Search Results - "SEIBERT, Mark"
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The Carnegie-Chicago Hubble Program. VIII. An Independent Determination of the Hubble Constant Based on the Tip of the Red Giant Branch
Published in The Astrophysical journal (01-09-2019)“…Abstract We present a new and independent determination of the local value of the Hubble constant based on a calibration of the tip of the red giant branch…”
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Cosmicflows-4: The Calibration of Optical and Infrared Tully-Fisher Relations
Published in The Astrophysical journal (01-06-2020)“…This study is a part of the Cosmicflows-4 project with the aim of measuring the distances of more than ∼10,000 spiral galaxies in the local universe up to…”
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CARNEGIE HUBBLE PROGRAM: A MID-INFRARED CALIBRATION OF THE HUBBLE CONSTANT
Published in The Astrophysical journal (10-10-2012)“…Using a mid-infrared calibration of the Cepheid distance scale based on recent observations at 3.6 mu m with the Spitzer Space Telescope, we have obtained a…”
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THE CARNEGIE HUBBLE PROGRAM: THE DISTANCE AND STRUCTURE OF THE SMC AS REVEALED BY MID-INFRARED OBSERVATIONS OF CEPHEIDS
Published in The Astrophysical journal (10-01-2016)“…ABSTRACT Using Spitzer observations of classical Cepheids we have measured the true average distance modulus of the Small Magellanic Cloud (SMC) to be mag…”
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The effects of diffuse ionized gas and spatial resolution on metallicity gradients: TYPHOON two-dimensional spectrophotometry of M83
Published in Monthly notices of the Royal Astronomical Society (01-07-2019)“…Abstract We present a systematic study of the diffuse ionized gas (DIG) in M83 and its effects on the measurement of metallicity gradients at varying…”
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Cosmicflows-4: The Catalog of ∼10,000 Tully-Fisher Distances
Published in The Astrophysical journal (01-10-2020)“…We present the distances of 9792 spiral galaxies lying within 15,000 km s−1 using the relation between luminosity and rotation rate of spiral galaxies. The…”
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Standard Galactic field RR Lyrae II: a Gaia DR2 calibration of the period–Wesenheit–metallicity relation
Published in Monthly notices of the Royal Astronomical Society (01-12-2019)“…ABSTRACT RR Lyrae stars have long been popular standard candles, but significant advances in methodology and technology have been made in recent years to…”
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Extreme Feedback and the Epoch of Reionization: Clues in the Local Universe
Published in The Astrophysical journal (20-03-2011)“…The source responsible for reionizing the universe at z>6 remains uncertain. While an energetically adequate population of star-forming galaxies may be in…”
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gPhoton: THE GALEX PHOTON DATA ARCHIVE
Published in The Astrophysical journal (20-12-2016)“…ABSTRACT gPhoton is a new database product and software package that enables analysis of GALEX ultraviolet data at the photon level. The project's stand-alone,…”
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THE CARNEGIE-CHICAGO HUBBLE PROGRAM. I. AN INDEPENDENT APPROACH TO THE EXTRAGALACTIC DISTANCE SCALE USING ONLY POPULATION II DISTANCE INDICATORS
Published in The Astrophysical journal (01-12-2016)“…ABSTRACT We present an overview of the Carnegie-Chicago Hubble Program, an ongoing program to obtain a 3% measurement of the Hubble constant ( H 0 ) using…”
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The Carnegie–Chicago Hubble Program. III. The Distance to NGC 1365 via the Tip of the Red Giant Branch
Published in The Astrophysical journal (01-01-2018)“…Abstract The Carnegie–Chicago Hubble Program (CCHP) seeks to anchor the distance scale of Type Ia supernovae via the Tip of the Red Giant Branch (TRGB) method…”
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The Carnegie–Chicago Hubble Program. V. The Distances to NGC 1448 and NGC 1316 via the Tip of the Red Giant Branch
Published in The Astrophysical journal (20-10-2018)“…Abstract The Carnegie–Chicago Hubble Program (CCHP) is recalibrating the extragalactic SN Ia distance scale using exclusively Population II stars. This effort…”
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On a New Theoretical Framework for RR Lyrae Stars. II. Mid-infrared Period-Luminosity-Metallicity Relations
Published in The Astrophysical journal (01-06-2017)“…We present new theoretical period-luminosity-metallicity (PLZ) relations for RR Lyræ stars (RRLs) at Spitzer and WISE wavelengths. The PLZ relations were…”
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The Largest M Dwarf Flares from ASAS-SN
Published in The Astrophysical journal (10-05-2019)“…The All-sky Automated Survey for Supernovae (ASAS-SN) is the only project in existence to scan the entire sky in optical light approximately every day,…”
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The TYPHOON Stellar Population Synthesis Survey. I. The Young Stellar Population of the Great Barred Spiral NGC 1365
Published in The Astrophysical journal (01-01-2024)“…Abstract We analyze TYPHOON long-slit-absorption line spectra of the starburst barred spiral galaxy NGC 1365 obtained with the Progressive Integral Step Method…”
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Galaxy Structure in the Ultraviolet: The Dependence of Morphological Parameters on Rest-frame Wavelength
Published in The Astrophysical journal (10-09-2018)“…Evolutionary studies that compare galaxy structure as a function of redshift are complicated by the fact that any particular galaxy's appearance depends in…”
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Intrinsic reactivity of [OUCH]+: Apparent synthesis of [OUS]+ by reaction with CS2
Published in Rapid communications in mass spectrometry (30-04-2022)“…Rationale Building on our report that collision‐induced dissociation (CID) can be used to create the highly reactive U‐alkylidyne species [O=U≡CH]+, our goal…”
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The Origin of the Mass-Metallicity Relation: Insights from 53,000 Star-forming Galaxies in the Sloan Digital Sky Survey
Published in The Astrophysical journal (01-10-2004)“…We utilize Sloan Digital Sky Survey imaging and spectroscopy of 653,000 star-forming galaxies at z60.1 to study the relation between stellar mass and gas-phase…”
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Intrinsic reactivity of [OUCH] + : Apparent synthesis of [OUS] + by reaction with CS 2
Published in Rapid communications in mass spectrometry (30-04-2022)“…Building on our report that collision-induced dissociation (CID) can be used to create the highly reactive U-alkylidyne species [O=U≡CH] , our goal was to…”
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