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相关论文: Emission Line Predictions for Mock Galaxy Catalogu…

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Optical emission lines are used to categorize galaxies into three groups according to their dominant central radiation source: active galactic nuclei, star formation, or low-ionization (nuclear) emission regions [LI(N)ERs] that may trace…

星系天体物理 · 物理学 2020-07-07 Dhanesh Krishnarao , Robert A. Benjamin , L. Matthew Haffner

We simulate galaxy properties and redshift estimation for SPHEREx, the next NASA Medium Class Explorer. To make robust models of the galaxy population and test spectro-photometric redshift performance for SPHEREx, we develop a set of…

宇宙学与河外天体物理 · 物理学 2023-12-11 Richard M. Feder , Daniel C. Masters , Bomee Lee , James J. Bock , Yi-Kuan Chiang , Ami Choi , Olivier Dore , Shoubaneh Hemmati , Olivier Ilbert

We explore the prospects of predicting emission line features present in galaxy spectra given broad-band photometry alone. There is a general consent that colours, and spectral features, most notably the 4000 A break, can predict many…

天体物理学 · 物理学 2009-11-13 F. B. Abdalla , A. Mateus , W. A. Santos , L. Sodre , I. Ferreras , O. Lahav

Galaxy surveys targeting emission lines are characterising the evolution of star-forming galaxies, but there is still little theoretical progress in modelling their physical properties. We predict nebular emission from star-forming galaxies…

宇宙学与河外天体物理 · 物理学 2015-06-18 Alvaro Orsi , Nelson Padilla , Brent Groves , Sofia Cora , Tomas Tecce , Ignacio Gargiulo , Andres Ruiz

We present the Simple Intensity Map Producer for Line Emission (SIMPLE), a public code for quickly simulating mock line-intensity maps, and an analytical framework for modeling intensity maps including observational effects. SIMPLE can be…

宇宙学与河外天体物理 · 物理学 2025-05-06 Maja Lujan Niemeyer , José Luis Bernal , Eiichiro Komatsu

We present a first instalment of the MUSE-Wide survey, covering an area of 22.2 arcmin$^2$ (corresponding to $\sim$20% of the final survey) in the CANDELS/Deep area of the Chandra Deep Field South. We use the MUSE integral field…

This paper introduces EGG, the Empirical Galaxy Generator, a tool designed within the ASTRODEEP collaboration to generate mock galaxy catalogs for deep fields with realistic fluxes and simple morphologies. The simulation procedure is based…

Local star-forming galaxies show properties that are thought to differ from galaxies in the early Universe. Among them, the ionizing stellar populations and the gas geometry make the recipes designed to derive chemical abundances from…

星系天体物理 · 物理学 2021-04-07 E. Pérez-Montero , R. Amorín , J. Sánchez Almeida , J. M. Vílchez , R. García-Benito , C. Kehrig

The accurate measurement of stellar masses over a wide range of galaxy properties is essential for better constraining models of galaxy evolution. Emission line galaxies (ELGs) tend to have better redshift estimates than continuum-selected…

星系天体物理 · 物理学 2021-05-26 Gautam Nagaraj , Robin Ciardullo , Alex Lawson , William Bowman , Gregory Zeimann , Guang Yang , Caryl Gronwall

Line-intensity mapping (LIM) is a growing technique that measures the integrated spectral-line emission from unresolved galaxies over a three-dimensional region of the Universe. Although LIM experiments ultimately aim to provide powerful…

Emission-line regions are key to understanding the properties of galaxies, as they trace the exchange of matter and energy between stars and the interstellar medium (ISM). In nearby galaxies, individual nebulae can be identified as HII…

We measure the clustering of Lyman Alpha Emitting galaxies (LAEs) selected from the One-hundred-square-degree DECam Imaging in Narrowbands (ODIN) survey, with spectroscopic follow-up from Dark Energy Spectroscopic Instrument (DESI). We use…

The existence of galaxy intrinsic clustering severely hampers the weak lensing reconstruction from cosmic magnification. In paper I \citep{Yang2011}, we proposed a minimal variance estimator to overcome this problem. By utilizing the…

宇宙学与河外天体物理 · 物理学 2016-09-21 Xinjuan Yang , Pengjie Zhang , Jun Zhang , Yu Yu

Optical emission-line ratios in star-forming galaxies at $z \sim 3$-8, such as [OIII]/H$\beta$ and [OIII]/[OII], are strongly offset from those at $z \sim 0$-2, pointing to more extreme ionization and ISM conditions in the early Universe.…

We present a synthetic galaxy lightcone specially designed for narrow-band optical photometric surveys. To reduce time-discreteness effects, unlike previous works, we directly include the lightcone construction in the \texttt{L-Galaxies}…

We present the Metadetection weak lensing galaxy shape catalogue from the six-year Dark Energy Survey (DES Y6) imaging data. This dataset is the final release from DES, spanning 4422 deg$^2$ of the southern sky. We describe how the…

Lyman Alpha Emitters (LAEs) are galaxies that have been selected on the basis of a strong Ly{\alpha} emission line in their spectra. Observational campaigns have dramatically increased the sample of known LAEs, which now extends out to z=7.…

宇宙学与河外天体物理 · 物理学 2015-05-30 Mark Dijkstra , Stuart Wyithe