prof. dr. L.V.E. (Léon) Koopmans

Hoogleraar op het Kapteyn Instituut

Faculteit Science and Engineering

Telefoon:

050 36 36519

050 36 34073 (Secretariaat)

E-mail:

l.v.e.koopmans rug.nl

Homepage ORCID Research Portal

Publicaties

Automation of finding strong gravitational lenses in the Kilo Degree Survey with U-DenseLens (DenseLens + Segmentation)

Nagam, B. C., Koopmans, L. V. E., Valentijn, E. A., Kleijn, G. V., de Jong, J. T. A., Napolitano, N., Li, R., Tortora, C., Busillo, V. & Dong, Y., 24-jan.-2025, (Submitted) 16 blz. (ArXiv).

Onderzoeksoutput: Voordruk ›

Beyond the horizon: Quantifying the full sky foreground wedge in the cylindrical power spectrum

Munshi, S., Mertens, F. G., Koopmans, L. V. E., Offringa, A. R., Ceccotti, E., Brackenhoff, S. A., Chege, J. K., Gehlot, B. K., Ghosh, S., Höfer, C. & Mevius, M., dec.-2025, In: Astronomy & Astrophysics. 693, 20 blz., A276.

Onderzoeksoutput › › peer review

CASCO: Cosmological and AStrophysical parameters from Cosmological simulations and Observations: II. Constraining cosmology and astrophysical processes with early- and late-type galaxies

Busillo, V., Tortora, C., Covone, G., Koopmans, L. V. E., Silvestrini, M. & Napolitano, N. R., jan.-2025, In: Astronomy & Astrophysics. 693, 20 blz., A112.

Onderzoeksoutput › › peer review

Euclid: Finding strong gravitational lenses in the Early Release Observations using convolutional neural networks

Euclid Collaboration, Nagam, B. C., Barroso, J. A. A., Wilde, J., Andika, I. T., Manjón-García, A., Pearce-Casey, R., Stern, D., Kleijn, G. V., Koopmans, L. V. E., Valentijn, E. A., Vernardos, G., Corcho-Caballero, P., Branchini, E., George, K., Kuijken, K., Laureijs, R. & Tsyganov, A., 13-feb.-2025, (Submitted) arXiv, 14 blz.

Onderzoeksoutput: Voordruk ›

Finding black holes: an unconventional multi-messenger

Uronen, L. E., Li, T., Janquart, J., Phurailatpam, H., Poon, J., Wempe, E., Koopmans, L. & Hannuksela, O., 10-apr.-2025, In: Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences. 383, 2294, 20240152.

Onderzoeksoutput › peer review

Galaxy-Galaxy Strong Lensing with U-Net (GGSL-UNet). I. Extracting Two-dimensional Information from Multiband Images in Ground and Space Observations

Zhong, F., Luo, R., Napolitano, N. R., Tortora, C., Li, R., Zhu, X., Busillo, V., Koopmans, L. V. E. & Longo, G., mrt.-2025, In: Astrophysical Journal, Supplement Series. 277, 1, 24 blz., 12.

Onderzoeksoutput › › peer review

Reducing false positives in strong lens detection through effective augmentation and ensemble learning

Rezaei, S., Chegeni, A., Nagam, B. C., McKean, J. P., Baratchi, M., Kuijken, K. & Koopmans, L. V. E., 1-apr.-2025, In: Monthly Notices of the Royal Astronomical Society. 538, 2, blz. 1081-1095 15 blz.

Onderzoeksoutput › › peer review

Using Convolutional Neural Networks to Search for Strongly Lensed Quasars in KiDS DR5

He, Z., Li, R., Shu, Y., Tortora, C., Er, X., Cañameras, R., Schuldt, S., Napolitano, N. R., Bharath Chowdhary, N., Chen, Q., Li, N., Feng, H., Deng, L., Li, G., Koopmans, L. V. E. & Dvornik, A., 10-mrt.-2025, In: Astrophysical Journal. 981, 2, 16 blz., 168.

Onderzoeksoutput › › peer review

21-cm signal from the Epoch of Reionization: a machine learning upgrade to foreground removal with Gaussian process regression

Acharya, A., Mertens, F., Ciardi, B., Ghara, R., Koopmans, L. V. E., Giri, S. K., Hothi, I., Ma, Q. B., Mellema, G. & Munshi, S., 1-jan.-2024, In: Monthly Notices of the Royal Astronomical Society. 527, 3, blz. 7835-7846 12 blz.

Onderzoeksoutput › › peer review

Automation of finding strong gravitational lenses in the Kilo Degree Survey with U – DenseLens (DenseLens + Segmentation)

Chowdhary, B. N., Koopmans, L. V. E., Valentijn, E. A., Kleijn, G. V., de Jong, J. T. A., Napolitano, N., Li, R., Tortora, C., Busillo, V. & Dong, Y., sep.-2024, In: Monthly Notices of the Royal Astronomical Society. 533, 2, blz. 1426-1441 16 blz.

Onderzoeksoutput › › peer review