Zobrazeno 1 - 10
of 11 740
pro vyhledávání: '"Krumholz A"'
Supernova-driven galactic outflows play a vital but still poorly-understood role in galactic chemical evolution, and one of the largest uncertainties about them is the extent to which they consist of supernova ejecta that are unmixed, or only poorly-
Externí odkaz:
http://arxiv.org/abs/2410.14376
Autor:
Miller, Amy E., Slepian, Zachary, Lada, Elizabeth A., de Grijs, Richard, Cioni, Maria-Rosa L., Krumholz, Mark R., Bazkiaei, Amir E., Ivanov, Valentin D., Oliveira, Joana M., Ripepi, Vincenzo, van Loon, Jacco Th.
We present a novel method for automatically detecting and characterising semi-resolved star clusters: clusters where the observational point-spread function (PSF) is smaller than the cluster's radius, but larger than the separations between individua
Externí odkaz:
http://arxiv.org/abs/2410.14186
Autor:
Bialy, Shmuel, Burkhart, Blakesley, Seifried, Daniel, Sternberg, Amiel, Godard, Benjamin, Krumholz, Mark R., Walch, Stefanie, Hamden, Erika, Haworth, Thomas J., Turner, Neal J., Lee, Min-Young, Kong, Shuo
Molecular clouds (MCs) are the birthplaces of new stars in galaxies. A key component of MCs are photodissociation regions (PDRs), where far-ultraviolet radiation plays a crucial role in determining the gas's physical and chemical state. Traditional P
Externí odkaz:
http://arxiv.org/abs/2408.06416
Mixed-frame formulations of radiation-hydrodynamics (RHD), where the radiation quantities are computed in an inertial frame but matter quantities are in a comoving frame, are advantageous because they admit algorithms that conserve energy and momentu
Externí odkaz:
http://arxiv.org/abs/2407.18304
Autor:
Axen, Margot Fitz, Offner, Stella, Hopkins, Phillip F., Krumholz, Mark R., Grudic, Michael Y.
Cosmic rays (CRs) are the primary driver of ionization in star forming molecular clouds (MCs). Despite their potential impacts on gas dynamics and chemistry, no simulations of star cluster formation following the creation of individual stars have inc
Externí odkaz:
http://arxiv.org/abs/2407.17597
The gas-phase metallicity distribution within galaxies records critical information about galactic evolution. In this work we investigate how active galactic nuclei (AGN) influence this distribution by measuring the two-point correlation functions of
Externí odkaz:
http://arxiv.org/abs/2407.04252
Cosmic rays travelling through interstellar space have their propagation directions repeatedly scattered by fluctuating interstellar magnetic fields. The nature of this scattering is a major unsolved problem in astrophysics, one that has resisted sol
Externí odkaz:
http://arxiv.org/abs/2406.18160
This study examines the limitations of H$\alpha$ luminosity as a tracer of star formation rates (SFR) in spatially resolved observations. We carry out high-resolution simulations of a Milky Way-like galaxy including both supernova and photoionization
Externí odkaz:
http://arxiv.org/abs/2406.11155
Autor:
Mandelker, Nir, Ginzburg, Omry, Dekel, Avishai, Bournaud, Frederic, Krumholz, Mark R., Ceverino, Daniel, Primack, Joel
We address the formation of giant clumps in violently unstable gas-rich disc galaxies at cosmic noon. While these are commonly thought to originate from gravitational Toomre instability, cosmological simulations have indicated that clumps form even i
Externí odkaz:
http://arxiv.org/abs/2406.07633
Autor:
Calzetti, Daniela, Adamo, Angela, Linden, Sean T., Gregg, Benjamin, Krumholz, Mark R., Bajaj, Varun, Bik, Arjan, Cignoni, Michele, Correnti, Matteo, Elmegreen, Bruce, Vieira, Helena Faustino, Gallagher, John S., Grasha, Kathryn, Gutermuth, Robert A., Johnson, Kelsey E., Messa, Matteo, Melinder, Jens, Ostlin, Goran, Pedrini, Alex, Sabbi, Elena, Smith, Linda J., Tosi, Monica
New JWST near-infrared imaging of the nearby galaxy NGC 628 from the Cycle 1 program JWST-FEAST is combined with archival JWST mid-infrared imaging to calibrate the 21 $\mu$m emission as a star formation rate indicator (SFR) at $\sim$120 pc scales. T
Externí odkaz:
http://arxiv.org/abs/2406.01831