311 citations · 797 across the 14 of their papers we have counts for
13 papers
Alignments Between Galaxies and the Cosmic Web at in the IllustrisTNG Simulations
Benjamin Zhang, Khee-Gan Lee, Alex Krolewski +3
Galaxy formation theories predict that galaxy shapes and angular momenta have non-random alignments with the cosmic web. This leads to so-called intrinsic alignment between pairs o…
Constraining the Fluctuating Gunn-Peterson Approximation Using Lyman- Forest Tomography at
Robin Kooistra, Khee-Gan Lee, Benjamin Horowitz
The fluctuating Gunn-Peterson approximation (FGPA) is a commonly-used method to generate mock Lyman- (Ly) forest absorption skewers at Cosmic Noon () from the mat…
Detecting preheating in proto-clusters with Lyman- Forest Tomography
Robin Kooistra, Shigeki Inoue, Khee-Gan Lee +2
Studies of low redshift galaxy clusters suggest the intra-cluster medium (ICM) has experienced non-gravitational heating during the formation phase of the clusters. Using simple ph…
TARDIS Paper II: Synergistic Density Reconstruction from Lyman-alpha Forest and Spectroscopic Galaxy Surveys with Applications to Protoclusters and the Cosmic Web
Benjamin Horowitz, Benjamin Zhang, Khee-Gan Lee +1
In this work we expand upon the Tomographic Absorption Reconstruction and Density Inference Scheme (TARDIS) in order to include multiple tracers while reconstructing matter density…
Improved upper limits on the 21-cm signal power spectrum of neutral hydrogen at from LOFAR
F. G. Mertens, M. Mevius, L. V. E Koopmans +23
A new upper limit on the 21-cm signal power spectrum at a redshift of is presented, based on 141 hours of data obtained with the Low-Frequency Array (LOFAR). The an…
Constraining the intergalactic medium at 9.1 using LOFAR Epoch of Reionization observations
R. Ghara, S. K. Giri, G. Mellema +19
We derive constraints on the thermal and ionization states of the intergalactic medium (IGM) at redshift 9.1 using new upper limits on the 21-cm power spectrum measured b…
Detecting the neutral IGM in filaments with the SKA
Robin Kooistra, Marta B. Silva, Saleem Zaroubi +3
The intergalactic medium (IGM) plays an important role in the formation and evolution of galaxies. Recent developments in upcoming radio telescopes are starting to open up the poss…
The first power spectrum limit on the 21-cm signal of neutral hydrogen during the Cosmic Dawn at z=20-25 from LOFAR
B. K. Gehlot, F. G. Mertens, L. V. E. Koopmans +19
Observations of the redshifted 21-cm hyperfine line of neutral hydrogen from early phases of the Universe such as Cosmic Dawn and the Epoch of Reionization promise to open a new wi…
Tomographic Intensity Mapping versus Galaxy Surveys: Observing the Universe in H-alpha emission with new generation instruments
Marta B. Silva, Saleem Zaroubi, Robin Kooistra +1
The H-alpha line emission is an important probe for a number of fundamental quantities in galaxies, including their number density, star formation rate (SFR) and overall gas conten…
Filament Hunting: Integrated HI 21cm Emission From Filaments Inferred by Galaxy Surveys
Robin Kooistra, Marta B. Silva, Saleem Zaroubi
Large scale filaments, with lengths that can reach tens of Mpc, are the most prominent features in the cosmic web. These filaments have only been observed indirectly through the po…
Radial decoupling of small and large dust grains in the transitional disk RX J1615.3-3255
Robin Kooistra, Inga Kamp, Misato Fukagawa +56
We present H-band (1.6 μm) scattered light observations of the transitional disk RX J1615.3-3255, located in the ~1 Myr old Lupus association. From a polarized intensity image, tak…
Mapping the low surface brightness Universe in the UV band with Lya emission from IGM filaments
Marta B. Silva, Robin Kooistra, Saleem Zaroubi
A large fraction of the baryonic matter in the Universe is located in filaments in the intergalactic medium. However, the low surface brightness of these filaments has not yet allo…
Galactic interstellar filaments as probed by LOFAR and Planck
S. Zaroubi, V. Jelić, A. G. de Bruyn +13
Recent Low Frequency Array (LOFAR) observations at 115-175 MHz of a field at medium Galactic latitudes (centered at the bright quasar 3C196) have shown striking filamentary structu…