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Eric Emsellem, Jessica Sutter, Ryan Chown, Adam K. Leroy et autres
Galactic bars are thought to play a critical role in the secular evolution of their hosts by, for example, reorganising the interstellar medium (ISM). We used a sample of 57 star-forming disc galaxies observed with JWST at 3 and 7.7 µm to …
Eric Emsellem, Jessica Sutter, Ryan Chown, Adam Leroy et autres
Galactic bars are thought to play a critical role in the secular evolution of their hosts by, for example, reorganising the interstellar medium (ISM). We used a sample of 57 star-forming disc galaxies observed with JWST at 3 and 7.7 µm to …
fr, us, ca, de, gb, nl, jp, cl, au, es, cn (code pays fourni par la source)
Adam K. Leroy, Jiayi 嘉懿 Sun 孙, Sharon Meidt, Oscar Agertz et autres
Erratum: “Cloud-scale Gas Properties, Depletion Times, and Star Formation Efficiency per Freefall Time in PHANGS–ALMA” (2025, ApJ, 985, 14), Leroy, Adam K., Sun, Jiayi, Meidt, Sharon, Agertz, Oscar, Chiang, I-Da, Gensior, Jindra, Glover, Simon C. O., Gnedin, Oleg Y., Hughes, Annie, Schinnerer, …
us, be, se, tw, ch, gb, de, au, es, ca, jp (code pays fourni par la source)
Damian R. Gleis, Sophia K. Stuber, Eva Schinnerer, Justus Neumann et autres
Context. Nearby galaxies exhibit a variety of structures, including so-called central or (circum-)nuclear rings that are similar to the Milky Way (MW) Central Molecular Zone (CMZ). These rings are common in barred galaxies and can be gas-rich and highly star-forming. Aims. We …
fr, de, be, es, us, ca, cz, au, tw, it, gb (code pays fourni par la source)
Damian R. Gleis, Sophia K. Stuber, Eva Schinnerer, Justus Neumann et autres
Context. Nearby galaxies exhibit a variety of structures, including so-called central or (circum-)nuclear rings that are similar to the Milky Way (MW) Central Molecular Zone (CMZ). These rings are common in barred galaxies and can be gas-rich and highly star-forming. Aims. We …
de, jp, be, es, fr, us, ca, au, tw, it, gb (code pays fourni par la source)
Damian R. Gleis, Sophia K. Stuber, Eva Schinnerer, Justus Neumann et autres
Nearby galaxies exhibit a variety of structures, including central rings, similar to the MW Central Molecular Zone (CMZ). These rings are common in barred galaxies and can be gas-rich and highly star-forming. We aim to study molecular gas content and star formation …
Sophia K. Stuber, Eva Schinnerer, A. Usero, Frank Bigiel et autres
Tracing dense molecular gas, the fuel for star formation, is essential for understanding the evolution of molecular clouds and star-formation processes. We compared the emission of HCN (1–0), HNC (1–0), and HCO+(1–0) with the emission of N2H+(1–0) at cloud scales (125 pc) …
Miguel Querejeta, Sharon E. Meidt, Yixian Cao, Dario Colombo et autres
Spiral arms play a central role in disc galaxies, but their dynamical nature remains a long-standing open question. Azimuthal offsets between molecular gas and star formation are expected if gas crosses spiral arms, as predicted by quasi-stationary density wave theory. In this …
Sharon E. Meidt, Simon C. O. Glover, Ralf S. Klessen, Adam K. Leroy et autres
New extragalactic measurements of the cloud population-averaged star formation efficiency per free-fall time, ϵ ff , from PHANGS show little sign of a theoretically predicted dependence on the gas virial level and weak variation with cloud-scale gas velocity dispersion. We explore ways …
Pierrick Verwilghen, Éric Emsellem, Florent Renaud, Oscar Agertz et autres
Recent hydrodynamical simulations of isolated barred disc galaxies have suggested a structural change in the distribution of the interstellar medium (ISM) around a stellar mass M* of 1010 M⊙. In the higher-mass regime (M∗ ≥ 1010 M⊙), we observe the formation of …
Adam K. Leroy, Jiayi Sun, Sharon E. Meidt, Oscar Agertz et autres
Abstract We compare measurements of star formation efficiency to cloud-scale gas properties across the PHANGS– ALMA sample. Dividing 67 galaxies into 1.5 kpc scale regions, we calculate the molecular gas depletion time τ dep mol = Σ mol / Σ SFR and …
us, be, se, tw, ch, gb, de, au, es, ca, jp (code pays fourni par la source)
Sophia K. Stuber, J. Pety, A. Usero, Eva Schinnerer et autres
We present Surveying the Whirlpool at Arcseconds with NOEMA (SWAN), a high-resolution, high-sensitivity survey to map molecular lines in the 3 mm band in M51 (the Whirlpool galaxy). SWAN has obtained the largest high-sensitivity map (∼5 × 7 kpc2) of N2H+ emission …
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