316 citations · 682 across the 17 of their papers we have counts for
17 papers
Bubble mapping with the Square Kilometer Array -- I. Detecting galaxies with Euclid, JWST, WFIRST and ELT within ionized bubbles in the intergalactic medium at z>6
Erik Zackrisson, Suman Majumdar, Rajesh Mondal +16
The Square Kilometer Array is expected to provide the first tomographic observations of the neutral intergalactic medium at redshifts z>6 and pinpoint the locations of individual i…
Nature and chemical abundances of a sample of Lyman- emitter objects at high redshift
O. L. Dors, B. Agarwal, G. F. Hagele +5
We built a grid of photoionization models and compiled already available observational emission line intensities () of confirmed star formation…
The onset of star formation 250 million years after the Big Bang
Takuya Hashimoto, Nicolas Laporte, Ken Mawatari +21
A fundamental quest of modern astronomy is to locate the earliest galaxies and study how they influenced the intergalactic medium a few hundred million years after the Big Bang. Th…
Detecting strongly lensed supernovae at z ~ 5-7 with LSST
Claes-Erik Rydberg, Daniel J. Whalen, Matteo Maturi +4
Supernovae (SNe) could be powerful probes of the properties of stars and galaxies at high redshifts in future surveys. Wide fields and longer exposure times are required to offset…
Metallicity evolution of direct collapse black hole hosts: CR7 as a case study
Bhaskar Agarwal, Jarrett L. Johnson, Sadegh Khochfar +4
In this study we focus on the Lyman- CR7 consisting of clump A that is host to a potential direct collapse black hole (DCBH), and two metal enriched star forming clum…
Lyman-Werner Escape Fractions from the First Galaxies
Anna T. P. Schauer, Bhaskar Agarwal, Simon C. O. Glover +6
Direct collapse black holes forming in pristine, atomically-cooling haloes at may act as the seeds of supermassive black holes (BH) at high redshifts. In order to…
A Multiply-Imaged z 6.3 Lyman Alpha Emitter candidate behind Abell 2261
Claes-Erik Rydberg, Adi Zitrin, Erik Zackrisson +6
While the Lyman- () emission line serves as an important tool in the study of galaxies at , finding Ly emitters (LAE) at significantly higher redsh…
A search for Population III galaxies in CLASH. I. Singly-imaged candidates at high redshift
Claes-Erik Rydberg, Erik Zackrisson, Adi Zitrin +6
Population III galaxies are predicted to exist at high redshifts and may be rendered sufficiently bright for detection with current telescopes when gravitationally lensed by a fore…
Metal-free galaxy candidates discovered in CLASH
Claes-Erik Rydberg
The first metals in the universe are expected to form in population III stars - primordial stars consisting entirely of hydrogen and helium. However, these stars have so far remain…
Detecting Ancient Supernovae at z ~ 5 - 12 with CLASH
Daniel J. Whalen, Joseph Smidt, Claes-Erik Rydberg +3
Supernovae are important probes of the properties of stars at high redshifts because they can be detected at early epochs and their masses can be inferred from their light curves.…
Hunting for dark halo substructure using submilliarcsecond-scale observations of macrolensed radio jets
Erik Zackrisson, Saghar Asadi, Kaj Wiik +8
Dark halo substructure may reveal itself through secondary, small-scale gravitational lensing effects on light sources that are macrolensed by a foreground galaxy. Here, we explore…
Detection of isolated population III stars with the James Webb Space Telescope
Claes-Erik Rydberg, Erik Zackrisson, Peter Lundqvist +1
The first population III stars are predicted to form in minihalos at a redshift of approximately 10-30. The James Webb Space Telescope (JWST), tentatively scheduled for launch in 2…
Detecting gravitationally lensed population III galaxies with the Hubble Space Telescope and the James Webb Space Telescope
E. Zackrisson, A. Zitrin, M. Trenti +6
Small galaxies consisting entirely of population III (pop III) stars may form at high redshifts, and could constitute one of the best probes of such stars. Here, we explore the pro…
The spectral evolution of the first galaxies. I. James Webb Space Telescope detection limits and color criteria for population III galaxies
E. Zackrisson, C. -E. Rydberg, D. Schaerer +2
The James Webb Space Telescope (JWST) is expected to revolutionize our understanding of the high-redshift Universe, and may be able to test the prediction that the first, chemicall…
Can the James Webb Space Telescope detect isolated population III stars?
C. -E. Rydberg, E. Zackrisson, P. Scott
Isolated population III stars are postulated to exist at approximately z=10-30 and may attain masses up to a few hundred solar masses. The James Webb Space telescope (JWST) is the…
Observational constraints on supermassive dark stars
Erik Zackrisson, Pat Scott, Claes-Erik Rydberg +6
Some of the first stars could be cooler and more massive than standard stellar models would suggest, due to the effects of dark matter annihilation in their cores. It has recently…
Finding high-redshift dark stars with the James Webb Space Telescope
Erik Zackrisson, Pat Scott, Claes-Erik Rydberg +7
The first stars in the history of the Universe are likely to form in the dense central regions of 10^5-10^6 Msolar cold dark matter halos at z=10-50. The annihilation of dark matte…