Nikolaj B. Sillassen

DAWN Center for Independent Living — United States

Physics and Astronomy · Physical Sciences

7h-index134citations24works5.12yr avg
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Research Topics

Galaxies: Formation, Evolution, Phenomena(20), Astronomy and Astrophysical Research(17), Stellar, planetary, and galactic studies(8), Astrophysics and Star Formation Studies(5), Gamma-ray bursts and supernovae(4)

Publications24 total

Cosmic Vine: High abundance of massive galaxies and dark matter halos in a forming cluster at <i>z</i>  = 3.44
Astronomy and Astrophysics·2026Open Access
ECOGAL I. Project design and the first catalogue
arXiv (Cornell University)·2025Open Access
The Bigfoot: A Footprint of a Coma Cluster Progenitor at <i>z</i> = 3.98
The Astrophysical Journal Letters·2025· 1 citedOpen Access
Ly-alpha emission reveals two satellite halos around massive groups at z ~ 3: the puzzling case of a quiescent central galaxy
arXiv (Cornell University)·2025Open Access
The Bigfoot: A footprint of a Coma cluster progenitor at z=3.98
arXiv (Cornell University)·2025Open Access
Noema formIng Cluster survEy (NICE): A census of star formation and cold gas properties in massive protoclusters at 1.5 &lt; <i>z</i> &lt; 4
Astronomy and Astrophysics·2025Open Access
Revealing the hidden cosmic feast: A
Springer Link (Chiba Institute of Technology)·2025
Revealing the hidden cosmic feast: A <i>z</i> = 4.3 galaxy group hosting two optically dark, efficiently star-forming galaxies
Astronomy and Astrophysics·2025· 4 citedOpen Access
Revealing the hidden cosmic feast: A z=4.3 galaxy group hosting two optically dark, efficiently star-forming galaxies
arXiv (Cornell University)·2025Open Access
Behind the dust veil: A panchromatic view of an optically dark galaxy at <i>z</i> = 4.82
Astronomy and Astrophysics·2025· 2 citedOpen Access
Behind the dust veil: A panchromatic view of an optically dark galaxy at z=4.82
arXiv (Cornell University)·2024Open Access
A photo-<i>z</i> cautionary tale: Redshift confirmation of COSBO-7 at <i>z</i> = 2.625
Astronomy and Astrophysics·2024· 17 citedOpen Access
NOEMA formIng Cluster survEy (NICE): Characterizing eight massive galaxy groups at 1.5  &lt;  <i>z</i>  &lt;  4 in the COSMOS field
Astronomy and Astrophysics·2024· 13 citedOpen Access
NOEMA formIng Cluster survEy (NICE): Characterizing eight massive galaxy groups at $1.5 &lt; z &lt; 4$ in the COSMOS field
arXiv (Cornell University)·2024Open Access
Noema formIng Cluster survEy (NICE): Discovery of a starbursting galaxy group with a radio-luminous core at <i>z</i> = 3.95
Astronomy and Astrophysics·2024· 16 citedOpen Access
Cosmic Vine: A <i>z</i> = 3.44 large-scale structure hosting massive quiescent galaxies
Astronomy and Astrophysics·2024· 28 citedOpen Access
Cosmic Vine: A z=3.44 large-scale structure hosting massive quiescent galaxies
arXiv (Cornell University)·2023Open Access
<i>DEIMOS</i> spectroscopy of <i>z</i> = 6 protocluster candidate in COSMOS – a massive protocluster embedded in a large-scale structure?
Monthly Notices of the Royal Astronomical Society·2023· 16 citedOpen Access
DEIMOS spectroscopy of $z=6$ protocluster candidate in COSMOS -- A massive protocluster embedded in a large scale structure?
arXiv (Cornell University)·2023Open Access
Noema formIng Cluster survEy (NICE): Discovery of a starbursting galaxy group with a radio-luminous core at z=3.95
arXiv (Cornell University)·2023· 1 citedOpen Access
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Frequent Co-authors

Shuowen Jin(22), Francesco Valentino(20), G. Magdis(19), Carlos Gómez-Guijarro(14), Malte Brinch(13), Steven Gillman(13), T. R. Greve(12), R. Gobat(11), Minju Lee(10), E. Daddi(10), Marko Shuntov(9), Gabriel Brammer(9), Vasily Kokorev(9), B. Magnelli(9), Daizhong Liu(9), Sune Toft(8), David Blánquez-Sesé(8), Eva Schinnerer(8), D. Elbaz(8), Luwenjia Zhou(7)