Search Results - "Griffiths, N."
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The life cycle of the Central Molecular Zone – I. Inflow, star formation, and winds
Published in Monthly notices of the Royal Astronomical Society (01-12-2019)“…ABSTRACT We present a study of the gas cycle and star formation history in the central 500 pc of the Milky Way, known as Central Molecular Zone (CMZ). Through…”
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Low-Mach-number turbulence in interstellar gas revealed by radio polarization gradients
Published in Nature (London) (13-10-2011)“…Turbulence in the Milky Way Turbulence is a well-studied phenomenon in disciplines ranging from meteorology to cardiology, but astrophysical turbulence —…”
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Complex Faraday depth structure of active galactic nuclei as revealed by broad-band radio polarimetry
Published in Monthly notices of the Royal Astronomical Society (01-04-2012)“…We present a detailed study of the Faraday depth structure of four bright (>1 Jy), strongly polarized, unresolved radio-loud quasars. The Australia Telescope…”
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Cold gas in the Milky Way’s nuclear wind
Published in Nature (London) (20-08-2020)“…The centre of the Milky Way hosts several high-energy processes that have strongly affected the inner regions of our Galaxy. Activity from the super-massive…”
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The Outer Scale of Turbulence in the Magnetoionized Galactic Interstellar Medium
Published in The Astrophysical journal (10-06-2008)“…We analyze Faraday rotation and depolarization of extragalactic radio point sources in the direction of the inner Galactic plane to determine the outer scale…”
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Distances to southern 6.7-GHz methanol masers through H i self-absorption
Published in Monthly notices of the Royal Astronomical Society (11-11-2011)“…We present the kinematic distance ambiguity resolutions of over 400 6.7-GHz methanol masers. Using the data sets of the International Galactic Plane Survey we…”
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Distances to southern 6.7-GHz methanol masers through Hi self-absorption
Published in Monthly notices of the Royal Astronomical Society (01-11-2011)“…ABSTRACT We present the kinematic distance ambiguity resolutions of over 400 6.7-GHz methanol masers. Using the data sets of the International Galactic Plane…”
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Comment on "Calorimetric Dark Matter Detection with Galactic Center Gas Clouds"
Published in Physical review letters (17-01-2020)Get full text
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TRACING THE MILKY WAY NUCLEAR WIND WITH 21 cm ATOMIC HYDROGEN EMISSION
Published in The Astrophysical journal (01-08-2016)“…ABSTRACT There is evidence in 21 cm H i emission for voids several kiloparsecs in size centered approximately on the Galactic center, both above and below the…”
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Observation of Acceleration of H i Clouds within the Fermi Bubbles
Published in The Astrophysical journal (01-01-2020)“…The ∼200 H i clouds observed to be entrained in the Fermi bubble wind show a trend of increasing maximum with Galactic latitude. We analyze previous…”
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Blowing in the Milky Way Wind: Neutral Hydrogen Clouds Tracing the Galactic Nuclear Outflow
Published in The Astrophysical journal (01-03-2018)“…We present the results of a new sensitive survey of neutral hydrogen above and below the Galactic Center with the Green Bank Telescope. The observations extend…”
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Rotation measure structure functions with higher-order stencils as a probe of small-scale magnetic fluctuations and its application to the Small and Large Magellanic Clouds
Published in Monthly notices of the Royal Astronomical Society (01-01-2023)“…ABSTRACT Magnetic fields and turbulence are important components of the interstellar medium (ISM) of star-forming galaxies. It is challenging to measure the…”
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Magnetic field draping around clumpy high-velocity clouds in galactic halo
Published in Monthly notices of the Royal Astronomical Society (02-05-2023)“…ABSTRACT Throughout the passage within the Galactic halo, high-velocity clouds (HVCs) sweep up ambient magnetic fields and form stretched and draped…”
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The 6-GHz methanol multibeam maser catalogue – I. Galactic Centre region, longitudes 345° to 6
Published in Monthly notices of the Royal Astronomical Society (2010)“…We have conducted a Galactic plane survey of methanol masers at 6668 MHz using a seven-beam receiver on the Parkes telescope. Here we present results from the…”
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Milky Way Kinematics. I. Measurements at the Subcentral Point of the Fourth Quadrant
Published in The Astrophysical journal (10-12-2007)“…We use atomic hydrogen (H I) data from the Southern Galactic Plane Survey to study the kinematics of the fourth quadrant of the Milky Way. By measuring the…”
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Stability of peatland carbon to rising temperatures
Published in Nature communications (13-12-2016)“…Peatlands contain one-third of soil carbon (C), mostly buried in deep, saturated anoxic zones (catotelm). The response of catotelm C to climate forcing is…”
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Dust-Gas Scaling Relations and OH Abundance in the Galactic ISM
Published in The Astrophysical journal (20-07-2018)“…Observations of interstellar dust are often used as a proxy for total gas column density NH. By comparing Planck thermal dust data (Release 1.2) and new dust…”
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A DETAILED STUDY OF THE MOLECULAR AND ATOMIC GAS TOWARD THE γ-RAY SUPERNOVA REMNANT RX J1713.7―3946: SPATIAL TeV γ-RAY AND INTERSTELLAR MEDIUM GAS CORRESPONDENCE
Published in The Astrophysical journal (10-02-2012)“…RX J1713.7-3946 is the most remarkable TeV gamma -ray supernova remnant (SNR) that emits gamma -rays in the highest energy range. We have made a new combined…”
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MAGMO: coherent magnetic fields in the star-forming regions of the Carina-Sagittarius spiral arm tangent
Published in Monthly notices of the Royal Astronomical Society (01-10-2012)“…Abstract We present the pilot results of the ';MAGMO' project, targeted observations of ground-state hydroxyl masers towards sites of 6.7-GHz methanol maser…”
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Distant probes of rotation measure structure: where is the Faraday rotation towards the Magellanic Leading Arm?
Published in Monthly notices of the Royal Astronomical Society (01-12-2021)“…ABSTRACT Faraday rotation measures (RMs) should be interpreted with caution because there could be multiple magneto-ionized medium components that contribute…”
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