English
Related papers

Related papers: PHANGS-JWST First Results: A statistical view on b…

200 papers

We report the discovery of intertwined/entangled sub-structures towards the bubble wall of NGC 3324 below a physical scale of 4500 AU, which is the sharp edge/ionization front/elongated structure traced at the interface between the HII…

Astrophysics of Galaxies · Physics 2023-09-26 L. K. Dewangan , A. K. Maity , Y. D. Mayya , N. K. Bhadari , Suman Bhattacharyya , Saurabh Sharma , Gourav Banerjee

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$\alpha$-1.87 $\mu$m and Br$\alpha$-4.05 $\mu$m hydrogen…

In this paper we address the question whether star formation is driven by local processes or the large scale environment. To do so, we investigate star formation in collisional debris where the gravitational potential well and velocity…

Cosmology and Nongalactic Astrophysics · Physics 2009-11-13 M. Boquien , P. -A. Duc , Y. Wu , V. Charmandaris , U. Lisenfeld , J. Braine , E. Brinks , J. Iglesias-Páramo , C. K. Xu

We present a study of the star formation (SF) region G38.9-0.4 using publicly available multiwavelength Galactic Plane surveys from ground- and space-based observatories. This region is composed of four bright mid-IR bubbles and numerous…

Astrophysics of Galaxies · Physics 2015-06-15 Michael J. Alexander , Henry A. Kobulnicky , Charles R. Kerton , Kim Arvidsson

We investigate the star formation-feedback cycle in cosmological galaxy formation simulations, focusing on progenitors of Milky Way (MW)-sized galaxies. We find that in order to reproduce key properties of the MW progenitors, such as…

Astrophysics of Galaxies · Physics 2015-06-19 Oscar Agertz , Andrey V. Kravtsov

Modern data empower observers to describe galaxies as the spatially and biographically complex objects they are. We illustrate this through case studies of four, $z\sim1.3$ systems based on deep, spatially resolved, 17-band + G102 + G141…

We use simulations with realistic models for stellar feedback to study galaxy mergers. These high resolution (1 pc) simulations follow formation and destruction of individual GMCs and star clusters. The final starburst is dominated by in…

Cosmology and Nongalactic Astrophysics · Physics 2013-07-02 Philip F. Hopkins , Thomas J. Cox , Lars Hernquist , Desika Narayanan , Christopher C. Hayward , Norman Murray

The matter cycle between gas clouds and stars in galaxies plays a crucial role in regulating galaxy evolution through feedback mechanisms. In turn, the local and global galactic environments shape the interstellar medium and provide the…

High-resolution JWST images of nearby spiral galaxies reveal polycyclic aromatic hydrocarbon (PAH) emission structures that trace molecular gas, including CO-dark regions. We identify ISM cloud structures in PHANGS-JWST 7.7 $\mu$m PAH maps…

The star formation history of nearby early-type galaxies is investigated via numerical modelling. Idealized hydrodynamical N-body simulations with a star formation prescription are used to study the minor merger process between a giant…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 S. Peirani , R. M. Crockett , S. Geen , S. Khochfar , S. Kaviraj , J. Silk

We analyze the Near Infrared ($\sim0.8-1\mu$m) rest-frame morphologies of galaxies with $\log M_*/M_\odot>9$ in the redshift range $0<z<6$, compare with previous HST-based results and release the first JWST-based morphological catalog of…

We study the evolution of the interstellar and circumstellar media around massive stars (M > 40M_{\odot}) from the main sequence through to the Wolf-Rayet stage by means of radiationhydrodynamic simulations. We use publicly available…

Solar and Stellar Astrophysics · Physics 2015-05-28 J. A. Toalá , S. J. Arthur

We have investigated how the incidence of star-forming galaxies varies with the environment using a volume-limited sample of nearby galaxy spectra extracted from the 2dF Galaxy Redshift Survey. The environment is characterized by the local…

Astrophysics · Physics 2007-05-23 Laerte Sodre , Abilio Mateus

Recent studies suggest that most star-forming regions in our Galaxy form stellar associations rather than bound clusters. We analyse models from the STARFORGE simulation suite, a set of magneto-hydrodynamical simulations that include all…

Astrophysics of Galaxies · Physics 2025-06-03 Juan P. Farias , Stella S. R. Offner , Ronan Kerr , Michael Y. Grudić

We investigate photometric properties of spiral arms and stellar complexes/associations inside these arms in the grand design NGC 628 (M74) galaxy.We analyze GALEX ultraviolet, optical UBVRI, and H-alpha? surface photometry data, including…

Cosmology and Nongalactic Astrophysics · Physics 2013-06-10 Alexander S. Gusev , Yuri N. Efremov

We present multiband photometric observations of three spiral galaxies selected in a sample suited for the study of young stellar groupings and their relationship with the parent galaxy and the galactic environment. Star forming regions…

Astrophysics · Physics 2007-05-23 P. Battinelli , R. Capuzzo-Dolcetta , P. W. Hodge , A. Vicari , T. K. Wyder

Massive stars produce copious quantities of ultraviolet radiation beyond the Lyman limit, photoionizing the interstellar medium (ISM) and producing H II regions. As strong sources of recombination- and forbidden-line emission, infrared…

Astrophysics of Galaxies · Physics 2012-02-06 Matthew S. Povich

We present an analysis of Galactic bulge stars from Hubble Space Telescope (HST) Wide Field Camera 3 (WFC3) observations of the Stanek window (l,b=[0.25,-2.15]) from two epochs approximately two years apart. This dataset is adjacent to the…

Solar and Stellar Astrophysics · Physics 2020-02-12 Sean K. Terry , Richard K. Barry , David P. Bennett , Aparna Bhattacharya , Jay Anderson , Matthew T. Penny

The spatial range for feedback from star formation varies from molecular cloud disruption on parsec scales to supershells and disk blowout on kiloparsec scales. The relative amounts of energy and momentum given to these scales is important…

Astrophysics of Galaxies · Physics 2022-04-13 Bruce G. Elmegreen , Zorayda Martinez , Deidre A. Hunter

The winds and radiation from massive stars clear out large cavities in the interstellar medium. These bubbles, as they have been called, impact their surrounding molecular clouds and may influence the formation of stars therein. Here we…

Astrophysics of Galaxies · Physics 2014-11-20 Christopher N. Beaumont , Jonathan P. Williams
‹ Prev 1 4 5 6 7 8 10 Next ›