Anthony R. Pullen

Reading Between the Lines: Forward Modeling Dust, Continuum, and Spectral Cleaning for Multi-Line Intensity Mapping

Anirban Roy, Rachel S. Somerville, Anthony R. Pullen

Line intensity mapping (LIM) offers a tomographic view of galaxy evolution by measuring the aggregate emission from unresolved galaxies. In the optical and near-infrared, the line emission is accompanied by much brighter continuum emission that must be removed to recover line auto- …

Reading Between the Lines: Forward Modeling Dust, Continuum, and Spectral Cleaning for Multi-Line Intensity Mapping

Anirban Roy, Rachel S. Somerville, Anthony R. Pullen

Line intensity mapping (LIM) offers a tomographic view of galaxy evolution by measuring the aggregate emission from unresolved galaxies. In the optical and near-infrared, the line emission is accompanied by much brighter continuum emission that must be removed to recover line auto- …

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Investigating the reionization epoch through 21 cm and line intensity mapping experiments

Anirban Roy, Anthony R. Pullen, Patrick C. Breysse, Rachel S. Somerville

Abstract The epoch of reionization (EoR), marking the Universe's transition from a neutral to ionized state, represents a pivotal phase for understanding the formation of the first stars and galaxies. Intensity mapping of atomic and molecular lines, such as [CII] and CO …

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Comparison of cross-correlation methods for line intensity mapping

S. Krämer, Patrick C. Breysse, Anthony R. Pullen, Faizah Karim Siddique et autres

ABSTRACT Line intensity mapping (LIM) is a technique for producing three-dimensional maps of the Universe by scanning the sky with a spectrometer sensitive to a range of wavelengths corresponding to the redshifted spectral lines of atoms or molecules, such as hydrogen or …

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Comparison of Cross-Correlation Methods for Line Intensity Mapping

S. Krämer, Patrick C. Breysse, Anthony R. Pullen, Faizah Karim Siddique et autres

Line intensity mapping (LIM) is a technique for producing 3D maps of the Universe by scanning the sky with a spectrometer sensitive to a range of wavelengths corresponding to the redshifted spectral lines of atoms or molecules, such as hydrogen or carbon, …

A New Framework for Interstellar Medium Emission Line Models: Connecting Multiscale Simulations across Cosmological Volumes

Shengqi Yang, Adam Lidz, Andrew Benson, Yizhou Zhao et autres

Abstract The James Webb Space Telescope (JWST) and Atacama Large Millimeter/submillimeter Array have detected emission lines from the ionized interstellar medium (ISM) in some of the first galaxies at z ≳ 6. These measurements present an opportunity to better understand galaxy assembly …

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The Primordial Inflation Explorer (PIXIE): mission design and science goals

A. Kogut, Nabila Aghanim, Jens Chluba, David T. Chuss et autres

Abstract The Primordial Inflation Explorer (PIXIE) is an Explorer-class mission concept to measure the energy spectrum and linear polarization of the cosmic microwave background (CMB). A single cryogenic Fourier transform spectrometer compares the sky to an external blackbody calibration target, measuring the …

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A New Framework for ISM Emission Line Models: Connecting Multi-Scale Simulations Across Cosmological Volumes

Shengqi Yang, Adam Lidz, Andrew Benson, Yizhou Zhao et autres

The JWST and ALMA have detected emission lines from the ionized interstellar medium (ISM) in some of the first galaxies at $z \gtrsim 6$. These measurements present an opportunity to better understand galaxy assembly histories and may allow important tests of state-of-the-art …

Superfluid-tight cryogenic receiver with continuous sub-Kelvin cooling for EXCLAIM

Sumit Dahal, P. A. R. Ade, Christopher Anderson, Alyssa Barlis et autres

The EXperiment for Cryogenic Large-Aperture Intensity Mapping (EXCLAIM) is a balloon-borne telescope designed to survey star formation over cosmological time scales using intensity mapping in the 420 – 540 GHz frequency range. EXCLAIM uses a fully cryogenic telescope coupled to six on-chip …

A Measurement of CO(3-2) Line Emission from eBOSS Galaxies at $z\sim 0.5$ using Planck Data

Anirban Roy, Nicholas Battaglia, Anthony R. Pullen

Line intensity mapping (LIM) is a novel observational technique in astrophysics that utilizes the integrated emission from multiple atomic and molecular transition lines from galaxies to probe the complex physics of galaxy formation and evolution, as well as the large-scale structure of …

Constraining cosmology with the CMB×line intensity mapping-nulling convergence

Hannah Fronenberg, Abhishek S. Maniyar, Anthony R. Pullen, Adrian Liu

Lensing reconstruction maps from the cosmic microwave background (CMB) provide direct observations of the matter distribution of the universe without the use of a biased tracer. Such maps, however, constitute projected observables along the line of sight that are dominated by their …

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New Probe of the High- z Baryon Acoustic Oscillation Scale: BAO Tomography with CMB×LIM -Nulling Convergence

Hannah Fronenberg, Abhishek S. Maniyar, Adrian Liu, Anthony R. Pullen

Standard rulers such as the baryon acoustic oscillation (BAO) scale serve as workhorses for precision tests of cosmology, enabling distance measurements that probe the geometry and expansion history of our Universe. Aside from BAO measurements from the cosmic microwave background (CMB), most …

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