activity
20192026
most citedThe Science Performance of JWST as Characterized in Commissioning

440 citations · 1k across the 36 of their papers we have counts for

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31 papers · 1 filter

astro-ph.GA2026

An Archival Calibration of JWST/MIRI Prism Wide-Field Slitless Spectroscopy: Methodology, Performance, and a Mid-Infrared Spectral Atlas of Galaxies at in the GOODS-N/S Fields

Fengwu Sun, Javier Álvarez-Márquez, Eiichi Egami +4

Through the Low Resolution Spectroscopy (LRS) observing mode of JWST/MIRI, the P750L prism disperses the entire ~70"110" imager field, turning MIRI into a wide-field slitle…

astro-ph.GA2026

Cosmic Noon Galaxies in the Hubble Ultra Deep Field with MIRI Wide-Field Slitless Spectroscopy

S. Kendrew, G. Östlin, L. Colina +29

We present results from a survey of the Hubble Ultra-Deep Field using the Wide-Field Slitless Spectroscopic (WFSS) capability of the Mid-Infrared Instrument (MIRI) on JWST, demonst…

astro-ph.GA2026

PRISMS. GHZ1. A standard tale of galaxy evolution with atypical ionizing conditions at

Borja Pérez-Díaz, Marco Castellano, Javier Álvarez-Márquez +33

[Abridged] The first operating years of the James Webb Space Telescope (JWST) have revealed a surprising number of UV-bright objects, many of them characterized by t…

astro-ph.GA2026

RIOJA. Environmental Effects on Stellar Populations and Ionized Gas in a Protocluster at

Wataru Osone, Takuya Hashimoto, Javier Álvarez-Márquez +23

Protoclusters in the epoch of reionization provide key laboratories for investigating how environment shapes early galaxy formation and evolution, and may also have contributed to…

astro-ph.GA2026

Deep Spectroscopic Follow-Up of Maisie's Galaxy -- A Typical Galaxy in the Early Universe

Rebecca L. Larson, Taylor A. Hutchison, Steven L. Finkelstein +26

The first several years of JWST observations have yielded surprisingly large numbers of bright galaxies, with follow-up spectroscopy of many of these sources implying extrem…

astro-ph.GA2026

Stratification of the AGN-Driven multi-phase outflows in the dwarf Seyfert galaxy NGC 4395

Payel Nandi, Luis Colina, Rogemar A. Riffel +5

We present a multi-wavelength study of nuclear outflows in the nearby dwarf Seyfert galaxy NGC~4395, which hosts an intermediate-mass black hole. Using \textit{JWST}/NIRSpec and MI…

astro-ph.GA2026

PRISMS. UNCOVER-26185, a metal-poor SFG at z=10.05 with no evidence for a X-ray-luminous AGN

J. Álvarez-Márquez, L. Colina, A. Crespo-Gomez +31

This work presents the first results of the PRImordial galaxy Survey with MIRI Spectroscopy (PRISMS), a JWST cycle 4 program (PID 8051) aimed at the characterization of a relativel…

astro-ph.GA2026★ 1 cited

PRISMS. U37126, a very blue, ISM-naked starburst at z=10.255 with nearly 100% Lyman continuum escape fraction

R. Marques-Chaves, J. Álvarez-Márquez, L. Colina +31

We present very deep (~11h) JWST/MIRI low-resolution spectroscopy of the rest-frame optical emission of U37126, a UV-bright (M_UV ~ -20), mildly lensed () galaxy at z=…

astro-ph.GA2026

A UV-Luminous Galaxy at z=11 with Surprisingly Weak Star Formation Activity

Yuichi Harikane, Pablo G. Perez-Gonzalez, Javier Alvarez-Marquez +8

One of the major discoveries by the James Webb Space Telescope (JWST) is the identification of a large population of luminous galaxies at , challenging theoretical models for…

astro-ph.GA2025★ 2 cited

MIRI spectrophotometry of GN-z11: Detection and nature of an optical red continuum component

A. Crespo Gómez, L. Colina, P. G. Pérez-González +16

We present new MIRI F560W, F770W and F1000W imaging of GN-z11, extending the previous rest-frame coverage from 0.38 to 0.86m. We report significant detections (14) in the F56…

astro-ph.GA2025

RIOJA. Young Starburst and Ionized Gas Outflows in a Galaxy Uncovered by JWST NIRCam and NIRSpec Observations

Yi W. Ren, Akio K. Inoue, Javier Álvarez-Márquez +21

We present analysis of JWST NIRCam and NIRSpec observations of the galaxy SXDF-NB1006-2 at , as part of the Reionization and the ISM/Stellar Origins with JWST and ALMA (…

astro-ph.GA2025

ELPIS: Accelerated metal and dust enrichment in a proto-cluster core at

Hideki Umehata, Yoichi Tamura, Yoshinobu Fudamoto +17

We present a study of the metal, dust, and molecular gas content in galaxies within the A2744-z7p9OD proto-cluster at z ~ 7.88. We focus on two galaxy groups, the Quintet and the C…

astro-ph.GA2025

RIOJA. A Clumpy Galaxy Assembly at Redshift 6.81 Revealed by JWST

Ken Mawatari, Luca Costantin, Mitsutaka Usui +21

Spatially resolved multi-wavelength analysis is essential to study galaxy formation and evolution. A UV-bright galaxy COS-2987030247 at is one of the Rosetta Stones in t…

astro-ph.GA2025★ 3 cited

The rise of the galactic empire: luminosity functions at and estimated with the MIDISNGDEEP ultra-deep JWST/NIRCam dataset

Pablo G. Pérez-González, Göran Östlin, Luca Costantin +39

We present a sample of six F200W and three F277W dropout sources identified as galaxy candidates using the deepest JWST/NIRCam data to date (5 depths mag at…

astro-ph.GA2024★ 4 cited

Unveiling dust, molecular gas, and high star formation efficiency in extremely UV bright star-forming galaxies at

M. Dessauges-Zavadsky, R. Marques-Chaves, D. Schaerer +4

We analysed ALMA FIR (1.3 mm) dust continuum and CO emission of 12 starburst galaxies at , selected for their extreme brightness in the rest-UV with $M_{\rm UV} = -2…

astro-ph.GA2024

First direct carbon abundance measured at in the lensed galaxy MACS0647JD

Tiger Yu-Yang Hsiao, Michael W. Topping, Dan Coe +7

Investigating the metal enrichment in the early universe helps us constrain theories about the first stars and study the ages of galaxies. The lensed galaxy MACS0647JD at $z=10.…

astro-ph.GA2024★ 14 cited

Witnessing an extreme, highly efficient galaxy formation mode with resolved Ly and LyC emission

R. Marques-Chaves, D. Schaerer, E. Vanzella +9

J1316+2614 at z=3.613 is the UV-brightest ( = -24.7) and strongest Lyman continuum (LyC, 90%) emitting star-forming galaxy known, showing also signa…

astro-ph.GA2024★ 1 cited

MIDIS: MIRI uncovers Virgil, the first Little Red Dot with clear detection of its host galaxy at z ~ 6.6

Edoardo Iani, Pierluigi Rinaldi, Karina I. Caputi +24

We present Virgil, a MIRI extremely red object (MERO) detected with the F1000W filter as part of the MIRI Deep Imaging Survey (MIDIS) observations of the Hubble Ultra Deep Field (H…

astro-ph.GA2024

The emergence of the Star Formation Main Sequence with redshift unfolded by JWST

P. Rinaldi, R. Navarro-Carrera, K. I. Caputi +13

We investigate the correlation between stellar mass (M*) and star formation rate (SFR) across the stellar mass range log10(M*/Msun)~6-11. We consider almost 50,000 star-forming gal…

astro-ph.GA2024★ 2 cited

JWST NIRSpec High-resolution Spectroscopy of MACS0647-JD at z=10.167: Resolved [OII] Doublet and Electron Density in an Early Galaxy

Abdurro'uf, Rebecca L. Larson, Dan Coe +26

We present JWST/NIRSpec high-resolution spectroscopy G395H/F290LP of MACS0647-JD, a gravitationally lensed galaxy merger at . The new spectroscopy, which is acquired for…

astro-ph.GA2024

RIOJA. Complex Dusty Starbursts in a Major Merger B14-65666 at z=7.15

Yuma Sugahara, Javier Álvarez-Márquez, Takuya Hashimoto +20

We present JWST NIRCam imaging of B14-65666 ("Big Three Dragons"), a bright Lyman-break galaxy system ( mag) at . The high angular resolution of NIRCam r…

astro-ph.GA2024★ 10 cited

JWST/MIRI unveils the stellar component of the GN20 dusty galaxy overdensity at =4.05

A. Crespo Gómez, L. Colina, J. Álvarez-Márquez +24

Despite the importance of the dusty star-forming galaxies (DSFGs) at >2 for understanding the galaxy evolution in the early Universe, their stellar distributions traced by the n…

astro-ph.GA2024

A NIRCam-dark galaxy detected with the MIRI/F1000W filter in the MIDIS/JADES Hubble Ultra Deep Field

Pablo G. Pérez-González, Pierluigi Rinaldi, Karina I. Caputi +32

We report the discovery of Cerberus, an extremely red object detected with the MIRI Deep Imaging Survey (MIDIS) observations in the F1000W filter of the Hubble Ultra Deep Field. Th…

astro-ph.GA2023★ 2 cited

MIDIS: Unveiling the Role of Strong Ha-emitters during the Epoch of Reionization with JWST

P. Rinaldi, K. I. Caputi, E. Iani +40

By using the ultra-deep \textit{JWST}/MIRI image at 5.6 in the Hubble eXtreme Deep Field, we constrain the role of strong H-emitters (HAEs) during Cosmic Reionization at $z…