2): 263.
- Assani K.D., Li Z.-Y., Ramsey J.P., Tychoniec Ł., Francis L., Le Gouellec V.J.M., Caratti o Garatti A., Giannini T., McClure M., Bjerkeli P., Calcutt H., Beuther H., Devaraj R., Liu X., Plunkett A., Navarro M.G., Dishoeck E.F. van & Harsono D. (2025), Mid-infrared extinction curve for protostellar envelopes from JWST-detected embedded jet emission: the case of TMC1A, Astronomy and Astrophysics 701: A175.
- Dishoeck E.F. van, Tychoniec Ł., Rocha W.R.M., Slavicinska K., Francis L., Gelder M.L. van, Ray T.P., Beuther H., Caratti o Garatti A., Brunken N.G.C., Chen Y., Devaraj R., Geers V.C., Gieser C., Greene T.P., Justtanont K., Le Gouellec V.J.M., Kavanagh P.J., Klaassen P.D., Janssen A.G.M., Navarro M.G., Nazari P., Notsu S., Perotti G., Ressler M.E., Reyes S.D., Sellek A.D., Tabone B., Tap C., Theijssen N.C.M.A., Colina L., Güdel M., Henning T., Lagage P.-O., Östlin G., Vandenbussche B. & Wright G.S. (2025), JWST Observations of Young protoStars (JOYS): overview of program and early results, Astronomy and Astrophysics 699: A361.
- Skretas I.M., Karska A., Francis L., Rocha W.R.M., Gelder M.L. van, Tychoniec Ł., Figueira M., Sewiło M., Wyrowski F. & Schilke P. (2025), UV-irradiated outflows from low-mass protostars in Ophiuchus with JWST/MIRI, Astronomy and Astrophysics 703: A139.
- Francis L. (2025), The [D/H] abundance derived from protostellar outflows across the Galactic disk measured with JWST, Towards New Frontiers: The Astrochemical Journey From Young Stellar Nurseries to Exoplanets. Towards New Frontiers: The Astrochemical Journey From Young Stellar Nurseries to Exoplanets 10 March 2025 - 14 March 2025. Geneva: Zenodo. 30.
- Le Gouellec V.J.M., Lew B.W.P., Greene T.P., Johnstone D., Gusdorf A., Francis L., DeWitt C., Meyer M., Tychoniec Ł., Dishoeck E.F. van, Barsony M., Hodapp K.W., Martin P.G. & Robberto M. (2025), Unveiling two deeply embedded young protostars in the S68N class 0 protostellar core with JWST/NIRSpec, The Astrophysical Journal 985(2): 225.
- Okoda Y., Yang Y.-L., Evans N.J., Kim J., Jin M., Garrod R.T., Francis LK.S., Johnstone D., Ceccarelli C., Codella C., Chandler C.J., Yamamoto S. & Sakai N. (2025), CORINOS. III. Outflow shocked regions of the low-mass protostellar source IRAS 15398--3359 with JWST and ALMA, The Astrophysical Journal 982(2): 149.
- Blakely D., Johnstone D., Cugno G., Sivaramakrishnan A., Tuthill P., Dong R., Pope B.J.S., Albert L., Charles M., Cooper R.A., De Furio M., Desdoigts L., Doyon R., Francis L., Greenbaum A.Z., Lafrenière D., Lloyd J.P., Meyer M.R., Pueyo L., Ray S., Sánchez-Bermúdez J., Soulain A., Thatte D., Thompson W. & Vandal T. (2025), The James Webb Interferometer: Space-based interferometric detections of PDS 70 b and c at 4.8 μm, Astronomical Journal 169(3): 137.
- Francis L., Dishoeck E.F. van, Caratti o Garatti A., Gelder M.L. van, Gieser C., Beuther H., Ray T.P., Tychoniec L., Nazari P., Reyes S., Kavanagh P.J., Klaassen P., Güdel M. & Henning T. (2025), JOYS: The [D/H] abundance derived from protostellar outflows across the Galactic disk measured with JWST, Astronomy and Astrophysics 694: A174.
- McClure M.K., van't Hoff M., Francis L., Bergin E., Rocha W.R.M., Sturm J.A., Harsono D., Dishoeck E.F. van, Black J.H., Noble J.A., Qasim D. & Dartois E. (2025), Refractory solid condensation detected in an embedded protoplanetary disk, Nature 643(8072): 649-653.
- Chen Y., Monteiro Rocha W.R., Dishoeck E.F. van, Gelder M.L. van, Nazari P., Slavicinska K., Francis L.K.S., Tabone B., Ressler M.E., Klaassen P.D., Beuther H., Boogert A.C.A., Gieser C., Kavanagh P.J., Perotti G., Le Gouellec V.J.M., Majumdar L., Güdel M. & Henning T. (2024), JOYS+: The link between the ice and gas of complex organic molecules: comparing JWST and ALMA data of two low-mass protostars, Astronomy and Astrophysics 690: A205.
- Chen Y., Rocha W., Dishoeck E.F. van, Nazari P., Gelder M.L. van, Francis L.K.S., Slavicinska K., Ressler M., Tabone B. & Monteiro Rocha W.R. (2024), Tracing complex organic molecules (COMs) from ice to gas with JWST and ALMA, EAS2024, European Astronomical Society annual meeting. EAS2024, European Astronomical Society Annual Meeting 1 July 2024 - 5 July 2024. Padova, Italy 1013.
- Caratti o Garatti A., Ray T.P., Kavanagh P.J., McCaughrean M.J., Gieser C., Giannini T., Dishoeck E.F. van, Justtanont K., Gelder M.L. van, Francis L.K.S., Beuther H., Tychoniec Ł., Nisini B., Navarro M.G., Devaraj R., Reyes S., Nazari P., Klaassen P., Güdel M., Henning T., Lagage P.O., Östlin G., Vandenbussche B., Waelkens C. & Wright G. (2024), JWST Observations of Young protoStars (JOYS): HH211: Textbook case of a protostellar jet and outflow, Astronomy and Astrophysics 691: A134.
- Francis L.K.S. (2024), The molecular and atomic component of outflows from protostars probed by JWST/MIRI, EAS2024, European Astronomical Society annual meeting. EAS2024, European Astronomical Society Annual Meeting 1 July 2024 - 5 July 2024 1966.
- Francis L.K.S., Gelder M.L. van, Dishoeck E.F. van, Gieser C., Beuther H., Tychoniec L., Perotti G., Caratti o Garatti A., Kavanagh P.J., Ray T., Klaassen P., Justtanont K., Linnartz H.V.J., Rocha W.R.M., Slavicinska K., Güdel M., Henning T., Lagage P.-O. & Östlin G. (2024), JOYS: MIRI/MRS spectroscopy of gas-phase molecules from the high-mass star-forming region IRAS 23385+6053, Astronomy and Astrophysics 683: A249.
- Gelder M.L. van, Francis L.K.S., Dishoeck E.F. van, Tychoniec L., Ray T.P., Beuther H., Caratti o Garatti A., Chen Y., Devaraj R., Gieser C., Justtanont K., Kavanagh P.J., Nazari P., Reyes S., Monteiro Rocha W.R., Slavicinska K., Güdel M., Henning T., Lagage P.-O. & Wright G. (2024), JWST Observations of Young protoStars (JOYS): overview of gaseous molecular emission and absorption in low-mass protostars, Astronomy and Astrophysics 692: A197.
- Gelder M.L. van, Francis L.K.S., Tychoniec L. & Dishoeck E.F. van (2024), Unveiling the molecular gas composition in young protostellar systems with JWST/MIRI, EAS2024, European Astronomical Society annual meeting. EAS2024, European Astronomical Society Annual Meeting 1 July 2024 - 5 July 2024 1704.
- Gelder M.L. van, Ressler M.E., Dishoeck E.F. van, Nazari P., Tabone B., Black J.H., Tychoniec Ł., Francis L.K.S., Barsony M., Beuther H., Caratti o Garatti A., Chen Y., Gieser C., le Gouellec V.J.M., Kavanagh P.J., Klaassen P.D., Lew B.W.P., Linnartz H.V.J., Majumdar L., Perotti G. & Monteiro Rocha W.R. (2024), JOYS+: Mid-infrared detection of gas-phase SO2 emission in a low-mass protostar: The case of NGC 1333 IRAS 2A: Hot core or accretion shock?, Astronomy and Astrophysics 682: A78.
- Monteiro Rocha W.R., Dishoeck E.F. van, McClure M.K., Gelder M.L. van, Francis L.K.S., Brunken N.G.C., Slavicinska K., Tychoniec Ł. & Sturm J.A. (2024), Where it all begins: protostars contain the icy ingredients crucial for the genesis of habitable planets, EAS2024, European Astronomical Society annual meeting. EAS2024, European Astronomical Society Annual Meeting 1 July 2024 - 5 July 2024. Padova.
- Monteiro Rocha W.R., Dishoeck E.F. van, Ressler M.E., Gelder M.L. van, Slavicinska K., Brunken N.G.C., Linnartz H.V.J., Ray T.P., Beuther H., Caratti o Garatti A., Geers V., Kavanagh P.J., Klaassen P.D., Justtanont K., Chen Y., Francis L.K.S., Gieser C., Perotti G., Tychoniec Ł., Barsony M., Majumdar L., le Gouellec V.J.M., Chu L.E.U., Lew B.W.P., Henning T. & Wright G. (2024), JWST Observations of Young protoStars (JOYS+): Detecting icy complex organic molecules and ions: I. CH4, SO2, HCOO−, OCN−, H2CO, HCOOH, CH3CH2OH, CH3CHO, CH3OCHO, and CH3COOH, Astronomy & Astrophysics 683: A124.
- Rota A.A., Meijerhof J.D., Marel N. van der, Francis L.K.S., Tak F.F.S. van der & Sellek A.D. (2024), A correlation between accretion rate and free-free emission in protoplanetary disks, EAS2024, European Astronomical Society Annual Meeting. EAS2024, European Astronomical Society Annual Meeting 1 July 2024 - 5 July 2024. Padova 170.
- Rota A.A., Meijerhof J.D., Marel N. van der, Francis L.K.S., van der Tak F.F.S. & Sellek A.D. (2024), Correlation between accretion rate and free-free emission in protoplanetary disks: a multiwavelength analysis of central mm/cm emission in transition disks, Astronomy & Astrophysics 684: A134.
- Assani K.D., Harsono D., Ramsey J.P., Li Z.-Y., Bjerkeli P., Pontoppidan K.M., Tychoniec L., Calcutt H., Kristensen L.E., Jørgensen J.K., Plunkett A., Gelder M.L. van & Francis L.K.S. (2024), The asymmetric bipolar [Fe II] jet and H2 outflow of TMC1A resolved with the JWST NIRSpec integral field unit, Astronomy & Astrophysics 688: A26.
- Tychoniec L., Gelder M.L. van, Dishoeck E.F. van, Francis L.K.S., Monteiro Rocha W.R., Caratti o Garatti A., Beuther H., Gieser C., Justtanont K., Linnartz H.V.J., Le Gouellec V.J.M., Perotti G., Devaraj R., Tabone B., Ray T.P., Brunken N.G.C., Chen Y., Kavanagh P.J., Klaassen P., Slavicinska K., Güdel M. & Östlin G. (2024), JWST observations of young protoStars (JOYS): linked accretion and ejection in a Class I protobinary system, Astronomy & Astrophysics 687: A36.
- Brunken N.G.C., Dishoeck E.F. van, Slavicinska K., le Gouellec V.J.M., Monteiro Rocha W.R., Francis L.K.S., Tychoniec L., Gelder M.L. van, Navarro M.G., Boogert A.C.A., Kavanagh P.J., Nazari P., Greene T., Ressler M.E. & Majumdar L. (2024), JOYS+ study of solid-state 12C/13C isotope ratios in protostellar envelopes: observations of CO and CO2 ice with the James Webb Space Telescope, Astronomy and Astrophysics 692: A163.
- Ray T.P., McCaughrean M.J., Caratti o Garatti A., Kavanagh P.J., Justtanont K., Dishoeck E.F. van, Reitsma M., Beuther H., Francis L.K.S., Gieser C., Klaassen P., Perotti G., Tychoniec L., Gelder M.L. van, Colina L., Greve T.R., Güdel M., Henning T., Lagage P.O., Östlin G., Vandenbussche B., Waelkens C. & Wright G. (2023), Author correction: outflows from the youngest stars are mostly molecular, Nature 623(7985): E3-E3.
- Gieser C., Beuther H., Dishoeck E.F. van, Francis L.K.S., Gelder M.L. van, Tychoniec L., Kavanagh P.J., Perotti G., Caratti o Garatti A., Ray T.P., Klaassen P., Justtanont K., Linnartz H.V.J., Rocha W.R.M., Slavicinska K., Colina L., Güdel M., Henning T., Lagage P.-O., Östlin G., Vandenbussche B., Waelkens C. & Wright G. (2023), JOYS: Disentangling the warm and cold material in the high-mass IRAS 23385+6053 cluster, Astronomy and Astrophysics 679: A108.
- Ray T.P., McCaughrean M.J., Caratti o Garatti A., Kavanagh R.D., Justtanont K., Dishoeck E.F. van, Reitsma M., Beuther H., Francis L.K.S., Gieser C., Klaassen P., Perotti G., Tychoniec L., Gelder M.L. van, Colina L., Greve T.R., Güdel M., Henning T., Lagage P.O., Östlin G., Vandenbussche B., Waelkens C. & Wright G. (2023), Outflows from the youngest stars are mostly molecular, Nature 622: 48-52.
- Beuther H., Dishoeck E.F. van, Tychoniec L., Gieser C., Kavanagh P.J., Perotti G., Gelder M.L. van, Klaassen P., Caratti o Garatti A., Francis L., Monteiro Rocha W.R., Slavicinska K., Ray T., Justtanont K., Linnartz H.V.J., Waelkens C., Colina L., Greve T., Güdel M., Henning T., Lagage P.-O., Vandenbussche B., Östlin G. & Wright G. (2023), JWST Observations of Young protoStars (JOYS): outflows and accretion in the high-mass star-forming region IRAS 23385+6053, Astronomy and Astrophysics 673: A121.
- Dishoeck E.F. van, Grant S., Tabone B., Gelder M.L. van, Francis L.K.S., Tychoniec L., Bettoni G., Arabhavi A.M., Gasman D., Nazari P., Vlasblom M., Kavanagh P., Christiaens V., Klaassen P., Beuther H., Henning T. & Kamp I. (2023), The diverse chemistry of protoplanetary disks as revealed by JWST, Faraday Discussions 245: 52-79.