Outputs (47)

Connecting Lyα and Ionizing Photon Escape in the Sunburst Arc (2024)
Journal Article
Owens, M. R., Kim, K. J., Bayliss, M. B., Rivera-Thorsen, T. E., Sharon, K., Rigby, J. R., Navarre, A., Florian, M., Gladders, M. D., Burns, J. G., Khullar, G., Chisholm, J., Mahler, G., Dahle, H., Malhas, C. M., Welch, B., Hutchison, T. A., Gassis, R., Choe, S., & Adhikari, P. (2024). Connecting Lyα and Ionizing Photon Escape in the Sunburst Arc. Astrophysical Journal, 977(2), Article 234. https://doi.org/10.3847/1538-4357/ad9247

We investigate the Lyα and Lyman continuum (LyC) properties of the Sunburst Arc, a z = 2.37 gravitationally lensed galaxy with a multiply imaged, compact region leaking LyC and a triple-peaked Lyα profile indicating direct Lyα escape. Non-LyC-leaking... Read More about Connecting Lyα and Ionizing Photon Escape in the Sunburst Arc.

ALMA Lensing Cluster Survey: Deep 1.2 mm Number Counts and Infrared Luminosity Functions at z ≃ 1–8 (2024)
Journal Article
Fujimoto, S., Kohno, K., Ouchi, M., Oguri, M., Kokorev, V., Brammer, G., Sun, F., González-López, J., Bauer, F. E., Caminha, G. B., Hatsukade, B., Richard, J., Smail, I., Tsujita, A., Ueda, Y., Uematsu, R., Zitrin, A., Coe, D., Kneib, J.-P., Postman, M., …Wang, W.-H. (2024). ALMA Lensing Cluster Survey: Deep 1.2 mm Number Counts and Infrared Luminosity Functions at z ≃ 1–8. Astrophysical Journal Supplement, 275(2), Article 36. https://doi.org/10.3847/1538-4365/ad5ae2

We present a statistical study of 180 dust continuum sources identified in 33 massive cluster fields by the Atacama Large Millimeter/submillimeter Array Lensing Cluster Survey (ALCS) over a total of 133 arcmin2 area, homogeneously observed at 1.2 mm.... Read More about ALMA Lensing Cluster Survey: Deep 1.2 mm Number Counts and Infrared Luminosity Functions at z ≃ 1–8.

Efficient Point-spread Function Modeling with ShOpt.jl: A Point-spread Function Benchmarking Study with JWST NIRCam Imaging (2024)
Journal Article
Berman, E. M., McCleary, J. E., Koekemoer, A. M., Franco, M., Drakos, N. E., Liu, D., Nightingale, J. W., Shuntov, M., Scognamiglio, D., Massey, R., Mahler, G., McCracken, H. J., Robertson, B. E., Faisst, A. L., Casey, C. M., & Kartaltepe, J. S. (2024). Efficient Point-spread Function Modeling with ShOpt.jl: A Point-spread Function Benchmarking Study with JWST NIRCam Imaging. Astronomical Journal, 168(4), Article 174. https://doi.org/10.3847/1538-3881/ad6a0f

With their high angular resolutions of 30–100 mas, large fields of view, and complex optical systems, imagers on next-generation optical/near-infrared space observatories, such as the Near-Infrared Camera (NIRCam) on the James Webb Space Telescope, p... Read More about Efficient Point-spread Function Modeling with ShOpt.jl: A Point-spread Function Benchmarking Study with JWST NIRCam Imaging.

Unveiling the Distant Universe: Characterizing z ≥ 9 Galaxies in the First Epoch of COSMOS-Web (2024)
Journal Article
Franco, M., Akins, H. B., Casey, C. M., Finkelstein, S. L., Shuntov, M., Chworowsky, K., Faisst, A. L., Fujimoto, S., Ilbert, O., Koekemoer, A. M., Liu, D., Lovell, C. C., Maraston, C., McCracken, H. J., McKinney, J., Robertson, B. E., Bagley, M. B., Champagne, J. B., Cooper, O. R., Ding, X., …Zavala, J. A. (2024). Unveiling the Distant Universe: Characterizing z ≥ 9 Galaxies in the First Epoch of COSMOS-Web. The Astrophysical Journal, 973(1), Article 23. https://doi.org/10.3847/1538-4357/ad5e6a

We report the identification of 15 galaxy candidates at z ≥ 9 using the initial COSMOS-Web JWST observations over 77 arcmin2 through four Near Infrared Camera filters (F115W, F150W, F277W, and F444W) with an overlap with the Mid-Infrared Imager (F770... Read More about Unveiling the Distant Universe: Characterizing z ≥ 9 Galaxies in the First Epoch of COSMOS-Web.

The KALEIDOSCOPE survey : A new strong and weak gravitational lensing view of the massive galaxy cluster MACS J1423.8+2404 (2024)
Journal Article
Patel, N. R., Jauzac, M., Niemiec, A., Lagattuta, D., Mahler, G., Beauchesne, B., Edge, A., Ebeling, H., & Limousin, M. (2024). The KALEIDOSCOPE survey : A new strong and weak gravitational lensing view of the massive galaxy cluster MACS J1423.8+2404. Monthly Notices of the Royal Astronomical Society, 533(4), 4500-4514. https://doi.org/10.1093/mnras/stae2069

We present a combined strong and weak gravitational-lensing analysis of the massive galaxy cluster MACS J1423.8+2404 (z = 0.545, MACS J1423 hereafter), one of the most dynamically relaxed and massive cool-core clusters discovered in the MAssive Clust... Read More about The KALEIDOSCOPE survey : A new strong and weak gravitational lensing view of the massive galaxy cluster MACS J1423.8+2404.

A complex node of the cosmic web associated with the massive galaxy cluster MACS J0600.1-2008 (2024)
Journal Article
Furtak, L. J., Zitrin, A., Richard, J., Eckert, D., Sayers, J., Ebeling, H., Fujimoto, S., Laporte, N., Lagattuta, D., Limousin, M., Mahler, G., Meena, A. K., Andrade-Santos, F., Frye, B. L., Jauzac, M., Koekemoer, A. M., Kohno, K., Espada, D., Lu, H., Massey, R., & Niemiec, A. (2024). A complex node of the cosmic web associated with the massive galaxy cluster MACS J0600.1-2008. Monthly Notices of the Royal Astronomical Society, 533(2), 2242-2261. https://doi.org/10.1093/mnras/stae1943

The Galaxy–Galaxy Strong Lensing Cross Section and the Internal Distribution of Matter in ΛCDM Substructure (2024)
Journal Article
Tokayer, Y. M., Dutra, I., Natarajan, P., Mahler, G., Jauzac, M., & Meneghetti, M. (2024). The Galaxy–Galaxy Strong Lensing Cross Section and the Internal Distribution of Matter in ΛCDM Substructure. The Astrophysical Journal, 970(2), Article 143. https://doi.org/10.3847/1538-4357/ad51fd

Strong gravitational lensing offers a powerful probe of the detailed distribution of matter in lenses, while magnifying and bringing faint background sources into view. Observed strong lensing by massive galaxy clusters, which are often in complex dy... Read More about The Galaxy–Galaxy Strong Lensing Cross Section and the Internal Distribution of Matter in ΛCDM Substructure.

Self-consistent Combined HST, K -band, and Spitzer Photometric Catalogs of the BUFFALO Survey Fields (2024)
Journal Article
Pagul, A., Sánchez, F. J., Davidzon, I., Koekemoer, A. M., Mobasher, B., Jauzac, M., Steinhardt, C. L., Atek, H., Cen, R., Chemerynska, I., Furtak, L. J., Lagattuta, D. J., Mahler, G., Montes, M., Nonino, M., Sharon, K., & Weaver, J. R. (2024). Self-consistent Combined HST, K -band, and Spitzer Photometric Catalogs of the BUFFALO Survey Fields. Astrophysical Journal Supplement, 273(1), Article 10. https://doi.org/10.3847/1538-4365/ad40a1

This article presents new astronomical source catalogs using data from the BUFFALO Survey. These catalogs contain detailed information for over 100,000 astronomical sources in the six BUFFALO clusters: A370, A2744, AS1063, MACS 0416, MACS 0717, and M... Read More about Self-consistent Combined HST, K -band, and Spitzer Photometric Catalogs of the BUFFALO Survey Fields.

The COSMOS-Web ring: In-depth characterization of an Einstein ring lensing system at z ∼ 2 (2024)
Journal Article
Mercier, W., Shuntov, M., Gavazzi, R., Nightingale, J. W., Arango, R., Ilbert, O., Amvrosiadis, A., Ciesla, L., Casey, C. M., Jin, S., Faisst, A. L., Andika, I. T., Drakos, N. E., Enia, A., Franco, M., Gillman, S., Gozaliasl, G., Hayward, C. C., Huertas-Company, M., Kartaltepe, J. S., …Vijayan, A. P. (2024). The COSMOS-Web ring: In-depth characterization of an Einstein ring lensing system at z ∼ 2. Astronomy & Astrophysics, 687, Article A61. https://doi.org/10.1051/0004-6361/202348095

Aims. We provide an in-depth analysis of the COSMOS-Web ring, an Einstein ring at z ≈ 2 that we serendipitously discovered during the data reduction of the COSMOS-Web survey and that could be the most distant lens discovered to date.

Methods. We e... Read More about The COSMOS-Web ring: In-depth characterization of an Einstein ring lensing system at z ∼ 2.

Bound star clusters observed in a lensed galaxy 460 Myr after the Big Bang (2024)
Journal Article
Adamo, A., Bradley, L. D., Vanzella, E., Claeyssens, A., Welch, B., Diego, J. M., Mahler, G., Oguri, M., Sharon, K., Abdurro’uf, Hsiao, T. Y.-Y., Xu, X., Messa, M., Lassen, A. E., Zackrisson, E., Brammer, G., Coe, D., Kokorev, V., Ricotti, M., Zitrin, A., …Tamura, Y. (2024). Bound star clusters observed in a lensed galaxy 460 Myr after the Big Bang. Nature, 632(8025), 513-516. https://doi.org/10.1038/s41586-024-07703-7

The Cosmic Gems arc is among the brightest and highly magnified galaxies observed at redshift z ≈ 10.2 (ref. 1). However, it is an intrinsically ultraviolet faint galaxy, in the range of those now thought to drive the reionization of the Universe2–4.... Read More about Bound star clusters observed in a lensed galaxy 460 Myr after the Big Bang.