Nikolaj Bjerregaard Sillassen

Emailnbsispace.dtudk
Websitehttp://www.space.dtu.dk

Elektrovej, 327, 211
2800 Kgs. Lyngby
Denmark

Profile

PhD Student in extragalactic astronomy under the supervision of Prof. Georgios E. Magdis and Dr. Shuowen Jin.

My main research focus is the evolution of galaxy protoclusters, dusty galaxies and galaxies in general. I discovered and published a paper on the galaxy protocluster candidate HPC1001, as a part of my master of science in engineering degree from the Technical University of Denmark.

Education/Academic qualification

M.Sc. Eng., Space Research - Earth and Space Physics and Engineering, Technical University of Denmark

30 Aug 2021 → 28 Jun 2023

Award Date: 28 Jun 2023

B.Sc. Eng., Earth and Space Physics in Engineering, Technical University of Denmark

3 Sept 2018 → 1 Jun 2021

Award Date: 5 Jun 2021

Keywords

User defined:
Astrophysics
Astrophysics of galaxies
Galaxy evolution
Galaxy protoclusters

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Cosmic Vine: High abundance of massive galaxies and dark matter halos in a forming cluster at z = 3.44
Sillassen, N. B., Jin, S., Magdis, G. E., Valentino, F., Daddi, E., Gobat, R., Brinch, M., Ito, K., Wang, T., Sun, H., Brammer, G., Toft, S. & Greve, T. R., 2026, In: Astronomy and Astrophysics. 706, 11 p., A344.
Research output: Contribution to journal › Journal article › Research › peer-review

Open Access
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19 Downloads (Orbit)
Behind the dust veil: A panchromatic view of an optically dark galaxy at z = 4.82
Sillassen, N. B., Jin, S., Magdis, G. E., Hodge, J., Gobat, R., Daddi, E., Knudsen, K., Finoguenov, A., Schinnerer, E., Wang, W. H., Gao, Z. K., Weaver, J. R., Algera, H., Andika, I. T., Brinch, M., Chen, C. C., Cochrane, R., Enia, A., Faisst, A. & Gillman, S. & 13 others, Gomez-Guijarro, C., Gozaliasl, G., Hayward, C., Kokorev, V., Merchant, M., Rizzo, F., Talia, M., Valentino, F., Blánquez-Sesé, D., Koekemoer, A. M., Magnelli, B., Rich, M. & Shuntov, M., 2025, In: Astronomy and Astrophysics. 693, A309.
Research output: Contribution to journal › Journal article › Research › peer-review

Open Access
Ly-alpha emission reveals two satellite halos around massive groups at z ∼ 3: The puzzling case of a quiescent central galaxy
Guo, S., Daddi, E., Gobat, R., Sillassen, N. B., D’Eugenio, C., Michael Rich, R., Elias, G., Aravena, M., Bruckmann, F., Correa, C., Delvecchio, I., Elbaz, D., Gallego, S. G., Gentile, F., Jin, S., Kalita, B. S., Neill, J. D., Solimano, M., Valentino, F. & Wang, T., 2025, In: Astronomy and Astrophysics. 704, 19 p., A340.
Research output: Contribution to journal › Journal article › Research › peer-review

Open Access
File
7 Downloads (Orbit)
Noema formIng Cluster survEy (NICE): A census of star formation and cold gas properties in massive protoclusters at 1.5 < z < 4
Zhou, L., Wang, T., Daddi, E., Coogan, R., Sun, H., Xu, K., Arumugam, V., Jin, S., Liu, D., Lu, S., Sillassen, N., Guo, S., Elias, G., Wang, Y., Shi, Y., Zhang, Z. Y., Tan, Q., Gu, Q., Elbaz, D. & Henry, A. & 19 others, Magnelli, B., Gómez-Guijarro, C., D’Eugenio, C., Magdis, G. E., Valentino, F., Ji, Z., Gobat, R., Delvecchio, I., Xiao, M., Strazzullo, V., Finoguenov, A., Schinnerer, E., Michael Rich, R., Huang, J., Dai, Y., Chen, Y., Gao, F., Yang, T. & Hao, Q., 2025, In: Astronomy and Astrophysics. 701, 11 p., A234.
Research output: Contribution to journal › Journal article › Research › peer-review

Open Access
File
8 Downloads (Orbit)
Revealing the hidden cosmic feast: A z = 4.3 galaxy group hosting two optically dark, efficiently star-forming galaxies
Brinch, M., Jin, S., Gobat, R., Sillassen, N. B., Algera, H., Gillman, S., Greve, T. R., Gomez-Guijarro, C., Gullberg, B., Hodge, J., Lee, M., Liu, D., Magdis, G. & Valentino, F., 2025, In: Astronomy and Astrophysics. 694, 15 p., A218.
Research output: Contribution to journal › Journal article › Research › peer-review

Open Access
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69 Downloads (Orbit)

Unveiling the physics of galaxies and structure assembly in the early Universe
Sillassen, N. B. (PhD Student), Magdis, G. (Main Supervisor), Jin, S. (Supervisor) & Knudsen, K. (Supervisor)
01/10/2023 → 30/09/2026
Project: PhD

Ripe Fruits on the Cosmic Vine: What Massive Quiescent Galaxies at z>3 Reveal about Cluster Formation
Jin, S. (Creator) & Sillassen, N. B. (Contributor), Zenodo, 26 Jun 2024
DOI: 10.5281/zenodo.12547530, https://zenodo.org/records/12547530
Dataset
NOEMA formIng Cluster survEy (NICE): forming clusters at 1.5 < z < 4
Sillassen, N. B. (Creator), Jin, S. (Creator), Magdis, G. (Creator), Daddi, E. (Creator) & Wang, T. (Creator), Zenodo, 25 Jun 2024
DOI: 10.5281/zenodo.12516808, https://zenodo.org/records/12516808
Dataset

Nikolaj Bjerregaard Sillassen

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Education/Academic qualification

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Collaborations and top research areas from the last five years

Dive into details

Cosmic Vine: High abundance of massive galaxies and dark matter halos in a forming cluster at z = 3.44

Behind the dust veil: A panchromatic view of an optically dark galaxy at z = 4.82

Ly-alpha emission reveals two satellite halos around massive groups at z ∼ 3: The puzzling case of a quiescent central galaxy

Noema formIng Cluster survEy (NICE): A census of star formation and cold gas properties in massive protoclusters at 1.5 < z < 4

Revealing the hidden cosmic feast: A z = 4.3 galaxy group hosting two optically dark, efficiently star-forming galaxies

Unveiling the physics of galaxies and structure assembly in the early Universe

Ripe Fruits on the Cosmic Vine: What Massive Quiescent Galaxies at z>3 Reveal about Cluster Formation

NOEMA formIng Cluster survEy (NICE): forming clusters at 1.5 < z < 4

Nikolaj Bjerregaard Sillassen

Personal profile

Profile

Education/Academic qualification

Keywords

Fingerprint

Collaborations and top research areas from the last five years

Publications

Projects

Datasets