Zobrazeno 1 - 10
of 4 308
pro vyhledávání: '"high redshift. [Galaxies]"'
Autor:
Iryna Chemerynska, Hakim Atek, Pratika Dayal, Lukas J. Furtak, Robert Feldmann, Jenny E. Greene, Michael V. Maseda, Themiya Nanayakkara, Pascal A. Oesch, Seiji Fujimoto, Ivo Labbé, Rachel Bezanson, Gabriel Brammer, Sam E. Cutler, Joel Leja, Richard Pan, Sedona H. Price, Bingjie Wang, John R. Weaver, Katherine E. Whitaker
Publikováno v:
The Astrophysical Journal Letters, Vol 976, Iss 1, p L15 (2024)
The mass–metallicity relation provides crucial insights into the baryon cycle in galaxies and strong constraints on galaxy formation models. We use JWST NIRSpec observations from the UNCOVER program to measure the gas-phase metallicity in a sample
Externí odkaz:
https://doaj.org/article/00d075d5664542659648d0466ba60203
Publikováno v:
The Astrophysical Journal Letters, Vol 974, Iss 2, p L35 (2024)
The recent JWST observation of the Firefly Sparkle at z = 8.3 offers a unique opportunity to link the high- and the low- z Universe. Indeed, the claim of it being a Milky Way (MW) type of assembly at the cosmic dawn opens the possibility of interpret
Externí odkaz:
https://doaj.org/article/4e706ffd5a9b4513a44d2a46bf350fef
Autor:
Kohei Inayoshi, Kohei Ichikawa
Publikováno v:
The Astrophysical Journal Letters, Vol 973, Iss 2, p L49 (2024)
The James Webb Space Telescope (JWST) has unveiled numerous massive black holes (BHs) in faint, broad-line active galactic nuclei (AGNs). The discovery highlights the presence of dust-reddened AGN populations, referred to as “little red dots (LRDs)
Externí odkaz:
https://doaj.org/article/7e80298c4ec44d7aac9ce4227129625d
Autor:
Fabrizio Gentile, Caitlin M. Casey, Hollis B. Akins, Maximilien Franco, Jed McKinney, Edward Berman, Olivia R. Cooper, Nicole E. Drakos, Michaela Hirschmann, Arianna S. Long, Georgios Magdis, Anton M. Koekemoer, Vasily Kokorev, Marko Shuntov, Margherita Talia, Natalie Allen, Santosh Harish, Olivier Ilbert, Henry Joy McCracken, Jeyhan S. Kartaltepe, Daizhong Liu, Louise Paquereau, Jason Rhodes, Michael R. Rich, Brant E. Robertson, Sune Toft, Ghassem Gozaliasl
Publikováno v:
The Astrophysical Journal Letters, Vol 973, Iss 1, p L2 (2024)
We present the properties of two candidate massive ( M _⋆ ∼ 10 ^11 M _⊙ ) and dusty ( A _v > 2.5 mag) galaxies at z = 5–7 in the first 0.28 deg ^2 of the COSMOS-Web survey. One object is spectroscopically confirmed at z _spec = 5.051, while t
Externí odkaz:
https://doaj.org/article/69c688185f4746fca1548f5f0cd93125
Publikováno v:
The Astrophysical Journal Letters, Vol 971, Iss 2, p L33 (2024)
We have used the Atacama Large Millimeter/submillimeter Array to map CO(3–2) emission from a galaxy, DLA-B1228g, associated with the high-metallicity damped Ly α absorber at z ≈ 2.1929 toward the QSO PKS B1228–113. At an angular resolution of
Externí odkaz:
https://doaj.org/article/727f79307a574fe6817ccff83e7e76d5
Autor:
Matthew J. Hayes, Jonathan C. Tan, Richard S. Ellis, Alice R. Young, Vieri Cammelli, Jasbir Singh, Axel Runnholm, Aayush Saxena, Ragnhild Lunnan, Benjamin W. Keller, Pierluigi Monaco, Nicolas Laporte, Jens Melinder
Publikováno v:
The Astrophysical Journal Letters, Vol 971, Iss 1, p L16 (2024)
We report the first results from a deep near-infrared campaign with the Hubble Space Telescope to obtain late-epoch images of the Hubble Ultra Deep Field, 10–15 yr after the first epoch data were obtained. The main objectives are to search for fain
Externí odkaz:
https://doaj.org/article/279b0b94b88b44e3bd93ff019a52f798
Publikováno v:
The Astrophysical Journal Letters, Vol 969, Iss 2, p L28 (2024)
We present COSBO-7, a strong millimeter source known for more than 16 yr that just revealed its near-to-mid-IR counterpart with the James Webb Space Telescope (JWST). The precise pinpointing by the Atacama Large Millimeter/submillimeter Array on the
Externí odkaz:
https://doaj.org/article/0f523b85d3604be88944e42f6272ca9c
Autor:
Bingjie Wang, Joel Leja, Anna de Graaff, Gabriel B. Brammer, Andrea Weibel, Pieter van Dokkum, Josephine F. W. Baggen, Katherine A. Suess, Jenny E. Greene, Rachel Bezanson, Nikko J. Cleri, Michaela Hirschmann, Ivo Labbé, Jorryt Matthee, Ian McConachie, Rohan P. Naidu, Erica Nelson, Pascal A. Oesch, David J. Setton, Christina C. Williams
Publikováno v:
The Astrophysical Journal Letters, Vol 969, Iss 1, p L13 (2024)
The identification of red, apparently massive galaxies at z > 7 in early James Webb Space Telescope (JWST) photometry suggests a strongly accelerated time line compared to standard models of galaxy growth. A major uncertainty in the interpretation is
Externí odkaz:
https://doaj.org/article/cc0fd3a12d50478f96afeb3af3f606cd
Publikováno v:
The Astrophysical Journal Letters, Vol 969, Iss 1, p L5 (2024)
JWST is producing high-quality rest-frame optical and UV spectra of faint galaxies at z > 4 for the first time, challenging models of galaxy and stellar populations. One galaxy recently observed at z = 5.943, GS9422, has nebular line and UV continuum
Externí odkaz:
https://doaj.org/article/5e909b86302448aebec07a3be07c3a1d
A NIRCam-dark Galaxy Detected with the MIRI/F1000W Filter in the MIDIS/JADES Hubble Ultra Deep Field
Autor:
Pablo G. Pérez-González, Pierluigi Rinaldi, Karina I. Caputi, Javier Álvarez-Márquez, Marianna Annunziatella, Danial Langeroodi, Thibaud Moutard, Leindert Boogaard, Edoardo Iani, Jens Melinder, Luca Costantin, Göran Östlin, Luis Colina, Thomas R. Greve, Gillian Wright, Almudena Alonso-Herrero, Arjan Bik, Sarah E. I. Bosman, Alejandro Crespo Gómez, Daniel Dicken, Andreas Eckart, Macarena García-Marín, Steven Gillman, Manuel Güdel, Thomas Henning, Jens Hjorth, Iris Jermann, Álvaro Labiano, Romain A. Meyer, Florian Peiβker, John P. Pye, Thomas P. Ray, Tuomo Tikkanen, Fabian Walter, Paul P. van der Werf
Publikováno v:
The Astrophysical Journal Letters, Vol 969, Iss 1, p L10 (2024)
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. The object is detected at signal-to-noise ratio (S/N) ∼ 6, with F1000W
Externí odkaz:
https://doaj.org/article/a6864e3da51340869872b3a5d0a98fe0