Search Results - "Querejeta, Miguel"
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Interacting galaxies in the nearby Universe: only moderate increase of star formation
Published in Monthly notices of the Royal Astronomical Society (01-12-2015)“…We investigate the influence of interactions on the star formation by studying a sample of almost 1500 of the nearest galaxies, all within a distance of ~45…”
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Distances to PHANGS galaxies: New tip of the red giant branch measurements and adopted distances
Published in Monthly notices of the Royal Astronomical Society (01-03-2021)“…ABSTRACT PHANGS-HST is an ultraviolet-optical imaging survey of 38 spiral galaxies within ∼20 Mpc. Combined with the PHANGS-ALMA, PHANGS-MUSE surveys and other…”
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Cloud-scale Molecular Gas Properties in 15 Nearby Galaxies
Published in The Astrophysical journal (20-06-2018)“…We measure the velocity dispersion, , and surface density, , of the molecular gas in nearby galaxies from CO spectral line cubes with spatial resolution 45-120…”
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A Model for the Onset of Self-gravitation and Star Formation in Molecular Gas Governed by Galactic Forces. I. Cloud-scale Gas Motions
Published in The Astrophysical journal (20-02-2018)“…Modern extragalactic molecular gas surveys now reach the scales of star-forming giant molecular clouds (GMCs; 20-50 pc). Systematic variations in GMC…”
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PHANGS CO Kinematics: Disk Orientations and Rotation Curves at 150 pc Resolution
Published in The Astrophysical journal (01-07-2020)“…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…”
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Cloud-scale ISM Structure and Star Formation in M51
Published in The Astrophysical journal (01-09-2017)“…We compare the structure of molecular gas at 40 pc resolution to the ability of gas to form stars across the disk of the spiral galaxy M51. We break the PAWS…”
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Dynamical Equilibrium in the Molecular ISM in 28 Nearby Star-forming Galaxies
Published in The Astrophysical journal (01-04-2020)“…We compare the observed turbulent pressure in molecular gas, Pturb, to the required pressure for the interstellar gas to stay in equilibrium in the…”
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Low-J CO Line Ratios from Single-dish CO Mapping Surveys and PHANGS-ALMA
Published in The Astrophysical journal (01-03-2022)“…Abstract We measure the low- J CO line ratios R 21 ≡ CO (2–1)/CO (1–0), R 32 ≡ CO (3–2)/CO (2–1), and R 31 ≡CO (3–2)/CO (1–0) using whole-disk CO maps of…”
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The Gas-Star Formation Cycle in Nearby Star-forming Galaxies. I. Assessment of Multi-scale Variations
Published in The Astrophysical journal (10-12-2019)“…The processes regulating star formation in galaxies are thought to act across a hierarchy of spatial scales. To connect extragalactic star formation relations…”
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10
On the duration of the embedded phase of star formation
Published in Monthly notices of the Royal Astronomical Society (01-06-2021)“…ABSTRACT Feedback from massive stars plays a key role in molecular cloud evolution. After the onset of star formation, the young stellar population is exposed…”
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Morphology and Kinematics of the Gas in M51: How Interaction with NGC 5195 Has Molded the Structure of Its Arms
Published in The Astrophysical journal (01-05-2024)“…Abstract The Whirlpool Galaxy is a well-studied grand design galaxy with two major spiral arms, and a large satellite NGC 5195. The arms both show long uniform…”
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The PdBI Arcsecond Whirlpool Survey (PAWS): The Role of Spiral Arms in Cloud and Star Formation
Published in The Astrophysical journal (10-02-2017)“…The process that leads to the formation of the bright star-forming sites observed along prominent spiral arms remains elusive. We present results of a…”
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13
Star Formation Laws and Efficiencies across 80 Nearby Galaxies
Published in Astrophysical journal. Letters (01-03-2023)“…Abstract We measure empirical relationships between the local star formation rate (SFR) and properties of the star-forming molecular gas on 1.5 kpc scales…”
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PHANGS–JWST First Results: Measuring Polycyclic Aromatic Hydrocarbon Properties across the Multiphase Interstellar Medium
Published in Astrophysical journal. Letters (01-02-2023)“…Abstract Ratios of polycyclic aromatic hydrocarbon (PAH) vibrational bands are a promising tool for measuring the properties of the PAH population and their…”
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PHANGS–JWST First Results: Duration of the Early Phase of Massive Star Formation in NGC 628
Published in Astrophysical journal. Letters (01-02-2023)“…Abstract The earliest stages of star formation, when young stars are still deeply embedded in their natal clouds, represent a critical phase in the matter…”
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PHANGS–JWST First Results: Rapid Evolution of Star Formation in the Central Molecular Gas Ring of NGC 1365
Published in Astrophysical journal. Letters (01-02-2023)“…Abstract Large-scale bars can fuel galaxy centers with molecular gas, often leading to the development of dense ringlike structures where intense star…”
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Impacts of Bar-driven Shear and Shocks on Star Formation
Published in The Astrophysical journal (01-06-2024)“…Abstract Bars drive gas inflow. As the gas flows inward, shocks and shear occur along the bar dust lanes. Such shocks and shear can affect the star formation…”
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PHANGS–JWST First Results: Tracing the Diffuse Interstellar Medium with JWST Imaging of Polycyclic Aromatic Hydrocarbon Emission in Nearby Galaxies
Published in Astrophysical journal. Letters (01-02-2023)“…Abstract JWST observations of polycyclic aromatic hydrocarbon (PAH) emission provide some of the deepest and highest resolution views of the cold interstellar…”
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PHANGS–JWST First Results: The Dust Filament Network of NGC 628 and Its Relation to Star Formation Activity
Published in Astrophysical journal. Letters (01-02-2023)“…Abstract PHANGS–JWST mid-infrared (MIR) imaging of nearby spiral galaxies has revealed ubiquitous filaments of dust emission in intricate detail. We present a…”
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PHANGS–JWST First Results: A Global and Moderately Resolved View of Mid-infrared and CO Line Emission from Galaxies at the Start of the JWST Era
Published in Astrophysical journal. Letters (01-02-2023)“…Abstract We explore the relationship between mid-infrared (mid-IR) and CO rotational line emission from massive star-forming galaxies, which is one of the…”
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