Search Results - "Braga, V. F."
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Chemical Compositions of Field and Globular Cluster RR Lyrae Stars. I. NGC 3201
Published in The Astrophysical journal (01-09-2018)“…Abstract We present a detailed spectroscopic analysis of horizontal branch stars in the globular cluster NGC 3201. We collected optical (4580–5330 Å),…”
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THE CARINA PROJECT. IX. ON HYDROGEN AND HELIUM BURNING VARIABLES
Published in The Astrophysical journal (20-11-2015)“…ABSTRACT We present new multiband (UBVI) time-series data of helium burning variables in the Carina dwarf spheroidal galaxy. The current sample includes 92 RR…”
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ON THE DISTANCE OF THE GLOBULAR CLUSTER M4 (NGC 6121) USING RR LYRAE STARS. II. MID-INFRARED PERIOD-LUMINOSITY RELATIONS
Published in The Astrophysical journal (20-07-2015)“…ABSTRACT New mid-infrared (MIR) period-luminosity (PL) relations are presented for RR Lyræ variables in the globular cluster M4 (NGC 6121). Accurate photometry…”
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On the Use of Field RR Lyrae as Galactic Probes. V. Optical and Radial Velocity Curve Templates
Published in The Astrophysical journal (01-10-2021)“…Abstract We collected the largest spectroscopic catalog of RR Lyrae (RRLs) including ≈20,000 high-, medium-, and low-resolution spectra for ≈10,000 RRLs. We…”
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Erratum: “On the Use of Field RR Lyrae as Galactic Probes. V. Optical and Radial Velocity Curve Templates” (2021, ApJ, 919, 85)
Published in The Astrophysical journal (01-01-2023)Get full text
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Cepheids as distance indicators and stellar tracers
Published in The Astronomy and astrophysics review (01-12-2024)“…We review the phenomenology of classical Cepheids (CCs), Anomalous Cepheids (ACs) and type II Cepheids (TIICs) in the Milky Way (MW) and in the Magellanic…”
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Proline levels, oxidative metabolism and photosynthetic pigments during in vitro growth and acclimatization of Pitcairnia encholirioides L.B. Sm. (Bromeliaceae)
Published in Brazilian journal of biology (01-02-2016)“…This study aimed to evaluate the variation in the levels of proline, oxidative metabolism and photosynthetic pigments in plants of Pitcairnia encholirioides…”
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ON THE DISTANCE OF THE GLOBULAR CLUSTER M4 (NGC 6121) USING RR LYRAE STARS. I. OPTICAL AND NEAR-INFRARED PERIOD-LUMINOSITY AND PERIOD-WESENHEIT RELATIONS
Published in The Astrophysical journal (01-02-2015)“…We present new distance determinations to the nearby globular M4 (NGC 6121) based on accurate optical and near-infrared (NIR) mean magnitudes for fundamental…”
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Does Quorum Sensing play a role in microbial shifts along spontaneous fermentation of cocoa beans? An in silico perspective
Published in Food research international (01-05-2020)“…[Display omitted] •A spontaneous cocoa beans fermentation was entirely evaluated through metagenomics.•Fungi were detected along the entire fermentation…”
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On the use of field RR Lyrae as galactic probes – VI. Mixed mode RR Lyrae variables in Fornax and in nearby dwarf galaxies
Published in Monthly notices of the Royal Astronomical Society (10-11-2022)“…ABSTRACT We investigate the properties of the mixed-mode (RRd) RR Lyrae (RRL) variables in the Fornax dwarf spheroidal (dSph) galaxy by using B- and V-band…”
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On the Use of Field RR Lyrae as Galactic Probes. I. The Oosterhoff Dichotomy Based on Fundamental Variables
Published in The Astrophysical journal (10-09-2019)“…Abstract We collected a large data set of field RR Lyrae stars (RRLs) by using catalogs already available in the literature and Gaia DR2. We estimated the iron…”
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On the Use of Field RR Lyrae as Galactic Probes. III. The α-element Abundances
Published in The Astrophysical journal (01-06-2021)“…Abstract We provide the largest and most homogeneous sample of α -element (Mg, Ca, Ti) and iron abundances for field RR Lyrae (RRLs; 162 variables) by using…”
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Ethylene synthesis inhibition effects on oxidative stress and in vitro conservation of Lippia filifolia (Verbenaceae)
Published in Brazilian journal of biology (01-08-2013)“…This study aimed to investigate the effects of ethylene biosynthesis inhibitors on oxidative metabolisms and the in vitro conservation of Lippia filifolia,…”
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On the Use of Field RR Lyrae As Galactic Probes: IV. New Insights Into and Around the Oosterhoff Dichotomy
Published in The Astrophysical journal (01-10-2021)“…Abstract We discuss the largest and most homogeneous spectroscopic data set of field RR Lyrae variables (RRLs) available to date. We estimated abundances using…”
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On the Use of Field RR Lyrae as Galactic Probes. II. A New ΔS Calibration to Estimate Their Metallicity
Published in The Astrophysical journal (01-02-2021)“…Abstract We performed the largest and most homogeneous spectroscopic survey of field RR Lyraes (RRLs). We secured ≈6300 high-resolution (HR, R ∼ 35,000)…”
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On a New Method to Estimate the Distance, Reddening, and Metallicity of RR Lyrae Stars Using Optical/Near-infrared (B, V, I, J, H, K) Mean Magnitudes: ω Centauri as a First Test Case
Published in The Astrophysical journal (10-01-2019)“…Abstract We developed a new approach to provide accurate estimates of the metal content, reddening, and true distance modulus of RR Lyrae stars (RRLs). The…”
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Chemical Compositions of Field and Globular Cluster RR Lyrae Stars. II. ω Centauri
Published in The Astrophysical journal (20-08-2019)“…Abstract We present a detailed spectroscopic analysis of RR Lyrae (RRL) variables in the globular cluster NGC 5139 ( ω Cen). We collected optical (4580–5330…”
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The VISTA Variables in the Vía Láctea infrared variability catalogue (VIVA-I)
Published in Monthly notices of the Royal Astronomical Society (01-08-2020)“…ABSTRACT High extinction and crowding create a natural limitation for optical surveys towards the central regions of the Milky Way, where the gas and dust are…”
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Deep into the core of dense star clusters: an astrometric and photometric test case for ELT
Published in Monthly notices of the Royal Astronomical Society (21-05-2020)“…ABSTRACT We present a novel analysis of a young star cluster in the Large Magellanic cloud, R136-like, as seen by the Extremely Large Telescope (ELT). The main…”
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Optical and Near-InfraredUBVRIJHKPhotometry for the RR Lyrae Stars in the Nearby Globular Cluster M4 (NGC 6121) 1
Published in Publications of the Astronomical Society of the Pacific (01-06-2014)“…We present optical and near-infraredUBVRIJHKphotometry of stars in the Galactic globular cluster M4 (NGC 6121) based upon a large corpus of observations…”
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