Search Results - "Jensen, Hannes"

THE SPECTRAL EVOLUTION OF THE FIRST GALAXIES. II. SPECTRAL SIGNATURES OF LYMAN CONTINUUM LEAKAGE FROM GALAXIES IN THE REIONIZATION EPOCH by Zackrisson, Erik, Inoue, Akio K, Jensen, Hannes

“…The fraction of ionizing photons that escape (f sub(esc)) from z [gap] 6 galaxies is an important parameter for assessing the role of these objects in the…”
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The wedge bias in reionization 21-cm power spectrum measurements by Jensen, Hannes, Majumdar, Suman, Mellema, Garrelt, Lidz, Adam, Iliev, Ilian T., Dixon, Keri L.

“…A proposed method for dealing with foreground emission in upcoming 21-cm observations from the epoch of reionization is to limit observations to an…”
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A MACHINE-LEARNING APPROACH TO MEASURING THE ESCAPE OF IONIZING RADIATION FROM GALAXIES IN THE REIONIZATION EPOCH by Jensen, Hannes, Zackrisson, Erik, Pelckmans, Kristiaan, Binggeli, Christian, Ausmees, Kristiina, Lundholm, Ulrika

“…ABSTRACT Recent observations of galaxies at , along with the low value of the electron scattering optical depth measured by the Planck mission, make galaxies…”
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Hunting for dark halo substructure using submilliarcsecond-scale observations of macrolensed radio jets by Zackrisson, Erik, Asadi, Saghar, Wiik, Kaj, Jönsson, Jakob, Scott, Pat, Datta, Kanan K., Friedrich, Martina M., Jensen, Hannes, Johansson, Joel, Rydberg, Claes-Erik, Sandberg, Andreas

“…Dark halo substructure may reveal itself through secondary, small-scale gravitational lensing effects on light sources that are macrolensed by a foreground…”
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On the use of Lyα emitters as probes of reionization by Jensen, Hannes, Laursen, Peter, Mellema, Garrelt, Iliev, Ilian T., Sommer-Larsen, Jesper, Shapiro, Paul R.

“…We use numerical simulations to study the effects of the patchiness of a partly reionized intergalactic medium (IGM) on the observability of Lyα emitters…”
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On the use of seminumerical simulations in predicting the 21-cm signal from the epoch of reionization by Majumdar, Suman, Mellema, Garrelt, Datta, Kanan K., Jensen, Hannes, Choudhury, T. Roy, Bharadwaj, Somnath, Friedrich, Martina M.

“…We present a detailed comparison of three different simulations of the epoch of reionization (EoR). The radiative transfer simulation (c 2 -ray) among them is…”
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Optical intensity interferometry with the Cherenkov Telescope Array by Dravins, Dainis, LeBohec, Stephan, Jensen, Hannes, Nuñez, Paul D.

“…► The large CTA light-collecting area enables also optical astronomy. ► Kilometer-scale optical interferometry resolves stellar surfaces. ► Telescopes connect…”
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Predictions for the 21cm–galaxy cross-power spectrum observable with SKA and future galaxy surveys by Vrbanec, Dijana, Ciardi, Benedetta, Jelić, Vibor, Jensen, Hannes, Iliev, Ilian T, Mellema, Garrelt, Zaroubi, Saleem

“…ABSTRACT In this paper, we use radiative transfer+N-body simulations to explore the feasibility of measurements of cross-correlations between the 21-cm field…”
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Light cone effect on the reionization 21-cm signal – II. Evolution, anisotropies and observational implications by Datta, Kanan K., Jensen, Hannes, Majumdar, Suman, Mellema, Garrelt, Iliev, Ilian T., Mao, Yi, Shapiro, Paul R., Ahn, Kyungjin

“…Measurements of the H i 21-cm power spectra from the reionization epoch will be influenced by the evolution of the signal along the line-of-sight direction of…”
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Erratum: Lyman continuum leakage versus quenching with the james webb space telescope: the spectral signatures of quenched star formation activity in reionization-epoch galaxies by Binggeli, Christian, Zackrisson, Erik, Pelckmans, Kristiaan, Cubo, Rubén, Jensen, Hannes, Shimizu, Ikko

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The Spectral Evolution of the First Galaxies. III. Simulated James Webb Space Telescope Spectra of Reionization-epoch Galaxies with Lyman-continuum Leakage by Zackrisson, Erik, Binggeli, Christian, Finlator, Kristian, Gnedin, Nickolay Y., Paardekooper, Jan-Pieter, Shimizu, Ikkoh, Inoue, Akio K., Jensen, Hannes, Micheva, Genoveva, Khochfar, Sadegh, Vecchia, Claudio Dalla

“…Using four different suites of cosmological simulations, we generate synthetic spectra for galaxies with different Lyman-continuum escape fractions (fesc) at…”
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Lyman continuum leakage versus quenching with the James Webb Space Telescope: the spectral signatures of quenched star formation activity in reionization-epoch galaxies by Binggeli, Christian, Zackrisson, Erik, Pelckmans, Kristiaan, Cubo, Rubén, Jensen, Hannes, Shimizu, Ikko

“…ABSTRACT In this paper, we study the effects of a recent drop in star formation rate (SFR) on the spectra of epoch of reionization (EoR) galaxies, and the…”
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Tools21cm: A python package to analyse the large-scale 21-cm signal from the Epoch of Reionization and Cosmic Dawn by Giri, Sambit, Mellema, Garrelt, Jensen, Hannes

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Reionization and the Cosmic Dawn with the Square Kilometre Array by Mellema, Garrelt, Koopmans, Léon V. E., Abdalla, Filipe A., Bernardi, Gianni, Ciardi, Benedetta, Daiboo, Soobash, de Bruyn, A. G., Datta, Kanan K., Falcke, Heino, Ferrara, Andrea, Iliev, Ilian T., Iocco, Fabio, Jelić, Vibor, Jensen, Hannes, Joseph, Ronniy, Labroupoulos, Panos, Meiksin, Avery, Mesinger, Andrei, Offringa, André R., Pandey, V. N., Pritchard, Jonathan R., Santos, Mario G., Schwarz, Dominik J., Semelin, Benoit, Vedantham, Harish, Yatawatta, Sarod, Zaroubi, Saleem

“…The Square Kilometre Array (SKA) will have a low frequency component (SKA-low) which has as one of its main science goals the study of the redshifted 21 cm…”
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Erratum: "The Spectral Evolution of the First Galaxies. III. Simulated James Webb Space Telescope Spectra of Reionization-epoch Galaxies with Lyman-continuum Leakage" (2017, ApJ, 836, 78) by Zackrisson, Erik, Binggeli, Christian, Finlator, Kristian, Gnedin, Nickolay Y., Paardekooper, Jan-Pieter, Shimizu, Ikkoh, Inoue, Akio K., Jensen, Hannes, Micheva, Genoveva, Khochfar, Sadegh, Vecchia, Claudio Dalla

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Studying reionization with the next generation of Lyα emitter surveys by Jensen, H., Hayes, M., Iliev, I. T., Laursen, P., Mellema, G., Zackrisson, E.

“…We study the prospects for constraining the ionized fraction of the intergalactic medium (IGM) at z > 6 with the next generation of large Lyα emitter surveys…”
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Predictions for the 21 cm-galaxy cross-power spectrum observable with LOFAR and Subaru by Vrbanec, Dijana, Ciardi, Benedetta, Jelić, Vibor, Jensen, Hannes, Zaroubi, Saleem, Fernandez, Elizabeth R., Ghosh, Abhik, Iliev, Ilian T., Kakiichi, Koki, Koopmans, Léon V. E., Mellema, Garrelt

“…The 21 cm-galaxy cross-power spectrum is expected to be one of the promising probes of the Epoch of Reionization (EoR), as it could offer information about the…”
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Probing reionization with LOFAR using 21-cm redshift space distortions by Jensen, Hannes, Datta, Kanan K., Mellema, Garrelt, Chapman, Emma, Abdalla, Filipe B., Iliev, Ilian T., Mao, Yi, Santos, Mario G., Shapiro, Paul R., Zaroubi, Saleem, Bernardi, G., Brentjens, M. A., de Bruyn, A. G., Ciardi, B., Harker, G. J. A., Jeli, V., Kazemi, S., Koopmans, L. V. E., Labropoulos, P., Martinez, O., Offringa, A. R., Pandey, V. N., Schaye, J., Thomas, R. M., Veligatla, V., Vedantham, H., Yatawatta, S.

“…One of the most promising ways to study the epoch of reionization (EoR) is through radio observations of the redshifted 21-cm line emission from neutral…”
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Polarization leakage in epoch of reionization windows – I. Low Frequency Array observations of the 3C196 field by Asad, K. M. B., Koopmans, L. V. E., Jelić, V., Pandey, V. N., Ghosh, A., Abdalla, F. B., Bernardi, G., Brentjens, M. A., de Bruyn, A. G., Bus, S., Ciardi, B., Chapman, E., Daiboo, S., Fernandez, E. R., Harker, G., Iliev, I. T., Jensen, H., Martinez-Rubi, O., Mellema, G., Mevius, M., Offringa, A. R., Patil, A. H., Schaye, J., Thomas, R. M., van der Tol, S., Vedantham, H. K., Yatawatta, S., Zaroubi, S.

“…Detection of the 21-cm signal coming from the epoch of reionization (EoR) is challenging especially because, even after removing the foregrounds, the residual…”
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Effects of the sources of reionization on 21-cm redshift-space distortions by Majumdar, Suman, Jensen, Hannes, Mellema, Garrelt, Chapman, Emma, Abdalla, Filipe B., Lee, Kai-Yan, Iliev, Ilian T., Dixon, Keri L., Datta, Kanan K., Ciardi, Benedetta, Fernandez, Elizabeth R., Jelić, Vibor, Koopmans, Léon V. E., Zaroubi, Saleem

“…The observed 21 cm signal from the epoch of reionization will be distorted along the line of sight by the peculiar velocities of matter particles. These…”
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