Starspots and spin-orbit alignment for Kepler cool host stars

The angle between the spin axis of the host star and the orbit of its planets (i.e., the stellar obliquity) is precious information about the formation and evolution of exoplanetary systems. Measurements of the Rossiter-McLaughlin effect revealed that many stars that host a hot-Jupiter have high obliquities, suggesting that hot-Jupiter formation involves excitation of orbital inclinations. In this contribution we show how the passage of the planet over starspots can be used to measure the obliquity of exoplanetary systems. This technique is used to obtain - for the first time - the obliquity of a system with several planets that lie in a disk, Kepler-30, with the result that the star has an obliquity smaller than 10 degrees. The implications for the formation of exoplanetary systems, in particular the hot-Jupiter population, are also discussed.Comment: To appear in special edition of AN, proceedings of the Cool Stars 17 conference, Barcelona June 201

Wellness Champions: A Critical Strategy for Universities to Enhance Population Health and Wellbeing during the COVID-19 Pandemic

No abstract available

Staying Calm and Well in the Midst of the COVID-19 Storm: One University's Longitudinal Outcomes Evaluation of a Mental Health and Well-Being Webinar Series

Background: As the COVID-19 pandemic began, wellness leadership at a large Mid-west public university anticipated an increase in mental health problems among faculty and staff. A two-part weekly webinar series entitled "Staying Calm and Well in the Midst of the COVID-19 Storm" was launched to assist faculty and staff in coping with stressful issues related to the pandemic and enhancing their well-being. This series provided the university community with evidence-based knowledge, skills, and resources to enhance their ability in taking good self-care.Aim: To assess participant mental health outcomes during the two-part mental health and well-being educational webinar series over time.Methods: A longitudinal outcomes evaluation was conducted. Evaluation data was obtained from the participants via an anonymous post-webinar survey, which included questions from the Patient-Health Questionnaire-4 (PHQ-4) to assess symptoms of anxiety and depression. The first series was conducted over the course of 8 weeks and the second series took place over 7 weeks. Descriptive statistics were used to assess responses to the PHQ-4 over time to evaluate outcomes of the webinar series. An open-ended question also asked participants about the 2 to 3 biggest concerns and worries they had at that moment.   Results: The average amount of survey responses received were 1,470.25 (SD = ± 240.3) for Series One and 926.4 (SD = ± 164.3) for Series Two. Ninety-five percent of participants put the skills they learned during both series into practice. When participants reported experiencing anxiety or depressive symptoms, they most frequently reported experiencing them several days a week. The number of participants reporting no depressive or anxiety symptoms increased as the webinar series progressed over time. The types of concerns and worries reported varied across time.Conclusion: The Staying Calm and Well During the COVID-19 Pandemic webinar participants had a reduction in symptoms associated with anxiety and depression after completing the series

The Vehicle, Fall 2003

Table of Contents Blame It on My BirthsignMichael Doizanpage 4 Like a BanjoKaitlyn Kingstonpage 6 A BubbleMaria Santoyopage 7 UntitledLiz Toyntonpage 8 She Said It Was Stuck in the FenceGreg Holdenpage 11 Thanksgiving Table CharactersKrystal Heringpage 12 This Is My LandKorah Winnpage 13 Bleeding HeartsKaitlyn Kingstonpage 14 SoldierEmily Rapppage 17 HomelessLaTasha Harrispage 18 InfinitiLindsey Nawojskipage 19 Gone Until ForeverAndy Whytepage 20 On My WayKristin Bornpage 27 GloryJay Popepage 28 Untitled (1)Trevor Moorepage 29 Nature\u27s MoratoriumMatt McCarthypage 29 Untitled (2)Trevor Moorepage 30 Eternal ChildAmy Towerypage 31 FingersJosh Sopiarzpage 31 She Likes JazzMario Podeschipage 32 Back Alley FarmsScott E. Lutzpage 33 Biographiespage 35https://thekeep.eiu.edu/vehicle/1078/thumbnail.jp

NEID Reveals that The Young Warm Neptune TOI-2076 b Has a Low Obliquity

TOI-2076 b is a sub-Neptune-sized planet ($R=2.39 \pm 0.10 \mathrm{R_\oplus}$) that transits a young ($204 \pm 50 \mathrm{MYr}$) bright ($V = 9.2$) K-dwarf hosting a system of three transiting planets. Using spectroscopic observations with the NEID spectrograph on the WIYN 3.5 m Telescope, we model the Rossiter-McLaughlin effect of TOI-2076 b, and derive a sky-projected obliquity of $\lambda=-3_{-15}^{+16\:\circ}$. Using the size of the star ($R=0.775 \pm0.015 \mathrm{R_\odot}$), and the stellar rotation period ($P_{\mathrm{rot}}=7.27\pm0.23$ days), we estimate a true obliquity of $\psi=18_{-9}^{+10\:\circ}$ ($\psi < 34^\circ$ at 95% confidence), demonstrating that TOI-2076 b is on a well-aligned orbit. Simultaneous diffuser-assisted photometry from the 3.5 m Telescope at Apache Point Observatory rules out flares during the transit. TOI-2076 b joins a small but growing sample of young planets in compact multi-planet systems with well-aligned orbits, and is the fourth planet with an age $\lesssim 300$ Myr in a multi-transiting system with an obliquity measurement. The low obliquity of TOI-2076 b and the presence of transit timing variations in the system suggest the TOI-2076 system likely formed via convergent disk migration in an initially well-aligned disk.Comment: Submitted to ApJL, 13 pages, 4 figures, 3 table

Masses, radii, and orbits of small Kepler planets : The transition from gaseous to rocky planets

We report on the masses, sizes, and orbits of the planets orbiting 22 Kepler stars. There are 49 planet candidates around these stars, including 42 detected through transits and 7 revealed by precise Doppler measurements of the host stars. Based on an analysis of the Kepler brightness measurements, along with high-resolution imaging and spectroscopy, Doppler spectroscopy, and (for 11 stars) asteroseismology, we establish low false-positive probabilities (FPPs) for all of the transiting planets (41 of 42 have an FPP under 1%), and we constrain their sizes and masses. Most of the transiting planets are smaller than three times the size of Earth. For 16 planets, the Doppler signal was securely detected, providing a direct measurement of the planet's mass. For the other 26 planets we provide either marginal mass measurements or upper limits to their masses and densities; in many cases we can rule out a rocky composition. We identify six planets with densities above 5 g cm-3, suggesting a mostly rocky interior for them. Indeed, the only planets that are compatible with a purely rocky composition are smaller than 2 R ⊕. Larger planets evidently contain a larger fraction of low-density material (H, He, and H2O).Peer reviewedFinal Accepted Versio

Optimasi Portofolio Resiko Menggunakan Model Markowitz MVO Dikaitkan dengan Keterbatasan Manusia dalam Memprediksi Masa Depan dalam Perspektif Al-Qur`an

Risk portfolio on modern finance has become increasingly technical, requiring the use of sophisticated mathematical tools in both research and practice. Since companies cannot insure themselves completely against risk, as human incompetence in predicting the future precisely that written in Al-Quran surah Luqman verse 34, they have to manage it to yield an optimal portfolio. The objective here is to minimize the variance among all portfolios, or alternatively, to maximize expected return among all portfolios that has at least a certain expected return. Furthermore, this study focuses on optimizing risk portfolio so called Markowitz MVO (Mean-Variance Optimization). Some theoretical frameworks for analysis are arithmetic mean, geometric mean, variance, covariance, linear programming, and quadratic programming. Moreover, finding a minimum variance portfolio produces a convex quadratic programming, that is minimizing the objective function ðð¥with constraintsð ð 𥠥 ðandð´ð¥ = ð. The outcome of this research is the solution of optimal risk portofolio in some investments that could be finished smoothly using MATLAB R2007b software together with its graphic analysis

Search for supersymmetry in events with one lepton and multiple jets in proton-proton collisions at root s=13 TeV

Peer reviewe

Search for anomalous couplings in boosted WW/WZ -> l nu q(q)over-bar production in proton-proton collisions at root s=8TeV

Peer reviewe

Masses, radii, and orbits of small Kepler planets: the transition from gaseous to rocky planets

We report on the masses, sizes, and orbits of the planets orbiting 22 Kepler stars. There are 49 planet candidates around these stars, including 42 detected through transits and 7 revealed by precise Doppler measurements of the host stars. Based on an analysis of the Kepler brightness measurements, along with high-resolution imaging and spectroscopy, Doppler spectroscopy, and (for 11 stars) asteroseismology, we establish low false-positive probabilities (FPPs) for all of the transiting planets (41 of 42 have an FPP under 1%), and we constrain their sizes and masses. Most of the transiting planets are smaller than three times the size of Earth. For 16 planets, the Doppler signal was securely detected, providing a direct measurement of the planet's mass. For the other 26 planets we provide either marginal mass measurements or upper limits to their masses and densities; in many cases we can rule out a rocky composition. We identify six planets with densities above 5 g cm-3, suggesting a mostly rocky interior for them. Indeed, the only planets that are compatible with a purely rocky composition are smaller than 2 R ⊕. Larger planets evidently contain a larger fraction of low-density material (H, He, and H2O)