Zobrazeno 1 - 10
of 988
pro vyhledávání: '"Photodissociation regions"'
Akademický článek
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Akademický článek
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Autor:
Akanksha Bij, Laura M. Fissel, Lars Bonne, Nicola Schneider, Marc Berthoud, Dennis Lee, Giles A. Novak, Sarah I. Sadavoy, Thushara G. S. Pillai, Maria Cunningham, Paul Jones, Robert Simon
Publikováno v:
The Astrophysical Journal, Vol 975, Iss 2, p 267 (2024)
We use polarization data from SOFIA HAWC+ to investigate the interplay between magnetic fields and stellar feedback in altering gas dynamics within the high-mass star-forming region RCW 36, located in Vela C. This region is of particular interest as
Externí odkaz:
https://doaj.org/article/a630b2f5439842ebac4df618c70d0d20
Autor:
Blakesley Burkhart, Shmuel Bialy, Daniel Seifried, Stefanie Walch, Erika Hamden, Thomas J. Haworth, Keri Hoadley, Shuo Kong, Madisen Johnson, Sarah Jeffreson, Mark R. Krumholz, Min-Young Lee, Amiel Sternberg, Neal J. Turner
Publikováno v:
The Astrophysical Journal, Vol 975, Iss 2, p 269 (2024)
Molecular hydrogen (H _2 ) formation and dissociation are key processes that drive the gas life cycle in galaxies. Using the SImulating the LifeCycle of Molecular Clouds zoom-in simulation suite, we explore the utility of future observations of H _2
Externí odkaz:
https://doaj.org/article/5e489eb99da049be9e950f2c2426d64d
Autor:
Alex Pedrini, Angela Adamo, Daniela Calzetti, Arjan Bik, Benjamin Gregg, Sean T. Linden, Varun Bajaj, Jenna E. Ryon, Ahmad A. Ali, Giacomo Bortolini, Matteo Correnti, Bruce G. Elmegreen, Debra Meloy Elmegreen, John S. Gallagher, Kathryn Grasha, Robert A. Gutermuth, Kelsey E. Johnson, Jens Melinder, Matteo Messa, Göran Östlin, Elena Sabbi, Linda J. Smith, Monica Tosi, Helena Faustino Vieira
Publikováno v:
The Astrophysical Journal, Vol 971, Iss 1, p 32 (2024)
We investigate the emergence phase of young star clusters in the nearby spiral galaxy NGC 628. We use JWST NIRCam and MIRI observations to create spatially resolved maps of the Pa α 1.87 μ m and Br α 4.05 μ m hydrogen recombination lines, as well
Externí odkaz:
https://doaj.org/article/0d1687355a364bc9ae6503ebfbed9390
Autor:
Andrew Mizener, Alexandra Pope, Jed McKinney, Patrick Kamieneski, Katherine E. Whitaker, Andrew Battisti, Eric Murphy
Publikováno v:
The Astrophysical Journal, Vol 970, Iss 1, p 30 (2024)
We present the molecular gas content and interstellar medium conditions of MACS J0717_Az9, a strong gravitationally lensed z = 4.273, M _* ≃ 2 × 10 ^9 M _⊙ star-forming galaxy with an unusually high (∼80%) obscured star formation fraction. We
Externí odkaz:
https://doaj.org/article/40dd1595eb734594a33ac6d9303e2d59
Autor:
Ngo-Duy Tung, Le Ngoc Tram, Archana Soam, William T. Reach, Edwin Das, Ed Chambers, Blesson Mathew, Heiko Richter
Publikováno v:
The Astrophysical Journal, Vol 969, Iss 2, p 113 (2024)
We study the kinematics of a pillar, namely G287.76-0.87, using three rotational lines of ^12 CO(5-4), ^12 CO(8-7), ^12 CO(11-10), and a fine structure line of [O i ] 63 μ m in southern Carina observed by SOFIA/GREAT. This pillar is irradiated by th
Externí odkaz:
https://doaj.org/article/1bcebb9304c04015a0c77be783cd6a75
Autor:
James M. Jackson, J. Scott Whitaker, Edward Chambers, Robert Simon, Cristian Guevara, David Allingham, Philippa Patterson, Nicholas Killerby-Smith, Jacob Askew, Thomas Vandenberg, Howard A. Smith, Patricio Sanhueza, Ian W. Stephens, Lars Bonne, Fiorella L. Polles, Anika Schmiedeke, Netty Honigh, Matthias Justen
Publikováno v:
The Astrophysical Journal, Vol 965, Iss 2, p 187 (2024)
Using the upGREAT instrument on board the Stratospheric Observatory for Infrared Astronomy, we imaged [C ii ] 157.74 and [O i ] 63.18 μ m line emission from a bright photodissociation region (PDR) associated with an ionized bubble located in the Nes
Externí odkaz:
https://doaj.org/article/c6acca09c3784b24a39a254e8e05e00a
Autor:
Helgi Rafn Hrodmarsson, Martin Schwell, Nicolas Fray, Jean-Claude Guillemin, Majdi Hochlaf, Emilie-Laure Zins
Publikováno v:
The Astrophysical Journal, Vol 964, Iss 1, p 26 (2024)
The molecule 2-aminopropionitrile (2-APN; H _3 CCH(NH _2 )CN) is a chiral precursor of the amino acid alanine and could play an important role in the emergence of the homochirality of life. To date, 2-APN has not yet been detected in the interstellar
Externí odkaz:
https://doaj.org/article/b1f93ff23e8a489bbe76cfbaa8175b64
Publikováno v:
The Astrophysical Journal Letters, Vol 959, Iss 2, p L27 (2023)
The central star and its energetic radiation fields play a vital role in setting the vertical and radial chemical structure of planet-forming disks. We present observations that, for the first time, clearly reveal the UV-irradiated surface of a proto
Externí odkaz:
https://doaj.org/article/ae4bfa1c28d8463fa704881455d842ca