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JWST/NIRCam Probes Young Star Clusters in the Reionization Era Sunrise Arc (2023)
Journal Article
Vanzella, E., Claeyssens, A., Welch, B., Adamo, A., Coe, D., Diego, J. M., …Norman, C. (2023). JWST/NIRCam Probes Young Star Clusters in the Reionization Era Sunrise Arc. Astrophysical Journal, 945(1), Article 53. https://doi.org/10.3847/1538-4357/acb59a

Star cluster formation in the early universe and its contribution to reionization remains largely unconstrained to date. Here we present JWST/NIRCam imaging of the most highly magnified galaxy known at z ∼ 6, the Sunrise arc. We identify six young ma... Read More about JWST/NIRCam Probes Young Star Clusters in the Reionization Era Sunrise Arc.

Subarcsecond-resolution Imaging of M51 with the International LOFAR Telescope (2023)
Journal Article
Venkattu, D., Lundqvist, P., Torres, M. P., Morabito, L., Moldón, J., Conway, J., …Tasse, C. (2023). Subarcsecond-resolution Imaging of M51 with the International LOFAR Telescope. Astrophysical Journal, 953(2), Article 157. https://doi.org/10.3847/1538-4357/ace2c1

We present an International LOFAR Telescope (ILT) subarcsecond-resolution image of the nearby galaxy M51 with a beam size of 0farcs436 × 0farcs366 and rms of 46 μJy. We compare this image with a European VLBI Network study of M51 and discuss the supe... Read More about Subarcsecond-resolution Imaging of M51 with the International LOFAR Telescope.

A Quick Look at the 3 GHz Radio Sky. II. Hunting for DRAGNs in the VLA Sky Survey (2023)
Journal Article
Gordon, Y. A., Rudnick, L., Andernach, H., Morabito, L. K., O’Dea, C. P., Achong, K., …Vantyghem, A. N. (2023). A Quick Look at the 3 GHz Radio Sky. II. Hunting for DRAGNs in the VLA Sky Survey. Astrophysical Journal Supplement, 267(2), Article 37. https://doi.org/10.3847/1538-4365/acda30

Active galactic nuclei (AGNs) can often be identified in radio images as two lobes, sometimes connected to a core by a radio jet. This multicomponent morphology unfortunately creates difficulties for source finders, leading to components that are (a)... Read More about A Quick Look at the 3 GHz Radio Sky. II. Hunting for DRAGNs in the VLA Sky Survey.

VLBI imaging of high-redshift galaxies and protoclusters at low radio frequencies with the International LOFAR Telescope (2023)
Journal Article
Cordun, C. M., Timmerman, R., Miley, G. K., van Weeren, R. J., Sweijen, F., Morabito, L. K., & Röttgering, H. J. A. (2023). VLBI imaging of high-redshift galaxies and protoclusters at low radio frequencies with the International LOFAR Telescope. Astronomy & Astrophysics, 676, Article A29. https://doi.org/10.1051/0004-6361/202346320

It is generally known that luminous, ultra-steep spectrum radio sources are preferentially associated with massive galaxies at high redshifts. In this paper, we describe a pilot project directed at such objects to demonstrate the feasibility and impo... Read More about VLBI imaging of high-redshift galaxies and protoclusters at low radio frequencies with the International LOFAR Telescope.

The Magnificent Five Images of Supernova Refsdal: Time Delay and Magnification Measurements (2023)
Journal Article
Kelly, P. L., Rodney, S., Treu, T., Birrer, S., Bonvin, V., Dessart, L., …Wambsganss, J. (2023). The Magnificent Five Images of Supernova Refsdal: Time Delay and Magnification Measurements. Astrophysical Journal, 948(2), Article 93. https://doi.org/10.3847/1538-4357/ac4ccb

In late 2014, four images of supernova (SN) "Refsdal," the first known example of a strongly lensed SN with multiple resolved images, were detected in the MACS J1149 galaxy-cluster field. Following the images' discovery, the SN was predicted to reapp... Read More about The Magnificent Five Images of Supernova Refsdal: Time Delay and Magnification Measurements.

AGN STORM 2. II. Ultraviolet Observations of Mrk 817 with the Cosmic Origins Spectrograph on the Hubble Space Telescope* (2023)
Journal Article
Homayouni, Y., De Rosa, G., Plesha, R., Kriss, G. A., Barth, A. J., Cackett, E. M., …Zu, Y. (2023). AGN STORM 2. II. Ultraviolet Observations of Mrk 817 with the Cosmic Origins Spectrograph on the Hubble Space Telescope*. Astrophysical Journal, 948(2), Article 85. https://doi.org/10.3847/1538-4357/acc45a

We present reverberation mapping measurements for the prominent ultraviolet broad emission lines of the active galactic nucleus Mrk 817 using 165 spectra obtained with the Cosmic Origins Spectrograph on the Hubble Space Telescope. Our ultraviolet obs... Read More about AGN STORM 2. II. Ultraviolet Observations of Mrk 817 with the Cosmic Origins Spectrograph on the Hubble Space Telescope*.

Redshift Evolution of the Feedback–Cooling Equilibrium in the Core of 48 SPT Galaxy Clusters: A Joint Chandra–SPT–ATCA Analysis (2023)
Journal Article
Ruppin, F., McDonald, M., Hlavacek-Larrondo, J., Bayliss, M., Bleem, L., Calzadilla, M., …Tothill, N. (2023). Redshift Evolution of the Feedback–Cooling Equilibrium in the Core of 48 SPT Galaxy Clusters: A Joint Chandra–SPT–ATCA Analysis. Astrophysical Journal, 948(1), Article 49. https://doi.org/10.3847/1538-4357/acc38d

We analyze the cooling and feedback properties of 48 galaxy clusters at redshifts 0.4 < z < 1.3 selected from the South Pole Telescope (SPT) catalogs to evolve like the progenitors of massive and well-studied systems at z ∼ 0. We estimate the radio p... Read More about Redshift Evolution of the Feedback–Cooling Equilibrium in the Core of 48 SPT Galaxy Clusters: A Joint Chandra–SPT–ATCA Analysis.

The LOFAR Two-metre Sky Survey: Deep Fields Data Release 1. V. Survey description, source classifications and host galaxy properties (2023)
Journal Article
Best, P., Kondapally, R., Williams, W., Cochrane, R., Duncan, K., Hale, C., …van Weeren, R. (in press). The LOFAR Two-metre Sky Survey: Deep Fields Data Release 1. V. Survey description, source classifications and host galaxy properties. Monthly Notices of the Royal Astronomical Society, https://doi.org/10.1093/mnras/stad1308

Source classifications, stellar masses and star formation rates are presented for ≈80,000 radio sources from the first data release of the Low Frequency Array Two-metre Sky Survey (LoTSS) Deep Fields, which represents the widest deep radio survey eve... Read More about The LOFAR Two-metre Sky Survey: Deep Fields Data Release 1. V. Survey description, source classifications and host galaxy properties.

RXJ0437+00: constraining dark matter with exotic gravitational lenses (2023)
Journal Article
Lagattuta, D. J., Richard, J., Ebeling, H., Basto, Q., Cerny, C., Edge, A., …Massey, R. (2023). RXJ0437+00: constraining dark matter with exotic gravitational lenses. Monthly Notices of the Royal Astronomical Society, 522(1), 1091-1107. https://doi.org/10.1093/mnras/stad803

We present the first strong-gravitational-lensing analysis of the galaxy cluster RX J0437.1+0043 (RXJ0437; z = 0.285). Newly obtained, deep MUSE observations, Keck/MOSFIRE near-infrared spectroscopy, and Hubble Space Telescope SNAPshot imaging reveal... Read More about RXJ0437+00: constraining dark matter with exotic gravitational lenses.

Overview of the DESI Milky Way Survey (2023)
Journal Article
Cooper, A. P., Koposov, S. E., Allende Prieto, C., Manser, C. J., Kizhuprakkat, N., Myers, A. D., …Zou, H. (2023). Overview of the DESI Milky Way Survey. Astrophysical Journal, 947(1), Article 37. https://doi.org/10.3847/1538-4357/acb3c0

We describe the Milky Way Survey (MWS) that will be undertaken with the Dark Energy Spectroscopic Instrument (DESI) on the Mayall 4 m telescope at the Kitt Peak National Observatory. Over the next 5 yr DESI MWS will observe approximately seven millio... Read More about Overview of the DESI Milky Way Survey.

AGN STORM 2. III. A NICER View of the Variable X-Ray Obscurer in Mrk 817 (2023)
Journal Article
Partington, E. R., Cackett, E. M., Kara, E., Kriss, G. A., Barth, A. J., De Rosa, G., …Zaidouni, F. (2023). AGN STORM 2. III. A NICER View of the Variable X-Ray Obscurer in Mrk 817. Astrophysical Journal, 947(1), Article 2. https://doi.org/10.3847/1538-4357/acbf44

The AGN STORM 2 Collaboration targeted the Seyfert 1 galaxy Mrk 817 for a year-long multiwavelength, coordinated reverberation mapping campaign including Hubble Space Telescope, Swift, XMM-Newton, NICER, and ground-based observatories. Early observat... Read More about AGN STORM 2. III. A NICER View of the Variable X-Ray Obscurer in Mrk 817.

Abell 1201: detection of an ultramassive black hole in a strong gravitational lens (2023)
Journal Article
Nightingale, J., Smith, R. J., He, Q., O’Riordan, C. M., Kegerreis, J. A., Amvrosiadis, A., …Massey, R. J. (2023). Abell 1201: detection of an ultramassive black hole in a strong gravitational lens. Monthly Notices of the Royal Astronomical Society, 521(3), 3298-3322. https://doi.org/10.1093/mnras/stad587

Supermassive black holes (SMBHs) are a key catalyst of galaxy formation and evolution, leading to an observed correlation between SMBH mass MBH and host galaxy velocity dispersion σe. Outside the local Universe, measurements of MBH are usually only p... Read More about Abell 1201: detection of an ultramassive black hole in a strong gravitational lens.

The complex interplay of AGN jet-inflated bubbles and the intracluster medium (2023)
Journal Article
Huško, F., & Lacey, C. G. (2023). The complex interplay of AGN jet-inflated bubbles and the intracluster medium. Monthly Notices of the Royal Astronomical Society, 521(3), 4375-4394. https://doi.org/10.1093/mnras/stad793

We use SWIFT, a smoothed particle hydrodynamics code, to simulate the evolution of bubbles inflated by active galactic nuclei (AGNs) jets, as well as their interactions with the ambient intracluster medium (ICM). These jets inflate lobes that turn in... Read More about The complex interplay of AGN jet-inflated bubbles and the intracluster medium.

The hidden side of cosmic star formation at z > 3: Bridging optically dark and Lyman-break galaxies with GOODS-ALMA (2023)
Journal Article
Xiao, M., Elbaz, D., Gómez-Guijarro, C., Leroy, L., Bing, L., Daddi, E., …Silverman, J. (2023). The hidden side of cosmic star formation at z > 3: Bridging optically dark and Lyman-break galaxies with GOODS-ALMA. Astronomy & Astrophysics, 672, Article A18. https://doi.org/10.1051/0004-6361/202245100

Our current understanding of the cosmic star formation history at z > 3 is primarily based on UV-selected galaxies (Lyman-break galaxies, i.e., LBGs). Recent studies of H-dropouts (HST-dark galaxies) have revealed that we may be missing a large propo... Read More about The hidden side of cosmic star formation at z > 3: Bridging optically dark and Lyman-break galaxies with GOODS-ALMA.

The PAU Survey and Euclid: Improving broadband photometric redshifts with multi-task learning (2023)
Journal Article
Cabayol, L., Eriksen, M., Carretero, J., Casas, R., Castander, F., Fernández, E., …Tramacere, A. (2023). The PAU Survey and Euclid: Improving broadband photometric redshifts with multi-task learning. Astronomy & Astrophysics, 671, Article A153. https://doi.org/10.1051/0004-6361/202245027

Current and future imaging surveys require photometric redshifts (photo-zs) to be estimated for millions of galaxies. Improving the photo-z quality is a major challenge but is needed to advance our understanding of cosmology. In this paper we explore... Read More about The PAU Survey and Euclid: Improving broadband photometric redshifts with multi-task learning.

Host Dark Matter Halos of Wide-field Infrared Survey Explorer-selected Obscured and Unobscured Quasars: Evidence for Evolution (2023)
Journal Article
Petter, G. C., Hickox, R. C., Alexander, D. M., Myers, A. D., Geach, J. E., Whalen, K. E., & Andonie, C. P. (2023). Host Dark Matter Halos of Wide-field Infrared Survey Explorer-selected Obscured and Unobscured Quasars: Evidence for Evolution. Astrophysical Journal, 946(1), Article 27. https://doi.org/10.3847/1538-4357/acb7ef

Obscuration in quasars may arise from steep viewing angles along the dusty torus, or instead may represent a distinct phase of supermassive black hole growth. We test these scenarios by probing the host dark matter halo environments of ∼1.4 million W... Read More about Host Dark Matter Halos of Wide-field Infrared Survey Explorer-selected Obscured and Unobscured Quasars: Evidence for Evolution.

The MUSE Ultra Deep Field (MUDF). III. Hubble Space Telescope WFC3 Grism Spectroscopy and Imaging (2023)
Journal Article
Revalski, M., Rafelski, M., Fumagalli, M., Fossati, M., Pirzkal, N., Sunnquist, B., …Peroux, C. (2023). The MUSE Ultra Deep Field (MUDF). III. Hubble Space Telescope WFC3 Grism Spectroscopy and Imaging. Astrophysical Journal Supplement, 265(2), Article 40. https://doi.org/10.3847/1538-4365/acb8ae

We present extremely deep Hubble Space Telescope (HST) Wide Field Camera 3 (WFC3) observations of the MUSE Ultra Deep Field. This unique region of the sky contains two quasars at z ≈ 3.22 that are separated by only ∼500 kpc, providing a stereoscopic... Read More about The MUSE Ultra Deep Field (MUDF). III. Hubble Space Telescope WFC3 Grism Spectroscopy and Imaging.

Characterisation of detachment in the MAST-U Super-X divertor using multi-wavelength imaging of 2D atomic and molecular emission processes (2023)
Journal Article
Wijkamp, T., Allcock, J., Feng, X., Kool, B., Lipschultz, B., Verhaegh, K., …Jaspers, R. (2023). Characterisation of detachment in the MAST-U Super-X divertor using multi-wavelength imaging of 2D atomic and molecular emission processes. Nuclear Fusion, 63(5), Article 056003. https://doi.org/10.1088/1741-4326/acc191

In this work, we provide the first 2D spatially resolved description of radiative detachment in MAST-U Super-X L-mode divertor plasmas. The Super-X magnetic configuration was designed to achieve reduced heat- and particle loads at the divertor target... Read More about Characterisation of detachment in the MAST-U Super-X divertor using multi-wavelength imaging of 2D atomic and molecular emission processes.

MIRI/JWST observations reveal an extremely obscured starburst in the z = 6.9 system SPT0311-58 (2023)
Journal Article
Álvarez-Márquez, J., Crespo Gómez, A., Colina, L., Neeleman, M., Walter, F., Labiano, A., …Waelkens, C. (2023). MIRI/JWST observations reveal an extremely obscured starburst in the z = 6.9 system SPT0311-58. Astronomy & Astrophysics, 671, Article A105. https://doi.org/10.1051/0004-6361/202245400

Luminous infrared starbursts in the early Universe are thought to be the progenitors of massive quiescent galaxies identified at redshifts 2–4. Using the Mid-IRfrared Instrument (MIRI) on board the James Webb Space Telescope (JWST), we present mid-in... Read More about MIRI/JWST observations reveal an extremely obscured starburst in the z = 6.9 system SPT0311-58.

Evidence of an age gradient along the line of sight in the nuclear stellar disc of the Milky Way (2023)
Journal Article
Nogueras-Lara, F., Schultheis, M., Najarro, F., Sormani, M., Gadotti, D., & Rich, R. (2023). Evidence of an age gradient along the line of sight in the nuclear stellar disc of the Milky Way. Astronomy & Astrophysics, 671, Article L10. https://doi.org/10.1051/0004-6361/202345941

Context. The nuclear stellar disc (NSD) is a flat dense stellar structure at the heart of the Milky Way. Recent work has shown that analogous structures are common in the nuclei of external spiral galaxies, where there is evidence of an age gradient... Read More about Evidence of an age gradient along the line of sight in the nuclear stellar disc of the Milky Way.