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One challenge for applying current weak lensing analysis tools to the Nancy Grace Roman Space Telescope is that individual images will be undersampled. Our companion paper presented an initial application of Imcom - an algorithm that builds…

The James Webb Space Telescope (JWST) will enable the detection of optical emission lines in galaxies spanning a broad range of luminosities out to redshifts z>10. Measurements of key galaxy properties, such as star formation rate and…

We present HSIM: a dedicated pipeline for simulating observations with the HARMONI integral field spectrograph on the European Extremely Large Telescope. HSIM takes high spectral and spatial resolution input data-cubes, encoding physical…

Instrumentation and Methods for Astrophysics · Physics 2015-09-30 S. Zieleniewski , N. Thatte , S. Kendrew , R. C. W. Houghton , A. M. Swinbank , M. Tecza , F. Clarke , T. Fusco

We present a simulation of the time-domain catalog for the Nancy Grace Roman Space Telescope's High-Latitude Time-Domain Core Community Survey. This simulation, called the Hourglass simulation, uses the most up-to-date spectral energy…

Instrumentation and Methods for Astrophysics · Physics 2025-06-06 B. M. Rose , M. Vincenzi , R. Hounsell , H. Qu , L. Aldoroty , D. Scolnic , R. Kessler , P. Macias , D. Brout , M. Acevedo , R. C. Chen , S. Gomez , E. Peterson , D. Rubin , M. Sako

The Chinese Space Station Telescope (CSST) slitless spectroscopic survey will observe objects to a limiting magnitude of ~ 23 mag (5$\sigma$, point sources) in U, V, and I over 17500 deg$^2$. The spectroscopic observations are expected to…

Astrophysics of Galaxies · Physics 2024-01-29 Run Wen , Xian Zhong Zheng , Yunkun Han , Xiaohu Yang , Xin Wang , Hu Zou , Fengshan Liu , Xin Zhang , Ying Zu , Dong Dong Shi , Yizhou Gu , Yirong Wang

We present deep unbiased spectroscopy of the Hubble Ultra Deep Field (UDF) carried out using the slitless grism spectroscopy mode of the Advance Camera for Surveys on the Hubble Space Telescope (HST). The GRIsm ACS Program for Extragalactic…

The Roman Space Telescope will be a critical mission to demonstrate high-contrast imaging technologies allowing for the characterisation of exoplanets in reflected light. It will demonstrate $10^{-7}$ contrast limits or better at 3--9…

Instrumentation and Methods for Astrophysics · Physics 2024-09-18 Alexis Lau , Élodie Choquet , Lisa Altinier , Iva Laginja , Rémi Soummer , Laurent Pueyo , Nicolas Godoy , Arthur Vigan , David Mary

For weak gravitational lensing cosmology with the forthcoming Nancy Grace Roman Space Telescope, image coaddition, or construction of oversampled images from undersampled ones, is a critical step in the image processing pipeline. In the…

Instrumentation and Methods for Astrophysics · Physics 2026-01-19 Kaili Cao , Christopher M. Hirata , Katherine Laliotis , Masaya Yamamoto , Emily Macbeth , M. A. Troxel

For the next generation of spectroscopic galaxy surveys, it is important to forecast their performances and to accurately interpret their large data sets. For this purpose, it is necessary to consistently simulate different populations of…

Astrophysics of Galaxies · Physics 2020-07-01 Martina Fagioli , Luca Tortorelli , Jörg Herbel , Dominik Zürcher , Alexandre Refregier , Adam Amara

The Nancy Grace Roman Space Telescope Coronagraph Instrument will be the first large scale coronagraphmission with active wavefront control to be operated in space and will demonstrate technologies essential tofuture missions to image…

Instrumentation and Methods for Astrophysics · Physics 2021-08-26 Kian Milani , Ewan S. Douglas , Jaren Ashcraft

The ESPRESSO instrument, to be commissioned in the next months at the ESO VLT, is bound to became a landmark in the field of high-resolution optical spectroscopy, both for its ground-breaking science objectives (search for Earth-like…

Instrumentation and Methods for Astrophysics · Physics 2018-08-14 Guido Cupani , Giorgio Calderone , Stefano Cristiani , Valentina D'Odorico , Giuliano Taffoni

The James Webb Space Telescope near-infrared camera (JWST NIRCam) has two 2.'2 $\times$ 2.'2 fields of view that are capable of either imaging or spectroscopic observations. Either of two $R \sim 1500$ grisms with orthogonal dispersion…

The multiplexing capability of slitless spectroscopy is a powerful asset in creating large spectroscopic datasets, but issues such as spectral confusion make the interpretation of the data challenging. Here we present a new method to search…

The Roman Space Telescope will be instrumental for characterizing the physical properties of galaxies and understanding their evolution across time. However, a complete view of galaxy star formation activity will only be possible with the…

Instrumentation and Methods for Astrophysics · Physics 2025-09-03 Médéric Boquien , Laure Ciesla , Roman Amestoy , Jason Glenn , Carlotta Gruppioni , John-David Smith

The Spectrograph of the RISTRETTO instrument is now currently being manufactured. RISTETTO is an instrument designed to detect and characterize the reflected light of nearby exoplanets. It combines high contrast imaging and high resolution…

The extragalactic distance scale is fundamental to our understanding of astrophysics and cosmology. In recent years, the surface brightness fluctuation (SBF) method, applied in the near-IR, has proven especially powerful for measuring…

Cosmology and Nongalactic Astrophysics · Physics 2023-07-17 John P. Blakeslee , Michele Cantiello , Michael J. Hudson , Laura Ferrarese , Nandini Hazra , Joseph B. Jensen , Eric W. Peng , Gabriella Raimondo

Galaxy spectra are essential to probe the spatial distribution of galaxies in our Universe. To better interpret current and future spectroscopic galaxy redshift surveys, it is important to be able to simulate these data sets. We describe…

Galaxy-galaxy strong gravitational lenses can constrain dark matter models and the Lambda Cold Dark Matter cosmological paradigm at sub-galactic scales. Currently, there is a dearth of images of these rare systems with high signal-to-noise…

Simulations of exoplanet albedo profiles are key to planning and interpreting future direct imaging observations. In this paper we demonstrate the use of the Planetary Spectrum Generator to produce simulations of reflected light exoplanet…

Earth and Planetary Astrophysics · Physics 2021-07-02 Prabal Saxena , Geronimo L. Villanueva , Neil T. Zimmerman , Avi M. Mandell , Adam J. R. W. Smith