Zobrazeno 1 - 10
of 5 966
pro vyhledávání: '"Galaxy structure"'
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Autor:
Chloë E. Benton, Erica J. Nelson, Tim B. Miller, Rachel Bezanson, Justus Gibson, Abigail I Hartley, Marco Martorano, Sedona H. Price, Katherine A. Suess, Arjen van der Wel, Pieter van Dokkum, John R. Weaver, Katherine E. Whitaker
Publikováno v:
The Astrophysical Journal Letters, Vol 974, Iss 2, p L28 (2024)
Hubble Space Telescope imaging shows that most star-forming galaxies at cosmic noon—the peak of cosmic star formation history—appear disk-dominated, leaving the origin of the dense cores in their quiescent descendants unclear. With the James Webb
Externí odkaz:
https://doaj.org/article/54e7bc9ce373440e942b661984bdedf3
Publikováno v:
The Astrophysical Journal Letters, Vol 972, Iss 2, p L26 (2024)
We investigate the contribution of host galaxies to the overall dispersion measures (DMs) for fast radio bursts (FRBs) using the Feedback in Realistic Environments (FIRE-2) cosmological zoom-in simulation suite. We calculate DMs from every star parti
Externí odkaz:
https://doaj.org/article/91d7273753214fd1a515aa8235863963
Autor:
Yang Su, Shiyu Zhang, Yan Sun, Ji Yang, Qing-Zeng Yan, Shaobo Zhang, Zhiwei Chen, Xuepeng Chen, Xin Zhou, Lixia Yuan
Publikováno v:
The Astrophysical Journal Letters, Vol 971, Iss 1, p L6 (2024)
We study the gas inflows toward the Galactic Central Molecular Zone (CMZ) based on the gas morphological and kinematic features from the Milky Way Imaging Scroll Painting in the region of l = 1.°2–19.°0 and ∣ b ∣ ≲ 3.°0. We find that the n
Externí odkaz:
https://doaj.org/article/f658a64fff9a482495cc72d5d3845c47
Publikováno v:
The Astrophysical Journal Letters, Vol 967, Iss 2, p L40 (2024)
Whereas well-studied galaxies at cosmic noon are found to be baryon dominated within the effective radius, recent JWST observations of z ∼ 6–7 galaxies with stellar masses of only M _* ∼ 10 ^8−9 M _⊙ surprisingly indicate that they are dark
Externí odkaz:
https://doaj.org/article/2ad733aa80044fe282e874c47da4ea84
Autor:
Sam E. Cutler, Katherine E. Whitaker, John R. Weaver, Bingjie Wang, Richard Pan, Rachel Bezanson, Lukas J. Furtak, Ivo Labbe, Joel Leja, Sedona H. Price, Yingjie Cheng, Maike Clausen, Fergus Cullen, Pratika Dayal, Anna de Graaff, Mark Dickinson, James S. Dunlop, Robert Feldmann, Marijn Franx, Mauro Giavalisco, Karl Glazebrook, Jenny E. Greene, Norman A. Grogin, Garth Illingworth, Anton M. Koekemoer, Vasily Kokorev, Danilo Marchesini, Michael V. Maseda, Tim B. Miller, Themiya Nanayakkara, Erica J. Nelson, David J. Setton, Heath Shipley, Katherine A. Suess
Publikováno v:
The Astrophysical Journal Letters, Vol 967, Iss 2, p L23 (2024)
We present a measurement of the low-mass quiescent size–mass relation at cosmic noon (1 < z < 3) from the JWST PRIMER and UNCOVER treasury surveys, which highlights two distinct classes of quiescent galaxies. While the massive population is well st
Externí odkaz:
https://doaj.org/article/f6e5d702958d4b84bf88e0eb5ed80ea5
Autor:
Sakurako Okamoto, Annette M. N. Ferguson, Nobuo Arimoto, Itsuki Ogami, Rokas Žemaitis, Masashi Chiba, Mike J. Irwin, In Sung Jang, Jin Koda, Yutaka Komiyama, Myung Gyoon Lee, Jeong Hwan Lee, Michael R. Rich, Masayuki Tanaka, Mikito Tanaka
Publikováno v:
The Astrophysical Journal Letters, Vol 967, Iss 2, p L24 (2024)
We present the discovery of NGC253-SNFC-dw1, a new satellite galaxy in the remote stellar halo of the Sculptor Group spiral, NGC 253. The system was revealed using deep, resolved star photometry obtained as part of the Subaru Near-Field Cosmology Sur
Externí odkaz:
https://doaj.org/article/6a4d3250aa674109ab3067ad3eb31b26
Autor:
Ronaldo Laishram, Tadayuki Kodama, Takahiro Morishita, Andreas Faisst, Yusei Koyama, Naoaki Yamamoto
Publikováno v:
The Astrophysical Journal Letters, Vol 964, Iss 2, p L33 (2024)
We explore the morphological features and star formation activities of [O ii ] emitters in the COSMOS UltraDeep field at z ∼ 1.5 using JWST NIRCam data from the COSMOS-Web survey and Subaru Hyper Suprime-Cam. We also report the discovery of large f
Externí odkaz:
https://doaj.org/article/316eca30e45a40f69ce5acdf52aa2f33
Autor:
Elia Cenci, Robert Feldmann, Jindra Gensior, James S. Bullock, Jorge Moreno, Luigi Bassini, Mauro Bernardini
Publikováno v:
The Astrophysical Journal Letters, Vol 961, Iss 2, p L40 (2024)
A kinematic misalignment of the stellar and gas components is a phenomenon observed in a significant fraction of galaxies. However, the underlying physical mechanisms are not well understood. A commonly proposed scenario for the formation of a misali
Externí odkaz:
https://doaj.org/article/6c195fe1ecbd480aa58f6a9397859269
Publikováno v:
Astronomy, Vol 2, Iss 2, Pp 90-104 (2023)
The phenomenon of the Dark matter baffles the researchers: the underlying dark particle has escaped so far the detection and its astrophysical role appears complex and entangled with that of the standard luminous particles. We propose that, in order
Externí odkaz:
https://doaj.org/article/4c0c2155c1ca413c8fd66cc79a5e0e1d