activity
20182025
most citedThe Keck Cosmic Web Imager Integral Field Spectrograph

244 citations · 573 across the 14 of their papers we have counts for

collaborators

14 papers

astro-ph.GA2025

Coevolution of halo and quasar properties in dense environments: CARLA J1017+6116 at z=2.8

Sofia G. Gallego, Simona Mei, Christopher Martin +4

Radio-loud active galactic nuclei, in particular radio-loud quasars, are fueled by accretion onto supermassive black holes and are among the most energetic sources in the Universe.…

astro-ph.GA2023★ 4 cited

Circumgalactic Ly Nebulae in Overdense Quasar Pair Regions Observed with the Palomar Cosmic Web Imager

Jessica S. Li, Carlos J. Vargas, Donal O'Sullivan +8

The recent discovery of enormous Ly nebulae (ELANe), characterized by physical extents kpc and Ly luminosities erg s, provide a unique opportunity to…

astro-ph.CO2022★ 49 cited

Evidence for Cold-stream to Hot-accretion Transition as Traced by Lyα Emission from Groups and Clusters at 2 < z < 3.3

E. Daddi, R. M. Rich, F. Valentino +12

We present Keck Cosmic Web Imager (KCWI) observations of giant Lya halos surrounding 9 galaxy groups and clusters at 2<z<3.3, including five new detections and one upper limit. We…

astro-ph.IM2021

End-to-end ground calibration and in-flight performance of the FIREBall-2 instrument

Vincent Picouet, Bruno Milliard, Gillian Kyne +18

The payload of the Faint Intergalactic Redshifted Emission Balloon (FIREBall-2), the second generation of the FIREBall instrument (PI: C. Martin, Caltech), has been calibrated and…

astro-ph.IM2020★ 6 cited

CWITools: A Python3 Data Analysis Pipeline for the Cosmic Web Imager Instruments

Donal O'Sullivan, Yuguang Chen

The Palomar Cosmic Web Imager (PCWI) and Keck Cosmic Web Imager (KCWI) are integral-field spectrographs on the Hale 5m telescope at Palomar Observatory and the Keck-2 10m telescope…

astro-ph.IM2020★ 15 cited

FIREBall-2: The Faint Intergalactic Medium Redshifted Emission Balloon Telescope

Erika Hamden, D. Christopher Martin, Bruno Milliard +31

The Faint Intergalactic Medium Redshifted Emission Balloon (FIREBall) is a mission designed to observe faint emission from the circumgalactic medium of moderate redshift (z~0.7) ga…

astro-ph.GA2020★ 86 cited

Three Lyman-alpha emitting filaments converging to a massive galaxy group at z=2.91: discussing the case for cold gas infall

E. Daddi, F. Valentino, R. M. Rich +21

We have discovered a 300kpc-wide giant Lya nebula centered on the massive galaxy group RO-1001 at z=2.91 in the COSMOS field. Keck Cosmic Web Imager observations reveal three cold…

astro-ph.GA2020★ 40 cited

Spectroscopic Confirmation of a Coma Cluster Progenitor at z ~ 2.2

Behnam Darvish, Nick Z. Scoville, Christopher Martin +17

We report the spectroscopic confirmation of a new protocluster in the COSMOS field at 2.2, COSMOS Cluster 2.2 (CC2.2), originally identified as an overdensity of narrowb…

astro-ph.GA2019★ 49 cited

The FLASHES Survey I: Integral Field Spectroscopy of the CGM around 48 QSOs

Donal O'Sullivan, Christopher Martin, Mateusz Matuszewski +5

We present the pilot study component of the Fluorescent Lyman-Alpha Structures in High-z Environments (FLASHES) Survey; the largest integral-field spectroscopy survey to date of th…

astro-ph.IM2019

FIREBall-2: advancing TRL while doing proof-of-concept astrophysics on a suborbital platform

Erika T. Hamden, Keri Hoadley, D. Christopher Martin +32

Here we discuss advances in UV technology over the last decade, with an emphasis on photon counting, low noise, high efficiency detectors in sub-orbital programs. We focus on the u…

astro-ph.GA2019

Multi-Filament Inflows Fueling Young Star Forming Galaxies

D. Christopher Martin, Donal O'Sullivan, Mateusz Matuszweski +13

Theory suggests that there are two primary modes of accretion through which dark matter halos acquire the gas to form and fuel galaxies, hot and cold mode accretion. In cold mode a…

astro-ph.IM2018★ 244 cited

The Keck Cosmic Web Imager Integral Field Spectrograph

Patrick Morrissey, Matuesz Matuszewski, D. Christopher Martin +36

We report on the design and performance of the Keck Cosmic Web Imager (KCWI), a general purpose optical integral field spectrograph that has been installed at the Nasmyth port of t…

astro-ph.GA2018★ 63 cited

Keck/Palomar Cosmic Web Imagers (KCWI/PCWI) Reveal an Enormous Ly Nebula in an Extremely Overdense QSO Pair Field at

Zheng Cai, Erika Hamden, Matt Matuszewski +10

Enormous Ly nebulae (ELANe) represent the extrema of Ly nebulosities. They have detected extents of kpc in Ly and Ly luminosities erg s. The EL…

astro-ph.HE2018★ 17 cited

SPIRITS 16tn in NGC 3556: A heavily obscured and low-luminosity supernova at 8.8 Mpc

Jacob E. Jencson, Mansi M. Kasliwal, Scott M. Adams +17

We present the discovery by the SPitzer InfraRed Intensive Transients Survey (SPIRITS) of a likely supernova (SN) in NGC 3556 at only 8.8 Mpc, which, despite its proximity, was not…