Browsing by Author "5a2c511d-26f3-438a-86d0-dcd67df5adf4"

Now showing items 1-13 of 13

    • A Model for the Onset of Self-gravitation and Star Formation in Molecular Gas Governed by Galactic Forces. ... 
      Meidt, Sharon; Leroy, Adam; Rosolowsky, Erik; Diederik, Kruijssen, J.; Schinnerer, Eva; Schruba, Andreas; Pety, Jerome; Blanc Mendiberri, Guillermo; Bigiel, Frank; Chevance, Melanie; Hughes, Annie; Querejeta, Miguel; Usero, Antonio (Institute of Physics Publishing, 2018)
      Modern extragalactic molecular gas surveys now reach the scales of star-forming giant molecular clouds (GMCs; 20–50 pc). Systematic variations in GMC properties with galaxy environment imply that clouds are not ...
    • A model for the onset of self-gravitation and star formation in molecular gas governed by galactic forces. ... 
      Meidt, Sharon; Glover, Simon C.O.; Diederik Kruijssen, J. M.; Leroy, Adam K.; Rosolowsky, Erik; Schruba, Andreas; Hughes, Annie; Schinnerer, Eva; Usero, Antonio; Bigiel, Frank; Blanc, Guillermo; Chevance, Mélanie; Pety, Jerome; Querejeta, Miguel; Utomo, Dyas (IOP Publishing, 2020)
      In Meidt et al., we showed that gas kinematics on the scale of individual molecular clouds are not entirely dominated by self-gravity but also track a component that originates with orbital motion in the potential of the ...
    • Cloud-scale molecular gas properties in 15 nearby galaxies 
      Sun, Jiayi; Leroy, Adam K.; Schruba, Andreas; Rosolowsky, Erik; Hughes, Annie; Kruijssen, J. M. Diederik; Meidt, Sharon; Schinnerer, Eva; Blanc Mendiberri, Guillermo; Bigiel, Frank; Chevance, Melanie; Groves, Brent; Herrera, Cinthya N.; Hygate, Alexander P. S.; Pety, Jerome; Querejeta, Miguel; Usero, Antonio; Utomo, Dyas; Bolatto, Alberto D. (The American Astronomical Society, 2018-06-20)
      We measure the velocity dispersion, sigma, and surface density, Sigma, of the molecular gas in nearby galaxies from CO spectral line cubes with spatial resolution 45-120. pc, matched to the size of individual giant molecular ...
    • Dynamical equilibrium in the molecular ISM in 28 nearby star-forming galaxies 
      Sun, Jiayi; Leroy, Adam K.; Ostriker, Eve; Hughes, Annie; Rosolowsky, Erik; Schruba, Andreas; Schinnerer, Eva; Blanc Mendiberri, Guillermo; Faesi, Christopher; Kruijssen, J. M. Diederik; Meidt, Sharon; Utomo, Dyas; Bigiel, Frank; Bolatto, Alberto; Chevance, Melanie; Chiang, I-Da; Dale, Daniel; Emsellem, Eric; Glover, Simon; Grasha, Kathryn; Henshaw, Jonathan; Herrera, Cinthya; Jiménez Donaire, María Jesús; Lee, Janice; Pety, Jerome; Querejeta, Miguel; Saito, Toshiki; Sandstrom, Karin; Usero, Antonio (IOP, 2020)
      We compare the observed turbulent pressure in molecular gas, P-turb, to the required pressure for the interstellar gas to stay in equilibrium in the gravitational potential of a galaxy, P-DE. To do this, we combine arcsecond ...
    • Measuring the mixing scale of the ISM within nearby spiral galaxies 
      Kreckel, Kathryn; Ho, I-Ting; Blanc Mendiberri, Guillermo; Glover, Simon C.O.; Groves, Brent; Rosolowsky, Erik; Bigiel, Frank; Boquien, Mederic; Chevance, Melanie; Dale, Daniel A.; Deger, Sinan; Emsellem, Eric; Grasha, Kathryn; Kim, Jenny J.; Klessen, Ralf S.; Kruijssen, J. M. Diederik; Lee, Janice C.; Leroy, Adam K.; Liu, Daizhong; McElroy, Rebecca; Meidt, Sharon E.; Pessa, Ismael; Sánchez Blázquez, Patricia; Sandstrom, Karin; Santoro, Francesco; Scheuermann, Fabian; Schinnerer, Eva; Schruba, Andreas; Utomo, Dyas; Watkins, Elizabeth J.; Williams, Thomas G. (Oxford University Press, 2020)
      The spatial distribution of metals reflects, and can be used to constrain, the processes of chemical enrichment and mixing. Using PHANGS-MUSE optical integral field spectroscopy, we measure the gas-phase oxygen abundances ...
    • Millimeter-wave Line Ratios and Sub-beam Volume Density Distributions 
      Leroy, Adam K.; Usero, Antonio; Schruba, Andreas; Bigiel, Frank; Kruijssen, J. M.Diederik; Kepley, Amanda; Blanc Mendiberri, Guillermo; Bolatto, Alberto D.; Cormier, Diane; Gallagher, Molly; Hughes, Annie; Jiménez Donaire, María J.; Rosolowsky, Erik; Schinnerer, Eva (IOP Publishing, 2017)
      We explore the use of mm-wave emission line ratios to trace molecular gas density when observations integrate over a wide range of volume densities within a single telescope beam. For observations targeting external galaxies, ...
    • Molecular Gas Properties on Cloud Scales across the Local Star-forming Galaxy Population 
      Sun, Jiayi; Leroy, Adam K.; Schinnerer, Eva; Hughes, Annie; Rosolowsky, Erik; Querejeta, Miguel; Schruba, Andreas; Liu, Daizhong; Saito, Toshiki; Herrera, Cinthya N.; Faesi, Christopher; Usero, Antonio; Pety, Jérôme; Kruijssen, J. M. Diederik; Ostriker, Eve C.; Bigiel, Frank; Blanc Mendiberri, Guillermo; Bolatto, Alberto D.; Boquien, Médéric; Chevance, Mélanie; Dale, Daniel A.; Deger, Sinan; Emsellem, Eric; Glover, Simon C.O.; Grasha, Kathryn; Groves, Brent; Henshaw, Jonathan; Jiménez Donaire, María J.; Kim, Jenny J.; Klessen, Ralf S.; Kreckel, Kathryn; Lee, Janice C.; Meidt, Sharon; Sandstrom, Karin; Sardone, Amy E.; Utomo, Dyas; Williams, Thomas G. (IOP Publishing, 2020)
      Using the PHANGS-ALMA CO(2-1) survey, we characterize molecular gas properties on similar to 100 pc scales across 102,778 independent sightlines in 70 nearby galaxies. This yields the best synthetic view of molecular gas ...
    • PHANGS CO kinematics: disk orientations and rotation curves at 150 pc resolution 
      Lang, Philipp; Meidt, Sharon E.; Rosolowsky, Erik; Nofech, Joseph; Schinnerer, Eva; Leroy, Adam K.; Emsellem, Eric; Pessa, Ismael; Glover, Simon C.O.; Groves, Brent; Hughes, Anne; Kruijssen, J. M. Diederik; Querejeta, Miguel; Schruba, Andreas; Bigiel, Frank; Blanc Mendiberri, Guillermo; Chevance, Mélanie; Colombo, Dario; Faesi, Christopher; Henshaw, Jonathan D.; Herrera, Cinthya N.; Liu, Daizhong; Pety, Jérôme; Puschnig, Johannes; Saito, Toshiki; Sun, Jiayi; Usero, Antonio (IOP Publishing, 2020)
      We present kinematic orientations and high-resolution (150 pc) rotation curves for 67 main-sequence star-forming galaxies surveyed in CO (2-1) emission by PHANGS-ALMA. Our measurements are based on the application of a new ...
    • Star Formation Efficiency per Free-fall Time in nearby Galaxies 
      Utomo, Dyas; Sun, Jiayi; Leroy, Adam; Kruijssen, Diederik; Schinnerer, Eva; Schruba, Andreas; Bigiel, Frank; Blanc Mendiberri, Guillermo; Chevance, Mélanie; Emsellem, Eric; Herrera, Cinthya; Hygate, Alexander; Kreckel, Kathryn; Ostriker, Eve; Pety, Jerome; Querejeta, Miguel; Rosolowsky, Erik; Sandstro, Karin; Usero, Antonio (Institute of Physics Publishing, 2018)
      We estimate the star formation efficiency per gravitational free-fall time, Eff, from observations of nearby galaxies with resolution matched to the typical size of a giant molecular cloud. This quantity, ff, is theoretically ...
    • The headlight cloud in NGC 628: An extreme giant molecular cloud in a typical galaxy disk 
      Herrera, Cinthya N.; Pety, Jerome; Hughes, Annie; Meidt, Sharon E.; Kreckel, Kathryn; Querejeta, Miguel; Saito, Toshiki; Lang, Philipp; Jiménez Donaire, María Jesús; Pessa, Ismael; Cormier, Diane; Usero, Antonio; Sliwa, Kazimierz; Faesi, Christopher; Blanc, Guillermo; Bigiel, Frank; Chevance, Melanie; Dale, Daniel A.; Grasha, Kathryn; Glover, Simon C. O.; Hygate, Alexander P. S; Diederik Kruijssen, J. M.; Leroy, Adam K.; Rosolowsky, Erik; Schinnerer, Eva; Schruba, Andreas; Sun, Jiayi; Utomo, Dyas (EDP Sciences, 2020)
      Context. Cloud-scale surveys of molecular gas reveal the link between giant molecular cloud properties and star formation across a range of galactic environments. Cloud populations in galaxy disks are considered to be ...
    • The lifecycle of molecular clouds in nearby star-forming disc galaxies 
      Chevance, Melanie; Kruijssen, J. M. Diederik; Hygate, Alexander; Schruba, Adreas; Longmore, Steven; Groves, Brent; Henshaw, Jonathan; Herrera, Cinthya; Hughes, Annie; Jeffreson, Sarah; Lang, Philipp; Leroy, Adam; Meidt, Sharon; Pety, Jerome; Razza, Alessandro; Rosolowsky, Erik; Schinnerer, Eva; Bigiel, Frank; Blanc Mendiberri, Guillermo; Emsellem, Eric; Faesi, Christopher; Glover, Simon; Haydon, Daniel; Ho, I-Ting; Kreckel, Kathryn; Lee, Janice; Liu, Daizhong; Querejeta, Miguel; Saito, Toshiki; Sun, Jiayi; Usero, Antonio; Utomo, Dyas (Oxford University Press, 2020)
    • Ubiquitous velocity fluctuations throughout the molecular interstellar medium 
      Henshaw, Jonathan D.; Kruijssen, J. M. Diederik; Longmore, Steven N.; Riener, Manuel; Leroy, Adam K.; Rosolowsky, Erik; Ginsburg, Adam; Battersby, Cara; Chevance, Melanie; Meidt, Sharon E.; Glover, Simon C.O.; Hughes, Annie; Kainulainen, Jouni; Klessen, Ralf S.; Schinnerer, Eva; Schruba, Andreas; Beuther, Henrik; Bigiel, Frank; Neville Blanc Mendiberri, Guillermo; Emsellem, Eric; Henning, Thomas; Herrera, Cynthia N.; Koch, Eric W.; Pety, Jerome; Ragan, Sarah E.; Sun, Jiayi (Nature, 2020)
      Statistical analysis of velocity fluctuations in the interstellar medium (ISM) of the Milky Way and NGC 4321 show that the motion of molecular gas over scales ranging from 0.1 to 1,000 pc is similar, and consistent with ...
    • When gas dynamics decouples from galactic rotation: characterizing ism circulation in disk galaxies 
      Utreras, José; Blanc, Guillermo; Escala Astorquiza, Andrés; Meidt, Sharon; Emsellem, Eric; Bigiel, Frank; Glover, Simon C.O.; Henshaw, Jonathan; Hygate, Alex; Diederik Kruijssen, J. M.; Rosolowsky, Erik; Schinnerer, Eva; Schruba, Andreas (IOP Publishing, 2020)
      In galactic disks, galactic rotation sets the bulk motion of gas, and its energy and momentum can be transferred toward small scales. Additionally, in the interstellar medium, random and noncircular motions arise from ...