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Extragalactic carbon monoxide (CO) line emission will likely be an important signal in current and future Cosmic Microwave Background (CMB) surveys on small scales. However, great uncertainty surrounds our current understanding of CO…

宇宙学与河外天体物理 · 物理学 2025-06-23 Yogesh Mehta , Anirban Roy , Simon Foreman , Alexander van Engelen , Nick Battaglia

We forecast the ability of future-generation experiments to detect the fine-structure lines of the carbon and oxygen ions, [CII] and [OIII] in intensity mapping (IM) from the Epoch of Reionization ($z \sim 6-8$). Combining the latest…

星系天体物理 · 物理学 2022-08-03 Hamsa Padmanabhan , Patrick Breysse , Adam Lidz , Eric R. Switzer

Line intensity mapping (LIM) is a promising probe to study star formation, the large-scale structure of the Universe, and the epoch of reionization (EoR). Since carbon monoxide (CO) is the second most abundant molecule in the Universe…

宇宙学与河外天体物理 · 物理学 2023-03-01 Xingchen Zhou , Yan Gong , Furen Deng , Meng Zhang , Bin Yue , Xuelei Chen

The large-scale structure of the Universe should soon be measured at high redshift during the Epoch of Reionization (EoR) through line-intensity mapping. A number of ongoing and planned surveys are using the 21 cm line to trace neutral…

宇宙学与河外天体物理 · 物理学 2019-05-01 Angus Beane , Francisco Villaescusa-Navarro , Adam Lidz

Rotational transition lines of CO are one of the major tracers used to study star forming regions and Galactic structures. A large number of observations of CO rotational lines are covering the galactic plane, recently the $Planck$…

天体物理仪器与方法 · 物理学 2019-03-29 G. Hurier

We present a novel approach to estimating the intensity mapping signal of any CO rotational line emitted during the Epoch of Reionization (EoR). Our approach is based on large velocity gradient (LVG) modeling, a radiative transfer modeling…

星系天体物理 · 物理学 2015-10-22 Natalie Mashian , Amiel Sternberg , Abraham Loeb

In the next few years, intensity-mapping surveys that target lines such as CO, Ly$\alpha$, and CII stand to provide powerful probes of high-redshift astrophysics. However, these line emissions are highly non-Gaussian, and so the typical…

宇宙学与河外天体物理 · 物理学 2017-02-01 Patrick C. Breysse , Ely D. Kovetz , Peter S. Behroozi , Liang Dai , Marc Kamionkowski

Cosmic Dawn Intensity Mapper is a "Probe Class" mission concept for reionization studies of the universe. It will be capable of spectroscopic imaging observations between 0.7 to 6-7 microns in the near-Infrared. The primary observational…

Primordial non-Gaussianity is an invaluable window into the physical processes that gave rise to the cosmological structure. The presence of local shape PNG imprints a distinct scale-dependent correction to the bias of dark matter tracers…

宇宙学与河外天体物理 · 物理学 2019-01-15 Azadeh Moradinezhad Dizgah , Garrett K. Keating , Anastasia Fialkov

We present a detection of molecular gas emission at $z\sim1-5$ using the technique of line intensity mapping. We make use of a pair of 3 mm interferometric data sets, the first from the ALMA Spectroscopic Survey in the Hubble Ultra Deep…

星系天体物理 · 物理学 2020-10-07 Garrett K. Keating , Daniel P. Marrone , Geoffrey C. Bower , Ryan P. Keenan

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…

星系天体物理 · 物理学 2024-06-13 Anirban Roy , Nicholas Battaglia , Anthony R. Pullen

Line intensity mapping (LIM) provides a unique and powerful means to probe cosmic structures by measuring the aggregate line emission from all galaxies across redshift. The method is complementary to conventional galaxy redshift surveys…

We are developing the Precision Array for Probing the Epoch of Reionization (PAPER) to detect 21cm emission from the early Universe, when the first stars and galaxies were forming. We describe the overall experiment strategy and…

Cross-correlating 21cm and Ly$\alpha$ intensity maps of the Epoch of Reionization (EoR) promises to be a powerful tool for exploring the properties of the first galaxies. Next-generation intensity mapping experiments such as the Hydrogen…

宇宙学与河外天体物理 · 物理学 2022-03-02 Tyler A. Cox , Daniel C. Jacobs , Steven G. Murray

Line-intensity mapping surveys probe large-scale structure through spatial variations in molecular line emission from a population of unresolved cosmological sources. Future such surveys of carbon monoxide line emission, specifically the…

星系天体物理 · 物理学 2017-09-04 Dongwoo T. Chung , Tony Y. Li , Marco P. Viero , Sarah E. Church , Risa H. Wechsler

The EXperiment for Cryogenic Large-Aperture Intensity Mapping (EXCLAIM) is a balloon-borne cryogenic telescope that will survey the spectrum of diffuse emission from both the Milky Way and the cosmic web to probe star formation, the…

The field of millimetre-wave line-intensity mapping (LIM) is seeing increased experimental activity with pathfinder surveys already deployed or deploying in the next few years, making spectroscopic measurements of unresolved atomic and…

宇宙学与河外天体物理 · 物理学 2022-04-27 Dongwoo T Chung

Remote observation of spectroscopic emissions is a potential tool for the identification and quantification of various species in comets. CO Cameron band (to trace \cod) and atomic oxygen emissions (to trace H$_2$O and/or CO$_2$, CO) have…

地球与行星天体物理 · 物理学 2016-02-17 Susarla Raghuram , Anil Bhardwaj , Marina Galand

The Census of High- and Medium-mass Protostars (CHaMP) is the first large-scale, unbiased, uniform mapping survey at sub-parsec scale resolution of 90 GHz line emission from massive molecular clumps in the Milky Way. We present the first…

We present a new procedure to measure the large-scale carbon monoxide (CO) emissions across cosmic history. As a tracer of large-scale structure (LSS), the CO gas content as a function of redshift can be quantified by its three-dimensional…

宇宙学与河外天体物理 · 物理学 2013-04-17 Anthony Pullen , Tzu-Ching Chang , Olivier Dore , Adam Lidz