LEADERS OF THE PACK Campbell, Colin; Cool, Jennings; Gentry, Connie ...
Business, North Carolina,
02/2022, Volume:
42, Issue:
2
Trade Publication Article
Decades of talk about the importance of empowering minority-owned businesses has led to limited success. ...most leaders acknowledged the importance of greater inclusion in the broader business ...community while noting the reality that business success inevitably requires personal initiative. Does my team feel important?" BAYHAVEN RESTAURANT GROUP Charlotte Owners: Greg and Subrina Collier Founded: The Yolk, 2012 Employees: 17 Pivoting through the COVID-19 pandemic has been a hurdle for the hospitality industry, but restaurateurs Greg and Subrina Collier have not lost momentum. In the following year, Greg and Subrina formed BayHaven Restaurant Group with a mission of fostering economic empowerment and community development.
Ecologists have long struggled to predict features of ecological systems, such as the numbers and diversity of organisms. The wide range of body sizes in ecological communities, from tiny microbes to ...large animals and plants, is emerging as the key to prediction. Based on the relationship between body size and features such as biological rates, the physics of water and the amount of habitat available, we may be able to understand patterns of abundance and diversity, biogeography, interactions in food webs and the impact of fishing, adding up to a potential 'periodic table' for ecology. Remarkable progress on the unravelling, describing and modelling of aquatic food webs, revealing the fundamental role of body size, makes a book emphasising marine and freshwater ecosystems particularly apt. In this 2007 book, the importance of body size is examined at a range of scales that will be of interest to professional ecologists, from students to senior researchers.
We validate the discovery of a 2 Earth radii sub-Neptune-size planet around the nearby high proper motion M2.5-dwarf G 9-40 (EPIC 212048748), using high-precision near-infrared (NIR) radial velocity ...(RV) observations with the Habitable-zone Planet Finder (HPF), precision diffuser-assisted ground-based photometry with a custom narrow-band photometric filter, and adaptive optics imaging. At a distance of \(d=27.9\mathrm{pc}\), G 9-40b is the second closest transiting planet discovered by K2 to date. The planet's large transit depth (\(\sim\)3500ppm), combined with the proximity and brightness of the host star at NIR wavelengths (J=10, K=9.2) makes G 9-40b one of the most favorable sub-Neptune-sized planet orbiting an M-dwarf for transmission spectroscopy with JWST, ARIEL, and the upcoming Extremely Large Telescopes. The star is relatively inactive with a rotation period of \(\sim\)29 days determined from the K2 photometry. To estimate spectroscopic stellar parameters, we describe our implementation of an empirical spectral matching algorithm using the high-resolution NIR HPF spectra. Using this algorithm, we obtain an effective temperature of \(T_{\mathrm{eff}}=3404\pm73\)K, and metallicity of \(\mathrm{Fe/H}=-0.08\pm0.13\). Our RVs, when coupled with the orbital parameters derived from the transit photometry, exclude planet masses above \(11.7 M_\oplus\) with 99.7% confidence assuming a circular orbit. From its radius, we predict a mass of \(M=5.0^{+3.8}_{-1.9} M_\oplus\) and an RV semi-amplitude of \(K=4.1^{+3.1}_{-1.6}\mathrm{m\:s^{-1}}\), making its mass measurable with current RV facilities. We urge further RV follow-up observations to precisely measure its mass, to enable precise transmission spectroscopic measurements in the future.
The discovery and characterization of exoplanets around nearby stars is driven by profound scientific questions about the uniqueness of Earth and our Solar System, and the conditions under which life ...could exist elsewhere in our Galaxy. Doppler spectroscopy, or the radial velocity (RV) technique, has been used extensively to identify hundreds of exoplanets, but with notable challenges in detecting terrestrial mass planets orbiting within habitable zones. We describe infrared RV spectroscopy at the 10 m Hobby-Eberly telescope that leverages a 30 GHz electro-optic laser frequency comb with nanophotonic supercontinuum to calibrate the Habitable Zone Planet Finder spectrograph. Demonstrated instrument precision <10 cm/s and stellar RVs approaching 1 m/s open the path to discovery and confirmation of habitable zone planets around M-dwarfs, the most ubiquitous type of stars in our Galaxy.
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