17 research outputs found
TOI-431/HIP 26013: a super-Earth and a sub-Neptune transiting a bright, early K dwarf, with a third RV planet
We present the bright (Vmag = 9.12), multiplanet system TOI-431, characterized with photometry and radial velocities (RVs). We estimate the stellar rotation period to be 30.5 ± 0.7 d using archival photometry and RVs. Transiting Exoplanet Survey Satellite (TESS) objects of Interest (TOI)-431âb is a super-Earth with a period of 0.49 d, a radius of 1.28 ± 0.04 Râ, a mass of 3.07 ± 0.35 Mâ, and a density of 8.0 ± 1.0 g cmâ3; TOI-431 d is a sub-Neptune with a period of 12.46 d, a radius of 3.29 ± 0.09 Râ, a mass of 9.90+1.53â1.49 Mâ, and a density of 1.36 ± 0.25 g cmâ3. We find a third planet, TOI-431âc, in the High Accuracy Radial velocity Planet Searcher RV data, but it is not seen to transit in the TESS light curves. It has an Msin i of 2.83+0.41â0.34 Mâ, and a period of 4.85 d. TOI-431âd likely has an extended atmosphere and is one of the most well-suited TESS discoveries for atmospheric characterization, while the super-Earth TOI-431âb may be a stripped core. These planets straddle the radius gap, presenting an interesting case-study for atmospheric evolution, and TOI-431âb is a prime TESS discovery for the study of rocky planet phase curves
TOI-431/HIP 26013: a super-Earth and a sub-Neptune transiting a bright, early K dwarf, with a third RV planet
Stars and planetary system
TOI-431/HIP 26013: A super-Earth and a sub-Neptune transiting a bright, early K dwarf, with a third RV planet
We present the bright (Vmag = 9.12), multiplanet system TOI-431, characterized with photometry and radial velocities (RVs). We estimate the stellar rotation period to be 30.5 ± 0.7 d using archival photometry and RVs. Transiting Exoplanet Survey Satellite (TESS) objects of Interest (TOI)-431 b is a super-Earth with a period of 0.49 d, a radius of 1.28 ± 0.04 R, a mass of 3.07 ± 0.35 M, and a density of 8.0 ± 1.0 g cm-3; TOI-431 d is a sub-Neptune with a period of 12.46 d, a radius of 3.29 ± 0.09 R, a mass of 9.90+1.53-1.49 M, and a density of 1.36 ± 0.25 g cm-3. We find a third planet, TOI-431 c, in the High Accuracy Radial velocity Planet Searcher RV data, but it is not seen to transit in the TESS light curves. It has an Msin i of 2.83+0.41-0.34 M, and a period of 4.85 d. TOI-431 d likely has an extended atmosphere and is one of the most well-suited TESS discoveries for atmospheric characterization, while the super-Earth TOI-431 b may be a stripped core. These planets straddle the radius gap, presenting an interesting case-study for atmospheric evolution, and TOI-431 b is a prime TESS discovery for the study of rocky planet phase curves
VÀlttelevÀn kiintymyssuhteen merkitys lapsen hyvinvoinnille
Tarkoituksena tÀssÀ opinnÀytetyössÀ on koota tutkimustietoa vÀlttelevÀstÀ kiintymyssuhteesta ja sen merkityksestÀ lapsen hyvinvoinnille. Tavoitteena oli kehittÀÀ ammatillista osaamista teoriapohjan osalta ja kÀsitellÀ tutkittavaa aihetta psykiatrisen hoitotyön nÀkökulmasta, mikÀ on suuntautumiseni.
Tutkimuskysymys on jaettu kahteen osaan: vanhempien ja lapsen vÀlinen kiintymyssuhde ja lapsen kehitys ja hyvinvointi. NÀiden osien ulottuvilta on haettu tutkimusartikkeleita, tutkimusraportteja ja asiantuntijakirjoituksia, joista on koottu tiivistelmiÀ kirjallisuuskatsauksen tapaan. Pohdinnassa on eritelty aineistoa tarkemmin tutkimuskysymyksen osalta.
Kiintymyssuhde kehittyy lapsella varhaisen vuorovaikutuksen kautta 0â2-vuotiaana. Jos vanhemmat laiminlyövĂ€t kommunikoinnin lapsen kanssa, emotionaalinen kehitys jÀÀ vajaaksi eikĂ€ lapsi opi ilmaisemaan omia tarpeitaan ja tunteitaan. VĂ€lttelevĂ€n kiintymyssuhteen seuraukset voivat olla laajat epĂ€sosiaalisuudesta kognitiivisiin hĂ€iriöihin. EpĂ€sosiaalisuuteen kytkeytyviin hĂ€iriöihin kuuluu puhumattomuus, eristĂ€ytyminen ja laajemmin kroonistunut masennus, mihin taas liittyy vahva itsetuhoisuuden riski
Untersuchungen zum Plasma-Heissdraht-Auftragschweissen mit den Duplex-Werkstoffen X2 CrNiMoN 22 5 3 und X2 CrNiMoN 25 7 4 Abschlussbericht
The research project aimed at obtaining verifiable knowledge of structural development during welding, precipitation and embrittlement tendencies, changes of the austenite-ferrite ratio, and corrosion behaviour, for the application of such coatings to chemical apparatus and plant construction as well as to flue gas desulphurization systems and off- and onshore technologies. (EG9504) (orig./MM)Das Ziel des Forschungsvorhabens war es, gesicherte Erkenntnisse ueber Gefuegeausbildung beim Schweissen, Ausscheidungs- und Versproedungsneigung, Aenderungen im Austenit-Ferrit-Verhaeltnis und Korrosionsverhalten fuer den Einsatz derartiger Beschichtungen im chemischen Apparate- und Anlagenbau sowie fuer Systeme der Rauchgasentschwefelung und der Off- und Onshoretechnik zu erarbeiten. (orig./MM)Available from TIB Hannover: F95B1599 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEArbeitsgemeinschaft Industrieller Forschungsvereinigungen e.V., Koeln (Germany)DEGerman