4 research outputs found

    Environmental Print: From Context to Comprehension

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    The purpose of this research is to further our understanding of the role played by environmental print in the literacy development of emergent readers. Environmental print is defined as any print that can be seen in public such as logos, signs, products names and billboards. One of the main things we already know about environmental print is that it helps young children understand that the words in print mean something, or that some message is communicated through them. This connection is crucial to developing early literacy skills. This research identifies young readers’ abilities to recognize these words out of context and discusses teaching strategies that help to utilize environmental print effectively in the classroom. Environmental print can be the first stepping stone to help emerging readers on their path to literacy

    HD 20329b: An ultra-short-period planet around a solar-type star found by TESS

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    We used TESS light curves and HARPS-N spectrograph radial velocity measurements to establish the physical properties of the transiting exoplanet candidate found around the star HD 20329 (TOI-4524). We performed a joint fit of the light curves and radial velocity time series to measure the mass, radius, and orbital parameters of the candidate. We confirm and characterize HD 20329b, an ultra-short-period (USP) planet transiting a solar-type star. The host star (HD 20329, V=8.74V = 8.74 mag, J=7.5J = 7.5 mag) is characterized by its G5 spectral type with M=0.90±0.05\mathrm{M}_\star= 0.90 \pm 0.05 M_\odot, R=1.13±0.02\mathrm{R}_\star = 1.13 \pm 0.02 R_\odot, and Teff=5596±50\mathrm{T}_{\mathrm{eff}} = 5596 \pm 50 K; it is located at a distance d=63.68±0.29d= 63.68 \pm 0.29 pc. By jointly fitting the available TESS transit light curves and follow-up radial velocity measurements, we find an orbital period of 0.9261±(0.5×104)0.9261 \pm (0.5\times 10^{-4}) days, a planetary radius of 1.72±0.071.72 \pm 0.07 R\mathrm{R}_\oplus, and a mass of 7.42±1.097.42 \pm 1.09 M\mathrm{M}_\oplus, implying a mean density of ρp=8.06±1.53\rho_\mathrm{p} = 8.06 \pm 1.53 g cm3^{-3}. HD 20329b joins the \sim30 currently known USP planets with radius and Doppler mass measurements.Comment: Accepted for publication in A&A, 26 page

    HD 20329b: An ultra-short-period planet around a solar-type star found by TESS

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    We used TESS light curves and HARPS-N spectrograph radial velocity measurements to establish the physical properties of the transiting exoplanet candidate found around the star HD 20329 (TOI-4524). We performed a joint fit of the light curves and radial velocity time series to measure the mass, radius, and orbital parameters of the candidate. We confirm and characterize HD 20329b, an ultra-short-period (USP) planet transiting a solar-type star. The host star (HD 20329, V = 8.74 mag, J = 7.5 mag) is characterized by its G5 spectral type with M_star= 0.90 ± 0.05 M_sun, R_star = 1.13 ± 0.02 R_sun, and T_eff = 5596 ± 50 K; it is located at a distance d= 63.68 ± 0.29 pc. By jointly fitting the available TESS transit light curves and follow-up radial velocity measurements, we find an orbital period of 0.9261 ± (0.5× 10^-4) days, a planetary radius of 1.72 ± 0.07 R_earth, and a mass of 7.42 ± 1.09 M_earth, implying a mean density of rho_planet = 8.06 ± 1.53 g cm^-3. HD 20329b joins the ~30 currently known USP planets with radius and Doppler mass measurements
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