Search Results - "Marengo, Massimo"
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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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Metallicity of Galactic RR Lyrae from Optical and Infrared Light Curves. I. Period–Fourier–Metallicity Relations for Fundamental-mode RR Lyrae
Published in The Astrophysical journal (01-05-2021)“…Abstract We present newly calibrated period– ϕ 31 –[Fe/H] relations for fundamental-mode RR Lyrae stars in the optical and, for the first time, mid-infrared…”
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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 Mira Distance to M101 and a 4% Measurement of H 0
Published in The Astrophysical journal (01-03-2024)“…Abstract The giant spiral galaxy M101 is host to the nearest recent Type Ia supernova (SN 2011fe) and thus has been extensively monitored in the near-infrared…”
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RR Lyrae Mid-infrared Period–Luminosity–Metallicity and Period–Wesenheit–Metallicity Relations Based on Gaia DR3 Parallaxes
Published in The Astrophysical journal (01-03-2023)“…Abstract We present new empirical infrared period–luminosity–metallicity (PLZ) and period–Wesenheit–metallicity (PWZ) relations for RR Lyae based on the latest…”
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Wavelength-dependent Extinction and Grain Sizes in “Dippers”
Published in The Astronomical journal (01-07-2023)“…Abstract We have examined internight variability of K2-discovered “dippers” that are not close to being viewed edge-on, as determined from previously reported…”
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Observations of field and cluster RR Lyræ with Spitzer . Towards high precision distances with Population II stellar tracers
Published in EPJ Web of Conferences (01-01-2017)“…We present our project to calibrate the RR Lyræ period-luminosity-metallicity relation using a sample of Galactic calibrators in the halo and globular clusters…”
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Journal Article Conference Proceeding -
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Between Cepheids and the Cosmos
Published in EPJ Web of Conferences (01-01-2017)“…The X-ray observations of three classical Cepheids produce a surprising result. At approximately the phase of maximum radius there is a sharp increase in X-ray…”
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Journal Article Conference Proceeding -
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The Blast Survey of the Vela Molecular Cloud: Physical Properties of the Dense Cores in Vela-D
Published in The Astrophysical journal (20-12-2009)“…The Balloon-borne Large-Aperture Submillimeter Telescope (BLAST) carried out a 250, 350, and 500 Delta *mm survey of the galactic plane encompassing the Vela…”
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Photometry using the Infrared Array Camera on theSpitzer Space Telescope
Published in Publications of the Astronomical Society of the Pacific (01-11-2008)“…We present several corrections for point-source photometry to be applied to data from the Infrared Array Camera (IRAC) on theSpitzer Space Telescope.These…”
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Relation of Observable Stellar Parameters to Mass-loss Rate of AGB Stars in the LMC
Published in The Astrophysical journal (01-12-2022)“…Abstract Using the data set of Riebel et al. for 6889 pulsating AGB stars in the LMC, we have derived formulae for mass-loss rate as a function of luminosity…”
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Young and Intermediate-Age Distance Indicators
Published in Space science reviews (01-11-2017)“…Distance measurements beyond geometrical and semi-geometrical methods, rely mainly on standard candles. As the name suggests, these objects have known…”
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Absolute Calibration of the Infrared Array Camera on theSpitzer Space Telescope
Published in Publications of the Astronomical Society of the Pacific (01-09-2005)“…The Infrared Array Camera (IRAC) on theSpitzer Space Telescopeis absolutely calibrated by comparing photometry of a set of A stars near the north ecliptic pole…”
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Metallicities from high-resolution spectra of 49 RR Lyrae variables
Published in Monthly notices of the Royal Astronomical Society (01-06-2021)“…ABSTRACT Accurate metallicities of RR Lyrae are extremely important in constraining period–luminosity–metallicity (PLZ) relationships, particularly in the…”
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Metallicity of Galactic RR Lyrae from Optical and Infrared Light Curves. II. Period–Fourier–Metallicity Relations for First Overtone RR Lyrae
Published in The Astrophysical journal (01-06-2022)“…Abstract We present new period- ϕ 31 -[Fe/H] relations for first-overtone RRL stars (RRc), calibrated over a broad range of metallicities (−2.5 ≲ [Fe/H] ≲ 0.0)…”
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The Mira Distance to M101 and a 4% Measurement of H0
Published in The Astrophysical journal (01-03-2024)“…The giant spiral galaxy M101 is host to the nearest recent Type Ia supernova (SN 2011fe) and thus has been extensively monitored in the near-infrared to study…”
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AN INFRARED CENSUS OF DUST IN NEARBY GALAXIES WITH SPITZER (DUSTiNGS). II. DISCOVERY OF METAL-POOR DUSTY AGB STARS
Published in The Astrophysical journal (10-02-2015)“…The DUSTiNGS survey (DUST in Nearby Galaxies with Spitzer) is a 3.6 and 4.5 μm imaging survey of 50 nearby dwarf galaxies designed to identify dust-producing…”
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A Spitzer/IRAC characterization of Galactic AGB and RSG stars
Published in Monthly notices of the Royal Astronomical Society (11-03-2015)“…We present new Spitzer/InfraRed Array Camera (IRAC) observations of 55 dusty long-period variables (48 asymptotic giant branch, AGB, and 6 red supergiant…”
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On the Dwarf Irregular Galaxy NGC 6822. I. Young, Intermediate, and Old Stellar Populations
Published in The Astrophysical journal (01-07-2022)“…Abstract We present accurate and deep multiband ( g , r , i ) photometry of the Local Group dwarf irregular galaxy NGC 6822. The images were collected with…”
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